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1. Deciphering yield modification of hadron-triggered semi-inclusive recoil jets in heavy-ion collisions

Author: Yang He, Maowu Nie, Shanshan Cao, Rongrong Ma, Li Yi, and Helen Caines
Subjects: Relativistic heavy-ion collisions, Quark-gluon plasma, Jet quenching, Surface bias, Semi-inclusive recoil jets, Physics, QC1-999
Abstract: In relativistic heavy-ion collisions, a hot and dense state of matter, called the Quark-Gluon Plasma (QGP), is produced. Semi-inclusive jets recoiling from trigger hadrons of high transverse momenta (pT) can serve as an effective probe of the QGP properties, as they are expected to experience jet quenching when traversing the QGP. Recent experimental results on the ratio of recoil jet yields normalized by the trigger counts in heavy-ion collisions to that in p+p collisions (IAA) pose an unexpected challenge in its interpretation. It is observed that IAA rises with the jet pT and possibly exceeds unity at high pT, while traditionally it is expected that jet quenching would lead to IAA
Published: 2024
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2. Impact of nuclear structure on longitudinal flow decorrelations in high-energy isobar collisions

Author: Maowu Nie, Chunjian Zhang, Zhenyu Chen, Li Yi, and Jiangyong Jia
Subjects: Physics, QC1-999
Abstract: Fluctuations of harmonic flow along pseudorapidity, known as flow decorrelations, are an important probe of the initial state geometry of the quark-gluon plasma. The flow decorrelations are shown to be sensitive to the collective structure of the colliding nuclei, as revealed clearly by comparing 96Ru+96Ru collisions and 96Zr+96Zr collisions, which have different nuclear structures. The flow decorrelations in central collisions are mostly sensitive to nuclear deformations, while those in the mid-central collisions are primarily sensitive to differences in skin thickness between 96Ru and 96Zr. Longitudinal flow decorrelations in heavy-ion collisions are a new tool to probe the structure of colliding nuclei.
Published: 2023
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3. Longitudinal eccentricity decorrelations in heavy-ion collisions

Author: Arabinda Behera, Maowu Nie, and Jiangyong Jia
Subjects: Physics, QC1-999
Abstract: In heavy-ion collisions, the harmonic flow V_{n} of final-state particles is driven by the eccentricity vector E_{n} that describes the shape of the initial fireball projected in the transverse plane. It was realized recently that the structure and shape of the fireball, and consequently the E_{n}, fluctuate along pseudorapidity η in a single event, E_{n}(η). This leads to eccentricity decorrelation between different η, driving the longitudinal flow decorrelations observed in the experiments. Using a Glauber model with a parametrized longitudinal structure, we have estimated the eccentricity decorrelations and related them to the measured flow decorrelation coefficients for elliptic flow n=2 and triangular flow n=3. We investigated the dependence of eccentricity decorrelations on the choice of collision system in terms of the size, asymmetry, and deformation of the nuclei. We found that these nuclear geometry effects lead to significant and characteristic patterns on the eccentricity decorrelations, which describe the measured ratios of the flow decorrelations between Xe+Xe and Pb+Pb collisions. These patterns can be searched for using existing experimental data at the Relativistic Heavy-Ion Collider and the large Hadron collider, and if confirmed, they will provide a means to improve our understanding of the initial state of the heavy-ion collisions.
Published: 2020
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4. Invariant jet mass measurements in pp collisions at s=200 GeV at RHIC

Author: A. Pandav, Z. Ye, Maowu Nie, Xiaoyu Liu, Muhammad Usman Ashraf, Li Yi, X. Huang, A. Kechechyan, G. Agakishiev, J. H. Thomas, D. Cebra, T. Nonaka, M. M. Mondal, E. G. Judd, Zhanwen Zhu, P. Kravtsov, W. Guryn, R. Lacey, W. J. Llope, C. Zhou, F-H. Chang, R. Kunnawalkam Elayavalli, Yunlan Ji, Sergey Voloshin, Xinyue Ju, L. V. Nogach, N. Xu, P. Filip, R. Nishitani, A. Ewigleben, L. S. Pinsky, Alexander Jentsch, A. Attri, R. Seto, Y. Huang, G. D. Westfall, A. Gupta, P. Seyboth, J. Fedorisin, M. Tokarev, K. Yip, J. S. Wang, P. Bhagat, C. Racz, J. B. Singh, S. Kumar, F. G. Atetalla, O. D. Tsai, Vitaly Okorokov, K. Jiang, Y. Wang, C. Fu, A. Dhamija, J. K. Adkins, R. Fatemi, G. S. Averichev, Guannan Xie, Xuan Zhang, I. G. Alekseev, M. A. Lisa, T. G. Dedovich, P. C. Weidenkaff, D. Kincses, H. Z. Huang, V. Verkest, S. Vokal, Wei Xie, X. Chu, W. He, J. D. Nam, F. Videbæk, M. J. Skoby, Frank Jm Geurts, Audrey Francisco, T. Galatyuk, K. Gopal, R. S. Longacre, A. Aparin, Hanna Paulina Zbroszczyk, Daniel Nemes, J. D. Brandenburg, A. Gibson, P. Szymanski, T. D. S. Stanislaus, B. K. Chan, Michal Sumbera, Sukalyan Chattopadhyay, A. A. P. Suaide, Catherine Tomkiel, J. Rusnak, I. Upsal, Jan Vanek, J. Porter, L. Didenko, H. H. Wieman, Leszek Adamczyk, L. Di Carlo, Bernd Surrow, David Stewart, Chitrasen Jena, M. L. Kabir, S. W. Wissink, D. Neff, Y. Zhang, E. C. Aschenauer, Diana Pawlowska, A. G. Knospe, L. Ruan, J. H. Chen, C. J. Feng, Rajarshi Ray, Ivan Kisel, J. M. Butterworth, W. Zha, N. Schmitz, Sevil Salur, A. K. Pandey, B. Pawlik, Y. Li, J. C. Webb, E. Shahaliev, C. Yang, D. Shen, S. Margetis, M. Csanad, Z. J. Zhang, R. Reed, K. N. Barish, Y. Yang, T. Todoroki, J. R. Adams, Y. F. Xu, Xiangming Sun, B. Xi, P. Federic, A. Mukherjee, Susumu Sato, N. Elsey, P. V. Shanmuganathan, G. Ponimatkin, Hua Pei, N. Magdy, Lukas Holub, Bedangadas Mohanty, S. K. Tripathy, D. A. Morozov, Nilay Shah, Hao Qiu, W. Solyst, D. Keane, J. Putschke, Xiaofeng Zhu, Ying Liang, X. Dong, T. Tarnowsky, M. I. Nagy, Y. F. Wu, D. G. Underwood, S. Zhang, A. V. Brandin, B. R. Pokhrel, W. Christie, N. K. Pruthi, E. Loyd, F. M. Fawzi, N. Raha, Z. Chang, Z. Liu, K. Kauder, A. Taranenko, W. Baker, Zebo Tang, D. Kapukchyan, A. Ogawa, W. B. Schmidke, A. S. Nunes, Zhigang Xiao, T. Huang, H. Harrison, C. A. Gagliardi, S. Lan, Vipul Bairathi, Yunpeng Liu, Y. Han, Y. Söhngen, D. Kalinkin, Irakli Chakaberia, Jiangyong Jia, S. Heppelmann, J. Cheng, B. J. Summa, J. Wu, A. A. Derevschikov, F. Seck, H. Liu, N. G. Minaev, H. Sako, Peng Liu, Y. Panebratsev, Saehanseul Oh, D. Grosnick, M. Posik, Arabinda Behera, C-Q. Li, B. Kimelman, Qi Yang, Zuojia Wang, Q. H. Xu, P. Parfenov, C. Perkins, Jana Bielcikova, Zhenyu Chen, H. M. Spinka, Isaac Mooney, J. L. Romero, Madan M. Aggarwal, Fuqiang Wang, Subhash Singha, Z. W. Sweger, Somnath Choudhury, S. Harabasz, D. Isenhower, D. N. Svirida, Benjamin Schweid, Christina Markert, T. J. Humanic, Lukas Kramarik, A. Hamed, Sooraj Krishnan Radhakrishnan, Y. He, E. Finch, Andrey Vasiliev, X. C. Chen, Z. Z. Xu, H. S. Matis, O. Eyser, G. Eppley, M. Chevalier, Nikita Smirnov, K. Nayak, P. Sorensen, J. Pluta, Joseph Kwasizur, M. Shao, G. Van Buren, Alexander Kiselev, T. Shao, X. Gou, L. K. Kosarzewski, Robert Licenik, W. W. Jacobs, Anthony Robert Timmins, M. Zyzak, N. Chankova-Bunzarova, W. Li, Skipper Kagamaster, Jongmin Lee, D. Zhang, R. Ma, S. Esumi, S. S. Shi, Roland Laszlo Pinter, H. J. Crawford, X.G. Li, Rene Bellwied, J. Lauret, R. E. Tribble, P. Chaloupka, Y. Fisyak, J. M. Nelson, Ting Lin, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, I. Aggarwal, J. G. Ball Cap, T. Ljubicic, X. H. He, Jize Zhao, S. Trentalange, Y. Lin, Y. G. Ma, Jing-Han Chen, Lin Ma, H. Caines, Janet Elizabeth Seger, Z. Tu, A. Quintero, Jaroslav Bielcik, E. P. Sichtermann, Maria Stefaniak, Y. Hu, O. V. Rogachevskiy, S. Fazio, Zongye Zhang, V. Prozorova, I. G. Bordyuzhin, M. S. Abdallah, I. M. Deppner, T. Ullrich, G. Wang, C. C. Zhang, X. Z. Cai, H. S. Xu, X. M. Sun, M. S. Daugherity, Anju Bhasin, H. W. Ke, M. D. Harasty, L. Fulek, N. Herrmann, N. Ghimire, K. Kang, T. Niida, Chong Kim, Ashik Ikbal Sheikh, Donald M. Anderson, H. G. Ritter, A. Lebedev, E. Hoffman, Rafal Sikora, F. Liu, Miroslav Simko, Mariusz Przybycien, J. W. Harris, Md. Nasim, N. S. Lukow, R. D. Majka, J. L. Drachenberg, X. G. Luo, A. H. Tang, Pengdong Wang, I. Bunzarov, M. Calderon De La Barca Sanchez, A. I. Hamad, M. Robotkova, Dukhishyam Mallick, Lokesh Kumar, Jaroslav Adam, Y. H. Leung, X. Liang, Y. Yu, R. Witt, S. Mioduszewski, Prithwish Tribedy, B. K. Srivastava, Shengli Huang, J. C. Dunlop, L. Wen, Zubayer Ahammed, Q. Y. Shou, R. Pak, Olga Evdokimov, Barbara Antonina Trzeciak, Maria Zurek, Yicheng Feng, Y. Shi, J. Engelage, G. Nigmatkulov, J. M. Landgraf, D. Chen, M. Strikhanov, G. Odyniec, J. Sandweiss, Joel Anthony Mazer, S. He, D. Tlusty, Niladribihari Sahoo, Tong Liu, M. Sergeeva, T. Truhlar, B. S. Page, Avishek Chatterjee, D. P. Kikola, B. Stringfellow, I. Vassiliev, Y. J. Sun, and S. Kabana
Subjects: Physics, Particle physics, Jet (fluid), Chatterjee, Transverse momentum, Perturbative QCD, Invariant (mathematics)
Abstract: Author(s): Abdallah, MS; Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, I; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A; Aschenauer, EC; Ashraf, MU; Atetalla, FG; Attri, A; Averichev, GS; Bairathi, V; Baker, W; Ball Cap, JG; Barish, K; Behera, A; Bellwied, R; Bhagat, P; Bhasin, A; Bielcik, J; Bielcikova, J; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Bunzarov, I; Butterworth, J; Cai, XZ; Caines, H; De La Barca Sanchez, MC; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, D; Chen, J; Chen, JH; Chen, X; Chen, Z; Cheng, J; Chevalier, M; Choudhury, S; Christie, W; Chu, X; Crawford, HJ; Csanad, M; Daugherity, M; Dedovich, TG; Deppner, IM; Derevschikov, AA; Dhamija, A; Di Carlo, L; Didenko, L; Dong, X; Drachenberg, JL; Dunlop, JC; Elsey, N; Engelage, J; Eppley, G; Esumi, S; Evdokimov, O; Ewigleben, A; Eyser, O; Fatemi, R; Fawzi, FM; Fazio, S; Federic, P; Fedorisin, J; Feng, CJ; Feng, Y; Filip, P; Finch, E; Fisyak, Y; Francisco, A; Fu, C | Abstract: We present the first inclusive measurements of the invariant and softdrop jet mass in proton-proton collisions at s=200 GeV at STAR. The measurements are fully corrected for detector effects, and reported differentially in both the jet transverse momentum and jet radius parameter. We compare the measurements to established leading-order Monte Carlo event generators and find that STAR-tuned pythia-6 reproduces the data, while LHC tunes of pythia-8 and herwig-7 do not agree with the data, providing further constraints on parameter tuning. Finally, we observe that softdrop grooming, for which the contribution of wide-angle nonperturbative radiation is suppressed, shifts the jet mass distributions into closer agreement with the partonic jet mass as determined by both pythia-8 and a next-to-leading-logarithmic accuracy perturbative QCD calculation. These measurements complement recent LHC measurements in a different kinematic region, as well as establish a baseline for future jet mass measurements in heavy-ion collisions at RHIC.
Published: 2021

5. Cumulants and correlation functions of net-proton, proton, and antiproton multiplicity distributions in Au+Au collisions at energies available at the BNL Relativistic Heavy Ion Collider

Author: G. Eppley, Y. Yu, J. Porter, R. Witt, M. Chevalier, M. Tokarev, S. Mioduszewski, J. Pluta, M. Zyzak, F. Liu, Miroslav Simko, A. Pandav, Ivan Kisel, Mariusz Przybycien, N. Chankova-Bunzarova, W. Li, Jongmin Lee, P. Szymanski, Z. J. Zhang, Prithwish Tribedy, R. Ma, B. K. Srivastava, Skipper Kagamaster, T. D. S. Stanislaus, Shengli Huang, H. H. Wieman, Joel Anthony Mazer, Z. Yang, Rene Bellwied, Md. Nasim, R. D. Majka, J. L. Drachenberg, M. Calderon De La Barca Sanchez, A. I. Hamad, S. He, R. E. Tribble, Y. Fisyak, D. Tlusty, J. G. Ball Cap, T. Ljubicic, I. Vassiliev, Lin Ma, W. Christie, Jize Zhao, X. H. He, M. Robotkova, N. Raha, R. S. Longacre, Y. Lin, J. K. Adkins, D. Kalinkin, Niladribihari Sahoo, Tong Liu, H. Caines, Subhash Singha, Andrey Vasiliev, Zhigang Xiao, T. Huang, Yunpeng Liu, A. Quintero, N. G. Minaev, J. H. Thomas, B. Kimelman, R. Kunnawalkam Elayavalli, Dukhishyam Mallick, M. L. Kabir, Jiangyong Jia, S. Heppelmann, B. J. Summa, X.G. Li, Yunlan Ji, G. Wang, R. Fatemi, Z. Ye, Janet Elizabeth Seger, J. C. Dunlop, L. Wen, Maria Stefaniak, Maowu Nie, X. Huang, R. Seto, A. Kechechyan, Y. Huang, Isaac Mooney, F-H. Chang, S. Harabasz, I. M. Deppner, A. Gibson, J. B. Singh, B. Pawlik, M. D. Harasty, N. Herrmann, I. Upsal, D. Shen, Zubayer Ahammed, M. Sergeeva, J. Engelage, T. Truhlar, T. Nonaka, W. Guryn, R. Lacey, R. Nishitani, S. Kumar, O. Eyser, E. P. Sichtermann, G. Nigmatkulov, Anju Bhasin, Zebo Tang, P. Seyboth, L. Di Carlo, A. K. Pandey, Y. Li, J. M. Landgraf, V. Prozorova, S. Zhang, K. Kauder, A. Taranenko, G. S. Averichev, K. N. Barish, J. Fedorisin, B. Xi, Xiangming Sun, Q. Y. Shou, P. V. Shanmuganathan, T. Tarnowsky, T. G. Dedovich, F. G. Atetalla, K. Kang, T. Niida, F. M. Fawzi, Z. Chang, D. Chen, A. Lebedev, Jan Vanek, Leszek Adamczyk, J. M. Butterworth, X. Z. Cai, X. M. Sun, J. C. Webb, A. A. Derevschikov, R. Pak, Qi Yang, Daniel Nemes, Zuojia Wang, Q. H. Xu, S. Lan, M. I. Nagy, Y. F. Wu, Olga Evdokimov, Barbara Antonina Trzeciak, F. Seck, C. Racz, M. Strikhanov, Hua Pei, S. K. Tripathy, M. S. Abdallah, Alexander Kiselev, X. Gou, Muhammad Usman Ashraf, T. Ullrich, W. Zha, O. D. Tsai, C. Yang, Susumu Sato, N. K. Pruthi, Hao Qiu, W. Solyst, A. S. Nunes, H. Z. Huang, V. Verkest, S. Vokal, Audrey Francisco, P. Federic, Maria Zurek, B. S. Page, Avishek Chatterjee, D. P. Kikola, B. Stringfellow, M. S. Daugherity, H. W. Ke, L. Fulek, J. R. Adams, C. Perkins, W. Baker, C. C. Zhang, H. S. Xu, W. He, J. D. Brandenburg, Madan M. Aggarwal, M. Posik, Arabinda Behera, H. M. Spinka, Fuqiang Wang, Z. W. Sweger, Lokesh Kumar, Jaroslav Adam, Y. H. Leung, D. G. Underwood, X. Liang, Somnath Choudhury, J. W. Harris, P. Chaloupka, Ting Lin, Sergey Voloshin, Xinyue Ju, L. Didenko, P. C. Weidenkaff, L. V. Nogach, N. Ghimire, Yicheng Feng, Y. Shi, Shangfeng Yang, D. Kapukchyan, N. S. Lukow, P. Parfenov, J. H. Chen, K. Gopal, C. J. Feng, Rajarshi Ray, Y. Han, S. Trentalange, J. Cheng, J. Wu, Y. J. Sun, H. Liu, P. Sorensen, C. Fu, D. A. Morozov, A. Dhamija, Chong Kim, X. G. Luo, X. C. Chen, E. C. Aschenauer, G. Agakishiev, H. Sako, Joseph Kwasizur, Ashik Ikbal Sheikh, K. Jiang, D. Cebra, Y. Wang, S. Kabana, A. H. Tang, Pengdong Wang, S. Margetis, M. Shao, G. Van Buren, Benjamin Schweid, T. J. Humanic, David Stewart, Robert Licenik, Jana Bielcikova, Anthony Robert Timmins, A. Hamed, S. S. Shi, J. L. Romero, T. Shao, X. Dong, Donald M. Anderson, H. G. Ritter, I. Bunzarov, D. Zhang, Sevil Salur, Zhanwen Zhu, Lukas Kramarik, Roland Laszlo Pinter, H. J. Crawford, J. M. Nelson, S. Esumi, Sooraj Krishnan Radhakrishnan, M. J. Skoby, Frank Jm Geurts, T. Galatyuk, Y. He, E. Finch, E. Hoffman, Rafal Sikora, Peng Liu, Y. G. Ma, Jing-Han Chen, I. G. Alekseev, M. A. Lisa, Y. Panebratsev, Saehanseul Oh, D. Grosnick, I. Aggarwal, Wei Xie, J. D. Nam, Y. F. Xu, D. Isenhower, A. Aparin, Z. Z. Xu, Jaroslav Bielcik, Nikita Smirnov, K. Nayak, Y. Söhngen, N. Schmitz, A. G. Knospe, E. Shahaliev, D. N. Svirida, D. Keane, Y. Hu, H. Harrison, O. V. Rogachevskiy, Vitaly Okorokov, Bernd Surrow, A. Mukherjee, N. Elsey, W. B. Schmidke, C. A. Gagliardi, W. J. Llope, C. Zhou, Alexander Jentsch, A. Attri, P. Bhagat, Guannan Xie, Xuan Zhang, Hanna Paulina Zbroszczyk, R. Reed, B. R. Pokhrel, G. Odyniec, J. Sandweiss, M. Csanad, J. Putschke, Xiaofeng Zhu, Ying Liang, A. Ogawa, C-Q. Li, A. V. Brandin, N. Xu, P. Filip, G. D. Westfall, A. Gupta, Christina Markert, X. Chu, J. Rusnak, H. S. Matis, L. Ruan, T. Todoroki, F. Videbæk, Vipul Bairathi, L. K. Kosarzewski, Irakli Chakaberia, W. W. Jacobs, Sukalyan Chattopadhyay, J. Lauret, B. K. Chan, Michal Sumbera, A. A. P. Suaide, Zhenyu Chen, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, Z. Tu, Catherine Tomkiel, Chitrasen Jena, A. Ewigleben, L. S. Pinsky, K. Yip, J. S. Wang, S. Fazio, Zongye Zhang, Diana Pawlowska, S. W. Wissink, D. Neff, I. G. Bordyuzhin, Y. Zhang, D. Kincses, Xiaoyu Liu, Y. Yang, G. Ponimatkin, Nilay Shah, Li Yi, M. M. Mondal, E. G. Judd, P. Kravtsov, N. Magdy, Lukas Holub, Bedangadas Mohanty, E. Loyd, and Z. Liu
Subjects: Physics, Nuclear physics, Fourth order, Proton, Antiproton, Rapidity, Multiplicity (mathematics), Net (mathematics), Relativistic Heavy Ion Collider, Beam energy
Abstract: Author(s): Abdallah, MS; Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, I; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A; Aschenauer, EC; Ashraf, MU; Atetalla, FG; Attri, A; Averichev, GS; Bairathi, V; Baker, W; Ball Cap, JG; Barish, K; Behera, A; Bellwied, R; Bhagat, P; Bhasin, A; Bielcik, J; Bielcikova, J; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Bunzarov, I; Butterworth, J; Cai, XZ; Caines, H; Calderon De La Barca Sanchez, M; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, D; Chen, J; Chen, JH; Chen, X; Chen, Z; Cheng, J; Chevalier, M; Choudhury, S; Christie, W; Chu, X; Crawford, HJ; Csanad, M; Daugherity, M; Dedovich, TG; Deppner, IM; Derevschikov, AA; Dhamija, A; Di Carlo, L; Didenko, L; Dong, X; Drachenberg, JL; Dunlop, JC; Elsey, N; Engelage, J; Eppley, G; Esumi, S; Evdokimov, O; Ewigleben, A; Eyser, O; Fatemi, R; Fawzi, FM; Fazio, S; Federic, P; Fedorisin, J; Feng, CJ; Feng, Y; Filip, P; Finch, E; Fisyak, Y; Francisco, A; Fu, C | Abstract: We report a systematic measurement of cumulants, Cn, for net-proton, proton, and antiproton multiplicity distributions, and correlation functions, κn, for proton and antiproton multiplicity distributions up to the fourth order in Au+Au collisions at sNN=7.7, 11.5, 14.5, 19.6, 27, 39, 54.4, 62.4, and 200 GeV. The Cn and κn are presented as a function of collision energy, centrality and kinematic acceptance in rapidity, y, and transverse momentum, pT. The data were taken during the first phase of the Beam Energy Scan (BES) program (2010-2017) at the BNL Relativistic Heavy Ion Collider (RHIC) facility. The measurements are carried out at midrapidity (|y|l 0.5) and transverse momentum 0.4
Published: 2021

6. Collective flow in ultra high energy cosmic rays within CORSIKA

Author: Cunfeng Feng, Maowu Nie, Hengying Zhang, Li Yi, and Zhangbu Xu
Subjects: Quantum chromodynamics, Physics, Muon, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Astrophysics::Instrumentation and Methods for Astrophysics, Charged particle, law.invention, Nuclear physics, Air shower, Observatory, law, Ultra-high-energy cosmic ray, Nuclear Experiment, Collider
Abstract: In heavy ion collisions, the main goal is to create the quark-gluon plasma (QGP) and then study its properties in order to understand quantum chromodynamics at extreme conditions. Collective flow serves as an important probe to study the production and characterize the property of the QGP. In ultra high energy cosmic rays (UHECR), the collision energies can be easily achieved as the current collider experiment. It is naturally to believe the QGP to be created in UHECR collisions. In this work, collective flow are analytically studied within CORSIKA model, with EPOS-LHC for high energy hadronic interaction. The results suggest the collective flow still holds for all charged particles, further study indicates the collective flow of muons are much larger than inclusive charged particles. It seems promising that we can measure the collectivity of muons to search for QGP in UHECR. It can be tested at China’s large high altitude air shower observatory (LHAASO) experiments.
Published: 2021

7. Azimuthal anisotropy measurements of strange and multistrange hadrons in U+U collisions at sNN=193 GeV at the BNL Relativistic Heavy Ion Collider

