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179 results on '"Nurushev, SB"'

1. Future of low-x forward physics at RHIC

Author: Bland, LC, Bieser, F, Brown, RL, Crawford, HJ, Derevshchikov, AA, Drachenberg, JL, Engelage, J, Eun, L, Gagliardi, CA, Heppelmann, S, Judd, EG, Kravtsov, VI, Matulenko, Yu A, Meschanin, AP, Morozov, DA, Nogach, LV, Nurushev, SB, Ogawa, A, Perkins, C, Rakness, G, Shestermanov, KE, and Vasiliev, AN
Subjects: hep-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: Comparisons of particle production from high-energy ion collisions with next-to-leading order perturbative QCD calculations show good agreement down to moderate transverse momentum values. Distributions of azimuthal angle differences between coincident hadrons in these collisions support a partonic origin to the particle production again down to moderate transverse momentum values. The rapidity dependence of inclusive and coincident particle production can therefore be used to probe parton distribution functions down to small momentum fractions where theory anticipates that parton saturation could be present. This paper describes how such experiments could be completed. © Springer-Verlag 2005.
Published: 2005

2. The STAR beam energy scan phase II physics and upgrades

Author: YANG, C, ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, ASHRAF, MU, ATTRI, A, AVERICHEV, GS, BAI, X, BAIRATHI, V, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, JD, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCDL, CAMPBELL, JM, CEBRA, D, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTERJEE, A, CHATTOPADHYAY, S, CHEN, X, CHEN, JH, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, AI, HAMED, A, HAGUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HORVAT, S, HUANG, T, HUANG, B, HUANG, X, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JENTSCH, A, JIA, J, JIANG, K, JUDD, EG, KABANA, S, KALINLDN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, X, LI, Y, LI, C, LI, W, LIN, T, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, LUO, S, MA, GL, MA, L, ME, YG, MA, R, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MATIS, HS, MCDONALD, D, MCKINZIE, S, MEEHAN, K, MEI, JC, MILLER, ZW, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, VA, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLUTA, J, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RAY, RL, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, A, SHARMA, B, SHARMA, MK, SHEN, WQ, SHI, Z, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLYST, W, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, Y, SUN, Z, SUN, XM, SURROW, B, SVIRIDA, DN, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, A, THADER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TODOROKI, T, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEAEK, F, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, H, WANG, F, WANG, Y, WANG, JS, WANG, G, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIAO, ZG, XIE, W, XIE, G, XIN, K, XU, N, XU, QH, XU, Z, XU, J, XU, H, XU, YF, YANG, S, YANG, Y, YANG, Q, YE, Z, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, Z, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, J, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Qcd phase diagram, Detector, 01 natural sciences, law.invention, Nuclear physics, Upgrade, law, Critical point (thermodynamics), Baryon density, 0103 physical sciences, Detector Upgrade, High Energy Physics::Experiment, Physics Opportunity, Nuclear Experiment, 010306 general physics, Bes-Ii, Qcd Phase Diagram, Beam energy, Order of magnitude, Electron cooling
Abstract: The second phase of the Beam Energy Scan at RHIC, BPS-II, is scheduled for 2019-2020 and will explore with precision measurements the high baryon density region of the QCD phase diagram. The program will examine the energy region of interest determined from the results of BES-I. Some of the key measurements anticipated are: the net-protons kurtosis that could pinpoint the position of a critical point, the directed flow that might prove a softening of the EOS, and the chiral restoration in the dilepton channel. The measurements will be possible with the order of magnitude better statistics provided by the electron cooling upgrade of RHIC and with the detector upgrades planned to extend STAR's experimental reach. The upgrades are: the inner TPC sectors (iTPC), the Event Plane Detector (EPD), and the end -cap TOF (eTOF). We present the BES-II program details and the physics opportunities enabled by these upgrades.
Published: 2017
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3. Azimuthal anisotropy in Cu plus Au collisions at root s(NN)=200 GeV

Author: Adamczyk, L, Adams, JR, Adkins, JK, Agakishiev, G, Aggarwa, MM, Ahammed, Z, Ajitanand, NN, Alekseev, I, Anderson, DM, Aoyama, R, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Attri, A, Averichev, GS, Bai, X, Bairathi, V, Barish, K, Behera, A, Bellwied, R, Bhasin, A, Bhati, AK, Bhattarai, P, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Boucheti, J, Brandenburg, JD, Brandin, AV, Brown, D, Bryslawskyj, J, Bunzarov, I, Butterworth, J, Caines, H, Sanchez, MCDLB, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, Z, Chankova-Bunzarova, N, Chatterjee, A, Chattopadhyay, S, Chen, X, Chen, JH, Cheng, J, Cherney, M, Christie, W, Contin, G, Crawford, HJ, Das, S, Dedovich, TG, Deng, J, Deppner, IM, Derevschikov, AA, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Draper, JE, Dunlop, JC, Efimov, LG, Elsey, N, Engelage, J, Eppley, G, Esha, R, Esumi, S, Evdokimov, O, Ewigleben, J, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Federicova, P, Fedorisin, J, Feng, Z, Filipi, P, Finch, E, Fisyak, Y, Flores, CE, Fujita, J, Fulek, L, Gagliardi, CA, Geurts, F, Gibson, A, Girard, M, Grosnick, D, Gunarathne, DS, Guo, Y, Gupta, A, Guryn, W, Hamad, AI, Hamed, A, Harlenderova, A, Harris, JW, He, L, Heppelmann, S, Herrmann, N, Hirsch, A, Horvat, S, Huang, X, Huang, HZ, Huang, T, Huang, B, Humanic, TJ, Huo, P, Igo, G, Jacobs, WW, Jentsch, A, Jia, J, Jiang, K, Jowzaee, S, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kapukchyan, D, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Khan, Z, Kikola, DP, Kim, C, Kisel, I, Kisiel, A, Kochenda, L, Kocmanek, M, Kollegger, T, Kosarzewski, LK, Kraishan, AF, Krauth, L, Kravtsov, P, Krueger, K, Kulathunga, N, Kumar, L, Kvapil, J, Kwasizur, JH, Lacey, R, Landgraf, JM, Landry, KD, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Lee, W, Li, C, Li, X, Li, Y, Lidrych, J, Lin, T, Lisa, MA, Liu, F, Liu, Y, Liu, P, Liu, H, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, S, Luo, X, Ma, GL, Ma, R, Ma, YG, Ma, L, Magdy, N, Majka, R, Mallick, D, Margetis, S, Markert, C, Matis, HS, Mayes, D, Meehan, K, Mei, JC, Miller, ZW, Minaev, NG, Mioduszewski, S, Mishra, D, Mizuno, S, Mohanty, B, Mondal, MM, Morozov, DA, Mustafa, MK, Nasim, M, Nayak, TK, Nelson, JM, Nemes, DB, Nie, M, Nigmatkulov, G, Niida, T, Nogach, LV, Nonaka, T, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Okorokov, VA, Jr, OD, Page, BS, Pak, R, Pandit, Y, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pluta, J, Poniatowska, K, Porter, J, Posik, M, Poskanzer, AM, Pruthii, NK, Przybycien, M, Putschke, J, Quintero, A, Ramachandran, S, Ray, RL, Reed, R, Rehbein, MJ, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Roth, JD, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PK, Salur, S, Sandweiss, J, Saur, M, Schambach, J, Schmah, AM, Schmidke, WB, Schmitz, N, Schweid, BR, Seger, J, Sergeeva, M, Seto, R, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Shen, WQ, Shi, SS, Shi, Z, Shou, QY, Sichtermann, EP, Sikora, R, Simko, M, Singha, S, Skoby, MJ, Smirnov, N, Smirnov, D, Solyst, W, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Stewart, DJ, Strikhanov, M, Stringfellow, B, Suaide, AAP, Sugiura, T, Sumbera, M, Summa, B, Sun, X, Sun, Y, Sun, XM, Surrow, B, Svirida, DN, Tang, Z, Tang, AH, Taranenko, A, Tarnowsky, T, Tawfik, A, Thader, J, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Trzeciak, BA, Tsai, OD, Tu, B, Ullrich, T, Underwood, DG, Upsal, I, Van Buren, G, Van Nieuwenhuizen, G, Vasiliev, AN, Videbaek, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, G, Wang, F, Wang, Y, Webb, G, Webb, JC, Wen, L, Westfall, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, G, Xie, W, Xu, QH, Xu, YF, Xu, J, Xu, N, Xu, Z, Yang, C, Yang, S, Yang, Q, Yang, Y, Ye, Z, Yi, L, Yip, K, Yoo, I-K, Yu, N, Zbroszczyk, H, Zha, W, Zhang, JB, Zhang, J, Zhang, S, Zhang, L, Zhang, XP, Zhang, Z, Zhang, Y, Zhao, J, Zhong, C, Zhou, C, Zhou, L, Zhu, X, Zhu, Z, Zyzak, M, and Collaboration, STAR
Published: 2018
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4. Global polarization of Lambda hyperons in Au plus Au collisions at root s(NN)=200 GeV

Author: Adam, J, Adamczyk, L, Adams, JR, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Ajitanand, NN, Alekseev, I, Anderson, DM, Aoyama, R, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Atetalla, F, Attri, A, Averichev, GS, Bai, X, Bairathi, V, Barish, K, Bassin, AJ, Behera, A, Bellwied, R, Bhasin, A, Bhati, AK, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Brandenburg, JD, Brandin, AV, Brown, D, Bryslawskyj, J, Bunzarovi, I, Butterworth, J, Caines, H, Sanchez, M Calderon de la Barca, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, F-H, Chang, Z, Chankova-Bunzarova, N, Chatterjee, A, Chattopadhyay, S, Chen, JH, Chen, X, Cheng, J, Cherney, M, Christie, W, Contin, G, Crawford, HJ, Das, S, Dedovich, TG, Deppner, IM, Derevschikov, AA, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Dunlop, JC, Efimov, LG, Elsey, N, Engelage, J, Eppley, G, Esha, R, Esumi, S, Evdokimov, O, Ewigleben, J, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Federicova, P, Fedorisin, J, Filip, P, Finch, E, Fisyak, Y, Flores, CE, Fulek, L, Gagliardi, CA, Galatyuk, T, Geurts, F, Gibson, A, Grosnick, D, Gunarathne, DS, Guo, Y, Guptai, A, Guryn, W, Hamad, AI, Hamed, A, Harlenderova, A, Harris, JW, He, L, Heppelmann, S, Herrmann, N, Hirsch, A, Holub, L, Horvat, S, Huang, X, Huang, B, Huang, SL, Huang, HZ, Huang, T, Humanic, TJ, Huo, P, Igo, G, Jacobs, WW, Jentsch, A, Jia, J, Jiang, K, Jowzaee, S, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kapukchyan, D, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Kikola, DP, Kim, C, Kinghorn, TA, Kise, I, Kisiel, A, Kochenda, L, Kosarzewski, LK, Kraishan, AF, Kramarik, L, Krauth, L, Kravtsov, R, Krueger, K, Kulathunga, N, Kumar, S, Kumar, L, Kvapil, J, Kwasizur, JH, Lacey, R, Landgraf, JM, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Li, X, Li, C, Li, W, Li, Y, Liang, Y, Lidrych, J, Lin, T, Lipiec, A, Lisa, MA, Liu, E, Liu, P, Liu, H, Liu, Y, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, X, Luo, S, Ma, GL, Ma, YG, Ma, L, Ma, R, Magdy, N, Majka, R, Mallick, D, Margetis, S, Markert, C, Matis, HS, Matonoha, O, Mayes, D, Mazer, JA, Meehan, K, Mei, JC, Minaev, NG, Mioduszewski, S, Mishra, D, Mohanty, B, Mondal, MM, Mooney, I, Morozov, DA, Nasim, Md, Negrete, JD, Nelson, JM, Nemes, DB, Nie, M, Nigmatkulov, G, Niida, T, Nogach, LV, Nonaka, T, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Oh, S, Okorokov, VA, Jr, Olvitt D, Page, BS, Pak, R, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pluta, J, Porter, J, Posik, M, Pruthi, NK, Przybycien, M, Putschke, J, Quintero, A, Radhakrishnan, SK, Ramachandran, S, Ray, RL, Reed, R, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PK, Salur, S, Sandweiss, J, Schambach, J, Schmah, AM, Schmidke, WB, Schmitz, N, Schweid, BR, Seck, F, Seger, J, Sergeeva, M, Seto, R, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Shen, WQ, Shen, F, Shi, SS, Shou, QY, Sichtermann, EP, Siejka, S, Sikora, R, Simko, M, Singha, S, Smirnov, N, Smirnov, D, Solyst, W, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Stewart, DJ, Strikhanov, M, Stringfellow, B, Suaide, AAP, Sugiura, T, Sumbera, M, Summa, B, Sun, Y, Sun, X, Sun, XM, Surrow, B, Svirida, DN, Szymanski, P, Tang, Z, Tang, AH, Taranenko, A, Tarnowsky, T, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Tomkie, CA, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Tsai, OD, Tu, B, Ullrich, T, Underwood, DG, Upsal, I, Van Buren, G, Vanek, J, Vasiliev, AN, Vassiliev, I, Videbaek, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, G, Wang, Y, Wang, F, Webb, JC, Wen, L, Westfal, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, G, Xie, W, Xu, QH, Xu, Z, Xu, J, Xu, YF, Xu, N, Yang, S, Yang, C, Yang, Q, Yang, Y, Ye, Z, Yi, L, Yip, K, Yoo, I-K, Yu, N, Zbroszczyk, H, Zha, W, Zhang, Z, Zhang, L, Zhang, Y, Zhang, XP, Zhang, J, Zhang, S, Zhao, J, Zhong, C, Zhou, C, Zhou, L, Zhu, Z, Zhu, X, Zyzak, M, and Collaboration, STAR
Published: 2018

5. Beam Energy Dependence of Jet-Quenching Effects in Au plus Au Collisions at root s(NN)=7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV

Author: Adamczyk, L, Adams, JR, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Ajitanand, NN, Alekseev, I, Anderson, DM, Aoyama, R, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Attri, A, Averichev, GS, Bai, X, Bairathi, V, Barish, K, Behera, A, Bellwied, R, Bhasin, A, Bhati, AK, Bhattarai, P, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Bouchet, J, Brandenburg, JD, Brandin, AV, Brown, D, Bunzarov, I, Butterworth, J, Caines, H, Sanchez, M Calderon de la Barca, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, Z, Chankova-Bunzarova, N, Chatterjee, A, Chattopadhyay, S, Chen, JH, Chen, X, Cheng, J, Cherney, M, Christie, W, Contin, G, Crawford, HJ, Das, S, De Silva, LC, Debbe, RR, Dedovich, TG, Deng, J, Derevschikov, AA, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Draper, JE, Dunkelberger, LE, Dunlop, JC, Efimov, LG, Elsey, N, Engelage, J, Eppley, G, Esha, R, Esumi, S, Evdokimov, O, Ewigleben, J, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Federicova, P, Fedorisin, J, Feng, Z, Filip, P, Finch, E, Fisyak, Y, Flores, CE, Fujita, J, Fulek, L, Gagliardi, CA, Garand, D, Geurts, F, Gibson, A, Girard, M, Grosnick, D, Gunarathne, DS, Guo, Y, Gupta, S, Gupta, A, Guryn, W, Hamad, AI, Hamed, A, Harlenderova, A, Harris, JW, He, L, Heppelmann, S, Hirsch, A, Hoffmann, GW, Horvat, S, Huang, X, Huang, HZ, Huang, T, Huang, B, Humanic, TJ, Huo, P, Igo, G, Jacobs, WW, Jentsch, A, Jia, J, Jiang, K, Jowzaee, S, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kapukchyan, D, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Khan, Z, Kikola, DP, Kim, C, Kisel, I, Kisiel, A, Kochenda, L, Kocmanek, M, Kollegger, T, Kosarzewski, LK, Kraishan, AF, Krauth, L, Kravtsov, P, Krueger, K, Kulathunga, N, Kumar, L, Kvapil, J, Kwasizur, JH, Lacey, R, Landgraf, JM, Landry, KD, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Li, C, Li, W, Li, Y, Li, X, Lidrych, J, Lin, T, Lisa, MA, Liu, P, Liu, F, Liu, H, Liu, Y, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, X, Luo, S, Ma, GL, Ma, L, Ma, YG, Ma, R, Magdy, N, Majka, R, Mallick, D, Margetis, S, Markert, C, Matis, HS, Meehan, K, Mei, JC, Miller, ZW, Minaev, NG, Mioduszewski, S, Mishra, D, Mizuno, S, Mohanty, B, Mondal, MM, Morozov, DA, Mustafa, MK, Nasim, Md, Nayak, TK, Nelson, JM, Nie, M, Nigmatkulov, G, Niida, T, Nogach, LV, Nonaka, T, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Okorokov, VA, Jr, Olvitt D, Page, BS, Pak, R, Pandit, Y, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pile, P, Pluta, J, Poniatowska, K, Porter, J, Posik, M, Pruthi, NK, Przybycien, M, Putschke, J, Qiu, H, Quintero, A, Ramachandran, S, Ray, RL, Reed, R, Rehbein, MJ, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Roth, JD, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PK, Salur, S, Sandweiss, J, Sangaline, E, Saur, M, Schambach, J, Schmah, AM, Schmidke, WB, Schmitz, N, Schweid, BR, Seger, J, Sergeeva, M, Seto, R, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Sharma, MK, Sharma, A, Shen, WQ, Shi, Z, Shi, SS, Shou, QY, Sichtermann, EP, Sikora, R, Simko, M, Singha, S, Skoby, MJ, Smirnov, D, Smirnov, N, Solyst, W, Song, L, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Strikhanov, M, Stringfellow, B, Sugiura, T, Sumbera, M, Summa, B, Sun, XM, Sun, Y, Sun, X, Surrow, B, Svirida, DN, Tang, AH, Tang, Z, Taranenko, A, Tarnowsky, T, Tawfik, A, Thader, J, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Trzeciak, BA, Tsai, OD, Ullrich, T, Underwood, DG, Upsal, I, Van Buren, G, van Nieuwenhuizen, G, Vasiliev, AN, Videbaek, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, F, Wang, Y, Wang, G, Webb, JC, Webb, G, Wen, L, Westfall, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, G, Xie, W, Xu, Z, Xu, N, Xu, YF, Xu, QH, Xu, J, Yang, Q, Yang, C, Yang, S, Yang, Y, Ye, Z, Yi, L, Yip, K, Yoo, I-K, Yu, N, Zbroszczyk, H, Zha, W, Zhang, XP, Zhang, S, Zhang, JB, Zhang, J, Zhang, Z, Zhang, Y, Zhao, J, Zhong, C, Zhou, L, Zhou, C, Zhu, Z, Zhu, X, Zyzak, M, and Collaboration, STAR
Published: 2018

6. Measurement of the H-3(Lambda) lifetime in Au plus Au collisions at the BNL Relativistic Heavy Ion Collider

Author: Adamczyk, L, Adams, JR, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Ajitanand, NN, Alekseev, I, Alford, J, Anderson, DM, Aoyama, R, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Attri, A, Averichevi, GS, Bai, X, Bairathi, V, Barish, K, Behera, A, Bellwied, R, Bhasin, A, Bhati, AK, Bhattarai, P, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Bouchet, J, Brandenburg, JD, Brandin, AV, Brown, D, Bryslawskyj, J, Bunzarov, I, Butterworth, J, Caines, H, Sanchez, M Calderon De La Barca, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, Z, Chankova-Bunzarova, N, Chatterjee, A, Chattopadhyay, S, Chen, X, Chen, JH, Cheng, J, Cherney, M, Christie, W, Contin, G, Crawford, HJ, Das, S, Dedovichi, TG, Deng, J, Deppner, IM, Derevschikov, AA, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Draper, JE, Dunlop, JC, Efimov, LG, Elsey, N, Engelage, J, Eppley, G, Esha, R, Esumi, S, Evdokimov, O, Ewigleben, J, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Federicova, P, Fedorisin, J, Feng, Z, Filip, P, Finch, E, Fisyak, Y, Flores, CE, Fujita, J, Fulek, L, Gagliardi, CA, Geurts, F, Gibson, A, Girard, M, Grosnick, D, Gunarathne, DS, Guo, Y, Gupta, A, Guryn, W, Hamad, AI, Hamed, A, Harlenderova, A, Harris, JW, He, L, Heppelmann, S, Herrmann, N, Hirsch, A, Horvat, S, Huang, B, Huang, T, Huang, X, Huang, HZ, Humanic, TJ, Huo, P, Igo, G, Jacobs, WW, Jentsch, A, Jia, J, Jiang, K, Jowzaee, S, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kapukchyan, D, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Khan, Z, Kikola, Dp, Kim, C, Kisel, I, Kisiel, A, Kochenda, L, Kocmanek, M, Kollegger, T, Kosarzewski, LK, Kraishan, AF, Krauth, L, Kravtsov, P, Krueger, K, Kulathunga, N, Kumar, L, Kvapil, J, Kwasizur, JH, Lacey, R, Landgraf, JM, Landry, KD, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Li, X, Li, W, Li, Y, Li, C, Lidrych, J, Lin, T, Lisa, MA, Liu, F, Liu, P, Liu, Y, Liu, H, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, X, Luo, S, Ma, GL, Ma, L, Ma, R, Ma, YG, Magdy, N, Majka, R, Mallick, D, Margetis, S, Markert, C, Matis, HS, Mayes, D, Meehan, K, Mei, JC, Miller, ZW, Minaev, NG, Mioduszewski, S, Mishra, D, Mizuno, S, Mohanty, B, Mondal, MM, Morozov, DA, Mustafa, MK, Nasim, Md, Nayak, TK, Nelson, JM, Nemes, DB, Nie, M, Nigmatkulov, G, Niida, T, Nogach, LV, Nonaka, T, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Okorokov, VA, Jr, Olvitt D, Page, BS, Pak, R, Pandit, Y, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pluta, J, Poniatowska, K, Porter, J, Posik, M, Pruthi, NK, Przybycien, M, Putschke, J, Quintero, A, Ramachandran, S, Ray, RL, Reed, R, Rehbein, MJ, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Roth, JD, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PK, Salur, S, Sandweiss, J, Saur, M, Schambach, J, Schmah, AM, Schmidke, WB, Schmitz, N, Schweid, BR, Seger, J, Sergeeva, M, Seto, R, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Shen, WQ, Shi, SS, Shi, Z, Shou, QY, Sichtermann, EP, Sikora, R, Simko, M, Singha, S, Skoby, MJ, Smirnov, N, Smirnov, D, Solyst, W, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Stewart, DJ, Strikhanov, M, Stringfellow, B, Suaide, AAP, Sugiura, T, Sumbera, M, Summa, B, Sun, Y, Sun, X, Sun, XM, Surrow, B, Svirida, DN, Tang, AH, Tang, Z, Taranenko, A, Tarnowsky, T, Tawfik, A, Thader, J, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Trzeciak, BA, Tsai, OD, Ullrich, T, Underwood, DG, Upsal, I, Van Buren, G, van Nieuwenhuizen, G, Vasiliev, AN, Videbaek, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, G, Wang, Y, Wang, F, Webb, G, Webb, JC, Wen, L, Westfal, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, G, Xie, W, Xu, YF, Xu, J, Xu, QH, Xu, N, Xu, Z, Yang, S, Yang, Y, Yang, C, Yang, Q, Ye, Z, Yi, L, Yip, K, Yoo, I-K, Yu, N, Zbroszczyk, H, Zha, W, Zhang, Z, Zhang, J, Zhang, S, Zhang, Y, Zhang, XP, Zhang, JB, Zhao, J, Zhong, C, Zhou, L, Zhou, C, Zhu, X, Zhu, Z, Zyzak, M, and Collaboration, STAR
Published: 2018