Author: C. Racz, W. J. Llope, C. Zhou, H. Z. Huang, V. Verkest, S. Vokal, A. V. Brandin, F. M. Fawzi, Z. Chang, Audrey Francisco, Alexander Jentsch, Vipul Bairathi, Z. Ye, S. Lan, Irakli Chakaberia, A. Attri, F. Seck, P. Bhagat, Maowu Nie, Shangfeng Yang, Muhammad Usman Ashraf, X. Huang, J. H. Chen, C. J. Feng, Rajarshi Ray, A. Kechechyan, Vitaly Okorokov, Zhenyu Chen, Sergey Voloshin, Xinyue Ju, M. Posik, T. Nonaka, Arabinda Behera, Bernd Surrow, D. Keane, Daniel Nemes, A. Mukherjee, N. Elsey, D. A. Morozov, H. M. Spinka, Z. W. Sweger, Somnath Choudhury, J. W. Harris, N. S. Lukow, K. Jiang, Zhigang Xiao, Y. Wang, T. Huang, Yunpeng Liu, N. G. Minaev, B. Kimelman, W. Baker, J. Engelage, G. Nigmatkulov, M. Tokarev, B. R. Pokhrel, W. B. Schmidke, H. Harrison, F. G. Atetalla, O. D. Tsai, N. Ghimire, N. Magdy, Lukas Holub, Bedangadas Mohanty, J. H. Thomas, J. M. Landgraf, N. Xu, P. Filip, X. G. Luo, G. D. Westfall, W. He, S. Fazio, Zongye Zhang, P. Szymanski, T. D. S. Stanislaus, I. G. Alekseev, H. H. Wieman, M. A. Lisa, Yunlan Ji, I. G. Bordyuzhin, A. H. Tang, Pengdong Wang, A. Ewigleben, W. Zha, C. A. Gagliardi, J. D. Brandenburg, Y. Yu, X. C. Chen, P. C. Weidenkaff, K. Gopal, Chong Kim, D. Kalinkin, E. Loyd, Guannan Xie, D. Chen, M. Strikhanov, A. Gupta, N. Raha, J. Rusnak, L. Ruan, Xuan Zhang, T. Todoroki, Qi Yang, Zuojia Wang, P. Seyboth, L. S. Pinsky, I. Bunzarov, K. Yip, A. Pandav, J. S. Wang, J. R. Adams, David Stewart, Z. Liu, R. Witt, S. Heppelmann, Hanna Paulina Zbroszczyk, A. Gibson, F-H. Chang, G. Odyniec, J. Sandweiss, Q. H. Xu, Ashik Ikbal Sheikh, E. P. Sichtermann, L. Didenko, Donald M. Anderson, Jiangyong Jia, S. Mioduszewski, Robert Licenik, Anthony Robert Timmins, Jan Vanek, Leszek Adamczyk, Jaroslav Bielcik, D. G. Underwood, B. J. Summa, Sevil Salur, Zebo Tang, X. Chu, Joel Anthony Mazer, S. He, Isaac Mooney, H. G. Ritter, Roland Laszlo Pinter, H. J. Crawford, J. K. Adkins, K. N. Barish, W. Christie, J. M. Butterworth, R. Reed, R. Fatemi, Y. Hu, S. Harabasz, Prithwish Tribedy, B. K. Srivastava, Peng Liu, Y. Panebratsev, Saehanseul Oh, D. Grosnick, Maria Stefaniak, L. Di Carlo, D. Tlusty, B. K. Chan, Michal Sumbera, A. A. P. Suaide, G. S. Averichev, J. C. Webb, J. Porter, Shengli Huang, Lokesh Kumar, O. V. Rogachevskiy, Catherine Tomkiel, B. Xi, Jaroslav Adam, P. V. Shanmuganathan, V. Prozorova, M. I. Nagy, E. Hoffman, Rafal Sikora, N. K. Pruthi, Y. H. Leung, G. Eppley, Y. F. Wu, Susumu Sato, J. Cheng, Subhash Singha, Andrey Vasiliev, D. Isenhower, J. C. Dunlop, L. Wen, D. Kincses, Y. Li, Niladribihari Sahoo, Tong Liu, Hao Qiu, Ivan Kisel, W. Solyst, S. W. Wissink, D. Neff, T. Tarnowsky, A. S. Nunes, I. Upsal, Zubayer Ahammed, J. B. Singh, X. Liang, J. Pluta, M. Zyzak, C. Perkins, J. Wu, O. Eyser, Z. Z. Xu, X.G. Li, Y. Zhang, Z. J. Zhang, S. Kumar, M. S. Abdallah, T. Ullrich, M. Calderon De La Barca Sanchez, A. I. Hamad, Madan M. Aggarwal, P. Federic, D. Kapukchyan, A. K. Pandey, N. Chankova-Bunzarova, W. Li, M. Csanad, X. Z. Cai, A. A. Derevschikov, Skipper Kagamaster, Rene Bellwied, X. M. Sun, Fuqiang Wang, Y. F. Xu, Xiangming Sun, Janet Elizabeth Seger, C. Fu, I. M. Deppner, Nikita Smirnov, K. Nayak, M. Robotkova, J. Putschke, G. Agakishiev, Y. Yang, Xiaofeng Zhu, Q. Y. Shou, Hua Pei, S. K. Tripathy, Ying Liang, R. E. Tribble, T. G. Dedovich, Jize Zhao, D. Cebra, C. Yang, A. Dhamija, Zhanwen Zhu, G. Wang, M. J. Skoby, Frank Jm Geurts, C. C. Zhang, G. Ponimatkin, R. Pak, A. Ogawa, F. Liu, Miroslav Simko, Dukhishyam Mallick, R. Kunnawalkam Elayavalli, D. Zhang, H. S. Xu, Olga Evdokimov, Barbara Antonina Trzeciak, Y. Lin, Y. Söhngen, T. Galatyuk, S. Esumi, Nilay Shah, C-Q. Li, Wei Xie, Mariusz Przybycien, W. Guryn, R. Lacey, J. D. Nam, I. Aggarwal, P. Parfenov, A. G. Knospe, Li Yi, M. Chevalier, Christina Markert, A. Aparin, H. S. Matis, Maria Zurek, Jongmin Lee, R. Nishitani, R. Ma, R. Seto, Md. Nasim, J. Fedorisin, R. D. Majka, Y. Huang, Xiaoyu Liu, D. N. Svirida, L. K. Kosarzewski, M. D. Harasty, P. Sorensen, Joseph Kwasizur, J. L. Drachenberg, W. W. Jacobs, Yicheng Feng, Y. Shi, N. Schmitz, J. Lauret, M. Shao, G. Van Buren, E. Shahaliev, J. G. Ball Cap, Y. Han, T. Ljubicic, Anju Bhasin, X. H. He, L. V. Nogach, K. Kang, T. Niida, P. Kravtsov, S. S. Shi, M. M. Mondal, E. G. Judd, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, H. Sako, Z. Tu, Jana Bielcikova, A. Lebedev, H. Caines, J. L. Romero, A. Quintero, N. Herrmann, J. M. Nelson, Lukas Kramarik, Sooraj Krishnan Radhakrishnan, Y. He, E. Finch, Y. G. Ma, Jing-Han Chen, F. Videbæk, Sukalyan Chattopadhyay, E. C. Aschenauer, Chitrasen Jena, S. Margetis, X. Dong, Diana Pawlowska, Y. Fisyak, Lin Ma, M. S. Daugherity, H. W. Ke, L. Fulek, B. Pawlik, I. Vassiliev, D. Shen, S. Zhang, Alexander Kiselev, X. Gou, P. Chaloupka, Ting Lin, S. Trentalange, Y. J. Sun, H. Liu, S. Kabana, Benjamin Schweid, T. J. Humanic, A. Hamed, M. Sergeeva, T. Truhlar, B. S. Page, Avishek Chatterjee, D. P. Kikola, B. Stringfellow, T. Shao, R. S. Longacre, M. L. Kabir, K. Kauder, and A. Taranenko
Subjects: Physics, Meson, 010308 nuclear & particles physics, Hadron, Constituent quark, 01 natural sciences, Nuclear physics, 0103 physical sciences, Transverse momentum, 010306 general physics, Anisotropy, Relativistic Heavy Ion Collider, Size dependence, STAR detector
Abstract: Author(s): Abdallah, MS; Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, I; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A; Aschenauer, EC; Ashraf, MU; Atetalla, FG; Attri, A; Averichev, GS; Bairathi, V; Baker, W; Ball Cap, JG; Barish, K; Behera, A; Bellwied, R; Bhagat, P; Bhasin, A; Bielcik, J; Bielcikova, J; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Bunzarov, I; Butterworth, J; Cai, XZ; Caines, H; Calderon De La Barca Sanchez, M; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, D; Chen, J; Chen, JH; Chen, X; Chen, Z; Cheng, J; Chevalier, M; Choudhury, S; Christie, W; Chu, X; Crawford, HJ; Csanad, M; Daugherity, M; Dedovich, TG; Deppner, IM; Derevschikov, AA; Dhamija, A; Di Carlo, L; Didenko, L; Dong, X; Drachenberg, JL; Dunlop, JC; Elsey, N; Engelage, J; Eppley, G; Esumi, S; Evdokimov, O; Ewigleben, A; Eyser, O; Fatemi, R; Fawzi, FM; Fazio, S; Federic, P; Fedorisin, J; Feng, CJ; Feng, Y; Filip, P; Finch, E; Fisyak, Y; Francisco, A; Fu, C | Abstract: We present systematic measurements of azimuthal anisotropy for strange and multistrange hadrons (Ks0, Λ, Ξ, and ω) and φ mesons at midrapidity (|y|l 1.0) in collisions of U+U nuclei at sNN=193 GeV, recorded by the STAR detector at the Relativistic Heavy Ion Collider. Transverse momentum (pT) dependence of flow coefficients (v2, v3, and v4) is presented for minimum bias collisions and three different centrality intervals. Number of constituent quark scaling of the measured flow coefficients in U+U collisions is discussed. We also present the ratio of vn scaled by the participant eccentricity (ɛn2) to explore system size dependence and collectivity in U+U collisions. The magnitude of v2/ɛ2 is found to be smaller in U+U collisions than that in central Au+Au collisions contradicting naive eccentricity scaling. Furthermore, the ratios between various flow harmonics (v3/v23/2, v4/v24/2) are studied and compared with hydrodynamic and transport model calculations.
Published: 2021

8. Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at s=200 GeV

Author: Muhammad Usman Ashraf, Qi Yang, Sergey Voloshin, Zuojia Wang, Xinyue Ju, Q. H. Xu, C. Racz, H. Z. Huang, V. Verkest, S. Vokal, A. Ewigleben, L. S. Pinsky, J. Porter, E. P. Sichtermann, M. Calderon De La Barca Sanchez, K. Jiang, Y. Wang, K. Yip, J. S. Wang, Audrey Francisco, A. I. Hamad, V. Prozorova, Ivan Kisel, W. Baker, M. Robotkova, N. Raha, Shangfeng Yang, J. H. Chen, C. J. Feng, Rajarshi Ray, Jiangyong Jia, Isaac Mooney, D. G. Underwood, Dukhishyam Mallick, Wei Xie, Y. Fisyak, Lin Ma, J. D. Nam, D. A. Morozov, M. S. Abdallah, A. Aparin, T. Ullrich, Joel Anthony Mazer, Zebo Tang, C. C. Zhang, S. He, Anju Bhasin, J. Cheng, L. V. Nogach, X. C. Chen, T. Shao, M. Sergeeva, Z. J. Zhang, D. Tlusty, B. R. Pokhrel, D. Kalinkin, Yunlan Ji, H. S. Xu, G. Wang, A. V. Brandin, N. Schmitz, N. Magdy, Robert Licenik, Anthony Robert Timmins, K. Kang, T. Niida, M. Tokarev, A. Lebedev, Y. F. Xu, F. G. Atetalla, J. Wu, S. Heppelmann, B. J. Summa, R. S. Longacre, J. W. Harris, Roland Laszlo Pinter, C. Perkins, N. S. Lukow, T. Truhlar, K. N. Barish, B. Xi, E. Shahaliev, C. Yang, H. J. Crawford, O. D. Tsai, Niladribihari Sahoo, Tong Liu, S. Harabasz, M. L. Kabir, Y. Söhngen, Vipul Bairathi, M. D. Harasty, D. Kincses, L. Di Carlo, J. K. Adkins, E. C. Aschenauer, R. Fatemi, N. Herrmann, Daniel Nemes, D. N. Svirida, J. B. Singh, S. Kumar, M. I. Nagy, Y. F. Wu, Olga Evdokimov, Barbara Antonina Trzeciak, P. Seyboth, I. Upsal, Irakli Chakaberia, J. Engelage, O. Eyser, P. V. Shanmuganathan, T. Tarnowsky, Zhenyu Chen, X. G. Luo, A. H. Tang, Pengdong Wang, P. Parfenov, Lukas Holub, Bedangadas Mohanty, C. Fu, A. Dhamija, P. Szymanski, T. D. S. Stanislaus, B. Pawlik, D. Shen, E. Loyd, Guannan Xie, P. C. Weidenkaff, K. Gopal, S. Margetis, X. Dong, T. G. Dedovich, G. Nigmatkulov, Xuan Zhang, F. M. Fawzi, B. S. Page, Avishek Chatterjee, D. P. Kikola, D. Kapukchyan, Y. Li, S. Zhang, Z. Chang, H. H. Wieman, Jan Vanek, Leszek Adamczyk, M. J. Skoby, Frank Jm Geurts, Z. Liu, B. Stringfellow, I. Bunzarov, W. Zha, K. Kauder, A. Taranenko, A. K. Pandey, J. M. Landgraf, J. R. Adams, T. Galatyuk, David Stewart, Xiangming Sun, Hanna Paulina Zbroszczyk, P. Sorensen, M. Chevalier, P. Federic, Hua Pei, W. Christie, S. K. Tripathy, Y. Han, Jongmin Lee, D. Chen, S. Lan, Joseph Kwasizur, A. A. Derevschikov, Alexander Kiselev, Sevil Salur, H. Sako, A. G. Knospe, M. Strikhanov, A. S. Nunes, R. Ma, A. Pandav, F. Seck, M. S. Daugherity, W. Guryn, M. Posik, M. Shao, G. Van Buren, Subhash Singha, Andrey Vasiliev, H. W. Ke, X. Gou, Arabinda Behera, L. Fulek, Maria Zurek, R. Lacey, Jana Bielcikova, J. G. Ball Cap, J. L. Romero, Lokesh Kumar, S. S. Shi, Jaroslav Adam, N. Ghimire, X.G. Li, Z. Ye, H. M. Spinka, G. Odyniec, J. Sandweiss, R. Kunnawalkam Elayavalli, Maowu Nie, Z. W. Sweger, T. Ljubicic, Somnath Choudhury, X. H. He, R. Reed, I. G. Alekseev, Y. H. Leung, Y. J. Sun, R. Nishitani, N. K. Pruthi, Chong Kim, Ashik Ikbal Sheikh, Janet Elizabeth Seger, H. Caines, X. Huang, A. Kechechyan, Yicheng Feng, Y. Shi, A. Quintero, J. H. Thomas, Lukas Kramarik, Sooraj Krishnan Radhakrishnan, Y. Yang, G. Eppley, Y. He, S. Kabana, G. Ponimatkin, I. M. Deppner, D. Keane, X. Liang, Nilay Shah, J. M. Nelson, Donald M. Anderson, H. G. Ritter, T. Nonaka, W. J. Llope, C. Zhou, J. Fedorisin, M. A. Lisa, E. Hoffman, Rafal Sikora, Y. G. Ma, Jing-Han Chen, E. Finch, P. Chaloupka, Xiaoyu Liu, J. Pluta, M. Zyzak, F. Liu, Miroslav Simko, F-H. Chang, J. C. Dunlop, L. Wen, Mariusz Przybycien, Alexander Jentsch, N. Chankova-Bunzarova, W. Li, Skipper Kagamaster, Ting Lin, Maria Stefaniak, H. Harrison, G. S. Averichev, A. Attri, Rene Bellwied, I. Vassiliev, S. Trentalange, P. Bhagat, H. Liu, Zubayer Ahammed, R. Seto, M. M. Mondal, E. G. Judd, Y. Huang, X. Chu, R. E. Tribble, Jize Zhao, Y. Lin, X. Z. Cai, Peng Liu, X. M. Sun, B. K. Chan, Michal Sumbera, A. A. P. Suaide, Catherine Tomkiel, S. W. Wissink, D. Neff, Y. Zhang, Benjamin Schweid, T. J. Humanic, A. Hamed, Y. Panebratsev, Q. Y. Shou, W. He, Saehanseul Oh, D. Grosnick, D. Isenhower, Z. Z. Xu, Nikita Smirnov, K. Nayak, R. Pak, Y. Yu, R. Witt, J. D. Brandenburg, S. Mioduszewski, Prithwish Tribedy, G. Agakishiev, B. K. Srivastava, D. Cebra, Shengli Huang, Zhanwen Zhu, A. Gibson, L. Didenko, J. M. Butterworth, J. C. Webb, Susumu Sato, Hao Qiu, W. Solyst, F. Videbæk, Sukalyan Chattopadhyay, Chitrasen Jena, Diana Pawlowska, Li Yi, P. Kravtsov, N. Xu, P. Filip, G. D. Westfall, A. Gupta, Zhigang Xiao, T. Huang, Yunpeng Liu, N. G. Minaev, B. Kimelman, J. Rusnak, L. Ruan, T. Todoroki, Jaroslav Bielcik, Y. Hu, O. V. Rogachevskiy, Vitaly Okorokov, Bernd Surrow, M. Csanad, J. Putschke, Xiaofeng Zhu, A. Mukherjee, N. Elsey, Ying Liang, A. Ogawa, W. B. Schmidke, C-Q. Li, C. A. Gagliardi, Christina Markert, H. S. Matis, L. K. Kosarzewski, W. W. Jacobs, J. Lauret, Madan M. Aggarwal, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, Z. Tu, Fuqiang Wang, S. Fazio, Zongye Zhang, I. G. Bordyuzhin, D. Zhang, S. Esumi, I. Aggarwal, Md. Nasim, R. D. Majka, and J. L. Drachenberg
Subjects: Physics, Particle physics, Proton, 010308 nuclear & particles physics, media_common.quotation_subject, Chatterjee, Jet (particle physics), 01 natural sciences, Asymmetry, Helicity, 0103 physical sciences, Production (computer science), 010306 general physics, media_common, Spin-½
Abstract: Author(s): Abdallah, MS; Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, I; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A; Aschenauer, EC; Ashraf, MU; Atetalla, FG; Attri, A; Averichev, GS; Bairathi, V; Baker, W; Ball Cap, JG; Barish, K; Behera, A; Bellwied, R; Bhagat, P; Bhasin, A; Bielcik, J; Bielcikova, J; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Bunzarov, I; Butterworth, J; Cai, XZ; Caines, H; Calderon De La Barca Sanchez, M; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, D; Chen, J; Chen, JH; Chen, X; Chen, Z; Cheng, J; Chevalier, M; Choudhury, S; Christie, W; Chu, X; Crawford, HJ; Csanad, M; Daugherity, M; Dedovich, TG; Deppner, IM; Derevschikov, AA; Dhamija, A; Di Carlo, L; Didenko, L; Dong, X; Drachenberg, JL; Dunlop, JC; Elsey, N; Engelage, J; Eppley, G; Esumi, S; Evdokimov, O; Ewigleben, A; Eyser, O; Fatemi, R; Fawzi, FM; Fazio, S; Federic, P; Fedorisin, J; Feng, CJ; Feng, Y; Filip, P; Finch, E; Fisyak, Y; Francisco, A; Fu, C | Abstract: We report high-precision measurements of the longitudinal double-spin asymmetry, ALL, for midrapidity inclusive jet and dijet production in polarized pp collisions at a center-of-mass energy of s=200 GeV. The new inclusive jet data are sensitive to the gluon helicity distribution, Δg(x,Q2), for gluon momentum fractions in the range from x≃0.05 to x≃0.5, while the new dijet data provide further constraints on the x dependence of Δg(x,Q2). The results are in good agreement with previous measurements at s=200 GeV and with recent theoretical evaluations of prior world data. Our new results have better precision and thus strengthen the evidence that Δg(x,Q2) is positive for xg0.05.
Published: 2021

9. The proton–Ω correlation function in Au + Au collisions at sNN=200GeV

Author: M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Roli Esha, Daniel Nemes, Jie Zhao, S. Horvat, Anik Gupta, L. C. Bland, B. J. Summa, J. Y. Zhang, F. Videbæk, A. Lipiec, J. Porter, P. Sorensen, David Brown, W. Zha, Frank Jm Geurts, T. Galatyuk, N. Yu, E. P. Sichtermann, S. Ramachandran, L. V. Nogach, B. Pawlik, F. Liu, Miroslav Simko, Mariusz Przybycien, Sumit R. Das, Y. Yang, Sukalyan Chattopadhyay, Siwei Luo, O. Eyser, C. Zhou, A. Gibson, J. H. Thomas, L. P. Zhou, F-H. Chang, Q. Yang, G. S. Averichev, K. Meehan, Shize Yang, Madan M. Aggarwal, Fuqiang Wang, L. Didenko, I. Chakaberia, I. K. Yoo, J. K. Adkins, A. Harlenderova, F. Seck, Md. Nasim, R. D. Majka, L. Zhang, Wei Xie, D. K. Mishra, Xiangming Sun, M. Posik, H. M. Spinka, Arka Chatterjee, J. M. Campbell, Q. H. Xu, R. Witt, R. Fatemi, L. He, Shaji Kumar, Todd Kinghorn, D. Kalinkin, T. Ullrich, A. Aparin, I. G. Alekseev, W. Guryn, J. Schambach, H. Z. Huang, S. Vokal, J. Xu, N. Kulathunga, S. Mioduszewski, S. Fazio, A. Vossen, T. G. Dedovich, J. D. Negrete, M. A. Lisa, J. C. Mei, K. Krueger, S. Esumi, J. Fedorisin, M. M. Mondal, J. C. Webb, Isaac Mooney, N. Xu, P. Filip, N. Schmitz, Zebo Tang, Xiaofeng Luo, I. Kisel, Guo-Liang Ma, W. Christie, Li Yi, E. Shahaliev, Prithwish Tribedy, B. K. Srivastava, Chi Yang, Jaroslav Bielcik, D. G. Underwood, R. Seto, Xiaofeng Zhu, Ying Liang, J. Lidrych, G. D. Westfall, N. K. Pruthi, A. S. Hirsch, M. Cherney, Shengli Huang, Y. Li, S. Singha, Andrey Vasiliev, G. Eppley, P. Chaloupka, Ting Lin, J. Jia, Arabinda Behera, C. E. Flores, A. Ogawa, E. G. Judd, O. V. Rogachevskiy, P. Kravtsov, Fuwang Shen, A. M. Schmah, Jana Bielcikova, Z. J. Xu, D. N. Svirida, J. Pluta, J. L. Romero, J. Cheng, M. Tokarev, D. A. Morozov, A. Quintero, N. Chankova-Bunzarova, W. Li, I. Vassiliev, Muhammad Usman Ashraf, P. Federic, Lokesh Kumar, Hua Pei, S. K. Tripathy, X.G. Li, J. C. Dunlop, L. Wen, Lukas Kramarik, C. Perkins, J. W. Harris, Zongye Zhang, Y. Guo, J. M. Nelson, W. J. Llope, C. Zhong, E. C. Aschenauer, S. Trentalange, M. Zyzak, E. Finch, I. G. Bordyuzhin, Sergey Voloshin, Zubayer Ahammed, Xuedong Bai, Janet Elizabeth Seger, S. Margetis, D. L. Olvitt, L. Ma, Vitaly Okorokov, G. Agakishiev, D. S. Gunarathne, I. M. Deppner, G. Wang, Rene Bellwied, X. Dong, Bernd Surrow, Anju Bhasin, N. Elsey, G. Xie, J. Bryslawskyj, D. Mayes, Z. Chang, A. J. Bassill, D. Cebra, K. Jiang, J. A. Mazer, Giacomo Contin, K. Kauder, R. E. Tribble, W. B. Schmidke, Alexander Jentsch, T. D. S. Stanislaus, Yanjun Wu, Tetsuro Sugiura, K. Kang, T. Niida, Q. Y. Shou, C. A. Gagliardi, D. Kapukchyan, P. Federicova, C-Q. Li, D. Arkhipkin, A. Hamed, Arkadiy Taranenko, Zhanwen Zhu, Y. J. Sun, A. Lebedev, H. H. Wieman, Nihar Sahoo, C. Dilks, X. C. Chen, Christina Markert, D. Smirnov, O. Rusnakova, Michal Sumbera, R. Pak, J. Rusnak, J. L. Drachenberg, H. S. Matis, A. A. P. Suaide, Olga Evdokimov, B. Huang, Song Zhang, S. Kabana, A. H. Tang, L. K. Kosarzewski, A. F. Kraishan, Justin Ewigleben, I. Upsal, M. Sergeeva, S. B. Nurushev, W. W. Jacobs, J. Engelage, Catherine Tomkiel, B.R. Schweid, T. J. Humanic, J. Lauret, Anthony Robert Timmins, N.N. Ajitanand, L. Ruan, Joseph Kwasizur, Jay Roberts, Adam Ryszard Kisiel, R. Lednicky, L. Kochenda, T. Tarnowsky, G. Odyniec, G. Nigmatkulov, M. Shao, G. Van Buren, H. J. Crawford, Z. Ye, Jaroslav Adam, Maowu Nie, X. Huang, A. Attri, A. Kechechyan, S. S. Shi, H. W. Ke, S. K. Radhakrishnan, S. W. Wissink, L. Fulek, Pradip Kumar Sahu, T. Nonaka, B. S. Page, Y. Zhang, I. Bunzarov, O. Matonoha, D. P. Kikola, B. Stringfellow, J. M. Landgraf, R. S. Longacre, Jing-Han Chen, P. Huo, Lukas Holub, Bedangadas Mohanty, T. Todoroki, M. Strikhanov, Chong Kim, H. G. Ritter, Xuan Zhang, P. V. Shanmuganathan, Zhigang Xiao, T. Huang, J. Sandweiss, J. R. Adams, Yunpeng Liu, Derek Anderson, R. Aoyama, A. K. Bhati, N. G. Minaev, D. Mallick, W. Solyst, D. Keane, Hanna Paulina Zbroszczyk, G. Igo, Nikolai Smirnov, N. Herrmann, L. Krauth, Jongmin Lee, L. G. Efimov, R. L. Ray, R. Ma, J. Butterworth, Y. F. Xu, R. Kunnawalkam Elayavalli, R. Reed, T. Ljubicic, S. Siejka, Niseem Magdy, H. Caines, M. Lomnitz, Y. Panebratsev, Saehanseul Oh, D. Grosnick, Yu-Gang Ma, Y. Fisyak, Samuel Heppelmann, K. Oh, R. Lacey, P. Szymanski, B. Tu, P. Seyboth, Jan Vanek, Leszek Adamczyk, D. Tlusty, F. G. Atetalla, O. D. Tsai, Peter Q. Liu, J. Kvapil, Nilay Shah, W. Q. Shen, Jorn Henning Putschke, A. V. Brandin, Xiang Sun, Vipul Bairathi, James Brandenburg, K. N. Barish, H. Liu, A. A. Derevschikov, David Stewart, Sevil Salur, Y. Wang, K. Yip, and Rafal Sikora
Subjects: Physics, Nuclear and High Energy Physics, Proton, 010308 nuclear & particles physics, Nuclear Theory, Binding energy, Lattice QCD, 01 natural sciences, Nuclear physics, Momentum, Correlation function, 0103 physical sciences, Bound state, Impact parameter, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: We present the first measurement of the proton–Ω correlation function in heavy-ion collisions for the central (0–40%) and peripheral (40–80%) Au + Au collisions at s NN = 200 GeV by the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). Predictions for the ratio of peripheral collisions to central collisions for the proton–Ω correlation function are sensitive to the presence of a nucleon–Ω bound state. These predictions are based on the proton–Ω interaction extracted from ( 2 + 1 ) -flavor lattice QCD calculations at the physical point. The measured ratio of the proton–Ω correlation function between the peripheral (small system) and central (large system) collisions is less than unity for relative momentum smaller than 40 MeV/c. Comparison of our measured correlation ratio with theoretical calculation slightly favors a proton–Ω bound system with a binding energy of ∼ 27 MeV.
Published: 2019

10. Comparison of transverse single-spin asymmetries for forward π0 production in polarized pp , pAl and pAu collisions at nucleon pair c.m. energy sNN=200 GeV

Author: Muhammad Usman Ashraf, Jaroslav Bielcik, N. Xu, P. Filip, Sergey Voloshin, Xinyue Ju, G. D. Westfall, K. Jiang, Y. Wang, Y. Hu, O. V. Rogachevskiy, D. Kalinkin, G. Eppley, S. Heppelmann, B. J. Summa, M. Csanad, D. D. Koetke, S. Harabasz, J. Pluta, Peng Liu, Anju Bhasin, Y. Panebratsev, Saehanseul Oh, D. Grosnick, J. Putschke, Xiaofeng Zhu, W. Christie, Ying Liang, D. Kincses, M. Zyzak, N. Chankova-Bunzarova, W. Li, Skipper Kagamaster, Subhash Singha, Andrey Vasiliev, X.G. Li, Janet Elizabeth Seger, I. M. Deppner, K. Kang, T. Niida, A. Lebedev, Maria Stefaniak, Qi Yang, Zuojia Wang, A. Ogawa, Y. Fisyak, M. Tokarev, S. Ramachandran, O. Eyser, F. Liu, Miroslav Simko, Mariusz Przybycien, Q. H. Xu, Madan M. Aggarwal, Fuqiang Wang, Rene Bellwied, Y. J. Sun, C. Dilks, W. He, Y. Yu, Md. Nasim, R. D. Majka, Siwei Luo, J. L. Drachenberg, Zhigang Xiao, T. Huang, S. Kabana, D. Isenhower, J. D. Brandenburg, Z. Z. Xu, M. I. Nagy, Y. F. Wu, R. E. Tribble, Yunpeng Liu, P. Szymanski, Lin Ma, F. Videbæk, C-Q. Li, T. D. S. Stanislaus, Nikita Smirnov, K. Nayak, Christina Markert, H. H. Wieman, L. Didenko, N. G. Minaev, Y. Li, Jize Zhao, R. Witt, M. Calderon De La Barca Sanchez, A. I. Hamad, Jiangyong Jia, Sedigheh Jowzaee, B. Kimelman, D. Zhang, I. G. Alekseev, S. Mioduszewski, H. S. Matis, M. A. Lisa, S. Esumi, L. K. Kosarzewski, Y. Lin, A. V. Brandin, I. Vassiliev, X. Chu, H. Z. Huang, S. Vokal, Isaac Mooney, Yunlan Ji, X. M. Sun, K. N. Barish, Guannan Xie, Xuan Zhang, W. W. Jacobs, J. Rusnak, J. Lauret, P. Federic, Audrey Francisco, Vitaly Okorokov, Chitrasen Jena, J. Engelage, D. Kapukchyan, Prithwish Tribedy, B. K. Srivastava, G. Nigmatkulov, Shengli Huang, Daniel Nemes, P. Sorensen, Yevheniia Khyzhniak, Hanna Paulina Zbroszczyk, R. Lednicky, L. Kochenda, Joseph Kwasizur, P. V. Shanmuganathan, Z. Ye, Maowu Nie, M. Kocan, Z. Tu, Bernd Surrow, X. Huang, R. S. Longacre, S. Horvat, L. Ruan, N. Elsey, B. K. Chan, Michal Sumbera, Diana Pawlowska, P. Seyboth, T. Tarnowsky, Jan Vanek, Shangfeng Yang, Dukhishyam Mallick, A. Kechechyan, M. Shao, G. Van Buren, M. L. Kabir, T. Nonaka, D. Keane, J. C. Dunlop, L. Wen, J. H. Chen, C. J. Feng, Rajarshi Ray, W. B. Schmidke, S. Fazio, Zongye Zhang, Vipul Bairathi, I. G. Bordyuzhin, Irakli Chakaberia, A. A. P. Suaide, R. Reed, W. Zha, M. Sergeeva, Guo-Liang Ma, J. M. Landgraf, D. Chen, M. H. Kelsey, Catherine Tomkiel, G. Agakishiev, C. A. Gagliardi, Li Yi, A. A. Derevschikov, S. S. Shi, J. R. Adams, G. Igo, D. A. Morozov, D. Cebra, Leszek Adamczyk, J. W. Harris, Zubayer Ahammed, N. S. Lukow, Z. Moravcova, T. Edmonds, M. Strikhanov, W. J. Llope, C. Zhou, Zhanwen Zhu, S. W. Wissink, P. Kravtsov, D. Neff, R. Kunnawalkam Elayavalli, Zhenyu Chen, Wei Xie, J. D. Nam, D. G. Underwood, F. G. Atetalla, O. D. Tsai, J. M. Nelson, Alexander Jentsch, N. K. Pruthi, K. Kauder, A. Taranenko, A. Gibson, B. S. Page, Y. Zhang, Avishek Chatterjee, C. Zhong, X. G. Luo, A. S. Nunes, Q. Y. Shou, D. P. Kikola, A. Attri, Y. F. Xu, R. Pak, B. Stringfellow, P. C. Weidenkaff, G. Odyniec, J. Sandweiss, R. Seto, J. Cheng, A. Aparin, A. H. Tang, Pengdong Wang, W. Q. Shen, K. Gopal, Y. G. Ma, Jing-Han Chen, A. Ewigleben, Olga Evdokimov, Peng Huo, J. M. Butterworth, L. S. Pinsky, K. Yip, Joel Anthony Mazer, Z. Yang, David Stewart, J. S. Wang, Sevil Salur, C. Yang, Xiaoyu Liu, W. Guryn, R. Lacey, J. C. Webb, N. Schmitz, S. He, G. Wang, E. Shahaliev, M. M. Mondal, Lokesh Kumar, E. G. Judd, Maria Zurek, Jaroslav Adam, J. Fedorisin, N. Magdy, Y. H. Leung, L. C. Bland, Lukas Holub, Bedangadas Mohanty, K. Krueger, D. Tlusty, Susumu Sato, Z. Liu, H. Sako, Hao Qiu, W. Solyst, Yicheng Feng, Y. Shi, N. Herrmann, Jana Bielcikova, J. L. Romero, Niladribihari Sahoo, Tong Liu, Lukas Kramarik, Sooraj Krishnan Radhakrishnan, Y. He, E. Finch, J. K. Adkins, R. Fatemi, Todd Kinghorn, I. Upsal, H. Liu, M. Cherney, Xiangming Sun, Hua Pei, S. K. Tripathy, Benjamin Schweid, T. J. Humanic, A. Hamed, X. C. Chen, Alexander Kiselev, X. Gou, Robert Licenik, Anthony Robert Timmins, Roland Laszlo Pinter, H. J. Crawford, P. Chaloupka, Ting Lin, S. Trentalange, B. Pawlik, S. Zhang, Zebo Tang, C. Perkins, Frank Jm Geurts, T. Galatyuk, Y. Hong, Z. Chang, A. Pandav, N. Kulathunga Mudiyanselage, S. Lan, F. Seck, L. V. Nogach, M. Posik, Arabinda Behera, J. B. Singh, S. Kumar, H. M. Spinka, T. G. Dedovich, D. N. Svirida, Somnath Choudhury, J. Porter, Ivan Kisel, M. S. Daugherity, H. W. Ke, L. Fulek, Y. Yang, Z. J. Zhang, Nilay Shah, Chong Kim, Ashik Ikbal Sheikh, Donald M. Anderson, H. G. Ritter, E. Hoffman, Rafal Sikora, J. H. Thomas, F-H. Chang, G. S. Averichev, E. C. Aschenauer, S. Margetis, X. Dong, E. P. Sichtermann, T. Ullrich, C. C. Zhang, H. S. Xu, M. Chevalier, Jongmin Lee, R. Ma, T. Ljubicic, X. H. He, H. Caines, and A. Quintero
Subjects: Physics, Nuclear physics, Pion, Electromagnetic calorimeter, Proton, Meson, Pseudorapidity, Production (computer science), Nucleon, Spin-½
Abstract: Author(s): Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A; Aschenauer, EC; Ashraf, MU; Atetalla, FG; Attri, A; Averichev, GS; Bairathi, V; Barish, K; Behera, A; Bellwied, R; Bhasin, A; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chen, D; Chen, J; Chen, JH; Chen, X; Chen, Z; Cheng, J; Cherney, M; Chevalier, M; Choudhury, S; Christie, W; Chu, X; Crawford, HJ; Csanad, M; Daugherity, M; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Dunlop, JC; Edmonds, T; Elsey, N; Engelage, J; Eppley, G; Esumi, S; Evdokimov, O; Ewigleben, A; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Fedorisin, J; Feng, CJ; Feng, Y; Filip, P; Finch, E; Fisyak, Y; Francisco, A; Fulek, L; Gagliardi, CA; Galatyuk, T; Geurts, F; Gibson, A; Gopal, K; Gou, X; Grosnick, D | Abstract: The STAR collaboration reports a measurement of the transverse single-spin asymmetries, AN, for neutral pions produced in polarized proton collisions with protons (pp), with aluminum nuclei (pAl) and with gold nuclei (pAu) at a nucleon-nucleon center-of-mass energy of 200 GeV. Neutral pions are observed in the forward direction relative to the transversely polarized proton beam, in the pseudorapidity region 2.7lηl3.8. Results are presented for π0s observed in the STAR forward meson spectrometer electromagnetic calorimeter in narrow Feynman x (xF) and transverse momentum (pT) bins, spanning the range 0.172.5 GeV/c. It is further observed that the value of AN is significantly larger for events with a large-pT isolated π0 than for events with a nonisolated π0 accompanied by additional jetlike fragments. The nuclear dependence r(A) is similar for isolated and nonisolated π0 events.
Published: 2021

11. Flow and interferometry results from Au+Au collisions at sNN=4.5 GeV

Author: F. M. Fawzi, Z. Chang, Sukalyan Chattopadhyay, P. Sorensen, Joseph Kwasizur, S. Lan, F. Seck, J. Rusnak, M. Shao, G. Van Buren, M. Posik, Chitrasen Jena, S. S. Shi, J. K. Adkins, Arabinda Behera, H. M. Spinka, Z. W. Sweger, L. Ruan, Alexander Kiselev, Diana Pawlowska, Z. Ye, Somnath Choudhury, J. M. Nelson, Olga Evdokimov, Barbara Antonina Trzeciak, R. Fatemi, Maowu Nie, Todd Kinghorn, Yunlan Ji, Y. Han, X. Huang, T. Todoroki, Y. G. Ma, Jing-Han Chen, X. Gou, Peng Liu, X. Chu, A. Kechechyan, I. Upsal, W. J. Llope, C. Zhou, Alexander Jentsch, M. Calderon De La Barca Sanchez, A. I. Hamad, A. Attri, P. Bhagat, F. Liu, Miroslav Simko, Mariusz Przybycien, T. Nonaka, Y. Panebratsev, M. S. Daugherity, B. R. Pokhrel, Maria Zurek, H. Sako, J. H. Thomas, Saehanseul Oh, D. Grosnick, Guannan Xie, Xuan Zhang, H. W. Ke, G. Agakishiev, M. Robotkova, Hanna Paulina Zbroszczyk, R. Reed, B. K. Chan, Michal Sumbera, A. A. P. Suaide, Yicheng Feng, Y. Shi, L. Fulek, Dukhishyam Mallick, P. Chaloupka, D. Kincses, A. K. Pandey, Xiangming Sun, Md. Nasim, D. Cebra, Zebo Tang, D. Isenhower, Jana Bielcikova, J. L. Romero, Zhanwen Zhu, Maria Stefaniak, I. Vassiliev, Catherine Tomkiel, S. W. Wissink, D. Neff, Y. Zhang, M. Tokarev, Lukas Kramarik, R. D. Majka, J. L. Drachenberg, Hua Pei, S. K. Tripathy, P. Seyboth, C-Q. Li, N. Ghimire, Z. Z. Xu, Jan Vanek, Sooraj Krishnan Radhakrishnan, Ting Lin, N. Raha, S. Trentalange, Li Yi, Y. Yu, X. Z. Cai, E. P. Sichtermann, Chong Kim, Ashik Ikbal Sheikh, A. Gibson, W. Baker, X. M. Sun, Zhigang Xiao, L. Di Carlo, P. Szymanski, T. Huang, Yunpeng Liu, Anju Bhasin, Y. Li, Christina Markert, Donald M. Anderson, H. G. Ritter, H. Z. Huang, E. Hoffman, Nikita Smirnov, K. Nayak, R. S. Longacre, M. L. Kabir, Leszek Adamczyk, Rafal Sikora, P. Kravtsov, N. Magdy, S. Mioduszewski, Y. He, E. Finch, Lukas Holub, Bedangadas Mohanty, W. Guryn, T. D. S. Stanislaus, N. G. Minaev, Lokesh Kumar, C. Yang, B. Pawlik, J. M. Butterworth, F. G. Atetalla, Jaroslav Adam, E. Loyd, R. Lacey, H. H. Wieman, O. D. Tsai, H. S. Matis, W. He, J. C. Webb, P. Federic, B. Kimelman, D. Shen, N. K. Pruthi, K. Kang, T. Niida, Z. Liu, Y. H. Leung, R. Nishitani, V. Prozorova, Jiangyong Jia, J. D. Brandenburg, X. C. Chen, Prithwish Tribedy, A. S. Nunes, Susumu Sato, L. K. Kosarzewski, B. K. Srivastava, W. W. Jacobs, G. Igo, P. C. Weidenkaff, Y. F. Xu, J. Fedorisin, Hao Qiu, W. Solyst, N. Xu, P. Filip, S. Zhang, Shengli Huang, L. Didenko, K. Gopal, L. Kozyra, X. Liang, J. Lauret, G. Eppley, C. Perkins, K. N. Barish, B. Xi, A. Lebedev, P. Parfenov, Robert Licenik, G. D. Westfall, Anthony Robert Timmins, K. Kauder, A. Taranenko, Isaac Mooney, J. W. Harris, M. I. Nagy, Y. F. Wu, P. V. Shanmuganathan, Y. Söhngen, T. Tarnowsky, Roland Laszlo Pinter, Yevheniia Khyzhniak, J. C. Dunlop, L. Wen, C. Fu, N. S. Lukow, H. J. Crawford, J. Pluta, A. Gupta, M. Zyzak, D. N. Svirida, R. Lednicky, Xiaoyu Liu, Qi Yang, I. G. Alekseev, David Stewart, L. Kochenda, M. A. Lisa, A. Dhamija, H. Liu, Zubayer Ahammed, Z. Tu, Zuojia Wang, N. Chankova-Bunzarova, W. Li, Skipper Kagamaster, A. A. Derevschikov, Daniel Nemes, Y. Fisyak, M. S. Abdallah, Q. H. Xu, T. Ullrich, Sevil Salur, M. M. Mondal, Lin Ma, C. E. Flores, E. G. Judd, R. Kunnawalkam Elayavalli, X. G. Luo, A. H. Tang, Pengdong Wang, Muhammad Usman Ashraf, M. J. Skoby, Frank Jm Geurts, T. Galatyuk, Rene Bellwied, D. Kapukchyan, I. Bunzarov, Sergey Voloshin, Xinyue Ju, R. Seto, Y. Huang, A. G. Knospe, Q. Y. Shou, R. E. Tribble, Jize Zhao, Y. J. Sun, Benjamin Schweid, T. J. Humanic, A. Hamed, K. Meehan, R. Pak, K. Jiang, G. Wang, C. C. Zhang, W. Zha, Y. Wang, Y. Lin, S. Kabana, Wei Xie, J. D. Nam, J. R. Adams, M. D. Harasty, T. Shao, M. Sergeeva, A. Aparin, N. Herrmann, D. Keane, H. S. Xu, D. G. Underwood, T. Truhlar, M. Csanad, M. Chevalier, Y. Pandit, N. Schmitz, H. Harrison, E. Shahaliev, Jongmin Lee, J. Putschke, Xiaofeng Zhu, Ying Liang, R. Ma, B. S. Page, J. Cheng, Avishek Chatterjee, A. Ogawa, J. Wu, D. P. Kikola, B. Stringfellow, J. G. Ball Cap, T. Ljubicic, X. H. He, W. Christie, H. Caines, S. Fazio, Zongye Zhang, I. G. Bordyuzhin, A. Quintero, Subhash Singha, Andrey Vasiliev, X.G. Li, E. C. Aschenauer, S. Margetis, Janet Elizabeth Seger, X. Dong, I. M. Deppner, D. Kalinkin, S. Heppelmann, B. J. Summa, S. Harabasz, O. Eyser, F-H. Chang, G. S. Averichev, J. Porter, C. Racz, Ivan Kisel, V. Verkest, S. Vokal, Audrey Francisco, Z. J. Zhang, Joel Anthony Mazer, S. He, D. Tlusty, Shangfeng Yang, J. H. Chen, C. J. Feng, Rajarshi Ray, Niladribihari Sahoo, Tong Liu, D. A. Morozov, J. Engelage, G. Nigmatkulov, J. M. Landgraf, D. Chen, M. Strikhanov, G. Odyniec, J. Sandweiss, A. V. Brandin, Vipul Bairathi, Irakli Chakaberia, Zhenyu Chen, Y. Yang, Jaroslav Bielcik, G. Ponimatkin, Y. Hu, O. V. Rogachevskiy, Nilay Shah, Vitaly Okorokov, Bernd Surrow, A. Ewigleben, L. S. Pinsky, K. Yip, J. S. Wang, A. Mukherjee, N. Elsey, W. B. Schmidke, C. A. Gagliardi, E. Duckworth, Madan M. Aggarwal, Fuqiang Wang, D. Zhang, S. Esumi, I. Aggarwal, J. Y. Zhang, L. V. Nogach, A. Pandav, J. B. Singh, J. M. Campbell, S. Kumar, T. G. Dedovich, and F. Videbæk
Subjects: Physics, Time projection chamber, Proton, 010308 nuclear & particles physics, Hadron, Elliptic flow, Constituent quark, 01 natural sciences, law.invention, Nuclear physics, Pion, law, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Collider, Relativistic Heavy Ion Collider
Abstract: The beam energy scan (BES) program at the BNL Relativistic Heavy Ion Collider (RHIC) was extended to energies below sNN=7.7 GeV in 2015 by successful implementation of the fixed-target mode of operation in the STAR (Solenoidal Tracker At RHIC) experiment. In this mode, ions circulate in one ring of the collider and interact with a stationary target at the entrance of the STAR time projection chamber. The first results for Au+Au collisions at sNN=4.5 GeV are presented, demonstrating good performance of all the relevant detector subsystems in fixed-target mode. Results presented here include directed and elliptic flow of identified hadrons, and radii from pion femtoscopy. The latter, together with recent HADES results, reveal a long-sought peak structure that may be caused by the system evolving through a first-order phase transition from quark-gluon plasma to the hadronic phase. Directed and elliptic flow for pions are presented for the first time at this beam energy. Pion and proton elliptic flow show behavior which hints at constituent quark scaling, and demonstrate that a definitive conclusion will be achievable using the full statistics of the ongoing second phase of BES (BES-II). In particular, BES-II to date has recorded fixed-target data sets with two orders of magnitude more events at each of nine energies between sNN=3.0 and 7.7 GeV.
Published: 2021

12. Measurement of inclusive charged-particle jet production in Au + Au collisions at sNN=200 GeV

Author: Mate Csanad, Muhammad Usman Ashraf, Chong Kim, Joel Anthony Mazer, Z. Yang, S. He, Sergey Voloshin, Anju Bhasin, C-Q. Li, Xinyue Ju, Christina Markert, H. G. Ritter, D. Tlusty, K. Jiang, Y. Wang, H. Z. Huang, S. Vokal, E. Hoffman, Rafal Sikora, M. I. Nagy, H. S. Matis, Y. F. Wu, R. Witt, S. Mioduszewski, K. Kang, Prithwish Tribedy, B. K. Srivastava, Shengli Huang, J. C. Dunlop, L. Wen, T. Niida, Audrey Francisco, Zubayer Ahammed, L. K. Kosarzewski, Y. Fisyak, Lin Ma, Y. J. Sun, W. W. Jacobs, J. B. Singh, G. Eppley, G. Agakishiev, D. Kapukchyan, J. Lauret, Q. Y. Shou, A. Lebedev, L. Adamczyk, Niladribihari Sahoo, Tong Liu, R. Pak, D. Cebra, Zhanwen Zhu, Guo-Liang Ma, J. Pluta, Yevheniia Khyzhniak, R. Lednicky, Shangfeng Yang, J. H. Chen, C. J. Feng, Rajarshi Ray, Olga Evdokimov, S. Kabana, Jay Roberts, M. Zyzak, A. V. Brandin, L. Kochenda, Z. Tu, T. G. Dedovich, Maria Zurek, Vitaly Okorokov, K. Krueger, A. Gibson, C. Zhong, P. Seyboth, D. A. Morozov, T. Edmonds, Yicheng Feng, N. Chankova-Bunzarova, W. Li, Alexander Kiselev, J. H. Thomas, Jan Vanek, Skipper Kagamaster, Vipul Bairathi, Irakli Chakaberia, J. M. Butterworth, Rene Bellwied, Wei Xie, J. C. Webb, J. D. Nam, S. Fazio, Zongye Zhang, M. S. Daugherity, M. Sergeeva, F-H. Chang, I. G. Bordyuzhin, H. W. Ke, Li Yi, L. Fulek, J. Engelage, G. Nigmatkulov, Susumu Sato, Hao Qiu, D. Kalinkin, Bernd Surrow, A. Aparin, Zhenyu Chen, R. E. Tribble, W. Solyst, Siwei Luo, S. Heppelmann, J. M. Landgraf, Xiaoyu Liu, Jize Zhao, Peng Huo, N. Schmitz, M. H. Kelsey, B. J. Summa, S. Harabasz, Y. F. Xu, Zebo Tang, E. Shahaliev, I. G. Alekseev, M. A. Lisa, D. Chen, N. Kulathunga Mudiyanselage, D. N. Svirida, G. Wang, M. Strikhanov, M. M. Mondal, E. G. Judd, H. Sako, P. Chaloupka, Ting Lin, X. Chu, N. Herrmann, Maria Stefaniak, Y. Lin, Yunlan Ji, G. S. Averichev, Jana Bielcikova, S. Ramachandran, O. Eyser, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, P. M. Jacobs, S. Trentalange, J. L. Romero, B. S. Page, N. Elsey, Avishek Chatterjee, L. V. Nogach, B. K. Chan, Michal Sumbera, A. A. P. Suaide, H. Liu, Z. Chang, G. Odyniec, J. Sandweiss, Lukas Kramarik, Catherine Tomkiel, W. Guryn, Jiangyong Jia, Sooraj Krishnan Radhakrishnan, E. Finch, Y. Yang, P. Kravtsov, Fuwang Shen, D. P. Kikola, S. W. Wissink, D. Neff, Isaac Mooney, Y. Zhang, B. Stringfellow, S. Lan, F. Seck, Nilay Shah, X. C. Chen, R. Lacey, Y. Li, M. Posik, C. Perkins, N. Magdy, Lukas Holub, Bedangadas Mohanty, X. M. Sun, A. Ewigleben, Benjamin Schweid, T. J. Humanic, Arabinda Behera, L. S. Pinsky, K. Yip, W. B. Schmidke, H. M. Spinka, P. Federic, A. Hamed, Guannan Xie, J. S. Wang, Somnath Choudhury, Z. Liu, Xuan Zhang, C. Yang, J. Porter, C. A. Gagliardi, Z. Moravcova, Y. Hong, Robert Licenik, J. Putschke, Xiaofeng Zhu, Ying Liang, F. Liu, Ivan Kisel, Miroslav Simko, A. Pandav, Anthony Robert Timmins, J. Fedorisin, I. Vassiliev, N. K. Pruthi, Adam Ryszard Kisiel, Z. J. Zhang, Mariusz Przybycien, A. Ogawa, Hanna Paulina Zbroszczyk, B. Pawlik, Frank Jm Geurts, T. Galatyuk, P. Sorensen, Joseph Kwasizur, Roland Laszlo Pinter, H. J. Crawford, M. Shao, G. Van Buren, D. G. Underwood, Jaroslav Bielcik, S. Zhang, D. Kincses, J. K. Adkins, S. S. Shi, Md. Nasim, R. D. Majka, R. Reed, Dukhishyam Mallick, J. L. Drachenberg, R. Fatemi, J. M. Nelson, W. Christie, Todd Kinghorn, W. J. Llope, C. Zhou, Y. Hu, Y. G. Ma, Alexander Jentsch, I. Upsal, O. V. Rogachevskiy, A. Attri, F. Videbæk, J. Cheng, Chitrasen Jena, M. Cherney, Xiangming Sun, Diana Pawlowska, Hua Pei, S. K. Tripathy, J. W. Harris, R. Kunnawalkam Elayavalli, N. S. Lukow, Roli Esha, Madan M. Aggarwal, Fuqiang Wang, Daniel Nemes, S. Horvat, X. G. Luo, A. H. Tang, Pengdong Wang, D. Zhang, W. Zha, S. Esumi, R. Seto, W. He, Lokesh Kumar, Jaroslav Adam, J. D. Brandenburg, Y. H. Leung, L. C. Bland, L. Didenko, K. N. Barish, P. V. Shanmuganathan, T. Tarnowsky, A. A. Derevschikov, E. P. Sichtermann, T. Ullrich, N. Xu, P. Filip, H. S. Xu, G. D. Westfall, D. Keane, E. C. Aschenauer, S. Margetis, F. G. Atetalla, X. Dong, O. D. Tsai, P. C. Weidenkaff, W. Q. Shen, K. Gopal, David Stewart, M. Chevalier, Sevil Salur, Jongmin Lee, Peng Liu, R. Ma, Y. Panebratsev, Saehanseul Oh, D. Grosnick, Z. Ye, D. Isenhower, Maowu Nie, T. Ljubicic, R. S. Longacre, X. Huang, Z. Z. Xu, X. H. He, Zhigang Xiao, A. Kechechyan, Nikita Smirnov, K. Nayak, T. Nonaka, T. Huang, Yunpeng Liu, Derek Anderson, M. L. Kabir, H. Caines, A. Quintero, N. G. Minaev, B. Kimelman, M. Tokarev, P. Szymanski, T. D. S. Stanislaus, H. H. Wieman, J. Rusnak, G. Igo, M. Kocan, L. Ruan, K. Kauder, A. Taranenko, Qi Yang, Zuojia Wang, Q. H. Xu, Subhash Singha, Andrey Vasiliev, X.G. Li, Janet Elizabeth Seger, J. R. Adams, and I. M. Deppner
Subjects: Physics, Jet (fluid), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Hadron, 01 natural sciences, Charged particle, Nuclear physics, Recoil, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Jet quenching, Event generator
Abstract: The STAR Collaboration at the Relativistic Heavy Ion Collider reports the first measurement of inclusive jet production in peripheral and central Au+Au collisions at sNN=200 GeV. Jets are reconstructed with the anti-kT algorithm using charged tracks with pseudorapidity |η
Published: 2020