7. Coherent diffractive photoproduction of $ρ^{0}$ mesons on gold nuclei at RHIC

Author: Collaboration, STAR, Adamczyk, L, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Ajitanand, NN, Alekseev, I, Anderson, DM, Aoyama, R, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Attri, A, Averichev, GS, Bai, X, Bairathi, V, Behera, A, Bellwied, R, Bhasin, A, Bhati, AK, Bhattarai, P, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Bouchet, J, Brandenburg, JD, Brandin, AV, Brown, D, Bunzarov, I, Butterworth, J, Caines, H, Sánchez, MCDLB, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, Z, Chankova-Bunzarova, N, Chatterjee, A, Chattopadhyay, S, Chen, X, Chen, JH, Cheng, J, Cherney, M, Christie, W, Contin, G, Crawford, HJ, Das, S, Silva, LCD, Debbe, RR, Dedovich, TG, Deng, J, Derevschikov, AA, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Draper, JE, Dunkelberger, LE, Dunlop, JC, Efimov, LG, Elsey, N, Engelage, J, Eppley, G, Esha, R, Esumi, S, Evdokimov, O, Ewigleben, J, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Federicova, P, Fedorisin, J, Feng, Z, Filip, P, Finch, E, Fisyak, Y, Flores, CE, Fujita, J, Fulek, L, Gagliardi, CA, Garand, D, Geurts, F, Gibson, A, Girard, M, Grosnick, D, Gunarathne, DS, Guo, Y, Gupta, A, Gupta, S, Guryn, W, Hamad, AI, Hamed, A, Harlenderova, A, Harris, JW, He, L, Heppelmann, S, Hirsch, A, Hoffmann, GW, Horvat, S, Huang, B, Huang, T, Huang, HZ, Huang, X, Humanic, TJ, Huo, P, Igo, G, Jacobs, WW, Jentsch, A, Jia, J, Jiang, K, Jowzaee, S, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Khan, Z, Kikoła, DP, Kisel, I, Kisiel, A, Klein, SR, Kochenda, L, Kocmanek, M, Kollegger, T, Kosarzewski, LK, Kraishan, AF, Kravtsov, P, Krueger, K, Kulathunga, N, Kumar, L, Kvapil, J, Kwasizur, JH, Lacey, R, Landgraf, JM, Landry, KD, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Li, W, Li, X, Li, C, Li, Y, Lidrych, J, Lin, T, Lisa, MA, Liu, Y, Liu, F, Liu, H, Liu, P, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, S, Luo, X, Ma, GL, Ma, YG, Ma, L, Ma, R, Magdy, N, Majka, R, Mallick, D, Margetis, S, Markert, C, Matis, HS, Meehan, K, Mei, JC, Miller, ZW, Minaev, NG, Mioduszewski, S, Mishra, D, Mizuno, S, Mohanty, B, Mondal, MM, Morozov, DA, Mustafa, MK, Nasim, M, Nayak, TK, Nelson, JM, Nie, M, Nigmatkulov, G, Niida, T, Nogach, LV, Nonaka, T, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Okorokov, VA, Jr, DO, Page, BS, Pak, R, Pandit, Y, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pile, P, Pluta, J, Poniatowska, K, Porter, J, Posik, M, Poskanzer, AM, Pruthi, NK, Przybycien, M, Putschke, J, Qiu, H, Quintero, A, Ramachandran, S, Ray, RL, Reed, R, Rehbein, MJ, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Roth, JD, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PK, Salur, S, Sandweiss, J, Saur, M, Schambach, J, Schmah, AM, Schmidke, WB, Schmitz, N, Schweid, BR, Seger, J, Sergeeva, M, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Sharma, A, Sharma, MK, Shen, WQ, Shi, Z, Shi, SS, Shou, QY, Sichtermann, EP, Sikora, R, Simko, M, Singha, S, Skoby, MJ, Smirnov, N, Smirnov, D, Solyst, W, Song, L, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Strikhanov, M, Stringfellow, B, Sugiura, T, Sumbera, M, Summa, B, Sun, Y, Sun, XM, Sun, X, Surrow, B, Svirida, DN, Tang, AH, Tang, Z, Taranenko, A, Tarnowsky, T, Tawfik, A, Thäder, J, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Trzeciak, BA, Tsai, OD, Ullrich, T, Underwood, DG, Upsal, I, Buren, GV, Nieuwenhuizen, GV, Vasiliev, AN, Videbæk, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, G, Wang, Y, Wang, F, Webb, JC, Webb, G, Wen, L, Westfall, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, W, Xie, G, Xu, J, Xu, N, Xu, QH, Xu, YF, Xu, Z, Yang, Y, Yang, Q, Yang, C, Yang, S, Ye, Z, Yi, L, Yip, K, Yoo, I-K, Yu, N, Zbroszczyk, H, Zha, W, Zhang, Z, Zhang, XP, Zhang, JB, Zhang, S, Zhang, J, Zhang, Y, Zhao, J, Zhong, C, Zhou, L, Zhou, C, Zhu, X, Zhu, Z, and Zyzak, M
Subjects: hep-ex, Nuclear Experiment, nucl-ex
Abstract: The STAR Collaboration reports on the photoproduction of $\pi^+\pi^-$ pairs in gold-gold collisions at a center-of-mass energy of 200 GeV/nucleon-pair. These pion pairs are produced when a nearly-real photon emitted by one ion scatters from the other ion. We fit the $\pi^+\pi^-$ invariant mass spectrum with a combination of $\rho$ and $\omega$ resonances and a direct $\pi^+\pi^-$ continuum. This is the first observation of the $\omega$ in ultra-peripheral collisions, and the first measurement of $\rho-\omega$ interference at energies where photoproduction is dominated by Pomeron exchange. The $\omega$ amplitude is consistent with the measured $\gamma p\rightarrow \omega p$ cross section, a classical Glauber calculation and the $\omega\rightarrow\pi^+\pi^-$ branching ratio. The $\omega$ phase angle is similar to that observed at much lower energies, showing that the $\rho-\omega$ phase difference does not depend significantly on photon energy. The $\rho^0$ differential cross section $d\sigma/dt$ exhibits a clear diffraction pattern, compatible with scattering from a gold nucleus, with 2 minima visible. The positions of the diffractive minima agree better with the predictions of a quantum Glauber calculation that does not include nuclear shadowing than with a calculation that does include shadowing.
Published: 2018

8. Coherent diffractive photoproduction of ρ0 mesons on gold nuclei at 200 GeV/nucleon-pair at the Relativistic Heavy Ion Collider

Author: Adamczyk, L, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Ajitanand, NN, Alekseev, I, Anderson, DM, Aoyama, R, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Attri, A, Averichev, GS, Bai, X, Bairathi, V, Behera, A, Bellwied, R, Bhasin, A, Bhati, AK, Bhattarai, P, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Bouchet, J, Brandenburg, JD, Brandin, AV, Brown, D, Bunzarov, I, Butterworth, J, Caines, H, Sanchez, M Calderon de la Barca, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, Z, Chankova-Bunzarova, N, Chatterjee, A, Chattopadhyay, S, Chen, X, Chen, JH, Cheng, J, Cherney, M, Christie, W, Contin, G, Crawford, HJ, Das, S, De Silva, LC, Debbe, RR, Dedovich, TG, Deng, J, Derevschikov, AA, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Draper, JE, Dunkelberger, LE, Dunlop, JC, Efimov, LG, Elsey, N, Engelage, J, Eppley, G, Esha, R, Esumi, S, Evdokimov, O, Ewigleben, J, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Federicova, P, Fedorisin, J, Feng, Z, Filip, P, Finch, E, Fisyak, Y, Flores, CE, Fulek, L, Gagliardi, CA, Garand, D, Geurts, F, Gibson, A, Girard, M, Grosnick, D, Gunarathne, DS, Guo, Y, Gupta, A, Gupta, S, Guryn, W, Hamad, AI, Hamed, A, Harlenderova, A, Harris, JW, He, L, Heppelmann, S, Hirsch, A, Hoffmann, GW, Horvat, S, Huang, T, Huang, B, Huang, X, Huang, HZ, Humanic, TJ, Huo, P, Igo, G, Jacobs, WW, Jentsch, A, Jia, J, Jiang, K, Jowzaee, S, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Khan, Z, Kikola, DP, Kisel, I, Kisiel, A, Klein, SR, Kochenda, L, Kocmanek, M, Kollegger, T, Kosarzewski, LK, Kraishan, AF, Kravtsov, P, Krueger, K, Kulathunga, N, Kumar, L, Kvapil, J, Kwasizur, JH, Lacey, R, Landgraf, JM, Landry, KD, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Li, X, Li, C, Li, W, Li, Y, Lidrych, J, Lin, T, Lisa, MA, Liu, H, Liu, P, Liu, Y, Liu, F, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, S, Luo, X, Ma, GL, Ma, L, Ma, YG, Ma, R, Magdy, N, Majka, R, Mallick, D, Margetis, S, Markert, C, Matis, HS, Meehan, K, Mei, JC, Miller, ZW, Minaev, NG, Mioduszewski, S, Mishra, D, Mizuno, S, Mohanty, B, Mondal, MM, Morozov, DA, Mustafa, MK, Nasim, Md, Nayak, TK, Nelson, JM, Nie, M, Nigmatkulov, G, Niida, T, Nogach, LV, Nonaka, T, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Okorokov, VA, Jr, Olvitt D, Page, BS, Pak, R, Pandit, Y, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pile, P, Pluta, J, Poniatowska, K, Porter, J, Posik, M, Poskanzer, AM, Pruthi, NK, Przybycien, M, Putschke, J, Qiu, H, Quintero, A, Ramachandran, S, Ray, RL, Reed, R, Rehbein, MJ, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Roth, JD, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PK, Salur, S, Sandweiss, J, Saur, M, Schambach, J, Schmah, AM, Schmidke, WB, Schmitz, N, Schweid, BR, Seger, J, Sergeeva, M, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Sharma, A, Sharma, MK, Shen, WQ, Shi, Z, Shi, SS, Shou, QY, Sichtermann, EP, Sikora, R, Simko, M, Singha, S, Skoby, MJ, Smirnov, N, Smirnov, D, Solyst, W, Song, L, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Strikhanov, M, Stringfellow, B, Sugiura, T, Sumbera, M, Summa, B, Sun, Y, Sun, XM, Sun, X, Surrow, B, Svirida, DN, Tang, AH, Tang, Z, Taranenko, A, Tarnowsky, T, Tawfik, A, Thaeder, J, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Trzeciak, BA, Tsai, OD, Ullrich, T, Underwood, DG, Upsal, I, Van Buren, G, van Nieuwenhuizen, G, Vasiliev, AN, Videbk, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, G, Wang, Y, Wang, F, Webb, JC, Webb, G, Wen, L, Westfall, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, W, Xie, G, Xu, J, Xu, N, Xu, QH, Xu, YF, Xu, Z, Yang, Y, Yang, Q, Yang, C, Yang, S, Ye, Z, Yi, L, Yip, K, Yoo, I-K, Yu, N, Zbroszczyk, H, Zha, W, Zhang, Z, Zhang, XP, Zhang, JB, Zhang, S, Zhang, J, Zhang, Y, Zhao, J, Zhong, C, Zhou, L, Zhou, C, Zhu, X, Zhu, Z, Zyzak, M, Collaboration, Star, Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Ajitanand, N. N., Alekseev, I., Anderson, D. M., Aoyama, R., Aparin, A., Arkhipkin, D., Aschenauer, E. C., Ashraf, M. U., Attri, A., Averichev, G. S., Bai, X., Bairathi, V., Behera, A., Bellwied, R., Bhasin, A., Bhati, A. K., Bhattarai, P., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Bouchet, J., Brandenburg, J. D., Brandin, A. V., Brown, D., Bunzarov, I., Butterworth, J., Caines, H., Calderón De La Barca Sánchez, M., Campbell, J. M., Cebra, D., Chakaberia, I., Chaloupka, P., Chang, Z., Chankova-Bunzarova, N., Chatterjee, A., Chattopadhyay, S., Chen, X., Chen, J. H., Cheng, J., Cherney, M., Christie, W., Contin, G., Crawford, H. J., Das, S., De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., Derevschikov, A. A., Didenko, L., Dilks, C., Dong, X., Drachenberg, J. L., Draper, J. E., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Elsey, N., Engelage, J., Eppley, G., Esha, R., Esumi, S., Evdokimov, O., Ewigleben, J., Eyser, O., Fatemi, R., Fazio, S., Federic, P., Federicova, P., Fedorisin, J., Feng, Z., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Fulek, L., Gagliardi, C. A., Garand, D., Geurts, F., Gibson, A., Girard, M., Grosnick, D., Gunarathne, D. S., Guo, Y., Gupta, A., Gupta, S., Guryn, W., Hamad, A. I., Hamed, A., Harlenderova, A., Harris, J. W., He, L., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Horvat, S., Huang, T., Huang, B., Huang, X., Huang, H. Z., Humanic, T. J., Huo, P., Igo, G., Jacobs, W. W., Jentsch, A., Jia, J., Jiang, K., Jowzaee, S., Judd, E. G., Kabana, S., Kalinkin, D., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Khan, Z., Kikoła, D. P., Kisel, I., Kisiel, A., Klein, S. R., Kochenda, L., Kocmanek, M., Kollegger, T., Kosarzewski, L. K., Kraishan, A. F., Kravtsov, P., Krueger, K., Kulathunga, N., Kumar, L., Kvapil, J., Kwasizur, J. H., Lacey, R., Landgraf, J. M., Landry, K. D., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Li, X., Li, C., Li, W., Li, Y., Lidrych, J., Lin, T., Lisa, M. A., Liu, H., Liu, P., Liu, Y., Liu, F., Ljubicic, T., Llope, W. J., Lomnitz, M., Longacre, R. S., Luo, S., Luo, X., Ma, G. L., Ma, L., Ma, Y. G., Ma, R., Magdy, N., Majka, R., Mallick, D., Margetis, S., Markert, C., Matis, H. S., Meehan, K., Mei, J. C., Miller, Z. W., Minaev, N. G., Mioduszewski, S., Mishra, D., Mizuno, S., Mohanty, B., Mondal, M. M., Morozov, D. A., Mustafa, M. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nie, M., Nigmatkulov, G., Niida, T., Nogach, L. V., Nonaka, T., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Okorokov, V. A., Olvitt, D., Page, B. S., Pak, R., Pandit, Y., Panebratsev, Y., Pawlik, B., Pei, H., Perkins, C., Pile, P., Pluta, J., Poniatowska, K., Porter, J., Posik, M., Poskanzer, A. M., Pruthi, N. K., Przybycien, M., Putschke, J., Qiu, H., Quintero, A., Ramachandran, S., Ray, R. L., Reed, R., Rehbein, M. J., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Roth, J. D., Ruan, L., Rusnak, J., Rusnakova, O., Sahoo, N. R., Sahu, P. K., Salur, S., Sandweiss, J., Saur, M., Schambach, J., Schmah, A. M., Schmidke, W. B., Schmitz, N., Schweid, B. R., Seger, J., Sergeeva, M., Seyboth, P., Shah, N., Shahaliev, E., Shanmuganathan, P. V., Shao, M., Sharma, A., Sharma, M. K., Shen, W. Q., Shi, Z., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Sikora, R., Simko, M., Singha, S., Skoby, M. J., Smirnov, N., Smirnov, D., Solyst, W., Song, L., Sorensen, P., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Strikhanov, M., Stringfellow, B., Sugiura, T., Sumbera, M., Summa, B., Sun, Y., Sun, X. M., Sun, X., Surrow, B., Svirida, D. N., Tang, A. H., Tang, Z., Taranenko, A., Tarnowsky, T., Tawfik, A., Thäder, J., Thomas, J. H., Timmins, A. R., Tlusty, D., Todoroki, T., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Tripathy, S. K., Trzeciak, B. A., Tsai, O. D., Ullrich, T., Underwood, D. G., Upsal, I., Van Buren, G., Van Nieuwenhuizen, G., Vasiliev, A. N., Videbæk, F., Vokal, S., Voloshin, S. A., Vossen, A., Wang, G., Wang, Y., Wang, F., Webb, J. C., Webb, G., Wen, L., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y., Xiao, Z. G., Xie, W., Xie, G., Xu, J., Xu, N., Xu, Q. H., Xu, Y. F., Xu, Z., Yang, Y., Yang, Q., Yang, C., Yang, S., Ye, Z., Yi, L., Yip, K., Yoo, I. -K., Yu, N., Zbroszczyk, H., Zha, W., Zhang, Z., Zhang, X. P., Zhang, J. B., Zhang, S., Zhang, J., Zhang, Y., Zhao, J., Zhong, C., Zhou, L., Zhou, C., Zhu, X., Zhu, Z., and Zyzak, M.
Subjects: Nuclear reaction, Physics, RHIC, Particle physics, STAR, Meson, 010308 nuclear & particles physics, Branching fraction, rho mesons, 01 natural sciences, Omega, heavy Ion, heavy Ions, rho meson, Pion, 0103 physical sciences, Continuum (set theory), Nuclear Experiment, 010306 general physics, Nucleon, Glauber
Abstract: Author(s): Collaboration, STAR; Adamczyk, L; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Ajitanand, NN; Alekseev, I; Anderson, DM; Aoyama, R; Aparin, A; Arkhipkin, D; Aschenauer, EC; Ashraf, MU; Attri, A; Averichev, GS; Bai, X; Bairathi, V; Behera, A; Bellwied, R; Bhasin, A; Bhati, AK; Bhattarai, P; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Bouchet, J; Brandenburg, JD; Brandin, AV; Brown, D; Bunzarov, I; Butterworth, J; Caines, H; Sanchez, MCDLB; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, X; Chen, X; Chen, JH; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, HJ; Das, S; Silva, LCD; Debbe, RR; Dedovich, TG; Deng, J; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Draper, JE; Dunkelberger, LE; Dunlop, JC; Efimov, LG; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Federicova, P; Fedorisin, J; Feng, Z; Filip, P; Finch, E; Fisyak, Y; Flores, CE; Fujita, J; Fulek, L | Abstract: The STAR Collaboration reports on the photoproduction of $\pi^+\pi^-$ pairs in gold-gold collisions at a center-of-mass energy of 200 GeV/nucleon-pair. These pion pairs are produced when a nearly-real photon emitted by one ion scatters from the other ion. We fit the $\pi^+\pi^-$ invariant mass spectrum with a combination of $\rho$ and $\omega$ resonances and a direct $\pi^+\pi^-$ continuum. This is the first observation of the $\omega$ in ultra-peripheral collisions, and the first measurement of $\rho-\omega$ interference at energies where photoproduction is dominated by Pomeron exchange. The $\omega$ amplitude is consistent with the measured $\gamma p\rightarrow \omega p$ cross section, a classical Glauber calculation and the $\omega\rightarrow\pi^+\pi^-$ branching ratio. The $\omega$ phase angle is similar to that observed at much lower energies, showing that the $\rho-\omega$ phase difference does not depend significantly on photon energy. The $\rho^0$ differential cross section $d\sigma/dt$ exhibits a clear diffraction pattern, compatible with scattering from a gold nucleus, with 2 minima visible. The positions of the diffractive minima agree better with the predictions of a quantum Glauber calculation that does not include nuclear shadowing than with a calculation that does include shadowing.
Published: 2017
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9. Measurements of jet quenching with semi-inclusive hadron plus jet distributions in Au plus Au collisions at root s(NN)=200 GeV