13. Measurement of inclusive J/ψ polarization in p+p collisions at s=200 GeV by the STAR experiment

Author: M. Sergeeva, Qi Yang, Joel Anthony Mazer, Z. Yang, Zuojia Wang, S. He, Q. H. Xu, Guo-Liang Ma, D. Tlusty, B. S. Page, Avishek Chatterjee, Li Yi, D. P. Kikola, P. Kravtsov, Fuwang Shen, F. Videbæk, M. Chevalier, Z. Chang, Chitrasen Jena, G. Agakishiev, Diana Pawlowska, B. Stringfellow, S. Bueltmann, D. Kincses, S. Lan, F. Seck, Alexander Kiselev, Maria Stefaniak, W. Christie, Madan M. Aggarwal, Fuqiang Wang, Y. F. Xu, Jongmin Lee, D. G. Underwood, Niladribihari Sahoo, Tong Liu, D. Cebra, J. C. Dunlop, L. Wen, G. Eppley, Y. Yang, Siwei Luo, N. Magdy, Lukas Holub, M. Posik, Arabinda Behera, H. M. Spinka, H. Z. Huang, Zhigang Xiao, T. Huang, Yunpeng Liu, N. G. Minaev, X. C. Chen, Subhash Singha, Andrey Vasiliev, Somnath Choudhury, Zubayer Ahammed, W. J. Llope, C. Zhou, R. Ma, J. Porter, D. Keane, Nilay Shah, Zhanwen Zhu, Bedangadas Mohanty, S. Vokal, P. Chaloupka, B. Kimelman, X.G. Li, Robert Licenik, J. Pluta, Anthony Robert Timmins, Adam Ryszard Kisiel, Janet Elizabeth Seger, R. Kunnawalkam Elayavalli, Z. Liu, Ivan Kisel, D. N. Svirida, Zebo Tang, A. Gibson, Alexander Jentsch, Audrey Francisco, C. Zhong, Ting Lin, N. Xu, P. Filip, M. I. Nagy, Y. F. Wu, M. Zyzak, Y. Fisyak, Roland Laszlo Pinter, H. J. Crawford, S. Fazio, Zongye Zhang, N. Chankova-Bunzarova, W. Li, J. K. Adkins, Z. J. Zhang, I. M. Deppner, Q. Y. Shou, A. V. Brandin, S. Trentalange, X. M. Sun, H. Liu, D. Zhang, N. Kulathunga Mudiyanselage, R. Fatemi, Lin Ma, Todd Kinghorn, P. Sorensen, Joseph Kwasizur, J. Cheng, T. Ljubicic, X. H. He, F. G. Atetalla, A. Attri, I. G. Bordyuzhin, Y. Li, J. R. Adams, G. D. Westfall, M. H. Kelsey, I. Upsal, R. Pak, Jiangyong Jia, O. D. Tsai, Vipul Bairathi, Benjamin Schweid, T. J. Humanic, A. Hamed, J. H. Thomas, D. Kapukchyan, M. Shao, G. Van Buren, Skipper Kagamaster, H. Caines, Irakli Chakaberia, F. Liu, J. M. Butterworth, L. V. Nogach, M. Cherney, Miroslav Simko, Shangfeng Yang, S. Esumi, S. S. Shi, Mariusz Przybycien, Rene Bellwied, Hua Pei, S. K. Tripathy, A. Quintero, Peng Huo, P. C. Weidenkaff, Isaac Mooney, F-H. Chang, W. Q. Shen, K. Gopal, J. H. Chen, C. J. Feng, Rajarshi Ray, Xiaoyu Liu, R. Witt, Zhenyu Chen, J. C. Webb, C-Q. Li, G. S. Averichev, P. Federic, C. Perkins, J. M. Nelson, S. Mioduszewski, R. S. Longacre, W. Guryn, E. P. Sichtermann, B. Pawlik, H. Sako, R. E. Tribble, R. Lacey, Christina Markert, M. L. Kabir, A. Ewigleben, H. S. Matis, L. S. Pinsky, Susumu Sato, David Stewart, Md. Nasim, Y. G. Ma, Jaroslav Bielcik, M. M. Mondal, Jana Bielcikova, S. Zhang, E. G. Judd, Jize Zhao, G. Wang, R. D. Majka, J. B. Singh, Prithwish Tribedy, B. K. Srivastava, Chong Kim, K. Yip, J. S. Wang, Hao Qiu, W. Solyst, Sevil Salur, D. A. Morozov, T. Edmonds, J. L. Romero, Y. Lin, R. Seto, L. K. Kosarzewski, W. W. Jacobs, J. Fedorisin, G. Igo, Muhammad Usman Ashraf, J. Lauret, J. L. Drachenberg, Z. Ye, C. Yang, Shengli Huang, B. K. Chan, Sergey Voloshin, J. Rusnak, Peng Liu, Lukas Kramarik, Michal Sumbera, A. A. P. Suaide, Yevheniia Khyzhniak, Olga Evdokimov, Yunlan Ji, R. Lednicky, L. Kochenda, Catherine Tomkiel, Z. Tu, T. G. Dedovich, K. Kauder, A. Taranenko, Xinyue Ju, Maowu Nie, Y. Panebratsev, Saehanseul Oh, D. Grosnick, Sooraj Krishnan Radhakrishnan, Y. Hu, D. Kalinkin, E. Finch, Anju Bhasin, Donald M. Anderson, H. G. Ritter, M. Kocan, Roli Esha, Frank Jm Geurts, O. V. Rogachevskiy, S. Heppelmann, S. W. Wissink, D. Neff, Y. Zhang, Jay Roberts, Daniel Nemes, T. Ullrich, X. Huang, L. Ruan, K. Jiang, Y. Wang, D. Isenhower, S. Horvat, T. Galatyuk, Z. Z. Xu, B. J. Summa, N. Herrmann, Maria Zurek, E. Hoffman, I. G. Alekseev, K. Kang, Guannan Xie, Xuan Zhang, Y. Hong, K. Krueger, A. Kechechyan, T. Niida, M. A. Lisa, Nikita Smirnov, K. Nayak, A. Pandav, Yicheng Feng, J. Putschke, Xiaofeng Zhu, Ying Liang, Rafal Sikora, H. S. Xu, Wei Xie, A. Lebedev, L. Adamczyk, P. Seyboth, J. D. Nam, Hanna Paulina Zbroszczyk, W. Zha, K. N. Barish, A. Ogawa, Jan Vanek, T. Nonaka, Z. Moravcova, A. Aparin, S. Ramachandran, Vitaly Okorokov, O. Eyser, E. C. Aschenauer, Bernd Surrow, S. Margetis, R. Reed, N. K. Pruthi, N. Schmitz, X. Dong, E. Shahaliev, N. Elsey, P. V. Shanmuganathan, W. B. Schmidke, C. A. Gagliardi, M. Tokarev, T. Tarnowsky, P. Szymanski, T. D. S. Stanislaus, H. H. Wieman, M. S. Daugherity, A. A. Derevschikov, H. W. Ke, L. Fulek, W. He, J. D. Brandenburg, J. Engelage, G. Nigmatkulov, J. M. Landgraf, L. Didenko, D. Chen, M. Strikhanov, G. Odyniec, J. Sandweiss, I. Vassiliev, Lokesh Kumar, Jaroslav Adam, Y. H. Leung, Y. J. Sun, L. C. Bland, S. Kabana, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Dukhishyam Mallick, J. W. Harris, N. S. Lukow, X. G. Luo, A. H. Tang, Pengdong Wang, and Mate Csanad
Subjects: Physics, Quantum chromodynamics, 010308 nuclear & particles physics, 0103 physical sciences, Chatterjee, Transverse momentum, 010306 general physics, Polarization (waves), 01 natural sciences, Helicity, Mathematical physics
Abstract: Author(s): Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A; Aschenauer, EC; Ashraf, MU; Atetalla, FG; Attri, A; Averichev, GS; Bairathi, V; Barish, K; Behera, A; Bellwied, R; Bhasin, A; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Bueltmann, S; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chen, D; Chen, JH; Chen, X; Chen, Z; Cheng, J; Cherney, M; Chevalier, M; Choudhury, S; Christie, W; Crawford, HJ; Csanad, M; Daugherity, M; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; Dong, X; Drachenberg, JL; Dunlop, JC; Edmonds, T; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, A; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Fedorisin, J; Feng, CJ; Feng, Y; Filip, P; Finch, E; Fisyak, Y; Francisco, A; Fulek, L; Gagliardi, CA; Galatyuk, T; Geurts, F; Gibson, A; Gopal, K; Grosnick, D; Guryn, W; Hamad, AI | Abstract: We report on new measurements of inclusive J/ψ polarization at midrapidity in p+p collisions at s=200 GeV by the STAR experiment at the Relativistic Heavy Ion Collider. The polarization parameters, λθ, λφ, and λθφ, are measured as a function of transverse momentum (pT) in both the helicity and Collins-Soper (CS) reference frames within pTl10 GeV/c. Except for λθ in the CS frame at the highest measured pT, all three polarization parameters are consistent with 0 in both reference frames without any strong pT dependence. Several model calculations are compared with data, and the one using the Color Glass Condensate effective field theory coupled with nonrelativistic QCD gives the best overall description of the experimental results, even though other models cannot be ruled out due to experimental uncertainties.
Published: 2020

14. Large Isospin Asymmetry in Si22/O22 Mirror Gamow-Teller Transitions Reveals the Halo Structure of Al22

Author: P. F. Liang, Z. G. Hu, W H Ma, Z. Bai, F. P. Zhong, Chenyang Shi, Cheng-Jian Lin, C. G. Wu, Mi Pan, M. Wang, Guosheng Shi, N. R. Ma, Maowu Nie, X. X. Xu, P. W. Wen, P. J. Li, H. W. Wang, Q. Gao, X. Wang, Peng-Xiong Ma, J. B. Ma, H. M. Jia, JJ Liu, Yunping Wang, Z. H. Li, F. Yang, Chunlong Li, H. J. Li, S. Jin, Yichen Yang, Ran Chen, H. L. Zang, J. S. Wang, Shan Jin, Cenxi Yuan, Jie Wang, J. G. Li, Xiaojuan Zhou, Da Luo, L. Yang, D. X. Wang, Miao Liu, Qingyang Hu, Y. Z. Sun, H. Y. Wu, Xiu-Wen Ma, Jenny Lee, Q. Q. Zhao, Ke Wang, Deqing Fang, Xiuping Li, Y. Zhou, Kazunari Kaneko, L J Sun, F. F. Duan, Y. H. Lam, S H Zhong, and Mei-Rong Huang
Subjects: Physics, Silicon, media_common.quotation_subject, General Physics and Astronomy, chemistry.chemical_element, Germanium, Asymmetry, Projection (relational algebra), chemistry, Excited state, Isospin, Halo, Orbit (control theory), Atomic physics, media_common
Abstract: β-delayed one-proton emissions of ^{22}Si, the lightest nucleus with an isospin projection T_{z}=-3, are studied with a silicon array surrounded by high-purity germanium detectors. Properties of β-decay branches and the reduced transition probabilities for the transitions to the low-lying states of ^{22}Al are determined. Compared to the mirror β decay of ^{22}O, the largest value of mirror asymmetry in low-lying states by far, with δ=209(96), is found in the transition to the first 1^{+} excited state. Shell-model calculation with isospin-nonconserving forces, including the T=1, J=2, 3 interaction related to the s_{1/2} orbit that introduces explicitly the isospin-symmetry breaking force and describes the loosely bound nature of the wave functions of the s_{1/2} orbit, can reproduce the observed data well and consistently explain the observation that a large δ value occurs for the first but not for the second 1^{+} excited state of ^{22}Al. Our results, while supporting the proton-halo structure in ^{22}Al, might provide another means to identify halo nuclei.
Published: 2020

15. Strange hadron production in Au+Au collisions at sNN=7.7 , 11.5, 19.6, 27, and 39 GeV

Author: S. Fazio, I. G. Bordyuzhin, James Brandenburg, K. N. Barish, Z. Ye, T. Tarnowsky, Maowu Nie, A. Kechechyan, Pradip Kumar Sahu, Maria Stefaniak, Lukas Holub, Subhasis Chattopadhyay, Bedangadas Mohanty, F. G. Atetalla, G. Eppley, Pavol Federic, A. A. Derevschikov, Dingwei Zhang, J. Pluta, N. Chankova-Bunzarova, Muhammad Usman Ashraf, Skipper Kagamaster, Subhash Singha, Y. K. Sun, Bernd Surrow, Paul Sorensen, Rene Bellwied, Brian Page, Yifan Hong, John Nelson, Nu Xu, Raghav Kunnawalkam Elayavalli, Xiangming Sun, Kejun Kang, L. V. Nogach, Jana Bielcikova, B. Huang, Z. Moravcova, N. K. Pruthi, O. D. Tsai, Xinyue Ju, Zhen Liu, Feng Liu, Norbert Herrmann, N. Elsey, J. Putschke, Chris Perkins, K. Gopal, Lanny Ray, A. V. Brandin, Janet Elizabeth Seger, Z. Chang, I. M. Deppner, Song Zhang, Neha Shah, Zebo Tang, A. Ogawa, Takafumi Niida, Vipul Bairathi, Lokesh Kumar, C. A. Gagliardi, Hans Georg Ritter, Jeong-Hun Lee, Peifeng Liu, F. Videbæk, Dmitri Smirnov, Hal Spinka, D. P. Kikola, H. Liu, Joseph Kwasizur, C. Zhong, E. C. Aschenauer, Wen-Qing Shen, Jaroslav Adam, Madan M. Aggarwal, David Stewart, Irakli Chakaberia, B. Stringfellow, Saskia Mioduszewski, Shusu Shi, M. Tokarev, Yang Yang, Matthew Kelsey, Yuanjing Ji, J. Engelage, Robert E. Tribble, Fuqiang Wang, D. K. Mishra, L. Didenko, Y. Fisyak, Qian Yang, Xiaolong Chen, Yaping Wang, Arabinda Behera, Richard Daniel Majka, X. Dong, B. Schmidke, Liang He, Hao-jie Xu, I. K. Yoo, Xiaoyu Liu, P. Chaloupka, Ting Lin, K. Oh, Chitrasen Jena, X. Zhu, Yifei Zhang, G. Nigmatkulov, Alexandre Alarcon Do Passo Suaide, Rongrong Ma, S. W. Wissink, Miroslav Simko, Ron Longacre, Mariusz Przybycien, F. Seck, P. Szymanski, A. I. Hamad, Sedigheh Jowzaee, Isaac Upsal, Dave Underwood, Xinjie Huang, Prithwish Tribedy, B. K. Srivastava, Juan M. Romero, Sevil Salur, M. Sergeeva, Qinghua Xu, Maksym Zyzak, J. Rusnak, Christina Markert, H. H. Wieman, O. Rusnakova, H. S. Matis, Nihar Sahoo, Cheng Li, D. Kapukchyan, Declan Keane, J. M. Landgraf, M. Lomnitz, Diana Pawlowska, L. K. Kosarzewski, E. P. Sichtermann, J. Lauret, Jing-Han Chen, Qiye Shou, Shengli Huang, M. Posik, H. W. Ke, L. Fulek, M. M. Mondal, E. G. Judd, P. Seyboth, Jan Vanek, Leszek Adamczyk, Shuai Yang, J. Schambach, D. Kalinkin, Xiaofeng Luo, Guo-Liang Ma, Chensheng Zhou, Alexander Vasiliev, Yevheniia Khyzhniak, S. Stanislaus, L. Kochenda, J. W. Harris, M. Kocan, Robert Licenik, I. G. Alekseev, Anthony Robert Timmins, Adam Ryszard Kisiel, Chong Kim, Siwei Luo, Anju Bhasin, R. Seto, Jianping Cheng, Li Yi, Z. Tu, M. A. Lisa, J. C. Mei, Tetsuro Sugiura, A. J. Bassill, J. C. Dunlop, L. Wen, L. Ruan, ShinIchi Esumi, B. K. Chan, Michal Sumbera, T. Ullrich, S. Heppelmann, C. Dilks, Roland Laszlo Pinter, Xin Li, B. J. Summa, Jaroslav Bielcik, T. G. Dedovich, Dmitry Morozov, M. Strikhanov, K. Yip, Zubayer Ahammed, Joseph Adams, Catherine Tomkiel, Hank Crawford, H. Z. Huang, Kishora Nayak, Rafal Sikora, S. Kabana, Ivan Kisel, P. Kravtsov, Fuwang Shen, J. Bryslawskyj, R. Fatemi, A. Lebedev, Manuel Calderon De La Barca Sanchez, Gang Wang, I. Bunzarov, O. Matonoha, Norbert Schmitz, Z. Y. Zhang, Yu-Gang Ma, Jiangyong Jia, Todd Kinghorn, Nalinda Kulathunga Mudiyanselage, O. V. Rogachevskiy, Vitalii Okorokov, Yi Wang, T. Nonaka, T. Todoroki, Guannan Xie, Isaac Mooney, Shenghui Zhang, Ming Shao, L. C. Bland, Arghya Chatterjee, R. Lednicky, Wei Li, Justin Ewigleben, A. Gibson, G. Odyniec, J. Sandweiss, William Jacobs, Hanna Paulina Zbroszczyk, Roli Esha, Feng-Han Chang, A. K. Bhati, T. Ljubicic, Wei Xie, M. Cherney, I. Vassiliev, Chi Yang, Rosi Reed, Daniel Nemes, S. Siejka, J. H. Thomas, Yuliang Sun, Jie Zhao, H. Caines, Yi-Fei Xu, A. Quintero, A. H. Tang, Mate Csanad, Hua Pei, Nasim, D. N. Svirida, S. K. Tripathy, R. Pak, A. Aparin, S. Ramachandran, J. L. Drachenberg, Olga Evdokimov, Yuanjing Li, Niseem Magdy Abdelwahab Abdelrahman, G. S. Averichev, Zhigang Xiao, Jagbir Singh, T. Huang, Nikolai Smirnov, O. Eyser, W. J. Llope, Joel Anthony Mazer, Z. Yang, Derek Anderson, Kun Jiang, Jay Roberts, Benjamin Schweid, T. J. Humanic, Alexander Jentsch, Zhenyu Ye, N. G. Minaev, Maria Zurek, A. Attri, K. Krueger, P. Huo, D. Arkhipkin, A. Hamed, E. Shahaliev, P. Filip, Yicheng Feng, Yang Wu, Anik Gupta, R. Witt, Lei Zhang, Xiaoping Zhang, J. M. Butterworth, Sergei A. Voloshin, Spiros Margetis, Gene Van Buren, Bill Christie, J. C. Webb, D. Tlusty, A. Lipiec, Zhongbin Xu, Lukas Kramarik, Frank Jm Geurts, T. Galatyuk, Sooraj Krishnan Radhakrishnan, E. Finch, W. Zha, Peng Liu, Wlodek Guryn, S. Vokal, Yue Liang, Y. Panebratsev, W. Solyst, Saehanseul Oh, D. Grosnick, J. Porter, R. Aoyama, Samuel Heppelmann, B. Tu, Tong Liu, S. Das, K. Meehan, G. Agakishiev, S. Horvat, Roy A. Lacey, T. Edmonds, Pengfei Wang, Gary Westfall, D. Cebra, S. Trentalange, Zhanwen Zhu, Kevin Adkins, Long Ma, Yanfang Liu, J. Fedorisin, B. Pawlik, P. V. Shanmuganathan, D. Mallick, G. Igo, K. Kauder, and A. Taranenko
Subjects: Physics, Strange quark, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Strangeness production, Strangeness, 01 natural sciences, Baryon, Nuclear physics, 0103 physical sciences, Transverse mass, High Energy Physics::Experiment, Impact parameter, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We present STAR measurements of strange hadron (KS0, Λ, Λ¯, Ξ−, Ξ¯+, Ω−, Ω¯+, and ϕ) production at midrapidity (|y
Published: 2020

16. Beam energy dependence of net- Λ fluctuations measured by the STAR experiment at the BNL Relativistic Heavy Ion Collider

Author: A. Gibson, D. Kalinkin, S. Heppelmann, N. Kulathunga Mudiyanselage, B. J. Summa, Olga Evdokimov, S. Ramachandran, O. Eyser, Y. Yang, Nilay Shah, W. J. Llope, L. V. Nogach, Jay Roberts, J. Engelage, G. Nigmatkulov, Maria Zurek, J. M. Landgraf, M. Sergeeva, Jongmin Lee, C. Zhou, R. Ma, M. Strikhanov, K. Krueger, Yicheng Feng, H. Z. Huang, S. Vokal, G. Odyniec, J. Sandweiss, Mate Csanad, Joel Anthony Mazer, Z. Yang, Alexander Jentsch, J. Bryslawskyj, Lei Zhang, D. Tlusty, Shangfeng Yang, J. H. Chen, Rajarshi Ray, Niladribihari Sahoo, Tong Liu, B. S. Page, Avishek Chatterjee, Y. Hong, C. Yang, T. Ljubicic, D. P. Kikola, R. Witt, D. A. Morozov, T. Edmonds, Wei Xie, A. Attri, Y. Li, S. Mioduszewski, B. Stringfellow, A. Aparin, H. Caines, P. Federic, Prithwish Tribedy, B. K. Srivastava, Tetsuro Sugiura, Y. J. Sun, Shengli Huang, C. Dilks, Guannan Xie, A. Quintero, Xuan Zhang, S. Kabana, A. Ewigleben, K. Yip, C. Zhong, J. C. Dunlop, L. Wen, N. Schmitz, E. Shahaliev, Vitaly Okorokov, Bernd Surrow, J. M. Butterworth, N. Elsey, J. C. Webb, W. B. Schmidke, A. V. Brandin, Zebo Tang, I. Vassiliev, Zubayer Ahammed, C. A. Gagliardi, W. Solyst, J. Rusnak, Jiangyong Jia, E. P. Sichtermann, M. Kocan, Hanna Paulina Zbroszczyk, J. B. Singh, Q. Y. Shou, Madan M. Aggarwal, Fuqiang Wang, L. Ruan, J. H. Thomas, D. K. Mishra, R. Pak, Vipul Bairathi, Irakli Chakaberia, Jana Bielcikova, X. C. Chen, I. G. Alekseev, M. A. Lisa, J. C. Mei, D. Zhang, Robert Licenik, Isaac Mooney, F-H. Chang, S. Esumi, Anthony Robert Timmins, Adam Ryszard Kisiel, J. L. Romero, J. D. Brandenburg, Roland Laszlo Pinter, H. J. Crawford, J. K. Adkins, G. S. Averichev, C. Perkins, Jaroslav Bielcik, J. Porter, R. Fatemi, L. He, T. Ullrich, Lukas Kramarik, Sooraj Krishnan Radhakrishnan, G. Agakishiev, Roli Esha, Todd Kinghorn, Ivan Kisel, D. Cebra, T. G. Dedovich, I. Upsal, Zhanwen Zhu, O. V. Rogachevskiy, L. Didenko, Maria Stefaniak, E. Finch, Daniel Nemes, S. Horvat, M. Cherney, Z. Ye, H. S. Xu, Zhigang Xiao, T. Huang, Muhammad Usman Ashraf, Hua Pei, Z. Chang, S. K. Tripathy, R. Reed, K. N. Barish, Maowu Nie, F. Seck, Yunpeng Liu, M. Posik, X. Huang, A. Kechechyan, Arabinda Behera, Sergey Voloshin, H. M. Spinka, P. V. Shanmuganathan, Pradip Kumar Sahu, T. Nonaka, N. G. Minaev, Xinyue Ju, E. C. Aschenauer, J. W. Harris, T. Tarnowsky, X. M. Sun, X. G. Luo, P. Sorensen, Joseph Kwasizur, A. H. Tang, S. Margetis, K. Jiang, Pengdong Wang, M. Tokarev, Y. Wang, Y. F. Wu, N. Xu, P. Filip, M. Shao, G. Van Buren, I. Bunzarov, A. A. Derevschikov, O. Matonoha, P. Szymanski, X. Dong, T. D. S. Stanislaus, H. H. Wieman, S. S. Shi, R. Kunnawalkam Elayavalli, G. D. Westfall, S. Das, A. Gupta, Frank Jm Geurts, T. Galatyuk, D. Kapukchyan, J. M. Nelson, R. Seto, A. Lipiec, K. Meehan, Y. G. Ma, W. Zha, Lokesh Kumar, Jaroslav Adam, Peng Huo, L. C. Bland, W. Guryn, R. Lacey, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, B. K. Chan, Michal Sumbera, J. Fedorisin, A. A. P. Suaide, D. G. Underwood, Catherine Tomkiel, J. Cheng, S. W. Wissink, Y. Zhang, Dukhishyam Mallick, Xiaoyu Liu, M. M. Mondal, E. G. Judd, N. Magdy, Lukas Holub, Bedangadas Mohanty, Z. Liu, F. Videbæk, Sukalyan Chattopadhyay, Chitrasen Jena, M. Lomnitz, Diana Pawlowska, Yunlan Ji, Anju Bhasin, A. J. Bassill, K. Kang, B. Huang, T. Niida, A. Lebedev, L. Adamczyk, Guo-Liang Ma, Li Yi, R. S. Longacre, Z. Moravcova, P. Kravtsov, Fuwang Shen, Dmitry Smirnov, N. K. Pruthi, G. Igo, K. Kauder, A. Taranenko, Chong Kim, G. Eppley, Qi Yang, Donald M. Anderson, H. G. Ritter, W. Christie, Q. H. Xu, P. Chaloupka, Ting Lin, J. Pluta, M. Zyzak, Rafal Sikora, Subhash Singha, Andrey Vasiliev, J. R. Adams, S. Trentalange, P. Seyboth, N. Chankova-Bunzarova, W. Li, X.G. Li, Skipper Kagamaster, Janet Elizabeth Seger, Y. F. Xu, B. Pawlik, I. M. Deppner, J. Putschke, Jan Vanek, Rene Bellwied, Xiaofeng Zhu, Ying Liang, F. Liu, Miroslav Simko, S. Zhang, Mariusz Przybycien, R. E. Tribble, Jize Zhao, A. Ogawa, D. N. Svirida, H. Liu, Md. Nasim, R. D. Majka, J. L. Drachenberg, J. Schambach, Benjamin Schweid, T. J. Humanic, A. Hamed, H. W. Ke, L. Fulek, S. Fazio, Zongye Zhang, I. G. Bordyuzhin, M. H. Kelsey, G. Wang, C-Q. Li, Christina Markert, O. Rusnakova, H. S. Matis, L. K. Kosarzewski, N. Herrmann, W. W. Jacobs, J. Lauret, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, Z. Tu, S. Siejka, Y. Fisyak, Lin Ma, F. G. Atetalla, O. D. Tsai, W. Q. Shen, K. Gopal, David Stewart, Sevil Salur, Peng Liu, Y. Panebratsev, Saehanseul Oh, D. Grosnick, R. Aoyama, Z. Z. Xu, B. Tu, Nikita Smirnov, K. Nayak, D. Keane, and Siwei Luo
Subjects: Physics, Quantum chromodynamics, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Strangeness, Quantum number, 01 natural sciences, Hadronization, Nuclear physics, 0103 physical sciences, Rapidity, Baryon number, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: The measurements of particle multiplicity distributions have generated considerable interest in understanding the fluctuations of conserved quantum numbers in the quantum chromodynamics (QCD) hadronization regime, in particular near a possible critical point and near the chemical freeze-out. Net-protons and net-kaons have been used as proxies for the net-baryon number and net-strangeness, respectively. We report the measurement of efficiency- and centrality-bin width-corrected cumulant ratios (C2/C1, C3/C2) of net-Λ distributions, in the context of both strangeness and baryon number conservation, as a function of collision energy, centrality, and rapidity. The results are for Au+Au collisions at five beam energies (sNN=19.6, 27, 39, 62.4, and 200 GeV) recorded with the Solenoidal Tracker at RHIC (STAR). We compare our results to the Poisson and negative binomial (NBD) expectations, as well as to ultrarelativistic quantum molecular dynamics (UrQMD) and hadron resonance gas (HRG) model predictions. Both NBD and Poisson baselines agree with data within the statistical and systematic uncertainties. UrQMD describes the measured net-ΛC1 and C3 at 200 GeV reasonably well but deviates from C2, and the deviation increases as a function of collision energy. The ratios of the measured cumulants show no features of critical fluctuations. The chemical freeze-out temperatures extracted from a recent HRG calculation, which was successfully used to describe the net-proton, net-kaon, and net-charge data, indicate Λ freeze-out conditions similar to those of kaons. However, large deviations are found when comparing with temperatures obtained from net-proton fluctuations. The net-Λ cumulants show a weak but finite dependence on the rapidity coverage in the acceptance of the detector, which can be attributed to quantum number conservation.
Published: 2020

17. Underlying event measurements in p+p collisions at s=200 GeV at RHIC

Author: F. G. Atetalla, X. Zhu, Xiangming Sun, A. H. Tang, Christina Markert, Lokesh Kumar, Lawrence Pinsky, Wen-Qing Shen, H. S. Matis, Z. Chang, H. Sako, P. C. Weidenkaff, Jaroslav Adam, Lukas Holub, Bedangadas Mohanty, Siwei Luo, L. K. Kosarzewski, Y. H. Leung, D. Kincses, Saskia Mioduszewski, Shusu Shi, S. Lan, Zhongbin Xu, K. Gopal, Z. Moravcova, S. Vokal, Yue Liang, F. Seck, Lanny Ray, Robert E. Tribble, Xiaolong Chen, Arabinda Behera, B. K. Chan, Michal Sumbera, M. Posik, Benjamin Schweid, T. J. Humanic, Catherine Tomkiel, Hank Crawford, D. Neff, Lukas Kramarik, Paul Sorensen, J. Lauret, N. K. Pruthi, G. Agakishiev, A. Hamed, Audrey Francisco, Sooraj Krishnan Radhakrishnan, Rongrong Ma, Xiaoyu Liu, E. G. Judd, T. G. Dedovich, Nihar Sahoo, S. Horvat, D. Cebra, J. Rusnak, E. Finch, Yevheniia Khyzhniak, S. Trentalange, Joseph Kwasizur, S. Stanislaus, L. Kochenda, H. Liu, Z. Tu, A. I. Hamad, Sedigheh Jowzaee, Dave Underwood, Yuanjing Ji, Zhanwen Zhu, M. Kocan, L. Ruan, C. J. Feng, G. Eppley, Joseph Adams, J. Engelage, G. Nigmatkulov, F. Videbæk, James Brandenburg, Robert Licenik, Anthony Robert Timmins, Adam Ryszard Kisiel, Yi Wang, T. Nonaka, Wei Li, David Stewart, Ivan Kisel, Declan Keane, Jiangyong Jia, D. P. Kikola, Long Ma, B. Stringfellow, J. C. Dunlop, L. Wen, Isaac Upsal, Roy A. Lacey, T. Edmonds, J. Pluta, K. N. Barish, Wei Xie, J. D. Nam, Pengfei Wang, Alexander Kiselev, B. Schmidke, Chris Perkins, N. Chankova-Bunzarova, Skipper Kagamaster, Subhash Singha, S. Fazio, Chitrasen Jena, Sevil Salur, Yanfang Liu, Roland Laszlo Pinter, R. Fatemi, A. Aparin, Yifan Hong, Yu Zhang, J. W. Harris, Z. Ye, M. S. Daugherity, I. G. Bordyuzhin, J. M. Landgraf, Rene Bellwied, P. V. Shanmuganathan, D. Chen, Dmitry Morozov, Yifei Zhang, Diana Pawlowska, J. Fedorisin, Zhiwan Xu, Isaac Mooney, Shenghui Zhang, Todd Kinghorn, Maowu Nie, Song Zhang, T. Tarnowsky, Ming Shao, B. Pawlik, Zebo Tang, I. G. Alekseev, William Jacobs, E. P. Sichtermann, E. Shahaliev, H. W. Ke, Zubayer Ahammed, N. S. Lukow, M. A. Lisa, Alexander Vasiliev, L. Fulek, M. Strikhanov, D. Mallick, L. C. Bland, Xiaofeng Luo, Guo-Liang Ma, A. Kechechyan, Norbert Schmitz, M. Cherney, Yaping Wang, Rosi Reed, D. Kalinkin, Y. Xu, Marton Imre Nagy, J. H. Thomas, S. Heppelmann, Xin Li, B. J. Summa, Yuliang Sun, P. Chaloupka, I. Vassiliev, Ting Lin, Nu Xu, Li Yi, Z. P. Zhang, Hua Pei, S. K. Tripathy, G. Igo, Pavol Federic, A. A. Derevschikov, Feng-Han Chang, Gary Westfall, Raghav Kunnawalkam Elayavalli, Shu He, A. Gibson, G. Odyniec, Jing-Han Chen, Kevin Adkins, Z. Y. Zhang, Qiye Shou, Kejun Kang, L. V. Nogach, Muhammad Usman Ashraf, J. Sandweiss, S. Kabana, Chi Yang, Jian-Song Wang, Mate Csanad, Nasim, P. Kravtsov, Fuwang Shen, Peng Liu, Wlodek Guryn, Y. Panebratsev, Nalinda Kulathunga Mudiyanselage, Saehanseul Oh, D. Grosnick, Alexandre Alarcon Do Passo Suaide, Qinghua Xu, Yi-Fei Xu, X. H. He, Niseem Magdy Abdelwahab Abdelrahman, Maksym Zyzak, Z. Wang, S. Ramachandran, D. N. Svirida, Janet Elizabeth Seger, Joel Anthony Mazer, Z. Yang, O. D. Tsai, Cheng Li, D. Kapukchyan, R. Pak, Chensheng Zhou, Norbert Herrmann, Spiros Margetis, O. Eyser, Xinyue Ju, Zhen Liu, K. Kauder, A. Taranenko, Sergei A. Voloshin, Feng Liu, Kishora Nayak, Maria Stefaniak, J. Putschke, Y. Fisyak, Zhigang Xiao, D. Tlusty, Jagbir Singh, T. Huang, J. M. Butterworth, D. Isenhower, Z. Chen, J. C. Webb, Yuanjing Li, G. S. Averichev, Derek Anderson, I. M. Deppner, H. Qiu, M. Tokarev, Yang Yang, Matthew Kelsey, T. Ullrich, Hans Georg Ritter, A. Ogawa, Anju Bhasin, Roli Esha, R. Seto, Samuel Heppelmann, P. Szymanski, N. G. Minaev, Daniel Nemes, Tong Liu, Chong Kim, Xinjie Huang, B. Kimelman, Peifeng Liu, Jie Zhao, H. H. Wieman, W. Solyst, Prithwish Tribedy, B. K. Srivastava, Juan M. Romero, H. Z. Huang, Dingwei Zhang, A. Pandav, M. Chevalier, Y. Hu, E. Hoffman, Rafal Sikora, Shengli Huang, P. Filip, P. Seyboth, Hal Spinka, A. Lebedev, J. L. Drachenberg, M. Sergeeva, Jana Bielcikova, Olga Evdokimov, Annika Ewigleben, Manuel Calderon De La Barca Sanchez, Gang Wang, Jan Vanek, Leszek Adamczyk, Gene Van Buren, Susumu Sato, W. Zha, Nikolai Smirnov, Xiaoping Zhang, T. Ljubicic, Kun Jiang, J. Porter, Jay Roberts, Zhenyu Ye, Hao-jie Xu, Brian Page, Maria Zurek, H. Caines, A. V. Brandin, W. He, Bill Christie, K. Krueger, Jianping Cheng, A. Quintero, Subikash Choudhury, Yicheng Feng, Takafumi Niida, Vipul Bairathi, R. Witt, Irakli Chakaberia, Neha Shah, C. Zhong, E. C. Aschenauer, Arghya Chatterjee, L. Didenko, X. Dong, Jeong-Hun Lee, Miroslav Simko, Ron Longacre, Mariusz Przybycien, Shuai Yang, Jaroslav Bielcik, O. V. Rogachevskiy, Vitalii Okorokov, Yang Wu, Yufu Lin, Frank Jm Geurts, T. Galatyuk, Guannan Xie, R. Lednicky, Hanna Paulina Zbroszczyk, Qian Yang, Richard Daniel Majka, Y. K. Sun, Bernd Surrow, K. Yip, S. W. Wissink, ShinIchi Esumi, N. Elsey, Latiful Kabir, Yu-Gang Ma, C. A. Gagliardi, W. J. Llope, Alexander Jentsch, Madan M. Aggarwal, A. Attri, Fuqiang Wang, P. Huo, and John Nelson
Subjects: Physics, Proton, Transverse momentum, Chatterjee, Underlying event, Mathematical physics
Abstract: Author(s): Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A; Aschenauer, EC; Ashraf, MU; Atetalla, FG; Attri, A; Averichev, GS; Bairathi, V; Barish, K; Behera, A; Bellwied, R; Bhasin, A; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chen, D; Chen, JH; Chen, X; Chen, Z; Cheng, J; Cherney, M; Chevalier, M; Choudhury, S; Christie, W; Crawford, HJ; Csanad, M; Daugherity, M; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; Dong, X; Drachenberg, JL; Dunlop, JC; Edmonds, T; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, A; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Fedorisin, J; Feng, CJ; Feng, Y; Filip, P; Finch, E; Fisyak, Y; Francisco, A; Fulek, L; Gagliardi, CA; Galatyuk, T; Geurts, F; Gibson, A; Gopal, K; Grosnick, D; Guryn, W; Hamad, AI; Hamed, A | Abstract: Particle production sensitive to nonfactorizable and nonperturbative processes that contribute to the underlying event associated with a high transverse momentum (pT) jet in proton+proton collisions at s=200 GeV is studied with the STAR detector. Each event is divided into three regions based on the azimuthal angle with respect to the highest-pT jet direction: In the leading jet direction ("Toward"), opposite to the leading jet ("Away"), and perpendicular to the leading jet ("Transverse"). In the Transverse region, the average charged particle density is found to be between 0.4 and 0.6 and the mean transverse momentum
Published: 2020

18. Bulk properties of the system formed in Au+Au collisions at sNN=14.5 GeV at the BNL STAR detector

Author: A. V. Brandin, A. Gibson, C. Zhong, J. C. Dunlop, L. Wen, N. Xu, P. Filip, Z. Chang, Zubayer Ahammed, Y. Fisyak, Vipul Bairathi, G. D. Westfall, J. M. Butterworth, S. Lan, F. Seck, Lin Ma, J. C. Webb, Qi Yang, Zuojia Wang, Irakli Chakaberia, M. Posik, Y. Hong, Muhammad Usman Ashraf, Zhenyu Chen, M. Sergeeva, Q. Y. Shou, Xiaoyu Liu, A. Pandav, Guannan Xie, Arabinda Behera, H. M. Spinka, H. Sako, Jana Bielcikova, Xuan Zhang, J. L. Romero, Lukas Kramarik, Sooraj Krishnan Radhakrishnan, E. Finch, Sergey Voloshin, Q. H. Xu, Xinyue Ju, Susumu Sato, Hao Qiu, R. Pak, M. I. Nagy, Y. F. Wu, W. Solyst, Chong Kim, Somnath Choudhury, M. Tokarev, J. Rusnak, M. Kocan, Hanna Paulina Zbroszczyk, Alexander Kiselev, D. Kapukchyan, K. Jiang, Y. Wang, Mate Csanad, L. Ruan, E. G. Judd, J. Porter, F. Liu, Miroslav Simko, N. Kulathunga Mudiyanselage, Mariusz Przybycien, B. S. Page, Avishek Chatterjee, Ivan Kisel, P. Seyboth, H. G. Ritter, P. Szymanski, D. P. Kikola, J. R. Adams, Wei Xie, L. S. Pinsky, K. Yip, J. D. Nam, Joel Anthony Mazer, Z. Yang, B. Stringfellow, A. Aparin, R. Witt, Frank Jm Geurts, T. Galatyuk, Z. J. Zhang, T. D. S. Stanislaus, E. Hoffman, H. H. Wieman, Jaroslav Bielcik, S. He, R. Reed, J. S. Wang, Jan Vanek, N. Schmitz, E. Shahaliev, L. V. Nogach, Md. Nasim, Rafal Sikora, Maria Stefaniak, N. Magdy, R. D. Majka, S. Mioduszewski, Yunlan Ji, R. S. Longacre, Lukas Holub, Bedangadas Mohanty, G. Agakishiev, D. Tlusty, J. L. Drachenberg, Siwei Luo, Y. Hu, O. V. Rogachevskiy, Y. Li, Alexandre Alarcon Do Passo Suaide, I. Vassiliev, F. Videbæk, Prithwish Tribedy, B. K. Srivastava, J. H. Thomas, P. Federic, W. J. Llope, C. Zhou, P. Chaloupka, Ting Lin, Alexander Jentsch, Peng Huo, M. L. Kabir, S. Trentalange, D. Cebra, Niladribihari Sahoo, Tong Liu, W. Christie, F-H. Chang, Shengli Huang, Olga Evdokimov, Madan M. Aggarwal, Subhash Singha, Andrey Vasiliev, X.G. Li, Fuqiang Wang, D. K. Mishra, Zhigang Xiao, T. Huang, Yunpeng Liu, Derek Anderson, Z. Ye, G. Wang, G. Igo, N. G. Minaev, Maowu Nie, X. Huang, A. Kechechyan, Zhanwen Zhu, T. Nonaka, W. Guryn, A. Attri, X. M. Sun, R. Lacey, B. Kimelman, X. C. Chen, G. S. Averichev, B. Pawlik, Z. Liu, Janet Elizabeth Seger, J. B. Singh, K. Kauder, A. Taranenko, P. Sorensen, Robert Licenik, F. G. Atetalla, O. D. Tsai, D. Kalinkin, S. Heppelmann, B. J. Summa, Jay Roberts, Jiangyong Jia, Maria Zurek, Joseph Kwasizur, D. Zhang, I. M. Deppner, Anthony Robert Timmins, Anju Bhasin, Adam Ryszard Kisiel, P. C. Weidenkaff, I. G. Alekseev, Y. F. Xu, S. Esumi, K. Krueger, Zebo Tang, Isaac Mooney, K. Kang, T. Niida, M. S. Daugherity, M. Shao, G. Van Buren, Y. Yang, Vitaly Okorokov, M. A. Lisa, W. Q. Shen, K. Gopal, T. G. Dedovich, S. Zhang, A. Lebedev, L. Adamczyk, Roland Laszlo Pinter, Yicheng Feng, H. J. Crawford, J. Fedorisin, B. K. Chan, J. Engelage, Michal Sumbera, J. K. Adkins, G. Nigmatkulov, Bernd Surrow, Z. Moravcova, H. W. Ke, L. Fulek, N. Elsey, S. S. Shi, Y. J. Sun, Catherine Tomkiel, Nilay Shah, R. Fatemi, Todd Kinghorn, N. Herrmann, W. B. Schmidke, C. A. Gagliardi, S. Ramachandran, N. K. Pruthi, S. Kabana, G. Eppley, Chitrasen Jena, O. Eyser, J. M. Landgraf, J. M. Nelson, C. Perkins, H. Liu, S. W. Wissink, J. Pluta, M. Zyzak, D. Neff, Y. Zhang, I. Upsal, D. Chen, D. G. Underwood, M. Strikhanov, D. N. Svirida, Y. G. Ma, N. Chankova-Bunzarova, W. Li, Skipper Kagamaster, David Stewart, Benjamin Schweid, Rene Bellwied, T. J. Humanic, A. Hamed, R. E. Tribble, M. Cherney, H. Z. Huang, Diana Pawlowska, S. Vokal, C. Yang, Sevil Salur, G. Odyniec, J. Sandweiss, Hua Pei, Y. Lin, S. K. Tripathy, Audrey Francisco, J. Cheng, Shangfeng Yang, J. H. Chen, C. J. Feng, Rajarshi Ray, Roli Esha, D. A. Morozov, T. Edmonds, Daniel Nemes, Jie Zhao, S. Horvat, D. Keane, W. Zha, Peng Liu, Y. Panebratsev, Saehanseul Oh, D. Grosnick, D. Kincses, D. Isenhower, Z. Z. Xu, Nikita Smirnov, K. Nayak, Guo-Liang Ma, Li Yi, P. Kravtsov, Fuwang Shen, C-Q. Li, Christina Markert, H. S. Matis, L. K. Kosarzewski, W. W. Jacobs, J. Lauret, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, Z. Tu, S. Fazio, Zongye Zhang, I. G. Bordyuzhin, M. H. Kelsey, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Dukhishyam Mallick, J. Putschke, Xiaofeng Zhu, Ying Liang, J. W. Harris, A. Ogawa, N. S. Lukow, X. G. Luo, A. H. Tang, Pengdong Wang, Lokesh Kumar, Jaroslav Adam, Y. H. Leung, L. C. Bland, W. He, J. D. Brandenburg, L. Didenko, R. Kunnawalkam Elayavalli, R. Seto, K. N. Barish, E. C. Aschenauer, S. Margetis, P. V. Shanmuganathan, T. Tarnowsky, X. Dong, M. Chevalier, Jongmin Lee, R. Ma, A. A. Derevschikov, T. Ljubicic, X. H. He, H. Caines, A. Quintero, E. P. Sichtermann, T. Ullrich, H. S. Xu, and Justin Ewigleben
Subjects: Physics, 010308 nuclear & particles physics, Elliptic flow, 01 natural sciences, Spectral line, Charged particle, Nuclear physics, Pseudorapidity, 0103 physical sciences, Transverse momentum, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Beam energy, STAR detector
Abstract: We report systematic measurements of bulk properties of the system created in Au+Au collisions at sNN=14.5 GeV recorded by the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The transverse momentum spectra of π±, K±, and p(p¯) are studied at midrapidity (|y
Published: 2020

19. Beam-energy dependence of identified two-particle angular correlations in sNN=7.7–200 GeV Au+Au collisions

Author: Mate Csanad, J. B. Singh, Chitrasen Jena, Joel Anthony Mazer, Z. Yang, D. Tlusty, M. Lomnitz, Diana Pawlowska, Roli Esha, Yunlan Ji, T. G. Dedovich, Daniel Nemes, J. W. Harris, S. Horvat, N. S. Lukow, Niladribihari Sahoo, Tong Liu, B. Huang, Guo-Liang Ma, X. C. Chen, D. Kincses, X. G. Luo, B. K. Chan, Michal Sumbera, A. A. P. Suaide, Catherine Tomkiel, Jaroslav Bielcik, Z. Moravcova, Li Yi, P. Kravtsov, Fuwang Shen, B. Pawlik, A. H. Tang, Pengdong Wang, N. K. Pruthi, Y. Hu, W. Zha, P. Seyboth, I. G. Alekseev, M. A. Lisa, J. C. Mei, A. V. Brandin, O. Matonoha, O. V. Rogachevskiy, Robert Licenik, Anthony Robert Timmins, Adam Ryszard Kisiel, Qi Yang, Zuojia Wang, Q. H. Xu, C. Yang, E. P. Sichtermann, Muhammad Usman Ashraf, W. J. Llope, G. Eppley, S. Zhang, Roland Laszlo Pinter, H. J. Crawford, S. W. Wissink, D. Neff, Y. Zhang, Vipul Bairathi, Sergey Voloshin, Xinyue Ju, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, J. Putschke, Xiaofeng Zhu, Ying Liang, N. Kulathunga Mudiyanselage, J. Engelage, D. G. Underwood, Jan Vanek, Irakli Chakaberia, J. Pluta, M. Zyzak, C. Zhou, J. K. Adkins, N. Magdy, Zebo Tang, N. Chankova-Bunzarova, K. Jiang, W. Li, Skipper Kagamaster, Y. Wang, I. Vassiliev, A. Ogawa, G. Nigmatkulov, Rene Bellwied, W. Christie, R. Fatemi, J. R. Adams, Todd Kinghorn, Alexander Kiselev, D. Keane, Alexander Jentsch, Lukas Holub, Bedangadas Mohanty, Vitaly Okorokov, Z. Chang, C-Q. Li, J. Cheng, Dukhishyam Mallick, Y. F. Xu, J. M. Landgraf, Christina Markert, R. E. Tribble, O. Rusnakova, Jize Zhao, Subhash Singha, Andrey Vasiliev, Y. Li, I. Upsal, J. Rusnak, Z. Liu, Bernd Surrow, A. Attri, L. V. Nogach, T. Ullrich, Y. Lin, H. S. Matis, Peng Huo, D. Chen, L. K. Kosarzewski, C. Perkins, X.G. Li, N. Elsey, R. S. Longacre, W. W. Jacobs, G. Agakishiev, M. Strikhanov, W. Guryn, M. Cherney, Janet Elizabeth Seger, S. Lan, R. Lacey, F. Seck, J. Lauret, M. Kocan, I. M. Deppner, P. Federic, L. Ruan, Guannan Xie, P. Chaloupka, L. S. Pinsky, K. Yip, Lokesh Kumar, Ting Lin, Xuan Zhang, Anju Bhasin, F. G. Atetalla, M. L. Kabir, O. D. Tsai, Xiaoyu Liu, Z. Ye, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, Siwei Luo, D. Cebra, Hua Pei, S. K. Tripathy, H. S. Xu, A. J. Bassill, M. Posik, Z. Tu, J. Fedorisin, J. S. Wang, Jaroslav Adam, W. B. Schmidke, P. C. Weidenkaff, S. Trentalange, K. Kang, T. Niida, Hanna Paulina Zbroszczyk, C. A. Gagliardi, G. Igo, Maowu Nie, X. Huang, M. M. Mondal, Zhanwen Zhu, Y. H. Leung, M. Chevalier, A. Lebedev, L. Adamczyk, G. Odyniec, J. Sandweiss, Arabinda Behera, H. M. Spinka, Y. J. Sun, Jongmin Lee, Y. Hong, L. C. Bland, S. Fazio, Zongye Zhang, A. Kechechyan, W. Q. Shen, K. Gopal, Frank Jm Geurts, T. Galatyuk, E. G. Judd, H. Liu, K. Kauder, A. Taranenko, Madan M. Aggarwal, Fuqiang Wang, T. Nonaka, I. G. Bordyuzhin, Maria Stefaniak, Justin Ewigleben, A. Gibson, C. Zhong, M. H. Kelsey, S. Kabana, Somnath Choudhury, A. Pandav, R. Ma, K. Meehan, R. Reed, Jiangyong Jia, David Stewart, Sevil Salur, M. Sergeeva, J. Porter, D. N. Svirida, Peng Liu, Benjamin Schweid, T. J. Humanic, A. Hamed, T. Ljubicic, J. M. Butterworth, Isaac Mooney, J. C. Webb, Ivan Kisel, M. Tokarev, Y. Panebratsev, Saehanseul Oh, D. Grosnick, F. Liu, Miroslav Simko, Mariusz Przybycien, Y. Fisyak, D. Zhang, Susumu Sato, Z. J. Zhang, B. S. Page, Avishek Chatterjee, X. H. He, D. Isenhower, X. M. Sun, Z. Z. Xu, P. Sorensen, Hao Qiu, Joseph Kwasizur, D. P. Kikola, W. Solyst, S. Esumi, Nikita Smirnov, K. Nayak, B. Stringfellow, Md. Nasim, R. D. Majka, P. Szymanski, T. D. S. Stanislaus, Y. Yang, Lin Ma, J. L. Drachenberg, M. Shao, G. Van Buren, H. H. Wieman, Nilay Shah, H. Caines, A. Quintero, S. S. Shi, J. H. Thomas, Zhigang Xiao, T. Huang, F-H. Chang, J. M. Nelson, M. S. Daugherity, G. S. Averichev, Y. G. Ma, Yunpeng Liu, H. W. Ke, N. G. Minaev, L. Fulek, Chong Kim, N. Xu, Donald M. Anderson, H. G. Ritter, G. Wang, E. Hoffman, Rafal Sikora, P. Filip, G. D. Westfall, S. Das, E. C. Aschenauer, S. Margetis, X. Dong, N. Herrmann, Olga Evdokimov, Jay Roberts, Maria Zurek, K. Krueger, K. N. Barish, Yicheng Feng, P. V. Shanmuganathan, T. Tarnowsky, D. Kalinkin, A. A. Derevschikov, S. Heppelmann, B. J. Summa, J. C. Dunlop, L. Wen, Zubayer Ahammed, R. Kunnawalkam Elayavalli, S. Ramachandran, O. Eyser, Q. Y. Shou, R. Seto, R. Pak, H. Z. Huang, S. Vokal, Audrey Francisco, R. Witt, W. He, J. D. Brandenburg, S. Mioduszewski, Shangfeng Yang, J. H. Chen, C. J. Feng, Rajarshi Ray, L. Didenko, D. A. Morozov, T. Edmonds, Prithwish Tribedy, B. K. Srivastava, Shengli Huang, H. Sako, Jana Bielcikova, J. L. Romero, Lukas Kramarik, Sooraj Krishnan Radhakrishnan, E. Finch, M. I. Nagy, Y. F. Wu, D. Kapukchyan, Wei Xie, J. D. Nam, A. Aparin, N. Schmitz, E. Shahaliev, and F. Videbæk
Subjects: Physics, Proton, 010308 nuclear & particles physics, Chatterjee, Collision system, Transport theory, 01 natural sciences, Nuclear physics, Correlation function (statistical mechanics), Pion, Angular correlation, 0103 physical sciences, 010306 general physics, Beam energy
Abstract: Author(s): Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A; Aschenauer, EC; Ashraf, MU; Atetalla, FG; Attri, A; Averichev, GS; Bairathi, V; Barish, K; Bassill, AJ; Behera, A; Bellwied, R; Bhasin, A; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Butterworth, J; Caines, H; Sanchez, M Calderon de la Barca; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, F-H; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chen, D; Chen, JH; Chen, X; Cheng, J; Cherney, M; Chevalier, M; Choudhury, S; Christie, W; Crawford, HJ; Csanad, M; Das, S; Daugherity, M; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; Dong, X; Drachenberg, JL; Dunlop, JC; Edmonds, T; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Fedorisin, J; Feng, CJ; Feng, Y; Filip, P; Finch, E; Fisyak, Y; Francisco, A; Fulek, L; Gagliardi, CA; Galatyuk, T; Geurts, F; Gibson, A; Gopal, K; Grosnick, D; Guryn, W; Hamad, AI | Abstract: The two-particle angular correlation functions, $R_2$, of pions, kaons, and protons in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV were measured by the STAR experiment at RHIC. These correlations were measured for both like-sign and unlike-sign charge combinations and versus the centrality. The correlations of pions and kaons show the expected near-side ({\it i.e.}, at small relative angles) peak resulting from short-range mechanisms. The amplitudes of these short-range correlations decrease with increasing beam energy. However, the proton correlation functions exhibit strong anticorrelations in the near-side region. This behavior is observed for the first time in an A+A collision system. The observed anticorrelation is $p_{T}$-independent and decreases with increasing beam energy and centrality. The experimental results are also compared to the Monte Carlo models UrQMD, Hijing, and AMPT.
Published: 2020