Author: Adamczyk, L, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Ajitanand, NN, Alekseev, I, Anderson, DM, Aoyama, R, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Attri, A, Averichev, GS, Bai, X, Bairathi, V, Behera, A, Bellwied, R, Bhasin, A, Bhati, AK, Bhattarai, P, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Bouchet, J, Brandenburg, JD, Brandin, AV, Brown, D, Bunzarov, I, Butterworth, J, Caines, H, Sanchez, MCDLB, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, Z, Chankova-Bunzarova, N, Chatterjee, A, Chattopadhyay, S, Chen, X, Chen, JH, Cheng, J, Cherney, M, Christie, W, Contin, G, Crawford, HJ, Das, S, De Silva, LC, Debbe, RR, Dedovich, TG, Deng, J, Derevschikov, AA, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Draper, JE, Dunkelberger, LE, Dunlop, JC, Efimov, LG, Elsey, N, Engelage, J, Eppley, G, Esha, R, Esumi, S, Evdokimov, O, Ewigleben, J, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Federicova, P, Fedorisin, J, Feng, Z, Filip, P, Finch, E, Fisyak, Y, Flores, CE, Fulek, L, Gagliardi, CA, Garand, D, Geurts, F, Gibson, A, Girard, M, Grosnick, D, Gunarathne, DS, Guo, Y, Gupta, A, Gupta, S, Guryn, W, Hamad, AI, Hamed, A, Harlenderova, A, Harris, JW, He, L, Heppelmann, S, Hirsch, A, Hoffmann, GW, Horvat, S, Huang, T, Huang, B, Huang, X, Huang, HZ, Humanic, TJ, Huo, P, Igo, G, Jacobs, PM, Jacobs, WW, Jentsch, A, Jia, J, Jiang, K, Jowzaee, S, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Khan, Z, Kikola, DP, Kisel, I, Kisiel, A, Kochenda, L, Kocmanek, M, Kollegger, T, Kosarzewski, LK, Kraishan, AF, Kravtsov, P, Krueger, K, Kulathunga, N, Kumar, L, Kvapil, J, Kwasizur, JH, Lacey, R, Landgraf, JM, Landry, KD, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Li, X, Li, C, Li, W, Li, Y, Lidrych, J, Lin, T, Lisa, MA, Liu, H, Liu, P, Liu, Y, Liu, F, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, S, Luo, X, Ma, GL, Ma, L, Ma, YG, Ma, R, Magdy, N, Majka, R, Mallick, D, Margetis, S, Markert, C, Matis, HS, Meehan, K, Mei, JC, Miller, ZW, Minaev, NG, Mioduszewski, S, Mishra, D, Mizuno, S, Mohanty, B, Mondal, MM, Morozov, DA, Mustafa, MK, Nasim, M, Nayak, TK, Nelson, JM, Nie, M, Nigmatkulov, G, Niida, T, Nogach, LV, Nonaka, T, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Okorokov, VA, Jr, OD, Page, BS, Pak, R, Pandit, Y, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pile, P, Pluta, J, Poniatowska, K, Porter, J, Posik, M, Poskanzer, AM, Pruthi, NK, Przybycien, M, Putschke, J, Qiu, H, Quintero, A, Ramachandran, S, Ray, RL, Reed, R, Rehbein, MJ, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Roth, JD, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PK, Salur, S, Sandweiss, J, Saur, M, Schambach, J, Schmah, AM, Schmidke, WB, Schmitz, N, Schweid, BR, Seger, J, Sergeeva, M, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Sharma, A, Sharma, MK, Shen, WQ, Shi, Z, Shi, SS, Shou, QY, Sichtermann, EP, Sikora, R, Simko, M, Singha, S, Skoby, MJ, Smirnov, N, Smirnov, D, Solyst, W, Song, L, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Strikhanov, M, Stringfellow, B, Sugiura, T, Sumbera, M, Summa, B, Sun, Y, Sun, XM, Sun, X, Surrow, B, Svirida, DN, Tang, AH, Tang, Z, Taranenko, A, Tarnowsky, T, Tawfik, A, Thader, J, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Trzeciak, BA, Tsai, OD, Ullrich, T, Underwood, DG, Upsal, I, Van Buren, G, van Nieuwenhuizen, G, Vasiliev, AN, Videbk, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, G, Wang, Y, Wang, F, Webb, JC, Webb, G, Wen, L, Westfall, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, W, Xie, G, Xu, J, Xu, N, Xu, QH, Xu, YF, Xu, Z, Yang, Y, Yang, Q, Yang, C, Yang, S, Ye, Z, Yi, L, Yip, K, Yoo, I-K, Yu, N, Zbroszczyk, H, Zha, W, Zhang, Z, Zhang, XP, Zhang, JB, Zhang, S, Zhang, J, Zhang, Y, Zhao, J, Zhong, C, Zhou, L, Zhou, C, Zhu, X, Zhu, Z, Zyzak, M, and Collaboration, STAR
Published: 2017
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10. Direct virtual photon production in Au plus Au collisions at root s(NN)=200 GeV STAR Collaboration

Author: Adamczyk, L, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Ajitanand, NN, Alekseev, I, Anderson, DM, Aoyama, R, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Attri, A, Averichev, GS, Bai, X, Bairathi, V, Behera, A, Bellwied, R, Bhasin, A, Bhati, AK, Bhattarai, R, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Bouchet, J, Brandenburg, JD, Brandin, AV, Brown, D, Bunzarov, I, Butterworth, J, Caines, H, Sanchez, MCDLB, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, Z, Chankova-Bunzarova, N, Chatterjee, A, Chattopadhyay, S, Chen, X, Chen, JH, Cheng, J, Cherney, M, Christie, W, Contin, G, Crawford, HJ, Das, S, De Silva, LC, Debbe, RR, Dedovich, TG, Deng, J, Derevschikov, AA, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Draper, JE, Dunkelberger, LE, Dunlop, JC, Efimov, LG, Elsey, N, Engelage, J, Eppley, G, Esha, R, Esumi, S, Evdokimov, O, Ewigleben, J, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Federicova, P, Fedorisin, J, Feng, Z, Filip, P, Finch, E, Fisyak, Y, Flores, CE, Fujita, J, Fulek, L, Gagliardi, CA, Garand, D, Geurts, F, Gibson, A, Girard, M, Grosnick, D, Gunarathne, DS, Guo, Y, Gupta, A, Gupta, S, Guryn, W, Hamad, AI, Hamed, A, Harlenderova, A, Harris, JW, He, L, Heppelmann, S, Hirsch, A, Hoffmann, GW, Horvat, S, Huang, B, Huang, T, Huang, HZ, Huang, X, Humanic, TJ, Huo, P, Igo, G, Jacobs, WW, Jentsch, A, Jia, J, Jiang, K, Jowzaee, S, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Khan, Z, Kikola, DP, Kisel, I, Kisiel, A, Kochenda, L, Kocmanek, M, Kollegger, T, Kosarzewski, LK, Kraishan, AF, Kravtsov, P, Kruger, K, Kulathunga, N, Kumar, L, Kvapil, J, Kwasizur, JH, Lacey, R, Landgraf, JM, Landry, KD, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Li, W, Li, X, Li, C, Li, Y, Lidrych, J, Lin, T, Lisa, MA, Liu, Y, Liu, F, Liu, H, Liu, P, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, S, Luo, X, Ma, GL, Ma, YG, Ma, L, Ma, R, Magdy, N, Majka, R, Mallick, D, Margetis, S, Markert, C, Matis, HS, Meehan, K, Mei, JC, Miller, ZW, Minaev, NG, Mioduszewski, S, Mishra, D, Mizuno, S, Mohanty, B, Mondal, MM, Morozov, DA, Mustafa, MK, Nasim, M, Nayak, TK, Nelson, JM, Nie, M, Nigmatkulov, G, Niida, T, Nogach, LV, Nonaka, T, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Okorokov, VA, Jr, OD, Page, BS, Pak, R, Pandit, Y, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pile, P, Pluta, J, Poniatowska, K, Porter, J, Posik, M, Poskanzer, AM, Pruthi, NK, Przybycien, M, Putschke, J, Qiu, H, Quintero, A, Ramachandran, S, Ray, RL, Reed, R, Rehbein, MJ, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Roth, JD, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PM, Salur, S, Sandweiss, J, Saur, M, Schambach, J, Schmah, AM, Schmidke, WB, Schmitz, N, Schweid, BR, Seger, J, Sergeeva, M, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Sharma, A, Sharma, MK, Shen, WQ, Shi, Z, Shi, SS, Shou, QY, Sichtermann, EP, Sikora, R, Simko, M, Singha, S, Skoby, MJ, Smirnov, N, Smirnov, D, Solyst, W, Song, L, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Strikhanov, M, Stringfellow, B, Sugiura, T, Sumbera, M, Summa, B, Sun, Y, Sun, XM, Sun, X, Surrow, B, Svirida, DN, Tang, AH, Tang, Z, Taranenko, A, Tarnowsky, T, Tawfik, A, Thader, J, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Trzeciak, BA, Tsai, OD, Ullrich, T, Underwood, DG, Upsal, I, Van Buren, G, van Nieuwenhuizen, G, Vasiliev, AN, Videbaek, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, G, Wang, Y, Wang, F, Webb, JC, Webb, G, Wen, L, Westfall, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, W, Xie, G, Xu, J, Xu, N, Xu, QH, Xu, YF, Xu, Z, Yang, Y, Yang, Q, Yang, C, Yang, S, Ye, Z, Yi, L, Yip, K, Yoo, I-K, Yu, N, Zbroszczyk, H, Zha, W, Zhang, Z, Zhang, XP, Zhang, JB, Zhang, S, Zhang, J, Zhang, Y, Zhao, J, Zhong, C, Zhou, L, Zhou, C, Zhu, X, Zhu, Z, Zyzak, M, and Collaboration, STAR
Published: 2017
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11. Measurement of the cross section and longitudinal double-spin asymmetry for dijet production in polarized pp collisions at root s=200 GeV

Author: Adamczyk, L, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Ajitanand, NN, Alekseev, I, Anderson, DM, Aoyama, R, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Attri, A, Averichev, GS, Bai, X, Bairathi, V, Barish, K, Behera, A, Bellwied, R, Bhasin, A, Bhati, AK, Bhattarai, P, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Bouchet, J, Brandenburg, JD, Brandin, AV, Brown, D, Bunzarov, I, Butterworth, J, Caines, H, Sanchez, MCDLB, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, Z, Chankova-Bunzarova, N, Chatterjee, A, Chattopadhyay, S, Chen, X, Chen, JH, Cheng, J, Cherney, M, Christie, W, Contin, G, Crawford, HJ, Das, S, De Silva, LC, Debbe, RR, Dedovich, TG, Deng, J, Derevschikov, AA, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Draper, JE, Dunkelberger, LE, Dunlop, JC, Efimov, LG, Elsey, N, Engelage, J, Eppley, G, Esha, R, Esumi, S, Evdokimov, O, Ewigleben, J, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Federicova, P, Fedorisin, J, Feng, Z, Filip, P, Finch, E, Fisyak, Y, Flores, CE, Fujita, J, Fulek, L, Gagliardi, CA, Garand, D, Geurts, F, Gibson, A, Girard, M, Grosnick, D, Gunarathne, DS, Guo, Y, Gupta, S, Gupta, A, Guryn, W, Hamad, AI, Hamed, A, Harlenderova, A, Harris, JW, He, L, Heppelmann, S, Hirsch, A, Hoffmann, GW, Horvat, S, Huang, T, Huang, B, Huang, HZ, Huang, X, Humanic, TJ, Huo, P, Igo, G, Jacobs, WW, Jentsch, A, Jia, J, Jiang, K, Jowzaee, S, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kapukchyan, D, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Khan, Z, Kikola, DP, Kim, C, Kisel, I, Kisiel, A, Kochenda, L, Kocmanek, M, Kollegger, T, Kosarzewski, LK, Kraishan, AF, Krauth, L, Kravtsov, P, Krueger, K, Kulathunga, N, Kumar, L, Kvapil, J, Kwasizur, JH, Lacey, R, Landgraf, JM, Landry, KD, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Li, W, Li, C, Li, Y, Li, X, Lidrych, J, Lin, T, Lisa, MA, Liu, H, Liu, F, Liu, Y, Liu, P, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, X, Luo, S, Ma, R, Ma, GL, Ma, L, Ma, YG, Magdy, N, Majka, R, Mallick, D, Margetis, S, Markert, C, Matis, HS, Meehan, K, Mei, JC, Miller, ZW, Minaev, NG, Mioduszewski, S, Mishra, D, Mizuno, S, Mohanty, B, Mondal, MM, Morozov, DA, Mustafa, MK, Nasim, M, Nayak, TK, Nelson, JM, Nie, M, Nigmatkulov, G, Niida, T, Nogach, LV, Nonaka, T, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Okorokov, VA, Jr, OD, Page, BS, Pak, R, Pandit, Y, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pile, P, Pluta, J, Poniatowska, K, Porter, J, Posik, M, Pruthi, NK, Przybycien, M, Putschke, J, Qiu, H, Quintero, A, Ramachandran, S, Ray, RL, Reed, R, Rehbein, MJ, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Roth, JD, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PK, Salur, S, Sandweiss, J, Saur, M, Schambach, J, Schmah, AM, Schmidke, WB, Schmitz, N, Schweid, BR, Seger, J, Sergeeva, M, Seto, R, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Sharma, A, Sharma, MK, Shen, WQ, Shi, SS, Shi, Z, Shou, QY, Sichtermann, EP, Sikora, R, Simko, M, Singha, S, Skoby, MJ, Smirnov, N, Smirnov, D, Solyst, W, Song, L, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Strikhanov, M, Stringfellow, B, Sugiura, T, Sumbera, M, Summa, B, Sun, X, Sun, XM, Sun, Y, Surrow, B, Svirida, DN, Tang, AH, Tang, Z, Taranenko, A, Tarnowsky, T, Tawfik, A, Thader, J, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Trzeciak, BA, Tsai, OD, Ullrich, T, Underwood, DG, Upsal, I, Van Buren, G, van Nieuwenhuizen, G, Vasiliev, AN, Videbaek, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, G, Wang, Y, Wang, F, Webb, G, Webb, JC, Wen, L, Westfall, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, W, Xie, G, Xu, YF, Xu, QH, Xu, N, Xu, Z, Xu, J, Yang, Y, Yang, S, Yang, C, Yang, Q, Ye, Z, Yi, L, Yip, K, Yoo, I-K, Yu, N, Zbroszczyk, H, Zha, W, Zhang, S, Zhang, JB, Zhang, Y, Zhang, J, Zhang, XP, Zhang, Z, Zhao, J, Zhong, C, Zhou, C, Zhou, L, Zhu, Z, Zhu, X, and Zyzak, M
Published: 2017
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12. STAR Results from Au plus Au Fixed-Target Collisions at root(NN)-N-S=4.5 GeV

Author: MEEHAN, K, ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, ASHRAF, MU, ATTRI, A, AVERICHEV, GS, BAI, X, BAIRATHI, V, BIELCIKOVA, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, JD, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCDL, CAMPBELL, JM, CEBRA, D, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTERJEE, A, CHATTOPADHYAY, S, CHEN, X, CHEN, JH, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, AI, HAMED, A, HAGUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HORVAT, S, HUANG, T, HUANG, B, HUANG, X, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JENTSCH, A, JIA, J, JIANG, K, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, X, LI, Y, LI, C, LI, W, LIN, T, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, LUO, S, MA, GL, MA, L, ME, YG, MA, R, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MATIS, HS, MCDONALD, D, MCKINZIE, S, MEI, JC, MILLER, ZW, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, VA, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLUTA, J, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RAY, RL, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, RUSNAKOVA, ., SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, A, SHARMA, B, SHARMA, MK, SHEN, WQ, SHI, Z, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLYST, W, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, Y, SUN, Z, SUN, XM, SURROW, B, SVIRIDA, DN, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, A, THADER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TODOROKI, T, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSA, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, H, WANG, F, WANG, Y, WANG, JS, WANG, G, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIAO, ZG, XIE, W, XIE, G, XIN, K, XU, N, XU, QH, XU, Z, XU, J, XU, H, XU, YF, YANG, S, YANG, Y, YANG, C, YANG, Q, YE, Z, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, Z, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, J, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Star, Fixed-Target, Flow, Hbt, Rapidity Density, Strangeness, Spectra, Dynamical Fluctuations
Abstract: We present results from STAR's first dedicated fixed-target run conducted in 2015 with Au + Au collisions at root SNN = 4.5 GeV. Directed flow of protons and lambdas, elliptic flow of identified hadrons, HBT radii, as well as pion, Ks, and Lambda spectra are compared with previous results from the AGS. These results demonstrate that STAR has good event reconstruction and particle identification capabilities in the fixed-target configuration. The implications of these results on future STAR fixed-target runs are discussed.
Published: 2017
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13. Towards Measurements of Chiral Effects Using Identified Particles from STAR

Author: Wen, L, Adamczyk, L, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Alekseev, I, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Attri, A, Averichev, GS, Bai, X, Bairathi, V, Bellwied, R, Bhasin, A, Bhati, AK, Bhattarai, P, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Bouchet, J, Brandenburg, JD, Brandin, AV, Bunzarov, I, Butterworth, J, Caines, H, Sanchez, MCDLB, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, Z, Chatterjee, A, Chattopadhyay, S, Chen, X, Chen, JH, Cheng, J, Cherney, M, Christie, W, Contin, G, Crawford, HJ, Das, S, De Silva, LC, Debbe, RR, Dedovich, TG, Deng, J, Derevschikov, AA, di Ruzza, B, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Draper, JE, Du, CM, Dunkelberger, LE, Dunlop, JC, Efimov, LG, Engelage, J, Eppley, G, Esha, R, Evdokimov, O, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Fedorisin, J, Feng, Z, Filip, P, Fisyak, Y, Flores, CE, Fulek, L, Gagliardi, CA, Garand, D, Geurts, F, Gibson, A, Girard, M, Greiner, L, Grosnick, D, Gunarathne, DS, Guo, Y, Gupta, S, Gupta, A, Guryn, W, Hamad, AI, Hamed, A, Haqgue, R, Harris, JW, He, L, Heppelmann, S, Hirsch, A, Hoffmann, GW, Horvat, S, Huang, T, Huang, B, Huang, X, Huang, HZ, Huck, P, Humanic, TJ, Igo, G, Jacobs, WW, Jang, H, Jentsch, A, Jia, J, Jiang, K, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Khan, ZH, Kikola, DP, Kisel, I, Kisiel, A, Kochenda, L, Koetke, DD, Kosarzewski, LK, Kraishan, AF, Kravtsov, P, Krueger, K, Kumar, L, Lamont, MAC, Landgraf, JM, Landry, KD, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Li, X, Li, Y, Li, C, Li, W, Lin, T, Lisa, MA, Liu, F, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, X, Luo, S, Ma, GL, Ma, L, Ma, YG, Ma, R, Magdy, N, Majka, R, Manion, A, Margetis, S, Markert, C, Matis, HS, McDonald, D, McKinzie, S, Meehan, K, Mei, JC, Miller, ZW, Minaev, NG, Mioduszewski, S, Mishra, D, Mohanty, B, Mondal, MM, Morozov, DA, Mustafa, MK, Nandi, BK, Nasim, M, Nayak, TK, Nigmatkulov, G, Niida, T, Nogach, LV, Noh, SY, Novak, J, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Okorokov, VA, Jr, OD, Page, BS, Pak, R, Pan, YX, Pandit, Y, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pile, P, Pluta, J, Poniatowska, K, Porter, J, Posik, M, Poskanzer, AM, Pruthi, NK, Przybycien, M, Putschke, J, Qiu, H, Quintero, A, Ramachandran, S, Ray, RL, Reed, R, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PK, Sakrejda, I, Salur, S, Sandweiss, J, Sarkar, A, Schambach, J, Scharenberg, RP, Schmah, AM, Schmidke, WB, Schmitz, N, Seger, J, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Sharma, A, Sharma, B, Sharma, MK, Shen, WQ, Shi, Z, Shi, SS, Shou, QY, Sichtermann, EP, Sikora, R, Simko, M, Singha, S, Skoby, MJ, Smirnov, D, Smirnov, N, Solyst, W, Song, L, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Stepanov, M, Stock, R, Strikhanov, M, Stringfellow, B, Sumbera, M, Summa, B, Sun, Y, Sun, Z, Sun, XM, Surrow, B, Svirida, DN, Tang, Z, Tang, AH, Tarnowsky, T, Tawfik, A, Thadler, J, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Tsai, OD, Ullrich, T, Underwood, DG, Upsal, I, Van Buren, G, Van Nieuwenhuizen, G, Vandenbroucke, M, Varma, R, Vasiliev, AN, Vertesi, R, Videbaek, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, H, Wang, F, Wang, Y, Wang, JS, Wang, G, Webb, JC, Webb, G, Westfall, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, W, Xie, G, Xin, K, Xu, N, Xu, QH, Xu, Z, Xu, J, Xu, H, Xu, YF, Yang, S, Yang, Y, Yang, C, Yang, Q, Ye, Z, Yi, L, Yip, K, Yoo, I-K, Yu, N, Zbroszczyk, H, Zha, W, Zhang, Z, Zhang, JB, Zhang, S, Zhang, XP, Zhang, Y, Zhang, J, Zhao, J, Zhong, C, Zhou, L, Zhu, X, Zoulkarneeva, Y, Zyzak, M, and Collaboration, STAR
Subjects: Physics, Nuclear and High Energy Physics, Time projection chamber, Chiral Magnetic Wave, 010308 nuclear & particles physics, Plane (geometry), Hadron, Gamma Correlation, Small systems, Star (graph theory), 01 natural sciences, Nuclear physics, 0103 physical sciences, gamma correlation, Particle, High Energy Physics::Experiment, Collisions, k(K) parameter, Chiral Magnetic Effect, Magnetic effect, Nuclear Experiment, 010306 general physics, Event (particle physics), K(K) Parameter
Abstract: We report recent STAR results on searching for the Chiral Magnetic Effect via measurements of γ correlation and κ K parameter for charged hadrons and identified particle pairs ( ππ , pK , πK , pp , pπ ) in Au+Au collisions at 200 GeV. We compare the κ K parameters with expectations from the AMPT simulations. Sizable γ correlations for charged hadrons, using Time Projection Chamber event plane, in p+Au and d+Au 200 GeV have been observed, and the correlations in these small systems are reduced to near zero when the event planes from forward detectors are used. We will also present our results on the Chiral Magnetic Wave searches from p+Au collisions at 200 GeV.
Published: 2017
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14. Charge-Dependent Directed Flow in Cu plus Au Collisions at root S-NN=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ANDERSON, DM, AOYAMA, R, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, ASHRAF, MU, ATTRI, A, AVERICHEV, GS, BAI, X, BAIRATHI, V, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, JD, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCDLB, CAMPBELL, JM, CEBRA, D, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTERJEE, A, CHATTOPADHYAY, S, CHEN, X, CHEN, JH, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, ESUMI, S, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FINCH, E, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, AI, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HORVAT, S, HUANG, B, HUANG, X, HUANG, HZ, HUANG, T, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JENTSCH, A, JIA, J, JIANG, K, JOWZAEE, S, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, Y, LI, C, LI, W, LI, X, LIN, T, LISA, MA, LIU, Y, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, LUO, S, MA, GL, MA, R, MA, YG, MA, L, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MATIS, HS, MCDONALD, D, MCKINZIE, S, MEEHAN, K, MEI, JC, MILLER, ZW, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NONAKA, T, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, VA, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLUTA, J, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RAY, RL, REED, R, REHBEIN, MJ, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROTH, JD, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, A, SHARMA, MK, SHARMA, B, SHEN, WQ, SHI, SS, SHI, Z, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLYST, W, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUGIURA, T, SUMBERA, M, SUMMA, B, SUN, Z, SUN, Y, SUN, XM, SURROW, B, SVIRIDA, DN, TANG, AH, TANG, Z, TARNOWSKY, T, TAWFIK, A, THADER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TODOROKI, T, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, G, WANG, F, WANG, JS, WANG, Y, WANG, H, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIAO, ZG, XIE, W, XIE, G, XIN, K, XU, QH, XU, YF, XU, H, XU, Z, XU, N, XU, J, YANG, C, YANG, Y, YANG, S, YANG, Q, YE, Z, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, J, ZHANG, XP, ZHANG, S, ZHANG, Y, ZHANG, JB, ZHANG, Z, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Momentum, Quark-Gluon Plasma, Heavy-Ion Collisions, Collaboration, Qcd, Energy Nuclear Collisions
Abstract: We present the first measurement of charge-dependent directed flow in Cu + Au collisions at root S-NN = 200 GeV. The results are presented as a function of the particle transverse momentum and pseudorapidity for different centralities. A finite difference between the directed flow of positive and negative charged particles is observed that qualitatively agrees with the expectations from the effects of the initial strong electric field between two colliding ions with different nuclear charges. The measured difference in directed flow is much smaller than that obtained from the parton-hadron-string-dynamics model, which suggests that most of the electric charges, i.e., quarks and antiquarks, have not yet been created during the lifetime of the strong electric field, which is of the order of, or less than, 1 fm/c.
Published: 2017

15. Disentangling flow and signals of Chiral Magnetic Effect in U plus U, Au plus Au and p plus Au collisions

Author: TRIBEDY, P, ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, ASHRAF, MU, ATTRI, A, AVERICHEV, GS, BAI, X, BAIRATHI, V, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, JD, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTERJEE, A, CHATTOPADHYAY, S, CHEN, X, CHEN, JH, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, AI, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HORVAT, S, HUANG, T, HUANG, B, HUANG, X, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JENTSCH, A, JIA, J, JIANG, K, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, X, LI, Y, LI, C, LI, W, LIN, T, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, LUO, S, MA, GL, MA, L, MA, YG, MA, R, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MATIS, HS, MCDONALD, D, MCKINZIE, S, MEEHAN, K, MEI, JC, MILLER, ZW, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, VA, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLUTA, J, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RAY, RL, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, A, SHARMA, B, SHARMA, MK, SHEN, WQ, SHI, Z, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLYST, W, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, Y, SUN, Z, SUN, XM, SURROW, B, SVIRIDA, DN, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, A, THALER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TODOROKI, T, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIPATHY, SK, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSA, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, H, WANG, F, WANG, Y, WANG, JS, WANG, G, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIAO, ZG, XIE, W, XIE, G, XIN, K, XU, N, XU, QH, XU, Z, XU, J, XU, H, XU, YF, YANG, S, YANG, Y, YANG, C, YANG, Q, YE, Z, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, Z, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, J, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Parity Violation, Cme, A Plus A And P Plus A Collisions, Heavy-Ion Collisions, Hot Qcd, Three-Particle Correlations
Abstract: We present STAR measurements of the charge-dependent three-particle correlator gamma(a,b) = < cos(phi(a)(1) + phi(b)(2)-2 phi(3))>/v(2){2} and elliptic flow v(2){2} in U+U, Au+Au and p+Au collisions at RHIC. The difference Delta gamma = gamma(opposite sign)-gamma(same sign) measures charge separation across the reaction plane, a predicted signal of the Chiral Magnetic Effect (CME). Although charge separation has been observed, it has been argued that the measured separation can also be explained by elliptic flow related backgrounds. In order to separate the two effects we perform measurements of the gamma-correlator where background expectations differ from magnetic field driven effects. A differential measurement of gamma with the relative pseudorapidity (Delta eta)) between the first and second particles indicate that Delta gamma in peripheral A+A and p+A collisions are dominated by short-range correlations in A. However, a relatively wider component of the correlation in Delta eta tends to vanish the same way as projected magnetic field as predicted by MC-Glauber simulations.
Published: 2017
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16. Near-side azimuthal and pseudorapidity correlations using neutral strange baryons and mesons in d plus Au, Cu plus Cu, and Au plus Au collisions at root S-NN=200 GeV

Author: ABELEV, B, ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, ASHRAF, MU, ATTRI, A, AVERICHEV, GS, BAI, X, BAIRATHI, V, BARNBY, LS, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BOMBARA, M, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, JD, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTERJEE, A, CHATTOPADHYAY, S, CHEN, JH, CHEN, X, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GAILLARD, L, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAMAD, AI, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HORVAT, S, HUANG, T, HUANG, B, HUANG, X, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JENTSCH, A, JIA, J, JIANG, K, JONES, PG, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, C, LI, Y, LI, W, LI, X, LIN, T, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, S, LUO, X, MA, L, MA, R, MA, GL, MA, YG, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MATIS, HS, MCDONALD, D, MCKINZIE, S, MEEHAN, K, MEI, JC, MILLER, ZW, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NATTRASS, C, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, VA, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLUTA, J, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RAY, RL, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHARMA, A, SHARMA, MK, SHEN, WQ, SHI, Z, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, N, SMIRNOV, D, SOLYST, W, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, Y, SUN, Z, SUN, XM, SURROW, B, SVIRIDA, DN, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, A, THADER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TODOROKI, T, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, H, WANG, Y, WANG, G, WANG, JS, WANG, F, WEBB, G, WEBB, JC, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIAO, ZG, XIE, W, XIE, G, XIN, K, XU, YF, XU, QH, XU, N, XU, J, XU, H, XU, Z, YANG, Y, YANG, Q, YANG, S, YANG, C, YE, Z, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, JB, ZHANG, J, ZHANG, Z, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Root-S(Nn)=2.76 Tev, Suppression, Particle-Production, Energy, Alice, Proton-Proton Collisions, Detector, Dependence, Pbpb Collisions, Transverse-Momentum
Abstract: We present measurements of the near side of triggered di-hadron correlations using neutral strange baryons ( A, (A) over bar) and mesons (K-s(0)) at intermediate transverse momentum ( 3 < p(T) < 6 GeV/c) to look for possible flavor and baryon-meson dependence. This study is performed in d+Au, Cu+Cu, and Au+Au collisions at root S-NN = 200 GeV measured by the STAR experiment at RHIC. The near-side di-hadron correlation contains two structures, a peak which is narrow in azimuth and pseudorapidity consistent with correlations from jet fragmentation, and a correlation in azimuth which is broad in pseudorapidity. The particle composition of the jet-like correlation is determined using identified associated particles. The dependence of the conditional yield of the jet-like correlation on the trigger particle momentum, associated particle momentum, and centrality for correlations with unidentified trigger particles are presented. The neutral strange particle composition in jet-like correlations with unidentified charged particle triggers is not well described by PYTHIA. However, the yield of unidentified particles in jet-like correlations with neutral strange particle triggers is described reasonably well by the same model.
Published: 2016
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17. Probing parton dynamics of QCD matter with Omega and phi production

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, ATTRI, A, AVERICHEV, GS, BAI, X, BAIRATHI, V, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, JD, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTERJEE, A, CHATTOPADHYAY, S, CHEN, JH, CHEN, X, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, AI, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HORVAT, S, HUANG, T, HUANG, X, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JENTSCH, A, JIA, J, JIANG, K, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, X, LI, C, LI, Y, LI, W, LIN, T, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, R, MA, GL, MA, YG, MA, L, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MATIS, HS, MCDONALD, D, MCKINZIE, S, MEEHAN, K, MEI, JC, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, VA, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLUTA, J, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, S, RANIWALA, R, RAY, RL, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, A, SHARMA, B, SHARMA, MK, SHEN, WQ, SHI, Z, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, N, SMIRNOV, D, SOLYST, W, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, Z, SUN, XM, SUN, Y, SURROW, B, SVIRIDA, DN, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, A, THADER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TODOROKI, T, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, F, WANG, G, WANG, JS, WANG, H, WANG, Y, WEBB, G, WEBB, JC, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIAO, ZG, XIE, W, XIE, G, XIN, K, XU, YF, XU, QH, XU, N, XU, H, XU, Z, XU, J, YANG, S, YANG, Y, YANG, C, YANG, Q, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, XP, ZHANG, Y, ZHANG, J, ZHANG, S, ZHANG, Z, ZHANG, JB, ZHAO, F, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Energy, Nuclear Theory, Quark-Gluon Plasma, Strangeness, Au, High Energy Physics::Experiment, Collisions, Meson Production, Freeze-Out, Nuclear Experiment, Dependence
Abstract: We present measurements of $\Omega$ and $\phi$ production at mid-rapidity from Au+Au collisions at nucleon-nucleon center-of-mass energies $\sqrt{s_{NN}}$ = 7.7, 11.5, 19.6, 27 and 39 GeV by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). Motivated by the coalescence formation mechanism for these strange hadrons, we study the ratios of $N(\Omega^{-}+\Omega^{+})/(2N(\phi))$. These ratios as a function of transverse momentum ($p_T$) fall on a consistent trend at high collision energies, but start to show deviations in peripheral collisions at $\sqrt{s_{NN}}$ = 19.6, 27 and 39 GeV, and in central collisions at 11.5 GeV in the intermediate $p_T$ region of 2.4-3.6 GeV/c. We further evaluate empirically the strange quark $p_T$ distributions at hadronization by studying the $\Omega/\phi$ ratios scaled by the number of constituent quarks. The NCQ-scaled $\Omega/\phi$ ratios show a suppression of strange quark production in central collisions at 11.5 GeV compared to $\sqrt{s_{NN}} >= 19.6$ GeV. The shapes of the presumably thermal strange quark distributions in 0-60% most central collisions at 7.7 GeV show significant deviations from those in 0-10% most central collisions at higher energies. These features suggest that there is likely a change of the underlying strange quark dynamics in the transition from quark-matter to hadronic matter at collision energies below 19.6 GeV., Comment: 7 pages, 5 figures
Published: 2016

18. Jet-like correlations with direct-photon and neutral-pion triggers at root S-NN=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ANDERSON, DM, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, ASHRAF, MU, ATTRI, A, AVERICHEV, GS, BAI, X, BAIRATHI, V, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, R, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, JD, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CHAKABERIA, I, CHALOUPKA, R, CHANG, Z, CHATTERJEE, A, CHATTOPADHYAY, S, CHEN, X, CHEN, JH, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, AI, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HORVAT, S, HUANG, T, HUANG, B, HUANG, X, HUANG, HZ, HUCK, R, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JENTSCH, A, JIA, J, JIANG, K, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KANDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURAT, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, X, LI, Y, LI, C, LI, W, LIN, T, LISA, MA, LIU, F, LIU, Y, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, LUO, S, MA, GL, MA, L, MA, YG, MA, R, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MATIS, HS, MCDONALD, D, MCKINZIE, S, MEEHAN, K, MEI, JC, MILLER, ZW, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, VA, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLUTA, J, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RAY, RL, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, RUSNAKOVAI, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, A, SHARMA, B, SHARMA, MK, SHEN, WQ, SHI, Z, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLYST, W, SONG, L, SORENSEN, R, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, Y, SUN, Z, SUN, XM, SURROW, B, SVIRIDA, DN, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, A, THADER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TODOROKI, T, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, H, WANG, F, WANG, Y, WANG, JS, WANG, G, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIAO, ZG, XIE, W, XIE, G, XIN, K, XU, N, XU, QH, XU, Z, XU, J, XU, H, XU, YF, YANG, S, YANG, Y, YANG, C, YANG, Q, YE, Z, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, Z, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, J, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Perspective, Quark-Gluon Plasma, Collisions, Collaboration
Abstract: Azimuthal correlations of charged hadrons with direct-photon (gamma(dir)) and neutral-pion (pi(0)) trigger particles are analyzed in central Au+Au and minimum-bias p + p collisions at root S-NN = 200 GeV in the STAR experiment. The charged-hadron per-trigger yields at mid-rapidity from central Au+Au collisions are compared with p + p collisions to quantify the suppression in Au+Au collisions. The suppression of the away-side associated-particle yields per gamma(dir) trigger is independent of the transverse momentum of the trigger particle (p(T)(trig)), whereas the suppression is smaller at low transverse momentum of the associated charged hadrons (p(T)(assoc)). Within uncertainty, similar levels of suppression are observed for gamma(dir) and pi(0) triggers as a function of z(T) (equivalent to p(T)(assoc)/p(T)(tri)). The results are compared with energy-loss-inspired theoretical model predictions. Our studies support previous conclusions that the lost energy reappears predominantly at low transverse momentum, regardless of the trigger energy. (C) 2016 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license.
Published: 2016

19. Upsilon production in U plus U collisions at root s(NN)=193 GeV measured with the STAR experiment

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ANDERSON, DM, AOYAMA, R, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, ASHRAF, MU, ATTRI, A, AVERICHEV, GS, BAI, X, BAIRATHI, V, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, JD, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTERJEE, A, CHATTOPADHYAY, S, CHEN, JH, CHEN, X, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, ESUMI, S, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FINCH, E, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAMAD, AI, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HORVAT, S, HUANG, HZ, HUANG, B, HUANG, T, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JENTSCH, A, JIA, J, JIANG, K, JOWZAEE, S, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, Z, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LANDRY, D, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, Y, LI, C, LI, X, LI, W, LIN, T, LISA, MA, LIU, F, LIU, Y, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, LUO, S, MA, GL, MA, R, MA, L, MA, YG, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MATIS, HS, MCDONALD, D, MCKINZIE, S, MEEHAN, K, MEI, C, MILLER, ZW, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NONAKA, T, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, VA, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLUTA, J, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RAY, RL, REED, R, REHBEIN, MJ, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROTH, JD, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, MK, SHARMA, A, SHARMA, B, SHEN, WQ, SHI, Z, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLYST, W, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUGIURA, T, SUMBERA, M, SUMMA, B, SUN, Y, SUN, Z, SUN, XM, SURROW, B, SVIRIDA, DN, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, A, THADER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TODOROKI, T, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, G, WANG, JS, WANG, F, WANG, Y, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIAO, ZG, XIE, G, XIE, W, XIN, K, XU, Z, XU, H, XU, N, XU, J, XU, YF, XU, QH, YANG, Y, YANG, S, YANG, Q, YANG, C, YE, Z, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, J, ZHANG, Z, ZHANG, S, ZHANG, XP, ZHANG, JB, ZHANG, Y, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Suppression, Plasma, Au Collisions, Charmonium, Energy Nuclear Collisions, Dissociation
Abstract: We present a measurement of the inclusive production of. mesons in U + U collisions at root s(NN) = 193 GeV at midrapidity (vertical bar y vertical bar < 1). Previous studies in central Au+Au collisions at root s(NN) = 200 GeV show a suppression of Upsilon (1S+2S+3S) production relative to expectations from the Upsilon yield in p+p collisions scaled by the number of binary nucleon-nucleon collisions (N-coll), with an indication that the.(1S) state is also suppressed. The present measurement extends the number of participant nucleons in the collision (N-part) by 20% compared to Au+Au collisions, and allows us to study a system with higher energy density. We observe a suppression in both the Upsilon (1S+2S+3S) and Upsilon (1S) yields in central U+U data, which consolidates and extends the previously observed suppression trend in Au+Au collisions.
Published: 2016
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20. Centrality and Transverse Momentum Dependence of Elliptic Flow of Multistrange Hadrons and phi Meson in Au plus Au Collisions at root S NN=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BAIRATHI, V, BANERJEE, A, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CERVANTES, MC, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, JH, CHEN, X, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, A, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, X, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JIANG, K, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOLLEGGER, T, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, ZM, LI, W, LI, X, LI, C, LI, Y, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, YG, MA, GL, MA, L, MA, R, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MEEHAN, K, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, V, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PETERSON, A, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHARMA, MK, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, N, SZELEZNIAK, MA, TANG, AH, TANG, Z, TARNOWSKY, T, TAWFIK, A, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, Y, WANG, G, WANG, JS, WANG, H, WANG, F, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, WU, Y, XIAO, ZG, XIE, W, XIN, K, XU, N, XU, Z, XU, QH, XU, YF, XU, H, YANG, Q, YANG, Y, YANG, S, YANG, C, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, Z, ZHANG, Y, ZHANG, JB, ZHANG, J, ZHANG, S, ZHANG, XP, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Quark-Gluon Plasma, Anisotropy, Nuclear Collisions
Abstract: We present high precision measurements of elliptic flow near midrapidity (vertical bar y vertical bar < 1.0) for multistrange hadrons and phi meson as a function of centrality and transverse momentum in Au + Au collisions at center of mass energy root S (NN) = 200 GeV. We observe that the transverse momentum dependence of phi and Omega v(2) is similar to that of pi and p, respectively, which may indicate that the heavier strange quark flows as strongly as the lighter up and down quarks. This observation constitutes a clear piece of evidence for the development of partonic collectivity in heavy-ion collisions at the top RHIC energy. Number of constituent quark scaling is found to hold within statistical uncertainty for both 0%-30% and 30%-80% collision centrality. There is an indication of the breakdown of previously observed mass ordering between phi and proton v(2) at low transverse momentum in the 0%-30% centrality range, possibly indicating late hadronic interactions affecting the proton v(2).
Published: 2016

21. J/psi production at low transverse momentum in p plus p and d plus Au collisions at root s(NN)=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, ATTRI, A, AVERICHEV, GS, BAI, X, BAIRATHI, V, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, JD, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTERJEE, A, CHATTOPADHYAY, S, CHEN, JH, CHEN, X, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, AI, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HORVAT, S, HUANG, T, HUANG, X, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JENTSCH, A, JIA, J, JIANG, K, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, X, LI, C, LI, Y, LI, W, LIN, T, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, R, MA, GL, MA, YG, MA, L, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MATIS, HS, MCDONALD, D, MCKINZIE, S, MEEHAN, K, MEI, JC, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, VA, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLUTA, J, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, POWELL, CB, PRUTHI, NK, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, S, RANIWALA, R, RAY, RL, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, A, SHARMA, B, SHARMA, MK, SHEN, WQ, SHI, Z, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, N, SMIRNOV, D, SOLYST, W, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, Z, SUN, XM, SUN, Y, SURROW, B, SVIRIDA, DN, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, A, THADER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TODOROKI, T, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, F, WANG, G, WANG, JS, WANG, H, WANG, Y, WEBB, G, WEBB, JC, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIAO, ZG, XIE, W, XIE, G, XIN, K, XU, YF, XU, QH, XU, N, XU, H, XU, Z, XU, J, YANG, S, YANG, Y, YANG, C, YANG, Q, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, XP, ZHANG, Y, ZHANG, J, ZHANG, S, ZHANG, Z, ZHANG, JB, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Suppression, Star, Perspective, Quark-Gluon Plasma, Proton, Collaboration, Nuclear-Matter
Abstract: We report on the measurement of J/psi production in the dielectron channel at midrapidity (vertical bar y vertical bar < 1) in p + p and d + Au collisions at root s(NN) = 200 GeV from the STAR experiment at the Relativistic Heavy Ion Collider. The transverse momentum p(T) spectra in p + p for pT < 4 GeV/c and d + Au collisions for p(T) < 3 GeV/c are presented. These measurements extend the STAR coverage for J/psi production in p + p collisions to low p(T). The < p(T)(2)> from the measured J/psi invariant cross section in p + p and d + Au collisions are evaluated and compared to similar measurements at other collision energies. The nuclear modification factor for J/psi is extracted as a function of pT and collision centrality in d + Au and compared to model calculations using the modified nuclear parton distribution function and a final-state J/psi nuclear absorption cross section.
Published: 2016
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22. Measurement of elliptic flow of light nuclei at $\sqrt{s_{NN}}$ = 200, 62.4, 39, 27, 19.6, 11.5, and 7.7 GeV at RHIC