20. Longitudinal eccentricity decorrelations in heavy ion collisions

Author: Jiangyong Jia, Arabinda Behera, and Maowu Nie
Subjects: Physics, Nuclear Theory, media_common.quotation_subject, Elliptic flow, FOS: Physical sciences, Eccentricity vector, Asymmetry, law.invention, Nuclear physics, Physics::Fluid Dynamics, Nuclear Theory (nucl-th), High Energy Physics - Phenomenology, Transverse plane, High Energy Physics - Phenomenology (hep-ph), law, Physics::Plasma Physics, Pseudorapidity, Eccentricity (behavior), Nuclear Experiment (nucl-ex), Collider, Nuclear Experiment, Glauber, media_common
Abstract: In heavy-ion collisions, the harmonic flow $V_n$ of final-state particles are driven by the eccentricity vector ${\mathcal{E}}_n$ that describe the shape of the initial fireball projected in the transverse plane. It is realized recently that the structure and shape of the fireball, and consequently the ${\mathcal{E}}_n$, fluctuate in pseudorapidity $\eta$ in a single event, ${\mathcal{E}}_n(\eta)$. This leads to eccentricity decorrelation between different $\eta$, driving the longitudinal flow decorrelations observed in the experiments. Using a Glauber model with a paramerterized longitudinal structure, we have estimated the eccentricity decorrelations and related them to the measured flow decorrelation coefficients for elliptic flow $n=2$ and triangular flow $n=3$. We investigated the dependence of eccentricity decorrelations on the choice of collision system in terms of the size, asymmetry and deformation of the nuclei. We found that these nuclear geometry effects lead to significant and characteristic patterns on the eccentricity decorrelations, which describe the measured ratios of the flow decorrelations between Xe+Xe and Pb+Pb collisions. These patterns can be searched for using existing experimental data at RHIC and the LHC, and if confirmed, they will provide a mean to improve our understanding of the initial state of the heavy-ion collisions., Comment: 7 pages, 5 figures
Published: 2020
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21. Energy dependence of longitudinal flow decorrelation from STAR

Author: Maowu Nie
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), 010308 nuclear & particles physics, FOS: Physical sciences, Function (mathematics), Star (graph theory), 01 natural sciences, Charged particle, Nuclear physics, Physics::Fluid Dynamics, Flow (mathematics), Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Decorrelation, Energy (signal processing)
Abstract: Measurements of longitudinal flow decorrelations for charged particles are presented in the pseudorapidity range $|\eta| < 1$ using a reference detector at 2.1 $< |\eta_{\mathrm{ref}}
Published: 2020
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22. Longitudinal double-spin asymmetry for inclusive jet and dijet production in pp collisions at s=510 GeV

Author: Yunlan Ji, I. Vassiliev, Madan M. Aggarwal, Mate Csanad, Joel Anthony Mazer, Z. Yang, G. Wang, Qi Yang, M. Sergeeva, Jaroslav Adam, B. S. Page, Avishek Chatterjee, A. V. Brandin, D. P. Kikola, B. Stringfellow, Fuqiang Wang, D. K. Mishra, J. D. Brandenburg, H. Z. Huang, S. Vokal, Q. H. Xu, Tetsuro Sugiura, Y. F. Xu, Lei Zhang, Y. J. Sun, C. Dilks, M. Tokarev, F. Videbæk, L. Didenko, N. Kulathunga Mudiyanselage, Siwei Luo, S. Kabana, L. C. Bland, B. K. Chan, Michal Sumbera, K. N. Barish, D. Tlusty, Peng Huo, P. Sorensen, P. V. Shanmuganathan, Joseph Kwasizur, Vipul Bairathi, Sukalyan Chattopadhyay, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Catherine Tomkiel, S. W. Wissink, Y. Li, Alexandre Alarcon Do Passo Suaide, Y. Zhang, J. Bryslawskyj, T. Tarnowsky, Niladribihari Sahoo, Tong Liu, Irakli Chakaberia, B. Huang, D. N. Svirida, L. V. Nogach, S. Fazio, Zongye Zhang, M. Shao, G. Van Buren, D. Zhang, S. Esumi, J. R. Adams, A. A. Derevschikov, Shangfeng Yang, S. S. Shi, I. G. Bordyuzhin, N. Herrmann, W. Guryn, B. Pawlik, Wei Xie, Yu-Gang Ma, P. Szymanski, J. H. Chen, T. D. S. Stanislaus, R. Lacey, Jiangyong Jia, J. B. Singh, A. Aparin, Jongmin Lee, Zebo Tang, S. Siejka, R. Kunnawalkam Elayavalli, P. Federic, J. M. Nelson, Dukhishyam Mallick, N. Magdy, Z. Moravcova, M. H. Kelsey, Chitrasen Jena, R. L. Ray, R. Ma, Guannan Xie, Isaac Mooney, H. H. Wieman, Jaroslav Bielcik, D. A. Morozov, T. Edmonds, Lukas Holub, Bedangadas Mohanty, N. Schmitz, J. Fedorisin, T. G. Dedovich, Xuan Zhang, X. C. Chen, S. Zhang, E. Shahaliev, J. Engelage, R. Seto, R. S. Longacre, M. Lomnitz, G. Nigmatkulov, C. Yang, N. K. Pruthi, T. Ljubicic, J. W. Harris, Hanna Paulina Zbroszczyk, D. Kalinkin, Z. Liu, Diana Pawlowska, Robert Licenik, Jana Bielcikova, Muhammad Usman Ashraf, J. M. Landgraf, Y. Fisyak, O. V. Rogachevskiy, Y. Hong, Anthony Robert Timmins, Adam Ryszard Kisiel, H. Caines, J. L. Romero, Lukas Kramarik, Sooraj Krishnan Radhakrishnan, R. Witt, S. Heppelmann, D. G. Underwood, G. Eppley, H. W. Ke, L. Fulek, A. Quintero, C. Perkins, Lin Ma, Roland Laszlo Pinter, G. Igo, K. Oh, M. Strikhanov, E. Finch, Sergey Voloshin, Xinyue Ju, J. Pluta, H. J. Crawford, J. K. Adkins, X. G. Luo, A. H. Tang, Pengdong Wang, B. J. Summa, M. Zyzak, R. Fatemi, L. He, Todd Kinghorn, K. Kauder, A. Taranenko, E. P. Sichtermann, G. Odyniec, J. Sandweiss, N. Chankova-Bunzarova, W. Li, Skipper Kagamaster, S. Mioduszewski, H. Liu, P. Seyboth, K. Jiang, Y. Wang, I. Bunzarov, I. K. Yoo, J. Cheng, Chong Kim, Y. F. Wu, I. Upsal, Jan Vanek, Y. Yang, O. Matonoha, Xiaoyu Liu, H. G. Ritter, Frank Jm Geurts, S. Ramachandran, O. Eyser, Rene Bellwied, Maria Stefaniak, T. Galatyuk, D. Kapukchyan, Rafal Sikora, M. Cherney, Nilay Shah, T. Ullrich, Vitaly Okorokov, Lokesh Kumar, Hua Pei, R. Reed, M. M. Mondal, Roli Esha, E. G. Judd, R. E. Tribble, K. Meehan, Bernd Surrow, S. K. Tripathy, Prithwish Tribedy, B. K. Srivastava, K. Yip, Daniel Nemes, Jie Zhao, S. Horvat, Benjamin Schweid, T. J. Humanic, H. S. Xu, Z. Ye, D. Arkhipkin, Guo-Liang Ma, N. Xu, P. Filip, N. Elsey, J. Putschke, Shengli Huang, Z. Chang, A. Hamed, X. M. Sun, Li Yi, Xiaofeng Zhu, Ying Liang, A. Lipiec, W. Zha, G. D. Westfall, Maowu Nie, X. Huang, W. B. Schmidke, W. J. Llope, S. Das, J. C. Dunlop, L. Wen, P. Kravtsov, Fuwang Shen, A. Gupta, C. A. Gagliardi, A. Ogawa, Dmitry Smirnov, A. Kechechyan, C. Zhou, F. Seck, Zubayer Ahammed, Pradip Kumar Sahu, T. Nonaka, C-Q. Li, M. Posik, Arabinda Behera, Alexander Jentsch, Christina Markert, O. Rusnakova, H. M. Spinka, H. S. Matis, L. K. Kosarzewski, Zhigang Xiao, T. Huang, Q. Y. Shou, W. W. Jacobs, J. Lauret, A. Attri, Yunpeng Liu, Derek Anderson, R. Pak, J. Porter, N. G. Minaev, Olga Evdokimov, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, Z. Tu, Ivan Kisel, Jay Roberts, P. Chaloupka, J. Rusnak, Ting Lin, M. Kocan, Maria Zurek, L. Ruan, K. Krueger, Yicheng Feng, S. Trentalange, J. H. Thomas, T. Todoroki, F-H. Chang, W. Christie, G. S. Averichev, Subhash Singha, Andrey Vasiliev, X.G. Li, Janet Elizabeth Seger, Justin Ewigleben, A. Gibson, C. Zhong, I. M. Deppner, J. M. Butterworth, J. C. Webb, F. Liu, Miroslav Simko, Mariusz Przybycien, Md. Nasim, R. D. Majka, J. L. Drachenberg, W. Solyst, J. Schambach, Anju Bhasin, A. J. Bassill, Peng Liu, K. Kang, T. Niida, A. Lebedev, L. Adamczyk, Y. Panebratsev, Saehanseul Oh, D. Grosnick, R. Aoyama, Z. Z. Xu, B. Tu, Nikita Smirnov, K. Nayak, F. G. Atetalla, O. D. Tsai, I. G. Alekseev, W. Q. Shen, K. Gopal, M. A. Lisa, J. C. Mei, David Stewart, Sevil Salur, A. K. Bhati, D. Keane, G. Agakishiev, D. Cebra, Zhanwen Zhu, E. C. Aschenauer, S. Margetis, and X. Dong
Subjects: Physics, 010308 nuclear & particles physics, media_common.quotation_subject, Jet (particle physics), Polarization (waves), 01 natural sciences, Asymmetry, Helicity, Gluon, Nuclear physics, Momentum, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, media_common, Spin-½
Abstract: We report the first measurement of the inclusive jet and the dijet longitudinal double-spin asymmetries, ALL, at midrapidity in polarized pp collisions at a center-of-mass energy s=510 GeV. The inclusive jet ALL measurement is sensitive to the gluon helicity distribution down to a gluon momentum fraction of x≈0.015, while the dijet measurements, separated into four jet-pair topologies, provide constraints on the x dependence of the gluon polarization. Both results are consistent with previous measurements made at s=200 GeV in the overlapping kinematic region, x>0.05, and show good agreement with predictions from recent next-to-leading order global analyses.
Published: 2019

23. Centrality and transverse momentum dependence of D0 -meson production at mid-rapidity in Au + Au collisions at sNN=200 GeV

Author: M. Calderon De La Barca Sanchez, A. I. Hamad, Chong Kim, Sedigheh Jowzaee, J. L. Romero, Madan M. Aggarwal, M. A. Szelezniak, H. G. Ritter, Xiaofeng Luo, Fuqiang Wang, Benjamin Schweid, J. L. Drachenberg, D. K. Mishra, Guo-Liang Ma, Rafal Sikora, Tetsuro Sugiura, D. Arkhipkin, Nasim, A. Hamed, Olga Evdokimov, J. Rusnak, A. F. Kraishan, Lukas Kramarik, E. Finch, M. Kocan, D. Kalinkin, Li Yi, Jorn Henning Putschke, Y. J. Sun, I. Upsal, L. Ruan, A. V. Brandin, C. Dilks, J. Porter, A. Vossen, Y. Wang, Y. Fisyak, Jay Roberts, A. S. Hirsch, P. Kravtsov, D. Zhang, Fuwang Shen, A. M. Schmah, W. Christie, Ivan Kisel, Maksym Zyzak, Maria Zurek, S. Esumi, Vipul Bairathi, K. Oh, H. W. Ke, T. Todoroki, J. C. Webb, L. C. Bland, Giacomo Contin, K. Kauder, Chi Yang, D. N. Svirida, L. Zhang, Justin Ewigleben, G. Odyniec, C. Zhong, Wei Xie, Nihar Sahoo, Andrey Vasiliev, R. Seto, A. Aparin, G. Eppley, I. Vassiliev, J. C. Dunlop, L. Wen, S. L. Huang, T. J. Humanic, D. L. Olvitt, Anik Gupta, Jaroslav Bielcik, S. K. Radhakrishnan, L. Fulek, J. Pluta, R. S. Longacre, Robert Licenik, P. Szymanski, X.G. Li, E. P. Sichtermann, Anthony Robert Timmins, Adam Ryszard Kisiel, N. Chankova-Bunzarova, W. Li, Frank Jm Geurts, Zubayer Ahammed, N. Schmitz, K. N. Barish, Skipper Kagamaster, J. Engelage, Shize Yang, Janet Elizabeth Seger, Roland Laszlo Pinter, H. J. Crawford, Jaroslav Adam, L. Ma, O. V. Rogachevskiy, A. Quintero, J. Y. Zhang, T. Galatyuk, B. S. Page, Maowu Nie, E. Shahaliev, N. Xu, Rene Bellwied, G. Nigmatkulov, D. P. Kikola, X. Huang, A. Kechechyan, R. E. Tribble, B. Stringfellow, I. M. Deppner, J. K. Adkins, J. R. Adams, P. V. Shanmuganathan, F. Seck, Q. Y. Shou, J. M. Landgraf, Pradip Kumar Sahu, T. Nonaka, P. Chaloupka, W. Solyst, C. Zhou, K. Meehan, M. Posik, R. Fatemi, L. He, Todd Kinghorn, F. Videbæk, P. Filip, K. Krueger, Ting Lin, R. Pak, Z. J. Xu, Arabinda Behera, H. M. Spinka, D. Mallick, Xiangming Sun, Vitaly Okorokov, M. Strikhanov, Sukalyan Chattopadhyay, David Brown, G. Wang, J. Kvapil, A. A. Derevschikov, H. Qiu, Bernd Surrow, S. Trentalange, R. Witt, J. W. Harris, J. Sandweiss, M. Tokarev, G. D. Westfall, Zebo Tang, J. H. Thomas, N. Elsey, Nilay Shah, G. Igo, S. Mioduszewski, N. K. Pruthi, M. Cherney, I. G. Alekseev, D. Kapukchyan, Z. Chang, Lokesh Kumar, Hua Pei, M. A. Lisa, J. C. Mei, W. B. Schmidke, Jana Bielcikova, Prithwish Tribedy, B. K. Srivastava, S. K. Tripathy, Leo Clifford Greiner, M. Kelsey, F-H. Chang, Q. Yang, C. A. Gagliardi, F. Liu, K. Yip, P. Sorensen, T. D. S. Stanislaus, T. Ullrich, H. H. Wieman, C. Perkins, L. Krauth, J. D. Brandenburg, N. Herrmann, S. Siejka, Mariusz Przybycien, G. S. Averichev, Y. Yang, J. Bryslawskyj, B. Pawlik, A. Gibson, S. Zhang, J. Butterworth, Z. Ye, L. Didenko, I. Chakaberia, P. Seyboth, Y. F. Xu, J. Lidrych, Jan Vanek, Leszek Adamczyk, P. Federic, Q. H. Xu, A. H. Tang, Pengdong Wang, S. Fazio, Xuliang Chen, B. Huang, R. D. Majka, E. C. Aschenauer, I. Bunzarov, S. Margetis, O. Matonoha, X. Dong, G. Agakishiev, D. S. Gunarathne, J. Schambach, Zhigang Xiao, T. Huang, D. Cebra, Zhanwen Zhu, H. Xu, Anju Bhasin, S. Kabana, G. Xie, A. J. Bassill, Yunpeng Liu, Derek Anderson, Jongmin Lee, R. L. Ray, K. Kang, T. Niida, R. Ma, A. Lebedev, N. G. Minaev, T. Ljubicic, Niseem Magdy, H. Caines, M. Lomnitz, Siwei Luo, Joseph Kwasizur, Jiangyong Jia, M. Shao, G. Van Buren, Isaac Mooney, S. S. Shi, Muhammad Usman Ashraf, Sergey Voloshin, Xinyue Ju, K. Jiang, Jasvinder A. Singh, Yanjun Wu, M. Sergeeva, Arkadiy Taranenko, D. G. Underwood, J. Cheng, Arka Chatterjee, Peng Huo, A. Harlenderova, M. K. Mustafa, W. Guryn, R. Lacey, Y. Li, S. Singha, Alexandre Alarcon Do Passo Suaide, J. Fedorisin, M. M. Mondal, Roli Esha, Daniel Nemes, Jie Zhao, S. Horvat, M. Simko, A. Lipiec, W. Zha, Lukas Holub, Bedangadas Mohanty, C-Q. Li, Christina Markert, D. Smirnov, O. Rusnakova, H. S. Matis, Z. Moravcova, W. W. Jacobs, J. Lauret, R. Lednicky, L. Kochenda, T. Tarnowsky, M. Csanad, Xiaofeng Zhu, Ying Liang, A. Ogawa, T. G. Dedovich, I. K. Yoo, Zongye Zhang, Y. Guo, I. G. Bordyuzhin, Xiaoyu Liu, J. A. Mazer, N. Kulathunga Mudiyanselage, L. V. Nogach, Sumit R. Das, C. E. Flores, E. G. Judd, Y. Hong, Zhaoping Liu, B. K. Chan, Michal Sumbera, Catherine Tomkiel, S. W. Wissink, Y. Zhang, H. Z. Huang, S. Vokal, F. G. Atetalla, O. D. Tsai, J. H. Chen, D. A. Morozov, T. Edmonds, W. Q. Shen, B. J. Summa, H. Liu, David Stewart, Sevil Salur, Y. Panebratsev, Saehanseul Oh, D. Grosnick, S. Ramachandran, O. Eyser, Samuel Heppelmann, B. Tu, K. Nayak, A. K. Bhati, D. Keane, Nikolai Smirnov, L. G. Efimov, Yu-Gang Ma, L. K. Kosarzewski, J. M. Nelson, W. J. Llope, Alexander Jentsch, A. Attri, P. Liu, Xuan Zhang, R. Aoyama, Hanna Paulina Zbroszczyk, R. Kunnawalkam Elayavalli, and R. Reed
Subjects: Physics, Quark, Particle physics, Strange quark, Meson, 010308 nuclear & particles physics, Hadron, Kinetic energy, 01 natural sciences, Spectral line, Charm quark, 0103 physical sciences, Rapidity, 010306 general physics
Abstract: Author(s): Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aoyama, R; Aparin, A; Arkhipkin, D; Aschenauer, EC; Ashraf, MU; Atetalla, F; Attri, A; Averichev, GS; Bairathi, V; Barish, K; Bassill, 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; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, HJ; Csanad, M; Das, S; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Dunlop, JC; Edmonds, T; Efimov, LG; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Fedorisin, J; Filip, P; Finch, E; Fisyak, Y; Flores, CE; Fulek, L; Gagliardi, CA; Galatyuk, T; Geurts, F; Gibson, A | Abstract: We report a new measurement of D0-meson production at mid-rapidity (|y|l1) in Au + Au collisions at sNN=200GeV utilizing the heavy flavor tracker, a high resolution silicon detector at the STAR experiment. Invariant yields of D0 mesons with transverse momentum pT9GeV/c are reported in various centrality bins (0-10%, 10-20%, 20-40%, 40-60%, and 60-80%). Blast-wave thermal models are used to fit the D0-meson pT spectra to study D0 hadron kinetic freeze-out properties. The average radial flow velocity extracted from the fit is considerably smaller than that of light hadrons (π,K, and p), but comparable to that of hadrons containing multiple strange quarks (φ,Ξ-), indicating that D0 mesons kinetically decouple from the system earlier than light hadrons. The calculated D0 nuclear modification factors reaffirm that charm quarks suffer a large amount of energy loss in the medium, similar to those of light quarks for pTg4GeV/c in central 0-10% Au + Au collisions. At low pT, the nuclear modification factors show a characteristic structure qualitatively consistent with the expectation from model predictions that charm quarks gain sizable collective motion during the medium evolution. The improved measurements are expected to offer new constraints to model calculations and help gain further insights into the hot and dense medium created in these collisions.
Published: 2019