Author: Collaboration, STAR, Adamczyk, L, Adkins, JK, Agakishiev, G, Aggarwal, MM, Ahammed, Z, Alekseev, I, Aparin, A, Arkhipkin, D, Aschenauer, EC, Ashraf, MU, Attri, A, Averichev, GS, Bai, X, Bairathi, V, Bellwied, R, Bhasin, A, Bhati, AK, Bhattarai, P, Bielcik, J, Bielcikova, J, Bland, LC, Bordyuzhin, IG, Bouchet, J, Brandenburg, JD, Brandin, AV, Bunzarov, I, Butterworth, J, Caines, H, Sánchez, MCDLB, Campbell, JM, Cebra, D, Chakaberia, I, Chaloupka, P, Chang, Z, Chatterjee, A, Chattopadhyay, S, Chen, X, Chen, JH, Cheng, J, Cherney, M, Christie, W, Contin, G, Crawford, HJ, Das, S, Silva, LCD, Debbe, RR, Dedovich, TG, Deng, J, Derevschikov, AA, Ruzza, BD, Didenko, L, Dilks, C, Dong, X, Drachenberg, JL, Draper, JE, Du, CM, Dunkelberger, LE, Dunlop, JC, Efimov, LG, Engelage, J, Eppley, G, Esha, R, Evdokimov, O, Eyser, O, Fatemi, R, Fazio, S, Federic, P, Fedorisin, J, Feng, Z, Filip, P, Fisyak, Y, Flores, CE, Fulek, L, Gagliardi, CA, Garand, D, Geurts, F, Gibson, A, Girard, M, Greiner, L, Grosnick, D, Gunarathne, DS, Guo, Y, Gupta, S, Gupta, A, Guryn, W, Hamad, AI, Hamed, A, Haque, R, Harris, JW, He, L, Heppelmann, S, Hirsch, A, Hoffmann, GW, Horvat, S, Huang, T, Huang, HZ, Huang, X, Huang, B, Huck, P, Humanic, TJ, Igo, G, Jacobs, WW, Jang, H, Jentsch, A, Jia, J, Jiang, K, Judd, EG, Kabana, S, Kalinkin, D, Kang, K, Kauder, K, Ke, HW, Keane, D, Kechechyan, A, Khan, ZH, Kikoła, DP, Kisel, I, Kisiel, A, Kochenda, L, Koetke, DD, Kosarzewski, LK, Kraishan, AF, Kravtsov, P, Krueger, K, Kumar, L, Lamont, MAC, Landgraf, JM, Landry, KD, Lauret, J, Lebedev, A, Lednicky, R, Lee, JH, Li, W, Li, X, Li, C, Li, Y, Lin, T, Lisa, MA, Liu, F, Ljubicic, T, Llope, WJ, Lomnitz, M, Longacre, RS, Luo, X, Ma, GL, Ma, R, Ma, YG, Ma, L, Magdy, N, Majka, R, Manion, A, Margetis, S, Markert, C, Matis, HS, McDonald, D, McKinzie, S, Meehan, K, Mei, JC, Minaev, NG, Mioduszewski, S, Mishra, D, Mohanty, B, Mondal, MM, Morozov, DA, Mustafa, MK, Nandi, BK, Nasim, M, Nayak, TK, Nigmatkulov, G, Niida, T, Nogach, LV, Noh, SY, Novak, J, Nurushev, SB, Odyniec, G, Ogawa, A, Oh, K, Okorokov, VA, Jr, DO, Page, BS, Pak, R, Pan, YX, Pandit, Y, Panebratsev, Y, Pawlik, B, Pei, H, Perkins, C, Pile, P, Pluta, J, Poniatowska, K, Porter, J, Posik, M, Poskanzer, AM, Pruthi, NK, Putschke, J, Qiu, H, Quintero, A, Ramachandran, S, Raniwala, S, Raniwala, R, Ray, RL, Ritter, HG, Roberts, JB, Rogachevskiy, OV, Romero, JL, Ruan, L, Rusnak, J, Rusnakova, O, Sahoo, NR, Sahu, PK, Sakrejda, I, Salur, S, Sandweiss, J, Sarkar, A, Schambach, J, Scharenberg, RP, Schmah, AM, Schmidke, WB, Schmitz, N, Seger, J, Seyboth, P, Shah, N, Shahaliev, E, Shanmuganathan, PV, Shao, M, Sharma, B, Sharma, A, Sharma, MK, Shen, WQ, Shi, Z, Shi, SS, Shou, QY, Sichtermann, EP, Sikora, R, Simko, M, Singha, S, Skoby, MJ, Smirnov, D, Smirnov, N, Solyst, W, Song, L, Sorensen, P, Spinka, HM, Srivastava, B, Stanislaus, TDS, Stepanov, M, Stock, R, Strikhanov, M, Stringfellow, B, Sumbera, M, Summa, B, Sun, Y, Sun, XM, Sun, Z, Surrow, B, Svirida, DN, Tang, Z, Tang, AH, Tarnowsky, T, Tawfik, A, Thäder, J, Thomas, JH, Timmins, AR, Tlusty, D, Todoroki, T, Tokarev, M, Trentalange, S, Tribble, RE, Tribedy, P, Tripathy, SK, Tsai, OD, Ullrich, T, Underwood, DG, Upsal, I, Buren, GV, Nieuwenhuizen, GV, Vandenbroucke, M, Varma, R, Vasiliev, AN, Vertesi, R, Videbæk, F, Vokal, S, Voloshin, SA, Vossen, A, Wang, H, Wang, JS, Wang, Y, Wang, F, Wang, G, Webb, G, Webb, JC, Wen, L, Westfall, GD, Wieman, H, Wissink, SW, Witt, R, Wu, Y, Xiao, ZG, Xie, G, Xie, W, Xin, K, Xu, N, Xu, H, Xu, Z, Xu, YF, Xu, J, Xu, QH, Yang, C, Yang, Y, Yang, S, Yang, Q, Ye, Z, Yepes, P, Yi, L, Yip, K, Yoo, I-K, Yu, N, Zbroszczyk, H, Zha, W, Zhang, JB, Zhang, J, Zhang, Z, Zhang, S, Zhang, Y, Zhang, XP, Zhao, J, Zhong, C, Zhou, L, Zhu, X, Zoulkarneeva, Y, and Zyzak, M
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), hep-ex, FOS: Physical sciences, hep-ph, Nuclear Experiment (nucl-ex), nucl-ex, Nuclear Experiment, High Energy Physics - Experiment
Abstract: We present measurements of 2$^{nd}$ order azimuthal anisotropy ($v_{2}$) at mid-rapidity $(|y, 13 pages and 10 figures
Published: 2016
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23. Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions at root s(NN)=7.7-62.4 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BAI, X, BAIRATHI, V, BANERJEE, A, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, D, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CERVANTES, MC, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, X, CHEN, JH, CHENG, J, CHERNEY, M, CHISMAN, O, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAMAD, A, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, HZ, HUANG, B, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JIANG, K, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOLLEGGER, T, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, X, LI, Y, LI, W, LI, C, LI, ZM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, L, MA, YG, MA, GL, MA, R, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MEEHAN, K, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, V, JR, DO, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PETERSON, A, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, S, RANIWALA, R, RAY, RL, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHARMA, MK, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, N, SMIRNOV, D, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, X, SUN, Z, SUN, Y, SUN, XM, SURROW, B, SVIRIDA, N, SZELEZNIAK, MA, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, A, THAEDER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, F, WANG, Y, WANG, G, WANG, JS, WANG, H, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, WU, Y, XIAO, ZG, XIE, W, XIN, K, XU, Z, XU, H, XU, YF, XU, QH, XU, N, YANG, Y, YANG, C, YANG, S, YANG, Q, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, Y, ZHANG, S, ZHANG, J, ZHANG, Z, ZHANG, XP, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Resonance Decay, Star, Parton, Nuclear Collisions, Model
Abstract: Elliptic flow (v(2)) values for identified particles at midrapidity in Au + Au collisions measured by the STAR experiment in the Beam Energy Scan at the Relativistic Heavy Ion Collider at root s(NN) = 7.7-62.4 GeV are presented for three centrality classes. The centrality dependence and the data at root s(NN) = 14.5 GeV are new. Except at the lowest beam energies, we observe a similar relative v(2) baryon-meson splitting for all centrality classes which is in agreement within 15% with the number-of-constituent quark scaling. The larger v(2) for most particles relative to antiparticles, already observed for minimum bias collisions, shows a clear centrality dependence, with the largest difference for the most central collisions. Also, the results are compared with a multiphase transport (AMPT) model and fit with a blast wave model.
Published: 2016
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24. Measurement of elliptic flow of light nuclei at root s(NN)=200, 62.4, 39, 27, 19.6, 11.5, and 7.7 GeV at the BNL Relativistic Heavy Ion Collider

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, ATTRI, A, AVERICHEV, GS, BAI, X, BAIRATHI, V, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, JD, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTERJEE, A, CHATTOPADHYAY, S, CHEN, JH, CHEN, X, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, AI, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HORVAT, S, HUANG, T, HUANG, X, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JENTSCH, A, JIA, J, JIANG, K, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, X, LI, C, LI, Y, LI, W, LIN, T, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, R, MA, GL, MA, YG, MA, L, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MATIS, HS, MCDONALD, D, MCKINZIE, S, MEEHAN, K, MEI, JC, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, VA, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLUTA, J, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, MK, SHARMA, B, SHEN, WQ, SHI, Z, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, N, SMIRNOV, D, SOLYST, W, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, XM, SUN, Z, SUN, Y, SURROW, B, SVIRIDA, DN, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, A, THADER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TODOROKI, T, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, Y, WANG, G, WANG, JS, WANG, H, WANG, F, WEBB, G, WEBB, JC, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIAO, ZG, XIE, W, XIE, G, XIN, K, XU, H, XU, Z, XU, J, XU, YF, XU, QH, XU, N, YANG, Y, YANG, S, YANG, C, YANG, Q, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, J, ZHANG, Y, ZHANG, XP, ZHANG, Z, ZHANG, JB, ZHANG, S, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Matter, Coalescence Model, Perspective, Quark-Gluon Plasma, Collisions, Deuterons, Detector, Proton, Collaboration, Anisotropic Flow
Abstract: We present measurements of second-order azimuthal anisotropy (v(2)) at midrapidity (vertical bar y vertical bar < 1.0) for light nuclei d, t, He-3 (for root s(NN) = 200, 62.4, 39, 27, 19.6, 11.5, and 7.7 GeV) and antinuclei (root s(NN) = 200, 62.4, 39, 27, and 19.6 GeV) and (3)(He) over bar (root s(NN) = 200 GeV) in the STAR (Solenoidal Tracker at RHIC) experiment. The v(2) for these light nuclei produced in heavy-ion collisions is compared with those for p and (p) over bar. We observe mass ordering in nuclei v(2)(p(T)) at low transverse momenta (p(T) < 2.0 GeV/c). We also find a centrality dependence of v(2) for d and . The magnitude of v(2) for t and He-3 agree within statistical errors. Light-nuclei v(2) are compared with predictions from a blast-wave model. Atomic mass number (A) scaling of light-nuclei v(2)(p(T)) seems to hold for p(T)/A < 1.5 GeV/c. Results on light-nuclei v(2) from a transport-plus-coalescence model are consistent with the experimental measurements.
Published: 2016

25. Measurement of the Transverse Single-Spin Asymmetry in p up arrow plus p -> W-+/-/Z(0) at RHIC

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, ATTRI, A, AVERICHEV, GS, BAI, X, BAIRATHI, V, BANERJEE, A, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDENBURG, JD, BRANDIN, AV, BUNZAROV, I, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, X, CHEN, JH, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAMD, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAMAD, A, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, X, HUANG, HZ, HUANG, B, HUANG, T, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JENTSCH, A, JIA, J, JIANG, K, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, C, LI, Y, LI, W, LI, X, LIN, T, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, R, MA, L, MA, GL, MA, YG, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MCDONALD, D, MEEHAN, K, MEI, JC, MINAEV, NG, MIODUSZEWSKI, S, MISHRA, D, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NIIDA, T, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, VA, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLUTA, J, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, MK, SHARMA, B, SHEN, WQ, SHI, Z, SHI, SS, SHOU, QY, SICHTENNANN, EP, SIKORA, R, SIMKO, M, SINGHA, S, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLYST, W, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, Y, SUN, Z, SUN, XM, SURROW, B, SVIRIDA, DN, TANG, AH, TANG, Z, TARNOWSKY, T, TAWFIK, A, THAEDER, J, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TODOROKI, T, TOKAREV, M, TRENUILANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, JS, WANG, Y, WANG, F, WANG, H, WANG, G, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, Y, XIAO, ZG, XIE, X, XIE, W, XIN, K, XU, N, XU, YF, XU, Z, XU, QH, XU, J, XU, H, YANG, Q, YANG, Y, YANG, S, YANG, C, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, S, ZHANG, Z, ZHANG, JB, ZHANG, Y, ZHANG, J, ZHAN, XP, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Deep-Inelastic Scattering, Root-S=200 Gev, Proton Elastic-Scattering, Drell-Yan, Final-State Interactions
Abstract: We present the measurement of the transverse single-spin asymmetry of weak boson production in transversely polarized proton-proton collisions at root s = 500 GeV by the STAR experiment at RHIC. The measured observable is sensitive to the Sivers function, one of the transverse-momentum-dependent parton distribution functions, which is predicted to have the opposite sign in proton-proton collisions from that observed in deep inelastic lepton-proton scattering. These data provide the first experimental investigation of the nonuniversality of the Sivers function, fundamental to our understanding of QCD.
Published: 2016

26. Precision Measurement of the Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at root s=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CONTIN, G, CRAMER, JG, CRAWFORD, HJ, CUDD, AB, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FINCH, E, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOSARZEWSKI, LK, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEVINE, MJ, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLVITT, DL, PACHR, M, PAGE, BS, PAL, SK, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PERYT, W, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, SZELEZNIAK, MA, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, J, XU, N, XU, QH, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZAWISZA, Y, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, JL, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Parton Distributions, Uncertainties
Abstract: We report a new measurement of the midrapidity inclusive jet longitudinal double-spin asymmetry, A(LL), in polarized pp collisions at center-of-mass energy root s = 200 GeV. The STAR data place stringent constraints on polarized parton distribution functions extracted at next-to-leading order from global analyses of inclusive deep-inelastic scattering (DIS), semi-inclusive DIS, and RHIC pp data. The measured asymmetries provide evidence at the 3 sigma level for positive gluon polarization in the Bjorken-x region x > 0.05.
Published: 2015
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27. Measurements of dielectron production in Au plus Au collisions at root s(NN)=200 GeV from the STAR experiment

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDIN, AV, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CERVANTES, MC, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, JH, CHEN, X, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, A, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, X, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JIANG, K, JUDD, EG, JUNG, K, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOCHENDA, L, KOETKE, DD, KOLLEGGER, T, KOSARZEWSKI, LK, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, X, LI, C, LI, W, LI, ZM, LI, Y, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, YG, MA, GL, MA, L, MA, R, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MEEHAN, K, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, D, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, V, OLVITT, D, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PETERSON, A, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, MK, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, B, SUN, X, SUN, Z, SUN, XM, SUN, Y, SURROW, B, SVIRIDA, N, SZELEZNIAK, MA, TANG, AH, TANG, Z, TARNOWSKY, T, TAWFIK, AN, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, G, WANG, Y, WANG, F, WANG, H, WANG, JS, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, ZG, XIE, W, XIN, K, XU, QH, XU, Z, XU, H, XU, N, XU, YF, YANG, Q, YANG, Y, YANG, S, YANG, C, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, XP, ZHANG, J, ZHANG, Y, ZHANG, JB, ZHANG, S, ZHANG, Z, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Cern-Sps, Chiral Restoration, Multiplicity, Flow, Super-Proton Synchrotron, Heavy-Ion Collisions, Transport Approach, Dilepton Production, Sps Energies, Relativistic Nuclear Collisions
Abstract: We report on measurements of dielectron (e(+) e(-)) production in Au + Au collisions at a center-of-mass energy of 200 GeV per nucleon-nucleon pair using the STAR detector at BNL Relativistic Heavy Ion Collider. Systematic measurements of the dielectron yield as a function of transverse momentum (p(T)) and collision centrality show an enhancement compared to a cocktail simulation of hadronic sources in the low invariant-mass region (M-ee < 1 GeV / c(2)). This enhancement cannot be reproduced by the rho-meson vacuum spectral function. In minimum-bias collisions, in the invariant-mass range of 0.30-0.76 GeV / c(2), integrated over the full pT acceptance, the enhancement factor is 1.76 +/- 0.06 (stat.) +/- 0.26 (sys.) +/- 0.29 (cocktail). The enhancement factor exhibits weak centrality and pT dependence in STAR's accessible kinematic regions, while the excess yield in this invariant-mass region as a function of the number of participating nucleons follows a power-law shape with a power of 1.44 +/- 0.10. Models that assume an in-medium broadening of the rho-meson spectral function consistently describe the observed excess in these measurements. Additionally, we report on measurements of omega-and phi-meson production through their e+ e(-) decay channel. These measurements show good agreement with Tsallis blast-wave model predictions, as well as, in the case of the phi meson, results through its K+ K- decay channel. In the intermediate invariant-mass region (1.1 < Mee < 3 GeV / c(2)), we investigate the spectral shapes from different collision centralities. Physics implications for possible in-medium modification of charmed hadron production and other physics sources are discussed.
Published: 2015

28. Beam-energy-dependent two-pion interferometry and the freeze-out eccentricity of pions measured in heavy ion collisions at the STAR detector

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CONTIN, G, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FINCH, E, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOSARZEWSKI, LK, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEVINE, MJ, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLVITT, DL, PACHR, M, PAGE, BS, PAL, SK, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PERYT, W, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, SZELEZNIAK, MA, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, J, XU, N, XU, QH, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZAWISZA, Y, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, JL, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, ZYZAK, M, Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), STAR, Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Alford, J., Anson, C. D., Aparin, A., Arkhipkin, D., Aschenauer, E. C., Averichev, G. S., Banerjee, A., Beavis, D. R., Bellwied, R., Bhasin, A., Bhati, A. K., Bhattarai, P., Bichsel, H., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Borowski, W., Bouchet, J., Brandin, A. V., Brovko, S. G., Bultmann, S., Bunzarov, I., Burton, T. P., Butterworth, J., Caines, H., Calderon De La Barca Sanchez, M., Cebra, D., Cendejas, R., Cervantes, M. C., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, H. F., Chen, J. H., Chen, L., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Chwastowski, J., Codrington, M. J. M., Contin, G., Cramer, J. G., Crawford, H. J., Cui, X., Das, S., Davila Leyva, A., De Silva, L. C., Debbe, R. R., Dedovich, T. G., Deng, J., Derevschikov, A. A., Derradi De Souza, R., Dhamija, S., Di Ruzza, B., Didenko, L., Dilks, C., Ding, F., Djawotho, P., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., Engelage, J., Engle, K. S., Eppley, G., Eun, L., Evdokimov, O., Eyser, O., Fatemi, R., Fazio, S., Fedorisin, J., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Gagliardi, C. A., Gangadharan, D. R., Garand, D., Geurts, F., Gibson, A., Girard, M., Gliske, S., Greiner, L., Grosnick, D., Gunarathne, D. S., Guo, Y., Gupta, A., Gupta, S., Guryn, W., Haag, B., Hamed, A., Han, L. -X., Haque, R., Harris, J. W., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, B., Huang, H. Z., Huang, X., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jang, H., Judd, E. G., Kabana, S., Kalinkin, D., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kesich, A., Khan, Z. H., Kikola, D. P., Kisel, I., Kisiel, A., Koetke, D. D., Kollegger, T., Konzer, J., Koralt, I., Kosarzewski, L. K., Kotchenda, L., Kraishan, A. F., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Kycia, R. A., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Levine, M. J., Li, C., Li, W., Li, X., Li, Y., Li, Z. M., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Lomnitz, M., Longacre, R. S., Luo, X., Ma, G. L., Ma, Y. G., Madagodagettige Don, D. M. M. D., Mahapatra, D. P., Majka, R., Margetis, S., Markert, C., Masui, H., Matis, H. S., Mcdonald, D., Mcshane, T. S., Minaev, N. G., Mioduszewski, S., Mohanty, B., Mondal, M. M., Morozov, D. A., Mustafa, M. K., Nandi, B. K., Nasim, M., Nayak, T. K., Nelson, J. M., Nigmatkulov, G., Nogach, L. V., Noh, S. Y., Novak, J., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Ohlson, A., Okorokov, V., Oldag, E. W., Olvitt, D. L., Pachr, M., Page, B. S., Pal, S. K., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlak, T., Pawlik, B., Pei, H., Perkins, C., Peryt, W., Pile, P., Planinic, M., Pluta, J., Poljak, N., Poniatowska, K., Porter, J., Poskanzer, A. M., Pruthi, N. K., Przybycien, M., Pujahari, P. R., Putschke, J., Qiu, H., Quintero, A., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Riley, C. K., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ross, J. F., Roy, A., Ruan, L., Rusnak, J., Rusnakova, O., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandweiss, J., Sangaline, E., Sarkar, A., Schambach, J., Scharenberg, R. P., Schmah, A. M., Schmidke, W. B., Schmitz, N., Seger, J., Seyboth, P., Shah, N., Shahaliev, E., Shanmuganathan, P. V., Shao, M., Sharma, B., Shen, W. Q., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Singaraju, R. N., Skoby, M. J., Smirnov, D., Smirnov, N., Solanki, D., Sorensen, P., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stevens, J. R., Stock, R., Strikhanov, M., Stringfellow, B., Sumbera, M., Sun, X., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, D. N., Symons, T. J. M., Szelezniak, M. A., Takahashi, J., Tang, A. H., Tang, Z., Tarnowsky, T., Thomas, J. H., Timmins, A. R., Tlusty, D., Tokarev, M., Trentalange, S., Tribble, R. E., Tribedy, P., Trzeciak, B. A., Tsai, O. D., Turnau, J., Ullrich, T., Underwood, D. G., Van Buren, G., Van Nieuwenhuizen, G., Vandenbroucke, M., Vanfossen, J. A., Varma, R., Vasconcelos, G. M. S., Vasiliev, A. N., Vertesi, R., Videbaek, F., Viyogi, Y. P., Vokal, S., Vossen, A., Wada, M., Wang, F., Wang, G., Wang, H., Wang, J. S., Wang, X. L., Wang, Y., Webb, G., Webb, J. C., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Xiao, Z., Xie, W., Xin, K., Xu, H., Xu, J., Xu, N., Xu, Q. H., Xu, Y., Xu, Z., Yan, W., Yang, C., Yang, Y., Ye, Z., Yepes, P., Yi, L., Yip, K., Yoo, I. K., Yu, N., Zawisza, Y., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, J. L., Zhang, S., Zhang, X. P., Zhang, Y., Zhang, Z. P., Zhao, F., Zhao, J., Zhong, C., Zhu, X., Zhu, Y. H., Zoulkarneeva, Y., and Zyzak, M.
Subjects: Nuclear and High Energy Physics, STAR, pions, Hadron, Nuclear Theory, Critical-Point, Relativistic Nuclear Collisions, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Kinetic energy, 7. Clean energy, 01 natural sciences, Nuclear physics, Pion, heavy-ions, Pb+Pb Collisions, 0103 physical sciences, Bose-Einstein Correlations, 010306 general physics, Nuclear Experiment, Transverse-Momentum, Physics, 010308 nuclear & particles physics, Observable, Sps Energies, Qcd, NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, Coulomb Corrections, Quark–gluon plasma, Quark-Gluon Plasma, Transverse mass, Phase-Transition, Relativistic Heavy Ion Collider, STAR detector
Abstract: 27 pages; 28 figures ; see paper for full list of authors; International audience; We present results of analyses of two-pion interferometry in Au+Au collisions at $\sqrt{s_{NN}}$ = 7.7, 11.5, 19.6, 27, 39, 62.4 and 200 GeV measured in the STAR detector as part of the RHIC Beam Energy Scan program. The extracted correlation lengths (HBT radii) are studied as a function of beam energy, azimuthal angle relative to the reaction plane, centrality, and transverse mass ($m_{T}$) of the particles. The azimuthal analysis allows extraction of the eccentricity of the entire fireball at kinetic freeze-out. The energy dependence of this observable is expected to be sensitive to changes in the equation of state. A new global fit method is studied as an alternate method to directly measure the parameters in the azimuthal analysis. The eccentricity shows a monotonic decrease with beam energy that is qualitatively consistent with the trend from all model predictions and quantitatively consistent with a hadronic transport model.
Published: 2015
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29. Azimuthal Anisotropy in U plus U and Au plus Au Collisions at RHIC

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDIN, AV, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CERVANTES, MC, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, JH, CHEN, X, CHENG, J, CHERNEY, M, CHRISTIE, W, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, Z, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, A, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, HZ, HUANG, B, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JIANG, K, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KOSARZEWSKI, LK, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, W, LI, Y, LI, C, LI, ZM, LI, X, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, L, MA, R, MA, YG, MA, GL, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MEEHAN, K, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, V, OLVITT, DL, PAGE, BS, PAK, R, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLIK, B, PEI, H, PERKINS, C, PETERSON, A, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, S, RANIWALA, R, RAY, RL, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHARMA, MK, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEPANOV, M, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, BJ, SUN, X, SUN, XM, SUN, Z, SUN, Y, SURROW, B, SVIRIDA, DN, SZELEZNIAK, MA, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, AN, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, F, WANG, Y, WANG, H, WANG, JS, WANG, G, WEBB, G, WEBB, JC, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, YF, XU, N, XU, Z, XU, QH, XU, H, YANG, Y, YANG, C, YANG, S, YANG, Q, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, XP, ZHANG, JB, ZHANG, J, ZHANG, Z, ZHANG, S, ZHANG, Y, ZHANG, JL, ZHAO, F, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Energy, Matter, Elliptic Flow, Perspective, Quark-Gluon Plasma, Heavy-Ion Collisions, Nuclear Collisions, Qcd, Collaboration
Abstract: Collisions between prolate uranium nuclei are used to study how particle production and azimuthal anisotropies depend on initial geometry in heavy-ion collisions. We report the two- and four-particle cumulants, v(2){2} and v(2){4}, for charged hadrons from U + U collisions at root s(NN) = 193 GeV and Au + Au collisions at root s(NN) = 200 GeV. Nearly fully overlapping collisions are selected based on the energy deposited by spectators in zero degree calorimeters (ZDCs). Within this sample, the observed dependence of v(2){2} on multiplicity demonstrates that ZDC information combined with multiplicity can preferentially select different overlap configurations in U + U collisions. We also show that v(2) vs multiplicity can be better described by models, such as gluon saturation or quark participant models, that eliminate the dependence of the multiplicity on the number of binary nucleon-nucleon collisions.
Published: 2015

30. Isolation of flow and nonflow correlations by two- and four-particle cumulant measurements of azimuthal harmonics in root s(NN)=200 GeV Au+Au collisions

Author: ABDELWAHAB, NM, ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CODRINGTON, MJM, CONTIN, G, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOSARZEWSKI, LK, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLVITT, DL, PAGE, BS, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMKO, M, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, SZELEZNIAK, MA, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, J, XU, N, XU, QH, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, JL, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Nonflow, Flow, Heavy-Ion, Relativistic Nuclear Collisions, Collective Flow
Abstract: A data-driven method was applied to Au+Au collisions at root S-NN = 200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance Delta eta-dependent and Delta eta-independent correlations by using two- and four-particle azimuthal cumulant measurements. We identified a Delta eta-independent component of the correlation, which is dominated by anisotropic flow and flow fluctuations. It was also found to be independent of. within the measured range of pseudorapidity vertical bar eta vertical bar < 1. In 20-30% central Au+Au collisions, the relative flow fluctuation was found to be 34% +/- 2%(stat.) +/- 3%(sys.) for particles with transverse momentum p(T) less than 2 GeV/c. The Delta eta-dependent part, attributed to nonflow correlations, is found to be 5% +/- 2%(sys.) relative to the flow of the measured second harmonic cumulant at vertical bar Delta eta vertical bar > 0.7. (C) 2015 The Authors. Published by Elsevier B.V.
Published: 2015

31. Effect of event selection on jetlike correlation measurement in d plus Au collisions at root s(NN)=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDIN, AV, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, S'ANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CERVANTES, MC, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, JH, CHENG, J, CHERNEY, M, CHRISTIE, W, CODRINGTON, MJM, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, FILIP, P, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, A, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, HZ, HUANG, X, HUANG, B, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KLEIN, R, KOETKE, DD, KOLLEGGER, T, KOSARZEWSKI, LK, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, X, LI, C, LI, W, LI, ZM, LI, Y, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, L, MA, GL, MA, YG, MA, R, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, V, OLVITT, DL, PAGE, BS, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHARMA, MK, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMKO, M, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, BJ, SUN, Z, SUN, Y, SUN, X, SUN, XM, SURROW, B, SVIRIDA, DN, SZELEZNIAK, MA, TAKAHASHI, J, TANG, Z, TANG, AH, TARNOWSKY, T, TAWFIK, AN, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, JS, WANG, Y, WANG, F, WANG, G, WANG, H, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, QH, XU, H, XU, N, XU, YF, XU, Z, YAN, W, YANG, Y, YANG, Q, YANG, C, YANG, S, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, XP, ZHANG, S, ZHANG, Z, ZHANG, Y, ZHANG, JL, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Star, Time Projection Chamber, Long-Range, Perspective, Quark-Gluon Plasma, Side, Angular-Correlations, Ppb Collisions, Collaboration
Abstract: Dihadron correlations are analyzed in root s(NN) = 200 GeV d + Au collisions classified by forward charged particle multiplicity and zero-degree neutral energy in the Au-beam direction. It is found that the jetlike correlated yield increases with the event multiplicity. After taking into account this dependence, the non-jet contribution on the away side is minimal, leaving little room for a back-to-back ridge in these collisions. (C) 2015 The Authors. Published by Elsevier B.V.
Published: 2015
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32. Long-range pseudorapidity dihadron correlations in d plus Au collisions at root S-NN=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, R, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDIN, AV, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, S'ANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CERVANTES, MC, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, JH, CHEN, X, CHENG, J, CHERNEY, M, CHRISTIE, W, CODRINGTON, MJM, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, S, GUPTA, A, GURYN, W, HAMAD, A, HAMED, A, HAGUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, HZ, HUANG, X, HUANG, B, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JIANG, K, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KOSARZEWSKI, LK, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, R, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, X, LI, W, LI, ZM, LI, Y, LI, C, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, L, MA, R, MA, GL, MA, YG, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MEEHAN, K, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, V, OLVITT, DL, PAGE, BS, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PETERSON, A, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSIK, M, POSKANZER, AM, PRUTHI, NK, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, MK, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SKOBY, MJ, SMIRNOV, N, SMIRNOV, D, SOLANKI, D, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, BJ, SUN, Y, SUN, Z, SUN, XM, SUN, X, SURROW, B, SVIRIDA, DN, SZELEZNIAK, MA, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, TAWFIK, AN, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, Y, WANG, F, WANG, H, WANG, JS, WANG, G, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, Z, XU, QH, XU, N, XU, H, XU, YF, YANG, Y, YANG, C, YANG, S, YANG, Q, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, XP, ZHANG, S, ZHANG, J, ZHANG, Z, ZHANG, Y, ZHANG, JL, ZHAO, F, ZHAO, J, ZHONG, C, ZHOU, L, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Star, Time Projection Chamber, P-Pb Collisions, Quark-Gluon Plasma, Heavy-Ion Collisions, Root-S(Nn)=5.02 Tev, Angular-Correlations, Collective Flow, Ppb Collisions, Collaboration
Abstract: Dihadron angular correlations in d + Au collisions at root S-NN = 200 GeV are reported as a function of the measured zero-degree calorimeter neutral energy and the forward charged hadron multiplicity in the Au-beam direction. A finite correlated yield is observed at large relative pseudorapidity (Delta eta) on the near side (i.e. relative azimuth Delta phi similar to 0). This correlated yield as a function of Delta eta appears to scale with the dominant, primarily jet-related, away-side (Delta phi similar to pi) yield. The Fourier coefficients of the Delta phi correlation, V-n = < cosn Delta phi >, have a strong Delta eta dependence. In addition, it is found that V-1 is approximately inversely proportional to the mid-rapidity event multiplicity, while V-2 is independent of it with similar magnitude in the forward (d-going) and backward (Au-going) directions. (C) 2015 The Authors. Published by Elsevier B.V.
Published: 2015

33. Energy dependence of K pi, p pi, and Kp fluctuations in Au plus Au collisions from root s(NN)=7.7 to 200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOUCHET, J, BRANDIN, AV, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, S'ANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CERVANTES, MC, CHAKABERIA, I, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, X, CHEN, JH, CHENG, J, CHERNEY, M, CHRISTIE, W, CODRINGTON, MJM, CONTIN, G, CRAWFORD, HJ, DAS, S, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DI RUZZA, B, DIDENKO, L, DILKS, C, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, EPPLEY, G, ESHA, R, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDERIC, P, FEDORISIN, J, FENG, FILIP, P, FISYAK, Y, FLORES, CE, FULEK, L, GAGLIARDI, CA, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAMAD, A, HAMED, A, HAQUE, R, HARRIS, JW, HE, L, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, HZ, HUANG, B, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KLEIN, SR, KOETKE, DD, KOLLEGGER, T, KOSARZEWSKI, LK, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, W, LI, ZM, LI, C, LI, Y, LI, X, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, L, MA, R, MA, GL, MA, YG, MAGDY, N, MAJKA, R, MANION, A, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MEEHAN, K, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OKOROKOV, V, OLVITT, DL, PAGE, BS, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PETERSON, A, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSKANZER, AM, PRUTHI, NK, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, S, RANIWALA, R, RAY, RL, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, MK, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIKORA, R, SIMKO, M, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SONG, L, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUMMA, BJ, SUN, Z, SUN, Y, SUN, XM, SUN, X, SURROW, B, SVIRIDA, DN, SZELEZNIAK, MA, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, TAWFIK, AN, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRIPATHY, SK, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, UPSAL, I, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VARMA, R, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WANG, Y, WANG, F, WANG, JS, WANG, H, WANG, G, WEBB, JC, WEBB, G, WEN, L, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, N, XU, H, XU, YF, XU, QH, XU, Z, YANG, Y, YANG, S, YANG, C, YANG, Q, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, J, ZHANG, Y, ZHANG, S, ZHANG, XP, ZHANG, JB, ZHANG, JL, ZHANG, Z, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Nucleus-Nucleus Collisions, Deconfinement Phase-Transition, Star Experiment, By-Event Fluctuations
Abstract: A search for the quantum chromodynamics (QCD) critical point was performed by the STAR experiment at the BNL Relativistic Heavy Ion Collider, using dynamical fluctuations of unlike particle pairs. Heavy ion collisions were studied over a large range of collision energies with homogeneous acceptance and excellent particle identification, covering a significant range in the QCD phase diagram where a critical point may be located. Dynamical K pi, p pi, and Kp fluctuations as measured by the STAR experiment in central 0-5% Au + Au collisions from center-of-mass collision energies root s(NN) = 7.7 to 200 GeV are presented. The observable nu(dyn) was used to quantify the magnitude of the dynamical fluctuations in event-by-event measurements of the Kp, pp, and Kp pairs. The energy dependences of these fluctuations from central 0-5% Au + Au collisions all demonstrate a smooth evolution with collision energy.
Published: 2015

34. Charged-to-neutral correlation at forward rapidity in Au plus Au collisions at root s(NN)=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CONTIN, G, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOSARZEWSKI, LK, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLVITT, DL, PAGE, BS, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMKO, M, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, SZELEZNIAK, MA, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, J, XU, N, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, JL, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Disoriented Chiral Condensate, Star Experiment, Time Projection Chamber, Perspective, Quark-Gluon Plasma, Search, Heavy-Ion Collisions, Fluctuations, Detector, Collaboration
Abstract: Event-by-event fluctuations of the multiplicities of inclusive charged particles and photons at forward rapidity in Au + Au collisions at root s(NN) = 200 GeV have been studied. The dominant contribution to such fluctuations is expected to come from correlated production of charged and neutral pions. We search for evidence of dynamical fluctuations of different physical origins. Observables constructed out of moments of multiplicities are used as measures of fluctuations. Mixed events and model calculations are used as base lines. Results are compared to the dynamical net-charge fluctuations measured in the same acceptance. A nonzero statistically significant signal of dynamical fluctuations is observed in excess to the model prediction when charged particles and photons are measured in the same acceptance. We find that, unlike dynamical net-charge fluctuation, charge-neutral fluctuation is not dominated by correlation owing to particle decay. Results are compared to the expectations based on the generic production mechanism of pions owing to isospin symmetry, for which no significant (
Published: 2015

35. Lambda Lambda Correlation Function in Au plus Au Collisions at root s(NN)=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCDLB, CAMPBELL, JM, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CONTIN, G, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOSARZEWSKI, LK, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLVITT, DL, PAGE, BS, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMKO, M, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, SZELEZNIAK, MA, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, J, XU, N, XU, QH, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, JL, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Particles, Dihyperon, Dibaryon, Hypernuclei, Search, Heavy-Ion Collisions, Femtoscopy, Stars
Abstract: We present Lambda Lambda correlation measurements in heavy-ion collisions for Au + Au collisions at root s(NN) = 200 GeV using the STAR experiment at the Relativistic Heavy-Ion Collider. The Lednicky-Lyuboshitz analytical model has been used to fit the data to obtain a source size, a scattering length and an effective range. Implications of the measurement of the Lambda Lambda correlation function and interaction parameters for dihyperon searches are discussed.
Published: 2015

36. Neutral pion cross section and spin asymmetries at intermediate pseudorapidity in polarized proton collisions at root s=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BALEWSKI, J, BANERJEE, A, BARBER, B, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BETANCOURT, MJ, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BRIDGEMAN, A, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DION, A, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GROSNICK, D, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HAYS-WEHLE, JP, HE, W, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JENA, C, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LUO, X, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NOGACH, LV, NOH, SY, NORD, PM, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PERYT, W, PETERSON, A, PILE, P, PLANINIC, M, PLUTA, J, PLYKU, D, POCHRON, W, POLJAK, N, PORTER, J, POSKANZER, AM, POWELL, CB, PRUNEAU, C, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHAUB, J, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, DESOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, ZAWISZA, Y, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Pi-0 Production, Star, Parton Distributions, Fragmentation, Plus P Collisions, Antiprotons, Qcd, Transverse-Momentum
Abstract: The differential cross section and spin asymmetries for neutral pions produced within the intermediate pseudorapidity range 0.8 < eta < 2.0 in polarized proton-proton collisions at root s = 200 GeV are presented. Neutral pions were detected using the end cap electromagnetic calorimeter in the STAR detector at RHIC. The cross section was measured over a transverse momentum range of 5 < p(T) < 16 GeV/c and is found to agree with a next-to-leading order perturbative QCD calculation. The longitudinal double-spin asymmetry A(LL) is measured in the same pseudorapidity range and spans a range of Bjorken-x down to x approximate to 0.01. The measured A(LL) is consistent with model predictions for varying degrees of gluon polarization. The parity-violating asymmetry A(L) is also measured and found to be consistent with zero. The transverse single-spin asymmetry A(N) is measured over a previously unexplored kinematic range in Feynman-x and p(T). Such measurements may aid our understanding of the onset and kinematic dependence of the large asymmetries observed at more forward pseudorapidity (eta approximate to 3) and their underlying mechanisms. The A(N) results presented are consistent with a twist-3 model prediction of a small asymmetry over the present kinematic range.
Published: 2014
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37. Jet-Hadron Correlations in root s(NN)=200 GeV p plus p and Central Au plus Au Collisions

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CONTIN, G, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FINCH, E, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEVINE, MJ, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLVITT, DL, PACHR, M, PAGE, BS, PAL, SK, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PERYT, W, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, SZELEZNIAK, MA, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, J, XU, N, XU, QH, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZAWISZA, Y, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, JL, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Star, Nucleus-Nucleus Collisions, Particle Suppression, Time Projection Chamber, Perspective, Quark-Gluon Plasma, Tev, Dependence, Collaboration, Transverse-Momentum
Abstract: Azimuthal angular correlations of charged hadrons with respect to the axis of a reconstructed (trigger) jet in Au + Au and p + p collisions at root s(NN) = 200 GeV in STAR are presented. The trigger jet population in Au + Au collisions is biased toward jets that have not interacted with the medium, allowing easier matching of jet energies between Au + Au and p + p collisions while enhancing medium effects on the recoil jet. The associated hadron yield of the recoil jet is significantly suppressed at high transverse momentum (p(T)(assoc)) and enhanced at low p(T)(assoc) in 0%-20% central Au + Au collisions compared to p + p collisions, which is indicative of medium-induced parton energy loss in ultrarelativistic heavy-ion collisions.
Published: 2014
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38. Energy dependence of moments of net-proton multiplicity distributions at RHIC

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BALEWSKI, J, BANERJEE, A, BAMOVSKA, Z, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HE, CHEN, JH, CHEN, L, CHENG, J, CHEMEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, E, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFMUNOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FINCH, E, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, E, GIBSON, A, GIRARD, M, GLISKE, S, GROSNICK, D, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HAYS-WEHLE, JP, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LUO, X, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, PACHR, M, PAGE, BS, PAL, SK, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PERYT, W, PETERSON, A, PILE, P, PLANINIC, M, PLUTA, J, PLYKU, D, POLJAK, N, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SINGARAJU, RN, SKOBY, MJ, SMIMOV, D, SMIMOV, N, SOLANKI, D, SORENSEN, P, DESOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TUMAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, E, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, VOSSEN, A, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YE, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, ZAWISZA, Y, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKAMEEVA, Y, and ZYZAK, M
Subjects: Particle physics, COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS, Nuclear Theory, Hadron, FOS: Physical sciences, General Physics and Astronomy, Critical-Point, High Energy Physics - Experiment, Nuclear Theory (nucl-th), Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), High Energy Physics - Lattice, Qcd Phase-Diagram, multiplicity, Fluctuations, Quantum Chromodynamics, Collisions, Nuclear Experiment (nucl-ex), Multiplicity (chemistry), Nuclear Experiment, Quantum chromodynamics, Physics, RHIC, High Energy Physics - Lattice (hep-lat), Sigma, Collaboration, NATURAL SCIENCES. Physics, PRIRODNE ZNANOSTI. Fizika, High Energy Physics - Phenomenology, Antiproton, Quark–gluon plasma, Transition, Perspective, Quark-Gluon Plasma, High Energy Physics::Experiment, Baryon number, energy, Relativistic Heavy Ion Collider, Model
Abstract: We report the beam energy (\sqrt s_{NN} = 7.7 - 200 GeV) and collision centrality dependence of the mean (M), standard deviation (\sigma), skewness (S), and kurtosis (\kappa) of the net-proton multiplicity distributions in Au+Au collisions. The measurements are carried out by the STAR experiment at midrapidity (|y| < 0.5) and within the transverse momentum range 0.4 < pT < 0.8 GeV/c in the first phase of the Beam Energy Scan program at the Relativistic Heavy Ion Collider. These measurements are important for understanding the Quantum Chromodynamic (QCD) phase diagram. The products of the moments, S\sigma and \kappa\sigma^{2}, are sensitive to the correlation length of the hot and dense medium created in the collisions and are related to the ratios of baryon number susceptibilities of corresponding orders. The products of moments are found to have values significantly below the Skellam expectation and close to expectations based on independent proton and anti-proton production. The measurements are compared to a transport model calculation to understand the effect of acceptance and baryon number conservation, and also to a hadron resonance gas model., Comment: 7 pages and 4 figures
Published: 2014
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39. Event-plane-dependent dihadron correlations with harmonic v(n) subtraction in Au plus Au collisions at v root sNN=200 GeV

Author: AGAKISHIEV, H, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BEAVIS, DR, BEHERA, NK, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BIRITZ, B, BLAND, LC, BOROWSKI, W, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRIDGEMAN, A, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, DASH, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FATEMI, R, FEDORISIN, J, FENG, A, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEROMITSOS, A, GEURTS, F, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, GROSNICK, D, GUERTIN, SM, GUPTA, A, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HJORT, E, HOFFMANN, GW, HOFMAN, DJ, HUANG, B, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, P, JACOBS, WW, JENA, C, JIN, F, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, H, KEANE, D, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KNOSPE, AG, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, ZM, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, LUKASHOV, EV, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, MITROVSKI, MK, MOHANTY, B, MONDAL, MM, MOROZOV, B, MOROZOV, DA, MUNHOZ, MG, NAGLIS, M, NANDI, BK, NAYAK, TK, NETRAKANTI, PK, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEI, H, PEITZMANN, T, PERKINS, C, PERYT, W, PHATAK, SC, PILE, P, PLANINIC, M, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, REDWINE, R, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, RUAN, L, RUSNAK, J, SAHOO, NR, SAKAI, S, SAKREJDA, I, SAKUMA, T, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STASZAK, D, STEADMAN, SG, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, J, ZHONG, C, ZHOU, W, ZHU, X, ZHU, YH, ZOULKARNEEV, R, and ZOULKARNEEVA, Y
Subjects: Perspective, Quark-Gluon Plasma, Relativistic Nuclear Collisions, Collaboration, Anisotropic Flow
Abstract: STAR measurements of dihadron azimuthal correlations (Lambda phi) are reported in midcentral (20-60%) Au + Au collisions at v root sNN = 200 GeV as a function of the trigger particle's azimuthal angle relative to the event plane, phi(s) = | phi(1) -psi(EP)|. The elliptic (v(2)), triangular (v(3)), and quadratic (v(4)) flow harmonic backgrounds are subtracted using the zero yield at mini + Au collisions. It is found that a finite near-side (| Delta phi | < pi/2) long-range pseudorapidity correlation (ridge) is present in the in-plane direction (phi(s) similar to 0). The away-side (| Delta phi | > pi/2) correlation shows a modification from d+ Au data, varying with fs. The modification may be a consequence of path-length-dependent jet quenching and may lead to a better understanding of high-density QCD.
Published: 2014