24. Measurement of the longitudinal spin asymmetries for weak boson production in proton-proton collisions at s=510 GeV

Author: Y. K. Sun, Bernd Surrow, I. G. Alekseev, M. A. Lisa, J. C. Mei, N. Elsey, G. Eppley, Long Ma, Peifeng Liu, J. Pluta, C. A. Gagliardi, Guannan Xie, Yanfang Liu, R. Lednicky, J. Bryslawskyj, N. Chankova-Bunzarova, Skipper Kagamaster, Subhash Singha, Justin Ewigleben, J. Fedorisin, T. Nonaka, Christina Markert, A. Gibson, G. Odyniec, Mate Csanad, Anju Bhasin, O. Rusnakova, Nasim, L. C. Bland, T. Ljubicic, H. S. Matis, Hanna Paulina Zbroszczyk, B. Pawlik, L. K. Kosarzewski, Chris Perkins, Joel Anthony Mazer, Rene Bellwied, A. J. Bassill, Liang He, Alexandre Alarcon Do Passo Suaide, Lukas Holub, Bedangadas Mohanty, Isaac Upsal, J. Lauret, H. Caines, A. Quintero, A. Aparin, Jaroslav Bielcik, J. Rusnak, Z. Chang, J. M. Butterworth, S. Stanislaus, L. Kochenda, Yaping Wang, J. C. Webb, Spiros Margetis, T. Niida, A. F. Kraishan, M. Kocan, Jie Zhang, Saskia Mioduszewski, Shusu Shi, Xiaofeng Luo, F. Seck, Guo-Liang Ma, E. Shahaliev, Dingwei Zhang, A. Lebedev, W. Solyst, John Nelson, O. V. Rogachevskiy, Vitalii Okorokov, A. H. Tang, Feng-Han Chang, Muhammad Usman Ashraf, Neha Shah, L. Ruan, Pavol Federic, Alexander Vasiliev, Li Yi, M. Posik, Tetsuro Sugiura, J. L. Drachenberg, Olga Evdokimov, M. Tokarev, Yang Yang, Matthew Kelsey, Gary Westfall, Arghya Chatterjee, Xiangming Sun, Kevin Adkins, B. Huang, C. Zhong, E. C. Aschenauer, Norbert Herrmann, Chi Yang, P. Kravtsov, G. Agakishiev, D. S. Gunarathne, Kun Jiang, J. Putschke, C. Dilks, S. W. Wissink, Wen-Qing Shen, Jaroslav Adam, Kejun Kang, S. Das, S. Horvat, Jana Bielcikova, Madan M. Aggarwal, Fuqiang Wang, S. Kabana, Z. Moravcova, Jeong-Hun Lee, O. D. Tsai, A. Ogawa, D. Cebra, Nalinda Kulathunga Mudiyanselage, Xinyue Ju, S. Trentalange, Zhen Liu, L. V. Nogach, T. Todoroki, Jay Roberts, Zhenyu Ye, D. K. Mishra, X. Dong, Maria Zurek, ShinIchi Esumi, Benjamin Schweid, Manuel Calderon De La Barca Sanchez, P. Szymanski, Zhanwen Zhu, Gang Wang, Robert E. Tribble, J. H. Thomas, Yuliang Sun, T. J. Humanic, Jiangyong Jia, D. Arkhipkin, A. Hamed, N. K. Pruthi, D. N. Svirida, S. Fazio, K. Krueger, I. G. Bordyuzhin, Joseph Kwasizur, J. Engelage, D. L. Olvitt, Miroslav Simko, Ron Longacre, Mariusz Przybycien, Paul Sorensen, G. Nigmatkulov, Cheng Li, D. Kapukchyan, I. K. Yoo, Subhasis Chattopadhyay, Yicheng Feng, A. Vossen, H. H. Wieman, Xiaolong Chen, Arabinda Behera, Xiaoyu Liu, J. W. Harris, R. Witt, Yu-Gang Ma, Roli Esha, E. P. Sichtermann, W. J. Llope, G. S. Averichev, Shuai Yang, J. M. Landgraf, I. Vassiliev, J. C. Dunlop, L. Wen, Daniel Nemes, Jie Zhao, Zhongbin Xu, Jing-Han Chen, Qiye Shou, Dmitry Morozov, J. Schambach, Alexander Jentsch, Ivan Kisel, Zubayer Ahammed, M. Strikhanov, Norbert Schmitz, F. Videbæk, M. M. Mondal, C. E. Flores, E. G. Judd, D. P. Kikola, A. Attri, Wei Li, Z. Ye, Yuanjing Li, Dmitri Smirnov, B. Stringfellow, Chensheng Zhou, A. Lipiec, Lukas Kramarik, Maowu Nie, L. Zhang, P. Huo, Sooraj Krishnan Radhakrishnan, E. Finch, Chong Kim, Niseem Magdy Abdelwahab Abdelrahman, M. Sergeeva, Kishora Nayak, W. Zha, Zhigang Xiao, Jagbir Singh, T. Huang, J. Porter, Nu Xu, Raghav Kunnawalkam Elayavalli, J. Sandweiss, A. Kechechyan, Pradip Kumar Sahu, B. K. Chan, Michal Sumbera, Yifei Zhang, P. Chaloupka, Yi-Fei Xu, Derek Anderson, Janet Elizabeth Seger, Ting Lin, I. Bunzarov, O. Matonoha, M. Lomnitz, I. M. Deppner, N. G. Minaev, Catherine Tomkiel, Hank Crawford, T. Ullrich, H. Z. Huang, Yi Wang, R. Pak, Siwei Luo, Feng Liu, A. I. Hamad, Sedigheh Jowzaee, P. Filip, Dave Underwood, Rafal Sikora, Gene Van Buren, Bill Christie, Hans Georg Ritter, Declan Keane, Xinjie Huang, Joseph Adams, Prithwish Tribedy, B. K. Srivastava, Juan M. Romero, Shengli Huang, T. G. Dedovich, Isaac Mooney, Shenghui Zhang, William Jacobs, B. Schmidke, Alena Harlenderova, H. W. Ke, L. Fulek, Yang Wu, Anik Gupta, Frank Jm Geurts, T. Galatyuk, K. Meehan, Jindrich Lidrych, Yifan Hong, Song Zhang, Zebo Tang, K. Yip, Giacomo Contin, Rongrong Ma, Nihar Sahoo, Robert Licenik, Anthony Robert Timmins, Adam Ryszard Kisiel, Roland Laszlo Pinter, R. Fatemi, Todd Kinghorn, Brian Page, Ming Shao, M. Cherney, Rosi Reed, Lokesh Kumar, A. V. Brandin, Hua Pei, S. K. Tripathy, Vipul Bairathi, Irakli Chakaberia, Y. Fisyak, K. Oh, Qian Yang, Richard Daniel Majka, D. Kalinkin, S. Heppelmann, Xin Li, B. J. Summa, S. Siejka, Z. Y. Zhang, P. Seyboth, Jan Vanek, Leszek Adamczyk, S. Ramachandran, O. Eyser, Jianping Cheng, Sergei A. Voloshin, S. Vokal, Yue Liang, Wei Xie, Hal Spinka, Hao-jie Xu, Roy A. Lacey, T. Edmonds, Pengfei Wang, P. V. Shanmuganathan, D. Mallick, G. Igo, K. Kauder, A. Taranenko, F. G. Atetalla, Alexander Schmah, Lanny Ray, H. Liu, David Stewart, Jakub Kvapil, Sevil Salur, A. K. Bhati, Nikolai Smirnov, Xiaoping Zhang, L. G. Efimov, L. Didenko, Peng Liu, Wlodek Guryn, Y. Panebratsev, Saehanseul Oh, D. Grosnick, R. Aoyama, Samuel Heppelmann, B. Tu, Qinghua Xu, Maksym Zyzak, D. D. Brown, R. Seto, James Brandenburg, K. N. Barish, T. Tarnowsky, Xianglei Zhu, and A. A. Derevschikov
Subjects: Physics, Quark, Particle physics, Proton, 010308 nuclear & particles physics, Drell–Yan process, 01 natural sciences, Helicity, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Spin-½, Boson
Abstract: We report new STAR measurements of the single-spin asymmetries $A_L$ for $W^+$ and $W^-$ bosons produced in polarized proton--proton collisions at $\sqrt{s}$ = 510 GeV as a function of the decay-positron and decay-electron pseudorapidity. The data were obtained in 2013 and correspond to an integrated luminosity of 250 pb$^{-1}$. The results are combined with previous results obtained with 86 pb$^{-1}$. A comparison with theoretical expectations based on polarized lepton-nucleon deep-inelastic scattering and prior polarized proton--proton data suggests a difference between the $\bar{u}$ and $\bar{d}$ quark helicity distributions for $0.05 < x < 0.25$. In addition, we report new results for the double-spin asymmetries $A_{LL}$ for $W^\pm$, as well as $A_L$ for $Z/\gamma^*$ production and subsequent decay into electron--positron pairs.
Published: 2019

25. Beam energy dependence of (anti-)deuteron production in Au + Au collisions at the BNL Relativistic Heavy Ion Collider

Author: Yang Wu, Anik Gupta, Frank Jm Geurts, T. Galatyuk, B. K. Chan, Michal Sumbera, Catherine Tomkiel, Hank Crawford, D. Mallick, Paul Sorensen, K. Meehan, D. Kalinkin, P. Chaloupka, Ting Lin, G. Igo, S. Heppelmann, Xin Li, B. J. Summa, Gary Westfall, Peng Liu, Wlodek Guryn, Z. Y. Zhang, Y. Panebratsev, Saehanseul Oh, D. Grosnick, K. Kauder, A. Taranenko, K. Yip, Siwei Luo, Zhongbin Xu, H. W. Ke, L. Fulek, D. P. Kikola, R. Aoyama, Mariusz Przybycien, Lukas Kramarik, Xiaofeng Luo, S. Ramachandran, O. Eyser, B. Stringfellow, Sooraj Krishnan Radhakrishnan, R. Fatemi, Todd Kinghorn, Long Ma, Joseph Adams, Jiangyong Jia, T. G. Dedovich, A. H. Tang, Sergei A. Voloshin, E. Finch, Maria Stefaniak, Guo-Liang Ma, Li Yi, Samuel Heppelmann, B. Tu, Ming Shao, Feng Liu, Yifan Hong, Song Zhang, Zebo Tang, Isaac Upsal, Xiangming Sun, Yanfang Liu, J. Fedorisin, Isaac Mooney, Shenghui Zhang, Benjamin Schweid, T. J. Humanic, D. Arkhipkin, W. J. Llope, I. G. Bordyuzhin, S. Vokal, Yue Liang, J. Bryslawskyj, Yi Wang, T. Nonaka, Wei Li, M. Cherney, Rosi Reed, Lokesh Kumar, Hal Spinka, Hans Georg Ritter, A. I. Hamad, William Jacobs, Sedigheh Jowzaee, Alexander Jentsch, Dave Underwood, Chris Perkins, Wei Xie, A. K. Bhati, Z. Moravcova, Robert E. Tribble, Nikolai Smirnov, Xiaoping Zhang, A. Attri, Alexander Vasiliev, Tetsuro Sugiura, Muhammad Usman Ashraf, T. Ljubicic, P. Huo, Qinghua Xu, Kejun Kang, L. V. Nogach, Hua Pei, S. K. Tripathy, N. K. Pruthi, O. D. Tsai, Xinyue Ju, Zhen Liu, S. W. Wissink, S. Kabana, E. Shahaliev, F. G. Atetalla, Prithwish Tribedy, B. K. Srivastava, Juan M. Romero, X. Zhu, Maksym Zyzak, Z. Ye, Mate Csanad, Lanny Ray, Nu Xu, Raghav Kunnawalkam Elayavalli, Nasim, Maowu Nie, P. Kravtsov, Shengli Huang, Declan Keane, A. Kechechyan, H. Liu, Hao-jie Xu, David Stewart, ShinIchi Esumi, J. C. Dunlop, L. Wen, Janet Elizabeth Seger, Roy A. Lacey, T. Edmonds, Pengfei Wang, Sevil Salur, I. M. Deppner, G. Eppley, R. Seto, E. P. Sichtermann, Rongrong Ma, I. K. Yoo, Xiaoyu Liu, M. Sergeeva, Roli Esha, Daniel Nemes, Jie Zhao, Peifeng Liu, Nalinda Kulathunga Mudiyanselage, Joel Anthony Mazer, Brian Page, Lei Zhang, Spiros Margetis, Zubayer Ahammed, Cheng Li, D. Kapukchyan, Nihar Sahoo, A. V. Brandin, Norbert Schmitz, J. Pluta, N. Chankova-Bunzarova, V. A. Okorokov, Skipper Kagamaster, Subhash Singha, Chong Kim, Yu-Gang Ma, Anju Bhasin, H. Z. Huang, Manuel Calderon De La Barca Sanchez, Gang Wang, James Brandenburg, K. N. Barish, Christina Markert, Rafal Sikora, Guannan Xie, Chensheng Zhou, R. Bellwied, E. G. Judd, Takafumi Niida, Vipul Bairathi, Liang He, Robert Licenik, Anthony Robert Timmins, Adam Ryszard Kisiel, R. Lednicky, L. C. Bland, A. Lipiec, Yi-Fei Xu, M. Tokarev, Yang Yang, Matthew Kelsey, Feng-Han Chang, Qian Yang, Roland Laszlo Pinter, Hanna Paulina Zbroszczyk, H. S. Matis, D. Tlusty, A. Lebedev, R. Pak, T. Tarnowsky, T. Ullrich, Richard Daniel Majka, D. N. Svirida, J. L. Drachenberg, Olga Evdokimov, A. Hamed, Kun Jiang, A. A. Derevschikov, Jay Roberts, J. Porter, P. Szymanski, Maria Zurek, Dingwei Zhang, L. K. Kosarzewski, Lukas Holub, Bedangadas Mohanty, F. Videbæk, Tong Liu, H. H. Wieman, Arghya Chatterjee, K. Krueger, Yicheng Feng, R. Witt, Joseph Kwasizur, J. Lauret, Neha Shah, Jaroslav Adam, Jeong-Hun Lee, L. Didenko, I. Chakaberia, Yaping Wang, C. Zhong, Yevheniia Khyzhniak, S. Stanislaus, L. Kochenda, Xiaolong Chen, Miroslav Simko, Ron Longacre, Yuanjing Ji, J. Engelage, Alexandre Alarcon Do Passo Suaide, Arabinda Behera, X. Dong, Jing-Han Chen, Qiye Shou, J. W. Harris, Yifei Zhang, Shuai Yang, J. M. Landgraf, J. Schambach, Dmitry Morozov, Diana Pawlowska, Norbert Herrmann, J. Putschke, M. Strikhanov, H. Caines, A. Ogawa, J. Sandweiss, Kishora Nayak, J. Rusnak, Subhasis Chattopadhyay, M. Kocan, L. Ruan, I. Bunzarov, O. Matonoha, Jana Bielcikova, P. Filip, Gene Van Buren, Bill Christie, I. Vassiliev, Niseem Magdy Abdelwahab Abdelrahman, Zhigang Xiao, Jagbir Singh, T. Huang, Derek Anderson, N. G. Minaev, I. G. Alekseev, M. A. Lisa, G. Agakishiev, S. Horvat, D. Cebra, S. Trentalange, Zhanwen Zhu, Justin Ewigleben, G. Odyniec, J. C. Webb, W. Solyst, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, Ivan Kisel, Y. K. Sun, Bernd Surrow, N. Elsey, J. H. Thomas, Yuliang Sun, C. A. Gagliardi, Jaroslav Bielcik, Yuanjing Li, G. S. Averichev, O. V. Rogachevskiy, Saskia Mioduszewski, Shusu Shi, F. Seck, M. Posik, S. Siejka, P. Seyboth, Jan Vanek, P. Federic, Jianping Cheng, Y. Fisyak, and K. Oh
Subjects: Physics, 010308 nuclear & particles physics, Equation of state (cosmology), 01 natural sciences, REAÇÕES NUCLEARES, Nuclear physics, Baryon, Deuterium, 0103 physical sciences, Transverse momentum, Quark–gluon plasma, Production (computer science), 010306 general physics, Relativistic Heavy Ion Collider, Beam energy
Abstract: Author(s): Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aoyama, R; Aparin, A; Arkhipkin, D; Aschenauer, EC; Ashraf, MU; Atetalla, F; Attri, A; Averichev, GS; Bairathi, V; Barish, K; Bassill, AJ; Behera, A; Bellwied, R; Bhasin, A; Bhati, AK; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Bryslawskyj, J; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; Cheng, J; Cherney, M; Christie, W; Crawford, HJ; Csanad, M; Das, S; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Dunlop, JC; Edmonds, T; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Fedorisin, J; Feng, Y; Filip, P; Finch, E; Fisyak, Y; Fulek, L; Gagliardi, CA; Galatyuk, T; Geurts, F; Gibson, A; Grosnick, D; Gupta, A; Guryn, W | Abstract: We report the energy dependence of mid-rapidity (anti-)deuteron production in Au+Au collisions at sNN=7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV, measured by the STAR experiment at the BNL Relativistic Heavy Ion Collider. The yield of deuterons is found to be well described by the thermal model. The collision energy, centrality, and transverse momentum dependence of the coalescence parameter B2 are discussed. We find that the values of B2 for antideuterons are systematically lower than those for deuterons, indicating that the correlation volume of antibaryons is larger than that of baryons at sNN from 19.6 to 39 GeV. In addition, values of B2 are found to vary with collision energy and show a broad minimum around sNN=20-40 GeV, which might imply a change of the equation of state of the medium in these collisions.
Published: 2019

26. Low- pT e+e− Pair Production in Au+Au Collisions at sNN=200 GeV and U+U Collisions at sNN=193 GeV at STAR

Author: Xiaofeng Luo, Arka Chatterjee, Guo-Liang Ma, Li Yi, Xiangming Sun, J. K. Adkins, R. Fatemi, L. He, Jongmin Lee, R. L. Ray, Shaji Kumar, Todd Kinghorn, K. Krueger, R. Ma, A. S. Hirsch, Zongye Zhang, Vitaly Okorokov, Y. Guo, Y. Li, S. Singha, Alexandre Alarcon Do Passo Suaide, A. K. Bhati, D. Keane, P. Kravtsov, Fuwang Shen, A. M. Schmah, I. Kisel, Bernd Surrow, I. G. Bordyuzhin, T. Ljubicic, I. G. Alekseev, N. K. Pruthi, Nikolai Smirnov, J. Bryslawskyj, M. A. Lisa, J. C. Mei, Xuan Zhang, Niseem Magdy, H. Caines, M. Lomnitz, N. Elsey, D. Mayes, L. G. Efimov, J. L. Drachenberg, M. Cherney, Lokesh Kumar, R. Aoyama, Z. Chang, Hua Pei, W. B. Schmidke, G. Eppley, Hanna Paulina Zbroszczyk, Q. H. Xu, Nasim, P. Federic, S. K. Tripathy, J. A. Mazer, Justin Ewigleben, G. Odyniec, C. A. Gagliardi, J. Xu, J. Lidrych, Olga Evdokimov, J. Pluta, J. R. Adams, W. Solyst, H. Z. Huang, G. Agakishiev, D. S. Gunarathne, D. Cebra, S. Vokal, Shize Yang, N. Chankova-Bunzarova, W. Li, A. Taranenko, Zhanwen Zhu, I. K. Yoo, C. Zhong, E. C. Aschenauer, S. Kabana, S. Margetis, Anik Gupta, G. Wang, B.R. Schweid, X. Dong, R. Reed, Giacomo Contin, L. Ma, F. Seck, Madan M. Aggarwal, Fuqiang Wang, Rene Bellwied, F. Videbæk, M. Posik, D. K. Mishra, Zhigang Xiao, T. Huang, Jay Roberts, Z. Ye, J. H. Chen, Jaroslav Adam, H. M. Spinka, Frank Jm Geurts, T. Galatyuk, R. E. Tribble, Nihar Sahoo, C. E. Flores, E. G. Judd, Anju Bhasin, Y. Panebratsev, Saehanseul Oh, Maowu Nie, D. Kalinkin, E. P. Sichtermann, P. Federicova, D. Grosnick, D. A. Morozov, X. Huang, A. Kechechyan, Yunpeng Liu, Derek Anderson, Xiaofeng Zhu, Ying Liang, Sukalyan Chattopadhyay, G. Xie, B. Huang, T. Ullrich, N. G. Minaev, R. Lacey, Pradip Kumar Sahu, L. Zhang, H. W. Ke, P. Sorensen, A. J. Bassill, A. Ogawa, Anthony Robert Timmins, J. H. Thomas, B. Pawlik, A. Vossen, Michal Sumbera, N.N. Ajitanand, S. Heppelmann, Adam Ryszard Kisiel, N. Herrmann, S. Siejka, R. S. Longacre, B. J. Summa, L. P. Zhou, A. Gibson, F-H. Chang, Q. Yang, T. Niida, Yu-Gang Ma, Catherine Tomkiel, H. J. Crawford, P. V. Shanmuganathan, C. Zhou, K. Meehan, C-Q. Li, J. C. Dunlop, L. Wen, G. S. Averichev, S. Esumi, S. H. Zhang, N. Kulathunga, N. Xu, P. Filip, B. Tu, S. W. Wissink, D. Mallick, J. Engelage, Peter Q. Liu, J. Kvapil, Y. Zhang, A. Lebedev, G. D. Westfall, J. Porter, Christina Markert, D. Smirnov, O. Rusnakova, S. Ramachandran, H. S. Matis, O. Eyser, M. Tokarev, Yang Yang, J. M. Nelson, S. K. Radhakrishnan, G. Nigmatkulov, W. J. Llope, L. Fulek, G. Igo, Y. Wang, F. G. Atetalla, L. K. Kosarzewski, Y. Fisyak, D. L. Olvitt, Nilay Shah, Zubayer Ahammed, W. W. Jacobs, O. D. Tsai, J. Lauret, Jaroslav Bielcik, L. Didenko, I. Chakaberia, L. Krauth, K. Oh, Alexander Jentsch, Zebo Tang, James Brandenburg, K. Yip, R. Lednicky, L. Kochenda, T. Tarnowsky, D. Arkhipkin, A. Hamed, J. Butterworth, J. M. Landgraf, Lukas Holub, Bedangadas Mohanty, P. Szymanski, K. Kauder, A. Attri, K. N. Barish, P. Seyboth, M. Strikhanov, Y. F. Xu, P. Huo, Q. Y. Shou, W. Q. Shen, Xiang Sun, Chong Kim, Jan Vanek, Leszek Adamczyk, C. Perkins, R. Pak, O. V. Rogachevskiy, J. Rusnak, A. F. Kraishan, S. R. Klein, Jorn Henning Putschke, A. Quintero, A. V. Brandin, P. Chaloupka, T. D. S. Stanislaus, Ting Lin, Z. J. Xu, J. Sandweiss, H. Liu, L. Ruan, M. Zyzak, S. Trentalange, Vipul Bairathi, David Stewart, H. G. Ritter, H. H. Wieman, R. Witt, D. Tlusty, T. Todoroki, S. Mioduszewski, Sevil Salur, Arabinda Behera, David Brown, M. Calderon De La Barca Sanchez, A. I. Hamad, A. A. Derevschikov, Sedigheh Jowzaee, Prithwish Tribedy, B. K. Srivastava, Rafal Sikora, F. Liu, Shengli Huang, J. W. Harris, Miroslav Simko, Mariusz Przybycien, A. H. Tang, I. Bunzarov, O. Matonoha, J. C. Webb, L. C. Bland, R. D. Majka, R. Seto, J. Schambach, Chi Yang, W. Christie, D. N. Svirida, Andrey Vasiliev, X.G. Li, Janet Elizabeth Seger, I. M. Deppner, T. J. Humanic, B. S. Page, D. P. Kikola, B. Stringfellow, Isaac Upsal, Jana Bielcikova, Tetsuro Sugiura, J. L. Romero, I. Vassiliev, Lukas Kramarik, Y. J. Sun, C. Dilks, E. Finch, Xuedong Bai, D. Kapukchyan, D. G. Underwood, T. Nonaka, Wei Xie, A. Aparin, J. D. Negrete, N. Schmitz, J. Cheng, E. Shahaliev, Roli Esha, Daniel Nemes, Jie Zhao, S. Horvat, J. Y. Zhang, A. Lipiec, W. Zha, N. Yu, Kejun Kang, L. V. Nogach, A. Harlenderova, Sumit R. Das, W. Guryn, J. Fedorisin, M. M. Mondal, S. B. Nurushev, J. M. Campbell, Joseph Kwasizur, M. Shao, G. Van Buren, T. G. Dedovich, S. S. Shi, S. Fazio, Xuliang Chen, Siwei Luo, Isaac Mooney, J. Jia, Muhammad Usman Ashraf, Sergey Voloshin, K. Jiang, Yanjun Wu, and M. Sergeeva
Subjects: Physics, Spectral representation, Pair production, 010308 nuclear & particles physics, 0103 physical sciences, Chatterjee, General Physics and Astronomy, Star (graph theory), 010306 general physics, 01 natural sciences, Mathematical physics
Abstract: Author(s): 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; Bassill, 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; Bunzarov, I; Butterworth, J; Caines, H; Calderon de la Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, F-H; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; 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 | Abstract: We report first measurements of e^{+}e^{-} pair production in the mass region 0.4
Published: 2018