40. J/psi production at low p(T) in Au plus Au and Cu plus Cu collisions at root s(NN)=200 GeV with the STAR detector

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CAMPBELL, JM, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CONTIN, G, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOSARZEWSKI, LK, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLVITT, DL, PAGE, BS, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PONIATOWSKA, K, PORTER, J, POSKANZER, AM, POWELL, CB, PRUTHI, NK, PRZYBYCIEN, M, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMKO, M, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, SZELEZNIAK, MA, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, J, XU, N, XU, QH, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, JL, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: System, Matter, Momentum Dependence, Quark-Gluon Plasma, Heavy-Ion Collisions, Particle Identification, Charmonium Production, Psi-Suppression, Energy Nuclear Collisions
Abstract: The J/psi p(T) spectrum and nuclear modification factor (R-AA) are reported for p(T) < 5 GeV/c and vertical bar y vertical bar < 1 from 0% to 60% central Au + Au and Cu + Cu collisions at root s(NN) = 200 GeV at STAR. A significant suppression of p(T) - integrated J/psi production is observed in central Au + Au events. The Cu + Cu data are consistent with no suppression, although the precision is limited by the available statistics. R-AA in Au + Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with p(T). The data are compared to high-p(T) STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low p(T) are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration.
Published: 2014

41. Suppression of Upsilon production in d plus Au and Au plus Au collisions at root S-NN=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BALEWSKI, J, BANERJEE, A, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FINCH, E, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GROSNICK, D, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HAYS-WEHLE, JP, HEPPELMANN, S, HILL, K, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LUO, X, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, PACHR, M, PAGE, BS, PAL, SK, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PERYT, W, PETERSON, A, PILE, P, PLANINIC, M, PLUTA, J, PLYKU, D, POLJAK, N, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, DESOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOSSEN, A, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WIMSATT, G, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, ZAWISZA, Y, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, JL, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Nucleus Collisions, Relativistic Heavy-Ion Collisions, Star, Heavy-Ion Collisions, Lhc, Upsilon Suppression, Quarkonium In-Medium, J/Psi, Absorption
Abstract: We report measurements of Upsilon meson production in p + p, d + Au, and Au + Au collisions using the STAR detector at RHIC. We compare the Upsilon yield to the measured cross section in p + p collisions in order to quantify any modifications of the yield in cold nuclear matter using d + Au data and in hot nuclear matter using Au + Au data separated into three centrality classes. Our p + p measurement is based on three times the statistics of our previous result. We obtain a nuclear modification factor for Upsilon (1S + 2S + 3S) in the rapidity range vertical bar y vertical bar < 1 in d + Au collisions of R-dAu = 0.79 +/- 0.24(stat.) +/- 0.03(syst.) +/- 0.10(p + p syst.). A comparison with models including shadowing and initial state parton energy loss indicates the presence of additional cold-nuclear matter suppression. Similarly, in the top 10% most-central Au + Au collisions, we measure a nuclear modification factor of R-AA = 0.49 +/- 0.1(stat.) +/- 0.02(syst.) +/- 0.06(p + p syst.), which is a larger suppression factor than that seen in cold nuclear matter. Our results are consistent with complete suppression of excited-state Upsilon mesons in Au + Au collisions. The additional suppression in Au + Au is consistent with the level expected in model calculations that include the presence of a hot, deconfined Quark-Gluon Plasma. However, understanding the suppression seen in d + Au is still needed before any definitive statements about the nature of the suppression in Au + Au can be made. (C) 2014 The Authors. Published by Elsevier B.V.
Published: 2014
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42. Dielectron Mass Spectra from Au plus Au Collisions at root s(NN)=200 Ge V

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FINCH, E, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GROSNICK, D, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEVINE, MJ, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LUO, X, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, PACHR, M, PAGE, BS, PAL, SK, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PERYT, W, PILE, P, PLANINIC, M, PLUTA, J, PLYKU, D, POLJAK, N, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, DESOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBK, F, VIYOGI, YP, VOKAL, S, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, ZAWISZA, Y, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, JL, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Matter, Restoration, Perspective, Quark-Gluon Plasma, Heavy-Ion Collisions, Collaboration, Dileptons
Abstract: We report the STAR measurements of dielectron (e(+)e(-)) production at midrapidity (vertical bar y(ee)vertical bar < 1) in Au + Au collisions at root s(NN) = 200 GeV. The measurements are evaluated in different invariant mass regions with a focus on 0.30-0.76 (rho-like), 0.76-0.80 (omega-like), and 0.98-1.05 (phi-like) GeV/c(2). The spectrum in the omega-like and phi-like regions can be well described by the hadronic cocktail simulation. In the rho-like region, however, the vacuum rho spectral function cannot describe the shape of the dielectron excess. In this range, an enhancement of 1.77 +/- 0.11(stat) +/- 0.24(syst) +/- 0.33(cocktail) is determined with respect to the hadronic cocktail simulation that excludes the rho meson. The excess yield in the rho-like region increases with the number of collision participants faster than the omega and phi yields. Theoretical models with broadened rho contributions through interactions with constituents in the hot QCD medium provide a consistent description of the dilepton mass spectra for the measurement presented here and the earlier data at the Super Proton Synchrotron energies.
Published: 2014

43. Observation of D-0 Meson Nuclear Modifications in Au plus Au Collisions at root(NN)-N-s=200 GeV

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BANERJEE, A, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CONTIN, G, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, EYSER, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FINCH, E, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GREINER, L, GROSNICK, D, GUNARATHNE, DS, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUANG, X, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOTCHENDA, L, KRAISHAN, AF, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEVINE, MJ, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LOMNITZ, M, LONGACRE, RS, LUO, X, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NIGMATKULOV, G, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLVITT, DL, PACHR, M, PAGE, BS, PAL, SK, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PERYT, W, PILE, P, PLANINIC, M, PLUTA, J, POLJAK, N, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, PUTSCHKE, J, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, RUSNAKOVA, O, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, SZELEZNIAK, MA, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANDENBROUCKE, M, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOSSEN, A, WADA, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, J, XU, N, XU, QH, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, YU, N, ZAWISZA, Y, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, JL, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Charm, Star, Qcd Matter, Spectra, Collaboration, Dynamics
Abstract: We report the first measurement of charmed-hadron (D-0) production via the hadronic decay channel (D-0 -> K- + pi(+)) in Au + Au collisions at root(NN)-N-s = 200 GeV with the STAR experiment. The charm production cross section per nucleon- nucleon collision at midrapidity scales with the number of binary collisions, N-bin, from p + p to central Au + Au collisions. The D-0 meson yields in central Au + Au collisions are strongly suppressed compared to those in p + p scaled by N-bin, for transverse momenta p(T) > 3 GeV/c, demonstrating significant energy loss of charm quarks in the hot and dense medium. An enhancement at intermediate p(T) is also observed. Model calculations including strong charm-medium interactions and coalescence hadronization describe our measurements.
Published: 2014

44. Beam Energy Dependence of Moments of the Net-Charge Multiplicity Distributions in Au plus Au Collisions at RHIC

Author: ADAMCZYK, L, ADKINS, JK, AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALEKSEEV, I, ALFORD, J, ANSON, CD, APARIN, A, ARKHIPKIN, D, ASCHENAUER, EC, AVERICHEV, GS, BALEWSKI, J, BANERJEE, A, BARNOVSKA, Z, BEAVIS, DR, BELLWIED, R, BHASIN, A, BHATI, AK, BHATTARAI, P, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRANDIN, AV, BROVKO, SG, BULTMANN, S, BUNZAROV, I, BURTON, TP, BUTTERWORTH, J, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHANG, Z, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHRISTIE, W, CHWASTOWSKI, J, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, CUI, X, DAS, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DHAMIJA, S, DI RUZZA, B, DIDENKO, L, DILKS, C, DING, F, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNKELBERGER, LE, DUNLOP, JC, EFIMOV, LG, ENGELAGE, J, ENGLE, KS, EPPLEY, G, EUN, L, EVDOKIMOV, O, FATEMI, R, FAZIO, S, FEDORISIN, J, FILIP, P, FINCH, E, FISYAK, Y, FLORES, CE, GAGLIARDI, CA, GANGADHARAN, DR, GARAND, D, GEURTS, F, GIBSON, A, GIRARD, M, GLISKE, S, GROSNICK, D, GUO, Y, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HAQUE, R, HARRIS, JW, HAYS-WEHLE, JP, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HORVAT, S, HUANG, B, HUANG, HZ, HUCK, P, HUMANIC, TJ, IGO, G, JACOBS, WW, JANG, H, JUDD, EG, KABANA, S, KALINKIN, D, KANG, K, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KESICH, A, KHAN, ZH, KIKOLA, DP, KISEL, I, KISIEL, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KORSCH, W, KOTCHENDA, L, KRAVTSOV, P, KRUEGER, K, KULAKOV, I, KUMAR, L, KYCIA, RA, LAMONT, MAC, LANDGRAF, JM, LANDRY, KD, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LUO, X, MA, GL, MA, YG, DON, DMMDM, MAHAPATRA, DP, MAJKA, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MINAEV, NG, MIODUSZEWSKI, S, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, MUSTAFA, MK, NANDI, BK, NASIM, M, NAYAK, TK, NELSON, JM, NOGACH, LV, NOH, SY, NOVAK, J, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, PACHR, M, PAGE, BS, PAL, SK, PAN, YX, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PAWLIK, B, PEI, H, PERKINS, C, PERYT, W, PETERSON, A, PILE, P, PLANINIC, M, PLUTA, J, PLYKU, D, POLJAK, N, PORTER, J, POSKANZER, AM, PRUTHI, NK, PRZYBYCIEN, M, PUJAHARI, PR, QIU, H, QUINTERO, A, RAMACHANDRAN, S, RANIWALA, R, RANIWALA, S, RAY, RL, RILEY, CK, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, ROSS, JF, ROY, A, RUAN, L, RUSNAK, J, SAHOO, NR, SAHU, PK, SAKREJDA, I, SALUR, S, SANDACZ, A, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHMAH, AM, SCHMIDKE, WB, SCHMITZ, N, SEGER, J, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHANMUGANATHAN, PV, SHAO, M, SHARMA, B, SHEN, WQ, SHI, SS, SHOU, QY, SICHTERMANN, EP, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, D, SMIRNOV, N, SOLANKI, D, SORENSEN, P, DESOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUMBERA, M, SUN, X, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARNOWSKY, T, THOMAS, JH, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, TURNAU, J, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VERTESI, R, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOSSEN, A, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, XIAO, Z, XIE, W, XIN, K, XU, H, XU, N, XU, QH, XU, Y, XU, Z, YAN, W, YANG, C, YANG, Y, YE, Z, YEPES, P, YI, L, YIP, K, YOO, IK, ZAWISZA, Y, ZBROSZCZYK, H, ZHA, W, ZHANG, JB, ZHANG, S, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, ZOULKARNEEVA, Y, and ZYZAK, M
Subjects: Star, Qcd, Point
Abstract: We report the first measurements of the moments-mean (M), variance (sigma(2)), skewness (S), and kurtosis (kappa)-of the net-charge multiplicity distributions at midrapidity in Au + Au collisions at seven energies, ranging from root s(NN) = 7.7 to 200 GeV, as a part of the Beam Energy Scan program at RHIC. The moments are related to the thermodynamic susceptibilities of net charge, and are sensitive to the location of the QCD critical point. We compare the products of the moments, sigma(2)/M, S sigma, and kappa sigma(2), with the expectations from Poisson and negative binomial distributions (NBDs). The S sigma values deviate from the Poisson baseline and are close to the NBD baseline, while the kappa sigma(2) values tend to lie between the two. Within the present uncertainties, our data do not show nonmonotonic behavior as a function of collision energy. These measurements provide a valuable tool to extract the freeze-out parameters in heavy-ion collisions by comparing with theoretical models.
Published: 2014

45. Strangeness Enhancement in Cu-Cu and Au-Au Collisions at root s(NN)=200 GeV

Author: AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, BEAVIS, DR, BEHERA, NK, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRIDGEMAN, A, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, CUI, X, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEURTS, F, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, OG, GROSNICK, D, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HJORT, E, HOFFMANN, GW, HOFMAN, DJ, HUANG, B, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, P, JACOBS, WW, JENA, C, JIN, F, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KLEIN, SR, KNOSPE, AG, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUKASHOV, EV, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MONDAL, MM, MOROZOV, B, MOROZOV, DA, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NAYAK, TK, NELSON, JM, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEI, H, PEITZMANN, T, PERKINS, C, PERYT, W, PILE, P, PLANINIC, M, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, PORTER, J, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, SAHOO, NR, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHAUB, J, SCHMAH, AM, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SOLANKI, D, SORENSEN, P, DESOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEADMAN, SG, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, and ZOULKARNEEVA, Y
Subjects: Energy, Particle, Dependence
Abstract: We report new STAR measurements of midrapidity yields for the Lambda, (Lambda) over bar, K-S(0), Xi(-), (Xi) over bar (+), Omega(-), (Omega) over bar (+) particles in Cu + Cu collisions at root s(NN) = 200 GeV, and midrapidity yields for the Lambda, (Lambda) over bar, K-S(0) particles in Au + Au at root s(NN) = 200 GeV. We show that, at a given number of participating nucleons, the production of strange hadrons is higher in Cu + Cu collisions than in Au + Au collisions at the same center-of-mass energy. We find that aspects of the enhancement factors for all particles can be described by a parametrization based on the fraction of participants that undergo multiple collisions.
Published: 2012
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46. rho(0) photoproduction in AuAu collisions at root s(NN)=62.4 GeV measured with the STAR detector

Author: AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BEAVIS, DR, BEHERA, NK, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRIDGEMAN, A, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GEURTS, F, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, OG, GROSNICK, D, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HJORT, E, HOFFMANN, GW, HOFMAN, DJ, HUANG, B, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, P, JACOBS, WW, JENA, C, JIN, F, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KLEIN, SR, KNOSPE, AG, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUKASHOV, EV, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MONDAL, MM, MOROZOV, B, MOROZOV, DA, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NAYAK, TK, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEI, H, PEITZMANN, T, PERKINS, C, PERYT, W, PILE, P, PLANINIC, M, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, PORTER, J, POSKANZER, AM, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, RAY, RL, REDWINE, R, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, SAHOO, NR, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHAUB, J, SCHMAH, AM, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SOLANKI, D, SORENSEN, P, DESOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEADMAN, SG, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, and ZOULKARNEEVA, Y
Subjects: Hera, Physics, Time Projection Chamber, Heavy-Ion Collisions, Saturation
Abstract: Vector mesons may be photoproduced in relativistic heavy-ion collisions when a virtual photon emitted by one nucleus scatters from the other nucleus, emerging as a vector meson. The STAR Collaboration has previously presented measurements of coherent rho(0) photoproduction at center of mass energies of 130 GeV and 200 GeV in AuAu collisions. Here, we present a measurement of the cross section at 62.4 GeV; we find that the cross section for coherent rho(0) photoproduction with nuclear breakup is 10.5 +/- 1.5 +/- 1.6mb at 62.4 GeV. The cross-section ratio between 200 GeV and 62.4 GeV is 4.4 +/- 0.6, less than is predicted by most theoretical models. It is, however, proportionally much larger than the previously observed 15% +/- 55% increase between 130 GeV and 200 GeV.
Published: 2012
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47. Energy and system-size dependence of two- and four-particle nu(2) measurements in heavy-ion collisions at root S-NN=62.4 and 200 GeV and their implications on flow fluctuations and nonflow

Author: AGAKISHIEV, G, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, CD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BEAVIS, DR, BEHERA, NK, BELLWIED, R, BETANCOURT, MJ, BETTS, RR, BHASIN, A, BHATI, AK, BICHSEL, H, BIELCIK, J, BIELCIKOVA, J, BLAND, LC, BORDYUZHIN, IG, BOROWSKI, W, BOUCHET, J, BRAIDOT, E, BRANDIN, AV, BRIDGEMAN, A, BROVKO, SG, BRUNA, E, BUELTMANN, S, BUNZAROV, I, BURTON, TP, CAI, XZ, CAINES, H, SANCHEZ, MCD, CEBRA, D, CENDEJAS, R, CERVANTES, MC, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, CHEN, JH, CHEN, JY, CHEN, L, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CODRINGTON, MJM, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, CUI, X, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DENG, J, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DONG, X, DRACHENBERG, JL, DRAPER, JE, DU, CM, DUNLOP, JC, EFIMOV, LG, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FATEMI, R, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GEURTS, F, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, OG, GROSNICK, D, GUPTA, A, GUPTA, S, GURYN, W, HAAG, B, HAJKOVA, O, HAMED, A, HAN, LX, HARRIS, JW, HAYS-WEHLE, JP, HEINZ, M, HEPPELMANN, S, HIRSCH, A, HOFFMANN, GW, HOFMAN, DJ, HUANG, B, HUANG, HZ, HUMANIC, TJ, HUO, L, IGO, G, JACOBS, WW, JENA, C, JIN, F, JOSEPH, J, JUDD, EG, KABANA, S, KANG, K, KAPITAN, J, KAUDER, K, KE, HW, KEANE, D, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KIZKA, V, KLEIN, SR, KNOSPE, AG, KOETKE, DD, KOLLEGGER, T, KONZER, J, KORALT, I, KOROLEVA, L, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, JH, LEIGHT, W, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, ZM, LIMA, LM, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LU, Y, LUKASHOV, EV, LUO, X, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, MATIS, HS, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MITROVSKI, MK, MOHAMMED, Y, MOHANTY, B, MONDAL, MM, MOROZOV, B, MOROZOV, DA, MUNHOZ, MG, MUSTAFA, MK, NAGLIS, M, NANDI, BK, NAYAK, TK, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OH, K, OHLSON, A, OKOROKOV, V, OLDAG, EW, OLIVEIRA, RAN, OLSON, D, PACHR, M, PAGE, BS, PAL, SK, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEI, H, PEITZMANN, T, PERKINS, C, PERYT, W, PILE, P, PLANINIC, M, PLUTA, J, PLYKU, D, POLJAK, N, PORTER, J, POSKANZER, AM, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, RANIWALA, S, REDWINE, R, REED, R, RITTER, HG, ROBERTS, JB, ROGACHEVSKIY, OV, ROMERO, JL, RUAN, L, RUSNAK, J, SAHOO, NR, SAKREJDA, I, SALUR, S, SANDWEISS, J, SANGALINE, E, SARKAR, A, SCHAMBACH, J, SCHARENBERG, RP, SCHAUB, J, SCHMAH, AM, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, SHAH, N, SHAHALIEV, E, SHAO, M, SHARMA, B, SHARMA, M, SHI, SS, SHOU, QY, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, SOLANKI, D, SORENSEN, P, DE SOUZA, UG, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STEADMAN, SG, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TLUSTY, D, TOKAREV, M, TRENTALANGE, S, TRIBBLE, RE, TRIBEDY, P, TRZECIAK, BA, TSAI, OD, ULLRICH, T, UNDERWOOD, DG, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, WANG, JS, WANG, Q, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, WIEMAN, H, WISSINK, SW, WITT, R, WITZKE, W, WU, YF, XIAO, Z, XIE, W, XU, H, XU, N, XU, QH, XU, W, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, ZAWISZA, M, ZBROSZCZYK, H, ZHAN, W, ZHANG, JB, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, F, ZHAO, J, ZHONG, C, ZHU, X, ZHU, YH, and ZOULKARNEEVA, Y
Subjects: Elliptic Flow, Relativistic Nuclear Collisions, Signature, Collaboration, Eccentricity Fluctuations
Abstract: We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulants nu(2) (nu(2){2} and nu(2){4}) for Au + Au and Cu + Cu collisions at center-of-mass energies root S-NN = 62.4 and 200 GeV. The difference between nu(2){2}(2) and nu(2){4}(2) is related to nu(2) fluctuations (sigma(nu 2)) and nonflow (delta(2)). We present an upper limit to sigma(nu 2)/nu 2. Following the assumption that eccentricity fluctuations sigma(epsilon) dominate nu(2) fluctuations nu(2)/sigma nu(2) approximate to epsilon/sigma epsilon we deduce the nonflow implied for several models of eccentricity fluctuations that would be required for consistency with nu(2){2} and nu(2){4}. We also present results on the ratio of nu(2) to eccentricity.
Published: 2012
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48. Measurement of the Bottom Quark Contribution to Nonphotonic Electron Production in p plus p Collisions at root s=200 GeV

Author: AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ALEKSEEV, I, ALFORD, J, ANDERSON, BD, ANSON, D, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, SAKREJDA, I, JONES, PG, JOSEPH, J, JUDD, EG, UNDERWOOD, DG, ZHOU, W, BIELCIKOVA, J, KABANA, S, BELLWIED, R, KAJIMOTO, K, KANG, K, KAPITAN, J, KAUDER, K, SAKUMA, T, KEANE, D, KECHECHYAN, A, ZHU, X, MA, GL, KETTLER, D, KIKOLA, DP, MATULENKO, YA, KIRYLUK, J, KISIEL, A, BETANCOURT, MJ, KIZKA, V, KLEIN, SR, SALUR, S, ZHU, YH, KNOSPE, AG, RAY, RL, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, MCDONALD, D, KORALT, I, KOROLEVA, L, KORSCH, W, ZOULKARNEEV, R, BETTS, RR, BRIDGEMAN, A, CAINES, H, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, MCSHANE, TS, ZOULKARNEEVA, Y, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, VAN BUREN, G, SANDWEISS, J, LAPOINTE, S, BHASIN, A, LAURET, J, LEBEDEV, A, LEDNICKY, R, MANGOTRA, LK, LEE, CH, LEE, JH, MESCHANIN, A, LEIGHT, W, VAN LEEUWEN, M, LEVINE, MJ, SANGALINE, E, LI, C, LI, L, LI, N, CHAJECKI, Z, BHATI, AK, LI, W, LI, X, LI, Y, VAN NIEUWENHUIZEN, G, MILNER, R, LI, ZM, LJUBICIC, T, LIN, G, CHALOUPKA, P, LIN, XY, LINDENBAUM, SJ, LISA, MA, LIU, F, BICHSEL, H, LIU, H, VANFOSSEN, JA, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, CHATTOPADHYAY, S, HEINZ, M, MITROVSKI, MK, GUPTA, A, MOHANTY, B, BIRITZ, B, MONDAL, MM, MOROZOV, B, VARMA, R, MOROZOV, DA, MUNHOZ, MG, ROSE, A, NANDI, BK, NATTRASS, C, SCHAMBACH, J, NAYAK, TK, NELSON, JM, GURYN, W, NETRAKANTI, PK, NG, MJ, VASCONCELOS, GMS, BLAND, LC, TRAINOR, TA, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, SCHARENBERG, RP, OKOROKOV, V, OLDAG, EW, OLSON, D, HAAG, B, HOFMAN, DJ, IGO, G, PACHR, M, PAGE, BS, PAL, SK, BONNER, BE, PANDIT, Y, PANEBRATSEV, Y, SCHMITZ, N, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, CHEN, HF, VASILIEV, AN, PERKINS, C, HAMED, A, PERYT, W, PHATAK, SC, PILE, P, PLANINIC, M, BOUCHET, J, SCHUSTER, TR, PLOSKON, MA, CHEN, JH, PLUTA, J, VIDEBAEK, F, PLYKU, D, POLJAK, N, POSKANZER, AM, HAN, LX, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, CHEN, JY, SEELE, J, PRUTHI, NK, REDWINE, R, BRAIDOT, E, PUJAHARI, PR, PUTSCHKE, J, QIU, H, RANIWALA, R, HARRIS, JW, RANIWALA, S, CHENG, J, SEGER, J, SELYUZHENKOV, I, SEYBOTH, P, BIELCIK, J, BRUNA, E, LLOPE, WJ, SHAHALIEV, E, BAUMGART, S, SHAO, M, SHARMA, M, CHERNEY, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, VIYOGI, YP, SKOBY, MJ, SMIRNOV, N, LONGACRE, RS, SORENSEN, P, BUELTMANN, S, CHIKANIAN, A, HEPPELMANN, S, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, VOKAL, S, STASZAK, D, STEVENS, JR, STOCK, R, LOVE, WA, MANWEILER, R, STRIKHANOV, M, STRINGFELLOW, B, SUAIDE, AAP, HIRSCH, A, BUNZAROV, I, SUAREZ, MC, SANCHEZ, MCD, SUBBA, NL, SUMBERA, M, SUN, XM, CHOI, KE, SUN, Y, LU, Y, SUN, Z, SURROW, B, SVIRIDA, DN, SYMONS, TJM, HJORT, E, VOLOSHIN, SA, DE TOLEDO, AS, BURTON, TP, CHRISTIE, W, TAKAHASHI, J, TANG, AH, TANG, Z, LUKASHOV, EV, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, WADA, M, TIAN, J, TRAM, VN, HOFFMAN, AM, TIMMINS, AR, TIMOSHENKO, S, CAI, XZ, TLUSTY, D, LUO, X, TOKAREV, M, WALKER, M, WANG, F, WANG, G, HAYS-WEHLE, JP, HUANG, B, REED, R, WANG, H, GROSNICK, D, WANG, JS, WANG, Q, WANG, XL, WANG, Y, CATU, O, WEBB, G, CHUNG, P, WEBB, JC, WESTFALL, GD, RITTER, HG, WHITTEN, C, HUANG, HZ, MA, YG, WIEMAN, H, WISSINK, SW, WITT, R, WU, YF, CLARKE, RF, XIE, W, XU, H, CEBRA, D, ROBERTS, JB, XU, N, XU, QH, XU, W, MAHAPATRA, DP, HUMANIC, TJ, XU, Y, JACOBS, P, XU, Z, XUE, L, YANG, Y, YEPES, P, BRANDIN, AV, YIP, K, YOO, IK, CENDEJAS, R, YUE, Q, MAJKA, R, CODRINGTON, MJM, ZAWISZA, M, HUO, L, ZBROSZCZYK, H, ZHAN, W, ZHANG, JB, ROGACHEVSKIY, OV, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, CORLISS, R, ZHANG, ZP, MALL, OI, CERVANTES, MC, ZHAO, J, BEAVIS, DR, ZHONG, C, ROMERO, JL, ZHOU, J, CRAMER, JG, CRAWFORD, HJ, DAS, D, MARGETIS, S, TRENTALANGE, S, DASH, S, LIU, J, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, JACOBS, WW, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, TRIBBLE, RE, DJAWOTHO, P, MARKERT, C, ROY, C, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, JENA, C, TSAI, OD, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, RUAN, L, MASUI, H, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, HOFFMANN, GW, EVDOKIMOV, O, FACHINI, P, JIN, F, FATEMI, R, SAHOO, R, FEDORISIN, J, MATIS, HS, FERSCH, RG, FILIP, P, FINCH, E, ULERY, J, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GANTI, MS, SAKAI, S, JONES, CL, GARCIA-SOLIS, EJ, GUERTIN, SM, GEROMITSOS, A, ULLRICH, T, and GEURTS, F
Subjects: High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment, Tomography
Abstract: The contribution of B meson decays to nonphotonic electrons, which are mainly produced by the semileptonic decays of heavy-flavor mesons, in p + p collisions at root s = 200 GeV has been measured using azimuthal correlations between nonphotonic electrons and hadrons. The extracted B decay contribution is approximately 50% at a transverse momentum of p(T) >= 5 GeV/c. These measurements constrain the nuclear modification factor for electrons from B and D meson decays. The result indicates that B meson production in heavy ion collisions is also suppressed at high p(T).
Published: 2010

49. gamma cross section in p plus p collisions at root s=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARNBY, LS, BAUMGART, S, BEAVIS, DR, GORDON, A, GREBENYUK, O, JACOBS, WW, JAKL, P, JENA, C, SAKUMA, T, JIN, F, BETTS, RR, JONES, CL, VAN LEEUWEN, M, ZOULKARNEEV, R, BLAND, LC, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, SALUR, S, KAPITAN, J, KAUDER, K, ZOULKARNEEVA, Y, MA, GL, KEANE, D, BHASIN, A, MATULENKO, YA, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, SANDWEISS, J, CHATTOPADHYAY, S, KNOSPE, AG, REED, R, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, KONZER, J, MCDONALD, D, BHATI, AK, KOPYTINE, M, KORALT, I, CHEN, HF, KORSCH, W, BUELTMANN, S, CATU, O, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, MCSHANE, TS, CHEN, JH, KURNADI, P, BICHSEL, H, LAMONT, MAC, VAN NIEUWENHUIZEN, G, SANGALINE, E, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, MANGOTRA, LK, LEE, CH, LEE, JH, MESCHANIN, A, LEIGHT, W, VANFOSSEN, JA, LEVINE, MJ, SCHAMBACH, J, BIELCIK, J, LI, C, LI, L, CHEN, JY, LI, N, LI, W, LI, X, LI, Y, VARMA, R, MILNER, R, LI, Z, LIU, H, LIN, G, CHENG, J, LINDENBAUM, SJ, BIELCIKOVA, J, LISA, MA, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, VASCONCELOS, GMS, MITROVSKI, MK, GUERTIN, SM, MOHANTY, B, CHERNEY, M, HAN, LX, BONNER, BE, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, VASILIEV, AN, NAYAK, TK, NELSON, JM, ROY, C, NETRAKANTI, PK, GUPTA, A, SCHARENBERG, RP, NG, MJ, NOGACH, LV, BOUCHET, J, NURUSHEV, SB, ODYNIEC, G, VIDEBAEK, F, OGAWA, A, TRENTALANGE, S, OKADA, H, OKOROKOV, V, OLSON, D, PACHR, M, SCHMITZ, N, GUPTA, N, PAGE, BS, PAL, SK, PANDIT, Y, HJORT, E, HUANG, HZ, BRAIDOT, E, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, SCHUSTER, TR, PERYT, W, GURYN, W, PHATAK, SC, CHIKANIAN, A, VIYOGI, YP, PILE, P, PLANINIC, M, PLOSKON, MA, BRANDIN, AV, PLUTA, J, PLYKU, D, POLJAK, N, SEELE, J, POSKANZER, AM, CHOI, KE, POTUKUCHI, BVKS, VOKAL, S, HAAG, B, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, PUJAHARI, PR, BRIDGEMAN, A, PUTSCHKE, J, CHRISTIE, W, SEGER, J, RANIWALA, R, REHBERG, JM, RANIWALA, S, RAY, RL, HALLMAN, TJ, REDWINE, R, SELYUZHENKOV, I, SEYBOTH, P, SHAHALIEV, E, CHUNG, P, BUNZAROV, I, LIU, J, SHAO, M, BIRITZ, B, BELLWIED, R, SHARMA, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, CLARKE, RF, SKOBY, MJ, SMIRNOV, N, SORENSEN, P, LJUBICIC, T, VOLOSHIN, SA, SOWINSKI, J, BURTON, TP, HARRIS, JW, SPINKA, HM, SRIVASTAVA, B, CODRINGTON, MJM, STANISLAUS, TDS, STASZAK, D, STEVENS, JR, STOCK, R, STRIKHANOV, M, WADA, M, LLOPE, WJ, STRINGFELLOW, B, SUAIDE, AAP, SUAREZ, MC, MANWEILER, R, HAYS-WEHLE, JP, CAI, XZ, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, CEBRA, D, SUN, Z, LONGACRE, RS, SURROW, B, CORLISS, R, SYMONS, TJM, DE TOLEDO, AS, TAKAHASHI, J, HEINZ, M, TANG, AH, CAINES, H, TANG, Z, WALKER, M, TARINI, LH, TARNOWSKY, T, COSENTINO, MR, LOVE, WA, THEIN, D, THOMAS, JH, TIAN, J, TIMMINS, AR, TIMOSHENKO, S, HEPPELMANN, S, TLUSTY, D, WANG, F, TOKAREV, M, TRIBBLE, RE, SANCHEZ, MCDB, TRAINOR, TA, LU, Y, TRAM, VN, WANG, G, WANG, H, WANG, JS, HOFFMAN, AM, RITTER, HG, WANG, Q, HAMED, A, GROSNICK, D, WANG, XL, WANG, Y, WEBB, G, WEBB, JC, CENDEJAS, R, WESTFALL, GD, WHITTEN, C, WIEMAN, H, ROBERTS, JB, CRAMER, JG, WINGFIELD, E, HOFFMANN, GW, MA, YG, WISSINK, SW, WITT, R, WU, Y, XIE, W, XU, N, XU, QH, CERVANTES, MC, CRAWFORD, HJ, ROGACHEVSKIY, OV, XU, W, XU, Y, XU, Z, MAHAPATRA, DP, HOFMAN, DJ, XUE, L, YANG, Y, YEPES, P, YIP, K, HUMANIC, TJ, YOO, IK, BRUNA, E, YUE, Q, ZAWISZA, M, CHAJECKI, Z, ZBROSZCZYK, H, MAJKA, R, ZHAN, W, HOLLIS, RS, ZHANG, S, DAS, D, ZHANG, WM, ZHANG, XP, ROMERO, JL, ZHANG, Y, ZHANG, ZP, ZHAO, J, ZHONG, C, ZHOU, J, MALL, OI, CHALOUPKA, P, DASH, S, ZHOU, W, BETANCOURT, MJ, ZHU, X, ROSE, A, ZHU, YH, LEYVA, AD, DE SILVA, LC, DEBBE, RR, MARGETIS, S, TSAI, OD, DEDOVICH, TG, LIU, F, DEPHILLIPS, M, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, HUO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, ULERY, J, DRACHENBERG, JL, MARKERT, C, RUAN, L, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, IGO, G, ULLRICH, T, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, SAHOO, R, MASUI, H, ESTIENNE, M, EUN, L, EVDOKIMOV, O, FACHINI, P, FATEMI, R, HIRSCH, A, FEDORISIN, J, FERSCH, RG, IORDANOVA, A, FILIP, P, SAKAI, S, FINCH, E, MATIS, HS, FINE, V, FISYAK, Y, GAGLIARDI, CA, UNDERWOOD, DG, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, GEROMITSOS, A, GEURTS, F, SAKREJDA, I, JACOBS, P, GHAZIKHANIAN, V, GRUBE, B, GHOSH, P, VAN BUREN, G, and GORBUNOV, YN
Subjects: Suppression, Nucleus-Nucleus Collisions, Resonances, Quark-Gluon Plasma, High Energy Physics::Experiment, J-Psi, Nuclear Experiment, Dimuon
Abstract: We report on a measurement of the gamma(1S + 2S + 3S) -> e(+)e(-) cross section at midrapidity in p + p collisions at root s = 200 GeV. We find the cross section to be 114 +/- 38(stat + fit)(-24)(+23)(syst) pb. Perturbative QCD calculations at next-to-leading order in the color evaporation model are in agreement with our measurement, while calculations in the color singlet model underestimate it by 2 sigma. Our result is consistent with the trend seen in world data as a function of the center-of-mass energy of the collision and extends the availability of gamma data to RHIC energies. The dielectron continuum in the invariant-mass range near the gamma is also studied to obtain a combined yield of e(+)e(-) pairs from the sum of the Drell-Yan process and b-(b) over bar production.
Published: 2010

50. Inclusive pi(0), eta, and direct photon production at high transverse momentum in p plus p and d plus Au collisions at root s(NN)=200 GeV

Author: ABELEV, BI, AGGARWAL, MM, AHAMMED, Z, ALAKHVERDYANTS, AV, ANDERSON, BD, ARKHIPKIN, D, AVERICHEV, GS, BALEWSKI, J, BARANNIKOVA, O, BARNBY, LS, BAUMGART, S, LISA, MA, LIU, F, LIU, H, LIU, J, LJUBICIC, T, LLOPE, WJ, LONGACRE, RS, LOVE, WA, LU, Y, BIELCIK, J, GROSNICK, D, MA, GL, MA, YG, MAHAPATRA, DP, MAJKA, R, MALL, OI, MANGOTRA, LK, MANWEILER, R, MARGETIS, S, MARKERT, C, MASUI, H, GRUBE, B, BIELCIKOVA, J, MATIS, HS, MATULENKO, YA, MCDONALD, D, MCSHANE, TS, MESCHANIN, A, MILNER, R, MINAEV, NG, MIODUSZEWSKI, S, MISCHKE, A, GUERTIN, SM, MITROVSKI, MK, BIRITZ, B, MOHANTY, B, MONDAL, MM, MOROZOV, DA, MUNHOZ, MG, NANDI, BK, NATTRASS, C, NAYAK, TK, NELSON, JM, GUPTA, A, NETRAKANTI, PK, NG, MJ, BLAND, LC, NOGACH, LV, NURUSHEV, SB, ODYNIEC, G, OGAWA, A, OKADA, H, OKOROKOV, V, OLSON, D, GUPTA, N, PACHR, M, PAGE, BS, PAL, SK, BONNER, BE, PANDIT, Y, PANEBRATSEV, Y, PAWLAK, T, PEITZMANN, T, PEREVOZTCHIKOV, V, PERKINS, C, GURYN, W, PERYT, W, PHATAK, SC, PILE, P, PLANINIC, M, BOUCHET, J, PLOSKON, MA, PLUTA, J, PLYKU, D, POLJAK, N, POSKANZER, AM, HAAG, B, POTUKUCHI, BVKS, POWELL, CB, PRINDLE, D, PRUNEAU, C, PRUTHI, NK, BRAIDOT, E, PUJAHARI, PR, PUTSCHKE, J, RANIWALA, R, RANIWALA, S, HALLMAN, TJ, RAY, RL, REDWINE, R, REED, R, REHBERG, JM, RITTER, HG, ROBERTS, JB, BRANDIN, AV, ROGACHEVSKIY, OV, ROMERO, JL, ROSE, A, HAMED, A, ROY, C, RUAN, L, RUSSCHER, MJ, SAHOO, R, SAKAI, S, SAKREJDA, I, SAKUMA, T, BRIDGEMAN, A, SALUR, S, SANDWEISS, J, HAN, LX, SANGALINE, E, SCHAMBACH, J, SCHARENBERG, RP, SCHMITZ, N, SCHUSTER, TR, SEELE, J, SEGER, J, SELYUZHENKOV, I, BRUNA, E, SEYBOTH, P, BEAVIS, DR, SHAHALIEV, E, SHAO, M, SHARMA, M, SHI, SS, SICHTERMANN, EP, SIMON, F, SINGARAJU, RN, SKOBY, MJ, SMIRNOV, N, BUELTMANN, S, HARRIS, JW, SORENSEN, P, SOWINSKI, J, SPINKA, HM, SRIVASTAVA, B, STANISLAUS, TDS, STASZAK, D, STEVENS, JR, STOCK, R, STRIKHANOV, M, STRINGFELLOW, B, HAYS-WEHLE, JP, BUNZAROV, I, SUAIDE, AAP, SUAREZ, MC, SUBBA, NL, SUMBERA, M, SUN, XM, SUN, Y, SUN, Z, SURROW, B, SYMONS, TJM, HEINZ, M, DE TOLEDO, AS, BURTON, TP, TAKAHASHI, J, TANG, AH, TANG, Z, TARINI, LH, TARNOWSKY, T, THEIN, D, THOMAS, JH, TIAN, J, HEPPELMANN, S, TIMMINS, AR, TIMOSHENKO, S, CAI, XZ, TLUSTY, D, TOKAREV, M, TRAINOR, TA, TRAM, VN, TRENTALANGE, S, TRIBBLE, RE, TSAI, OD, HIRSCH, A, ULERY, J, ULLRICH, T, UNDERWOOD, DG, CAINES, H, VAN BUREN, G, VAN NIEUWENHUIZEN, G, VANFOSSEN, JA, VARMA, R, VASCONCELOS, GMS, VASILIEV, AN, HJORT, E, VIDEBAEK, F, VIYOGI, YP, VOKAL, S, VOLOSHIN, SA, SANCHEZ, MCD, WADA, M, WALKER, M, WANG, F, WANG, G, WANG, H, HOFFMAN, AM, WANG, JS, WANG, Q, WANG, X, WANG, XL, WANG, Y, CATU, O, WEBB, G, WEBB, JC, WESTFALL, GD, WHITTEN, C, HOFFMANN, GW, WIEMAN, H, WINGFIELD, E, WISSINK, SW, WITT, R, WU, Y, XIE, W, CEBRA, D, XU, N, XU, QH, XU, W, HOFMAN, DJ, XU, Y, XU, Z, XUE, L, YANG, Y, YEPES, P, YIP, K, YOO, IK, CENDEJAS, R, YUE, Q, ZAWISZA, M, HOLLIS, RS, ZBROSZCZYK, H, ZHAN, W, ZHANG, S, ZHANG, WM, ZHANG, XP, ZHANG, Y, ZHANG, ZP, ZHAO, J, CERVANTES, MC, ZHONG, C, BELLWIED, R, ZHOU, J, ZHOU, W, ZHU, X, ZHU, YH, ZOULKARNEEV, R, ZOULKARNEEVA, Y, CHAJECKI, Z, CHALOUPKA, P, CHATTOPADHYAY, S, CHEN, HF, HUANG, HZ, CHEN, JH, CHEN, JY, CHENG, J, CHERNEY, M, CHIKANIAN, A, CHOI, KE, CHRISTIE, W, CHUNG, P, CLARKE, RF, CODRINGTON, MJM, HUMANIC, TJ, CORLISS, R, CRAMER, JG, CRAWFORD, HJ, DAS, D, DASH, S, LEYVA, AD, DE SILVA, LC, DEBBE, RR, DEDOVICH, TG, DEPHILLIPS, M, HUO, L, DEREVSCHIKOV, AA, DE SOUZA, RD, DIDENKO, L, DJAWOTHO, P, DOGRA, SM, DONG, X, DRACHENBERG, JL, DRAPER, JE, DUNLOP, JC, MAZUMDAR, MRD, IGO, G, EFIMOV, LG, ELHALHULI, E, ELNIMR, M, ENGELAGE, J, EPPLEY, G, ERAZMUS, B, ESTIENNE, M, EUN, L, FACHINI, P, FATEMI, R, IORDANOVA, A, FEDORISIN, J, FERSCH, RG, FILIP, P, FINCH, E, FINE, V, FISYAK, Y, GAGLIARDI, CA, GANGADHARAN, DR, GANTI, MS, GARCIA-SOLIS, EJ, JACOBS, P, GEROMITSOS, A, GEURTS, F, GHAZIKHANIAN, V, GHOSH, P, GORBUNOV, YN, GORDON, A, GREBENYUK, O, JACOBS, WW, JAKL, P, JENA, C, JIN, F, BENEDOSSO, F, JONES, CL, JONES, PG, JOSEPH, J, JUDD, EG, KABANA, S, KAJIMOTO, K, KANG, K, KAPITAN, J, KAUDER, K, KEANE, D, BETANCOURT, MJ, KECHECHYAN, A, KETTLER, D, KIKOLA, DP, KIRYLUK, J, KISIEL, A, KLEIN, SR, KNOSPE, AG, KOCOLOSKI, A, KOETKE, DD, KOLLEGGER, T, BETTS, RR, KONZER, J, KOPYTINE, M, KORALT, I, KORSCH, W, KOTCHENDA, L, KOUCHPIL, V, KRAVTSOV, P, KRUEGER, K, KRUS, M, KUMAR, L, BHASIN, A, KURNADI, P, LAMONT, MAC, LANDGRAF, JM, LAPOINTE, S, LAURET, J, LEBEDEV, A, LEDNICKY, R, LEE, CH, LEE, JH, LEIGHT, W, BHATI, AK, LEVINE, MJ, LI, C, LI, L, LI, N, LI, W, LI, X, LI, Y, LI, Z, LIN, G, BICHSEL, H, and LINDENBAUM, SJ
Subjects: D+Au Collisions, Barrel Electromagnetic Calorimeter, Star, Fragmentation, Physics, Time Projection Chamber, Heavy-Ion Collisions, Distributions, High Energy Physics::Experiment, Leading Order, Hadron-Production, Nuclear Experiment
Abstract: We report a measurement of high-p(T) inclusive pi(0), eta, and direct photon production in p + p and d + Au collisions at root s(NN) = 200 GeV at midrapidity (0 < eta < 1). Photons from the decay pi(0) -> gamma gamma were detected in the barrel electromagnetic calorimeter of the STAR experiment at the Relativistic Heavy Ion Collider. The eta -> gamma gamma decay was also observed and constituted the first eta measurement by STAR. The first direct photon cross-section measurement by STAR is also presented; the signal was extracted statistically by subtracting the pi(0), eta, and omega(782) decay background from the inclusive photon distribution observed in the calorimeter. The analysis is described in detail, and the results are found to be in good agreement with earlier measurements and with next-to-leading-order perturbative QCD calculations.
Published: 2010

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