27. Longitudinal double-spin asymmetries for π0s in the forward direction for 510 GeV polarized pp collisions

Author: M. Shao, G. Van Buren, S. S. Shi, J. H. Thomas, T. J. Humanic, Roli Esha, L. P. Zhou, Daniel Nemes, Jie Zhao, S. Horvat, J. W. Harris, F-H. Chang, Q. Yang, M. Simko, G. Eppley, J. Bryslawskyj, J. C. Dunlop, L. Wen, Jongmin Lee, R. L. Ray, B. S. Page, R. Ma, T. Ljubicic, D. P. Kikola, Niseem Magdy, H. Caines, M. Lomnitz, Zhigang Xiao, T. Huang, A. H. Tang, Zubayer Ahammed, A. Lipiec, David Brown, W. Zha, I. Bunzarov, O. Matonoha, B. Stringfellow, Muhammad Usman Ashraf, G. S. Averichev, Yunpeng Liu, Derek Anderson, J. Pluta, F. Liu, Mariusz Przybycien, Sergey Voloshin, N. Chankova-Bunzarova, W. Li, N. G. Minaev, S. Heppelmann, Jaroslav Bielcik, Jorn Henning Putschke, Y. Yang, B. J. Summa, L. Ma, A. V. Brandin, Q. Y. Shou, Rene Bellwied, K. Kauder, K. Jiang, F. G. Atetalla, Q. H. Xu, C-Q. Li, J. L. Romero, Yanjun Wu, Z. Ye, J. Xu, Jaroslav Adam, Maowu Nie, R. E. Tribble, N. Kulathunga, N. Xu, P. Filip, O. D. Tsai, Vipul Bairathi, Giacomo Contin, R. Pak, J. L. Drachenberg, D. G. Underwood, Olga Evdokimov, R. D. Majka, Lukas Kramarik, James Brandenburg, G. D. Westfall, M. Sergeeva, O. V. Rogachevskiy, X. Huang, A. Kechechyan, S. B. Nurushev, Christina Markert, K. N. Barish, J. Schambach, I. Vassiliev, A. Quintero, E. Finch, S. Fazio, Xuliang Chen, Nihar Sahoo, Xuedong Bai, Anik Gupta, S. Ramachandran, D. L. Olvitt, Siwei Luo, Arka Chatterjee, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Pradip Kumar Sahu, Y. Wang, Y. Fisyak, W. Christie, O. Eyser, Xiangming Sun, Isaac Upsal, Jay Roberts, Jiangyong Jia, Benjamin Schweid, D. Arkhipkin, A. Hamed, D. Smirnov, O. Rusnakova, H. S. Matis, J. Cheng, P. Federicova, Frank Jm Geurts, Isaac Mooney, Andrey Vasiliev, T. Galatyuk, K. Oh, B. Huang, Lukas Holub, N. N. Ajitanand, Bedangadas Mohanty, Anthony Robert Timmins, W. Q. Shen, N. K. Pruthi, J. Kvapil, H. W. Ke, H. Z. Huang, S. Vokal, Tetsuro Sugiura, Y. J. Sun, R. S. Longacre, Adam Ryszard Kisiel, X.G. Li, L. K. Kosarzewski, W. W. Jacobs, J. Rusnak, S. K. Radhakrishnan, A. F. Kraishan, Vitaly Okorokov, Nilay Shah, C. Zhou, A. A. Derevschikov, C. Dilks, Xiang Sun, Janet Elizabeth Seger, L. Fulek, P. V. Shanmuganathan, P. Szymanski, H. J. Crawford, K. Meehan, L. Ruan, Bernd Surrow, D. Kapukchyan, D. Mallick, I. M. Deppner, Anju Bhasin, M. Tokarev, K. Yip, Peng Huo, G. Xie, Y. Li, S. Singha, A. Harlenderova, J. Lauret, S. H. Zhang, A. J. Bassill, Maksym Zyzak, R. Lednicky, B. Pawlik, T. Todoroki, Alexandre Alarcon Do Passo Suaide, J. K. Adkins, A. Gibson, H. Liu, N. Elsey, T. Niida, G. Igo, J. H. Chen, A. Lebedev, D. Mayes, R. Fatemi, L. He, T. Nonaka, G. Wang, Chong Kim, Shaji Kumar, Todd Kinghorn, David Stewart, K. Krueger, L. Krauth, W. Guryn, R. Lacey, J. C. Webb, T. D. S. Stanislaus, L. Kochenda, T. Tarnowsky, H. H. Wieman, Xiaofeng Luo, Wei Xie, Zebo Tang, D. A. Morozov, Z. Chang, J. Butterworth, W. B. Schmidke, H. G. Ritter, A. Aparin, R. Seto, J. D. Negrete, Guo-Liang Ma, Y. F. Xu, Sevil Salur, C. A. Gagliardi, J. Fedorisin, N. Schmitz, R. Witt, E. Shahaliev, M. Cherney, Li Yi, Rafal Sikora, Lokesh Kumar, Hua Pei, S. K. Tripathy, C. Perkins, Jana Bielcikova, M. M. Mondal, N. Herrmann, J. M. Campbell, Madan M. Aggarwal, P. Sorensen, S. Mioduszewski, Michal Sumbera, Fuqiang Wang, L. C. Bland, D. K. Mishra, P. Chaloupka, Ting Lin, L. Didenko, I. Chakaberia, Z. J. Xu, S. Siejka, Xiaofeng Zhu, A. S. Hirsch, Catherine Tomkiel, Ying Liang, S. Trentalange, D. Kalinkin, T. G. Dedovich, Prithwish Tribedy, B. K. Srivastava, Chi Yang, P. Seyboth, D. N. Svirida, P. Kravtsov, Fuwang Shen, A. Ogawa, S. W. Wissink, Y. Zhang, A. Vossen, Jan Vanek, Leszek Adamczyk, A. M. Schmah, Zongye Zhang, S. Esumi, Y. Guo, I. G. Bordyuzhin, P. Federic, J. Y. Zhang, A. K. Bhati, D. Keane, N. Yu, Kejun Kang, L. V. Nogach, Sumit R. Das, J. A. Mazer, D. Tlusty, I. K. Yoo, Nikolai Smirnov, C. E. Flores, E. G. Judd, L. G. Efimov, F. Videbæk, Y. Panebratsev, Saehanseul Oh, D. Grosnick, Sukalyan Chattopadhyay, L. Zhang, B. Tu, Nasim, J. M. Nelson, W. J. Llope, Alexander Jentsch, A. Attri, P. Liu, J. Engelage, G. Nigmatkulov, J. M. Landgraf, M. Strikhanov, J. Sandweiss, Yu-Gang Ma, Xuan Zhang, R. Aoyama, Hanna Paulina Zbroszczyk, R. Reed, E. P. Sichtermann, T. Ullrich, C. Zhong, E. C. Aschenauer, S. Margetis, X. Dong, J. Lidrych, Shize Yang, G. Agakishiev, D. S. Gunarathne, F. Seck, M. Posik, D. Cebra, Arabinda Behera, A. Taranenko, H. M. Spinka, Zhanwen Zhu, S. Kabana, Justin Ewigleben, G. Odyniec, J. Porter, Ivan Kisel, S. L. Huang, J. R. Adams, W. Solyst, I. G. Alekseev, M. A. Lisa, J. C. Mei, and Joseph Kwasizur
Subjects: Physics, 010308 nuclear & particles physics, 0103 physical sciences, Chatterjee, Transverse momentum, 010306 general physics, 01 natural sciences, Spin-½, Mathematical physics
Abstract: Author(s): 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; Bassill, 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; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; 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 | Abstract: The STAR Collaboration reports measurements of the longitudinal double-spin asymmetry, ALL, for neutral pions produced at forward directions in polarized proton-proton collisions, at a center-of-mass energy of 510 GeV. Results are given for transverse momenta in the range 2
Published: 2018

28. Longitudinal double-spin asymmetries for dijet production at intermediate pseudorapidity in polarized pp collisions at s=200 GeV

Author: Jorn Henning Putschke, A. V. Brandin, G. Wang, Xiangming Sun, Vipul Bairathi, J. Porter, N. Herrmann, Ivan Kisel, I. Vassiliev, Anik Gupta, Frank Jm Geurts, S. Siejka, T. Galatyuk, C. Zhou, K. Meehan, S. H. Zhang, Benjamin Schweid, N. K. Pruthi, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Xiaofeng Luo, Giacomo Contin, Siwei Luo, D. Arkhipkin, A. Hamed, E. P. Sichtermann, Zebo Tang, Guo-Liang Ma, Li Yi, K. Yip, I. K. Yoo, C. Perkins, S. L. Huang, P. Seyboth, N. N. Ajitanand, Nihar Sahoo, G. Eppley, Jan Vanek, A. S. Hirsch, P. Kravtsov, Fuwang Shen, A. M. Schmah, Leszek Adamczyk, J. L. Drachenberg, R. S. Longacre, S. Fazio, J. Pluta, N. Chankova-Bunzarova, W. Li, Xuliang Chen, Jiangyong Jia, P. Federic, L. Ma, Rene Bellwied, P. V. Shanmuganathan, M. Tokarev, D. Mallick, Olga Evdokimov, Roli Esha, Isaac Mooney, Daniel Nemes, Jie Zhao, S. Horvat, S. Heppelmann, B. J. Summa, C. E. Flores, E. G. Judd, J. L. Romero, Lukas Kramarik, E. Finch, Anthony Robert Timmins, Adam Ryszard Kisiel, R. E. Tribble, Xuedong Bai, T. J. Humanic, Shize Yang, F. Seck, I. G. Alekseev, Arka Chatterjee, F. Videbæk, D. Tlusty, G. Igo, T. Ullrich, T. D. S. Stanislaus, Xiaofeng Zhu, Ying Liang, K. Kauder, H. J. Crawford, M. A. Lisa, J. C. Mei, Sukalyan Chattopadhyay, J. K. Adkins, H. H. Wieman, L. Krauth, M. Simko, M. Posik, Arabinda Behera, Jay Roberts, L. Zhang, Y. Panebratsev, Yu-Gang Ma, Lukas Holub, Bedangadas Mohanty, R. Fatemi, L. He, T. Nonaka, H. M. Spinka, Shaji Kumar, Todd Kinghorn, K. Krueger, J. Butterworth, A. Lipiec, A. Ogawa, Saehanseul Oh, Muhammad Usman Ashraf, J. Kvapil, W. Zha, D. Grosnick, Nilay Shah, B. S. Page, Xuan Zhang, S. Ramachandran, P. Chaloupka, Wei Xie, Y. F. Xu, H. W. Ke, J. M. Campbell, Jana Bielcikova, Y. Li, S. Singha, Alexandre Alarcon Do Passo Suaide, Ting Lin, Sergey Voloshin, Z. J. Xu, D. P. Kikola, Y. Wang, Y. Fisyak, O. Eyser, R. Aoyama, B. Stringfellow, Q. H. Xu, Z. Ye, J. Xu, J. H. Thomas, A. Aparin, S. Trentalange, Jaroslav Adam, J. W. Harris, K. Oh, Isaac Upsal, Hanna Paulina Zbroszczyk, D. G. Underwood, L. P. Zhou, J. Lidrych, D. L. Olvitt, Maowu Nie, T. G. Dedovich, K. Jiang, X. Huang, A. Kechechyan, P. Szymanski, J. D. Negrete, M. Cherney, F-H. Chang, Q. Yang, Lokesh Kumar, Hua Pei, S. K. Tripathy, Yanjun Wu, B. Pawlik, Pradip Kumar Sahu, P. Federicova, J. Bryslawskyj, C-Q. Li, H. Z. Huang, S. Vokal, J. Cheng, R. Witt, B. Huang, A. Gibson, Tetsuro Sugiura, R. Reed, G. Agakishiev, D. S. Gunarathne, N. Schmitz, E. Shahaliev, Y. J. Sun, B. Tu, Jongmin Lee, G. S. Averichev, A. H. Tang, N. Kulathunga, D. Cebra, M. Sergeeva, Michal Sumbera, C. Dilks, P. Sorensen, S. Mioduszewski, Peng Huo, A. Harlenderova, A. Taranenko, Zhanwen Zhu, J. M. Nelson, W. J. Llope, Catherine Tomkiel, J. H. Chen, N. Xu, P. Filip, I. Bunzarov, W. Guryn, R. L. Ray, V. A. Okorokov, R. Lacey, Prithwish Tribedy, B. K. Srivastava, R. Ma, S. W. Wissink, O. Matonoha, S. Kabana, Justin Ewigleben, G. Odyniec, Christina Markert, Alexander Jentsch, J. Y. Zhang, Y. Zhang, J. Fedorisin, M. M. Mondal, D. A. Morozov, A. Attri, N. Yu, Kejun Kang, L. V. Nogach, J. C. Dunlop, L. Wen, P. Liu, Sumit R. Das, Zubayer Ahammed, S. B. Nurushev, A. K. Bhati, D. Keane, Joseph Kwasizur, Nikolai Smirnov, L. G. Efimov, J. R. Adams, M. Shao, G. Van Buren, F. G. Atetalla, D. Smirnov, O. D. Tsai, O. Rusnakova, W. Solyst, S. S. Shi, T. Ljubicic, Q. Y. Shou, R. Pak, G. D. Westfall, W. Q. Shen, Xiang Sun, H. Liu, David Stewart, H. S. Matis, Sevil Salur, Niseem Magdy, H. Caines, D. Kapukchyan, M. Lomnitz, L. Didenko, I. Chakaberia, C. Zhong, E. C. Aschenauer, L. K. Kosarzewski, S. Margetis, James Brandenburg, X. Dong, W. W. Jacobs, K. N. Barish, J. Lauret, R. Lednicky, L. Kochenda, T. Tarnowsky, A. A. Derevschikov, Zhigang Xiao, T. Huang, Zongye Zhang, Y. Guo, Maksym Zyzak, I. G. Bordyuzhin, J. C. Webb, R. Seto, Yunpeng Liu, Derek Anderson, N. G. Minaev, J. A. Mazer, S. K. Radhakrishnan, L. Fulek, L. C. Bland, Chi Yang, J. Rusnak, A. F. Kraishan, L. Ruan, D. N. Svirida, Chong Kim, T. Todoroki, H. G. Ritter, Rafal Sikora, Jaroslav Bielcik, O. V. Rogachevskiy, J. Engelage, A. Quintero, G. Nigmatkulov, J. M. Landgraf, M. Strikhanov, J. Sandweiss, Nasim, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, D. Kalinkin, A. Vossen, S. Esumi, W. Christie, Bernd Surrow, Andrey Vasiliev, N. Elsey, D. Mayes, Z. Chang, X.G. Li, W. B. Schmidke, Janet Elizabeth Seger, C. A. Gagliardi, I. M. Deppner, David Brown, F. Liu, Mariusz Przybycien, Y. Yang, R. D. Majka, J. Schambach, Anju Bhasin, G. Xie, A. J. Bassill, T. Niida, and A. Lebedev
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Pseudorapidity, 0103 physical sciences, Chatterjee, 010306 general physics, 01 natural sciences
Abstract: Author(s): 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; Bassill, 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; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; 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 | Abstract: We present the first measurements of the longitudinal double-spin asymmetry ALL for dijets with at least one jet reconstructed within the pseudorapidity range 0.8lηl1.8. The dijets were measured in polarized pp collisions at a center-of-mass energy s=200 GeV. Values for ALL are determined for several distinct event topologies, defined by the jet pseudorapidities, and span a range of parton momentum fraction x down to x∼0.01. The measured asymmetries are found to be consistent with the predictions of global analyses that incorporate the results of previous RHIC measurements. They will provide new constraints on Δg(x) in this poorly constrained region when included in future global analyses.
Published: 2018

29. Azimuthal anisotropy in Cu+Au collisions at sNN=200 GeV

Author: D. L. Olvitt, Isaac Upsal, James Brandenburg, J. Bryslawskyj, T. Nonaka, K. N. Barish, Subhasis Chattopadhyay, Joseph Kwasizur, T. Tarnowsky, Giacomo Contin, A. Aparin, Xianglei Zhu, Rongrong Ma, Alexander Vasiliev, Lanny Ray, Tetsuro Sugiura, P. V. Shanmuganathan, A. A. Derevschikov, Nihar Sahoo, C. Dilks, D. Mallick, Y. Pandit, Zillay Khan, X. C. Chen, Feng Liu, G. Igo, H. Liu, S. Kabana, F. Videbæk, E. Shahaliev, I. G. Bordyuzhin, Yuanjing Li, L. Krauth, M. Tokarev, Yang Yang, David Stewart, Jana Bielcikova, J. Engelage, Anthony Robert Timmins, Adam Ryszard Kisiel, Qinghua Xu, Maksym Zyzak, R. Seto, L. Zhang, Keith Landry, Hans Georg Ritter, P. Seyboth, Sevil Salur, G. Nigmatkulov, K. Kauder, A. Taranenko, L. Didenko, I. Chakaberia, Bedangadas Mohanty, Yang Wu, Anik Gupta, A. I. Hamad, A. Harlenderova, Jiro Fujita, Sedigheh Jowzaee, R. Fatemi, Xinjie Huang, Paul Sorensen, Gerrit Jan van Nieuwenhuizen, Yifei Zhang, Zachariah Miller, Abdel Nasser Tawfik, Chris Perkins, J. M. Landgraf, Ming Shao, Frank Jm Geurts, Prithwish Tribedy, B. K. Srivastava, Dmitry Morozov, Dave Underwood, Long Ma, Zhongbin Xu, J. L. Romero, M. Lomnitz, M. Strikhanov, Nu Xu, Jing-Han Chen, H. H. Wieman, Christina Markert, O. Rusnakova, Janet Elizabeth Seger, Declan Keane, Wei Li, Niseem Magdy Abdelwahab Abdelrahman, I. M. Deppner, M. Cherney, Rosi Reed, Lokesh Kumar, J. L. Drachenberg, Michal Sumbera, H. S. Matis, D. P. Kikola, B. Stringfellow, J. Sandweiss, P. Federic, Olga Evdokimov, Barbara Antonina Trzeciak, L. K. Kosarzewski, Kun Jiang, S. K. Tripathy, Jay Roberts, Yanfang Liu, Hank Crawford, Prabhat Bhattarai, J. Fedorisin, B. Pawlik, Jianping Cheng, E. Finch, Anju Bhasin, Daniel Brown, A. K. Bhati, Nasim, Xiaofeng Luo, Guo-Liang Ma, K. Meehan, Jindrich Lidrych, Zhenyu Ye, T. Niida, Nikolai Smirnov, Xiaoping Zhang, A. Lebedev, L. Adamczyk, Zhigang Xiao, T. Huang, Derek Anderson, K. Krueger, Hal Spinka, Grant Webb, Xu Sun, Alexandre Alarcon Do Passo Suaide, J. Lauret, Spiros Margetis, Martin Kocmanek, S. Stanislaus, L. Kochenda, D. Tlusty, Zhaozhong Shi, J. W. Harris, Gary Westfall, Li Yi, A. S. Hirsch, P. Kravtsov, L. G. Efimov, A. M. Schmah, Arghya Chatterjee, N. G. Minaev, R. Witt, Yi Guo, Manuel Calderon De La Barca Sanchez, Gang Wang, J. C. Dunlop, L. Wen, Kevin Adkins, John Campbell, Song Zhang, Zebo Tang, T. K. Nayak, S. B. Nurushev, S. Fazio, P. Federicova, Zubayer Ahammed, Norbert Schmitz, Jeong-Hun Lee, Robert E. Tribble, Zhao Feng, N. Kulathunga, S. Das, P. Filip, Norbert Herrmann, Wlodek Guryn, Y. Panebratsev, D. Grosnick, I. K. Yoo, Miroslav Simko, Ron Longacre, I. Bunzarov, Mariusz Przybycien, Cheng Li, D. Kapukchyan, J. Putschke, Roli Esha, R. Aoyama, Daniel Nemes, Jie Zhao, Z. Ye, A. Ogawa, Shuai Yang, Gene Van Buren, Y. Fisyak, Samuel Heppelmann, B. Tu, Q. Y. Shou, Yi-Fei Xu, Maowu Nie, M. M. Mondal, K. Oh, C. E. Flores, E. G. Judd, J. Schambach, Bill Christie, A. Kechechyan, W. Zha, Xiaozhi Bai, J. Porter, Pradip Kumar Sahu, Wen-Qing Shen, R. Pak, Jiangyong Jia, Xiaolong Chen, Arabinda Behera, J. Rusnak, A. F. Kraishan, L. Ruan, T. Todoroki, Long Zhou, Chong Kim, H. Z. Huang, Rafal Sikora, Jonathan Bouchet, Martin Girard, Jochen Mathias Thaeder, Mustafa M. Mustafa, B. Schmidke, H. W. Ke, L. Fulek, L. C. Bland, Katarzyna Poniatowska, Chi Yang, D. N. Svirida, T. G. Dedovich, H. Pei, N. Yu, E. P. Sichtermann, Kejun Kang, L. V. Nogach, Chensheng Zhou, Peifeng Liu, T. Ullrich, Yi Wang, Liang He, Neha Shah, C. Zhong, E. C. Aschenauer, X. Dong, T. Ljubicic, H. Caines, A. Quintero, Nuggehalli Ajitanand, Dmitri Smirnov, P. Chaloupka, Ting Lin, Muhammad Usman Ashraf, A. Gibson, O. D. Tsai, V. A. Okorokov, A. H. Tang, Benjamin Schweid, T. J. Humanic, D. Arkhipkin, A. Hamed, M. Sergeeva, Siwei Luo, Joseph Adams, Shenghui Zhang, William Jacobs, Jian Deng, G. Eppley, G. Agakishiev, D. S. Gunarathne, S. Horvat, J. Pluta, D. Cebra, S. Trentalange, Brian Page, Zhanwen Zhu, N. Chankova-Bunzarova, A. V. Brandin, Subhash Singha, Vipul Bairathi, Justin Ewigleben, G. Odyniec, Rene Bellwied, Qian Yang, Richard Daniel Majka, K. Yip, John Nelson, Xiangming Sun, B. Huang, J. M. Butterworth, J. H. Thomas, Arthur M. Poskanzer, Miroslav Saur, J. C. Webb, Jaroslav Bielcik, Jordan Roth, N. K. Pruthi, Jie Zhang, J. Kvapil, O. V. Rogachevskiy, W. Solyst, Sanshiro Mizuno, Y. K. Sun, Bernd Surrow, N. Elsey, D. Mayes, I. G. Alekseev, C. A. Gagliardi, M. A. Lisa, J. C. Mei, G. S. Averichev, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, A. Vossen, Ivan Kisel, Thorsten Sven Kollegger, D. Kalinkin, Z. Chang, Yaping Wang, Saskia Mioduszewski, Shusu Shi, S. Heppelmann, Xin Li, B. J. Summa, M. Posik, Z. Y. Zhang, Michael Skoby, J. E. Draper, S. Ramachandran, O. Eyser, Sergei A. Voloshin, S. Vokal, Wei Xie, Matthew Rehbein, Roy A. Lacey, W. J. Llope, Alexander Jentsch, A. Attri, P. Huo, Guannan Xie, R. Lednicky, Hanna Paulina Zbroszczyk, Ji Xu, Jingbo Zhang, S. W. Wissink, ShinIchi Esumi, and Yu-Gang Ma
Subjects: Physics, Range (particle radiation), 010308 nuclear & particles physics, media_common.quotation_subject, 01 natural sciences, Asymmetry, Charged particle, Pseudorapidity, Electric field, 0103 physical sciences, Rapidity, Center of mass, Atomic physics, Nuclear Experiment, 010306 general physics, Anisotropy, media_common
Abstract: The azimuthal anisotropic flow of identified and unidentified charged particles has been systematically studied in Cu+Au collisions at sNN=200 GeV for harmonics n=1–4 in the pseudorapidity range |η
Published: 2018

30. Global polarization of Λ hyperons in Au + Au collisions at sNN=200 GeV

Author: Chensheng Zhou, T. Ullrich, Yi Wang, T. Ljubicic, H. Caines, Neha Shah, C. Zhong, X. Dong, Jeong-Hun Lee, Miroslav Simko, Ron Longacre, A. Harlenderova, Long Ma, Justin Ewigleben, G. Odyniec, Shuai Yang, Chris Perkins, Yanfang Liu, J. Schambach, J. Fedorisin, Anju Bhasin, A. J. Bassill, Xiaofeng Luo, Guo-Liang Ma, J. C. Webb, Roli Esha, Jaroslav Bielcik, Li Yi, T. Niida, W. Solyst, Daniel Nemes, Jie Zhao, H. W. Ke, L. Fulek, Jie Zhang, A. S. Hirsch, A. Lebedev, L. C. Bland, Alexandre Alarcon Do Passo Suaide, P. Kravtsov, A. M. Schmah, A. Lipiec, O. V. Rogachevskiy, I. G. Alekseev, M. A. Lisa, J. C. Mei, J. Porter, Arghya Chatterjee, Feng-Han Chang, D. N. Svirida, Ivan Kisel, D. L. Olvitt, Gary Westfall, J. Kvapil, G. Agakishiev, D. S. Gunarathne, Long Zhou, Subhasis Chattopadhyay, S. Horvat, D. Cebra, S. Trentalange, Zhanwen Zhu, Chong Kim, Y. K. Sun, Bernd Surrow, Brian Page, S. Siejka, Nu Xu, H. Z. Huang, A. V. Brandin, N. Elsey, D. Mayes, Janet Elizabeth Seger, Daniel Brown, Hal Spinka, I. M. Deppner, F. Videbæk, Norbert Herrmann, Rafal Sikora, Yuanjing Li, J. Rusnak, Zhongbin Xu, A. F. Kraishan, Vipul Bairathi, L. Zhang, L. Ruan, J. L. Romero, C. A. Gagliardi, J. Putschke, Yifei Zhang, Qian Yang, Richard Daniel Majka, Lukas Kramarik, T. Todoroki, Jana Bielcikova, Madan M. Aggarwal, Sooraj Krishnan Radhakrishnan, Fuqiang Wang, E. Finch, P. Federicova, J. H. Thomas, A. Ogawa, M. Tokarev, Yang Yang, K. Yip, D. K. Mishra, N. Kulathunga, J. L. Drachenberg, Yang Wu, Anik Gupta, P. Szymanski, P. Filip, H. H. Wieman, I. G. Bordyuzhin, Y. Fisyak, Olga Evdokimov, K. Oh, Muhammad Usman Ashraf, Xiangming Sun, D. Mallick, Frank Jm Geurts, B. Huang, A. Vossen, D. Kalinkin, T. Galatyuk, Gene Van Buren, O. D. Tsai, Z. Ye, Manuel Calderon De La Barca Sanchez, L. Didenko, I. Chakaberia, Cheng Li, D. Kapukchyan, G. Igo, Maowu Nie, L. Krauth, S. Heppelmann, A. Kechechyan, James Brandenburg, K. N. Barish, Xin Li, B. J. Summa, Fuwang Shen, Gang Wang, G. S. Averichev, Christina Markert, Bill Christie, K. Kauder, A. Taranenko, O. Rusnakova, P. Seyboth, Xiaozhi Bai, Jaroslav Adam, K. Meehan, S. B. Nurushev, J. Bryslawskyj, Z. Y. Zhang, T. Tarnowsky, H. S. Matis, T. Nonaka, Jindrich Lidrych, Jiangyong Jia, L. K. Kosarzewski, Xiaolong Chen, J. Lauret, Xianglei Zhu, Arabinda Behera, Kun Jiang, Jay Roberts, Song Zhang, Yaping Wang, A. A. Derevschikov, A. I. Hamad, Saskia Mioduszewski, Shusu Shi, Zebo Tang, Sedigheh Jowzaee, S. Stanislaus, L. Kochenda, Jan Vanek, Joseph Kwasizur, Dave Underwood, N. K. Pruthi, Qinghua Xu, F. Seck, Maksym Zyzak, E. Shahaliev, Declan Keane, K. Krueger, P. Federic, M. Sergeeva, I. Vassiliev, M. Posik, Jianping Cheng, G. Eppley, O. Eyser, Sergei A. Voloshin, J. W. Harris, R. Seto, Siwei Luo, J. Pluta, W. J. Llope, Wei Li, R. Witt, N. Chankova-Bunzarova, I. Bunzarov, O. Matonoha, Subhash Singha, Joseph Adams, Alexander Jentsch, Niseem Magdy Abdelwahab Abdelrahman, Zhigang Xiao, T. Huang, J. C. Dunlop, L. Wen, Rene Bellwied, S. Vokal, Yue Liang, Wei Xie, A. Attri, Wlodek Guryn, Y. Panebratsev, Isaac Mooney, Shenghui Zhang, Zubayer Ahammed, Norbert Schmitz, Derek Anderson, P. Huo, Saehanseul Oh, D. Grosnick, William Jacobs, N. G. Minaev, John Campbell, S. W. Wissink, Q. Y. Shou, Yi-Fei Xu, Sumit Kumar, R. Pak, Feng Liu, Roy A. Lacey, Hans Georg Ritter, R. Aoyama, Mariusz Przybycien, ShinIchi Esumi, Prithwish Tribedy, B. K. Srivastava, Shengli Huang, Samuel Heppelmann, Peifeng Liu, B. Tu, Yu-Gang Ma, Guannan Xie, R. Lednicky, Hanna Paulina Zbroszczyk, A. K. Bhati, Nikolai Smirnov, Xiaoping Zhang, Xu Sun, L. G. Efimov, Liang He, Ji Xu, F. G. Atetalla, Lanny Ray, H. Liu, David Stewart, Sevil Salur, T. G. Dedovich, H. Pei, N. Yu, Kejun Kang, L. V. Nogach, Isaac Upsal, Alexander Vasiliev, Tetsuro Sugiura, S. Kabana, Paul Sorensen, D. P. Kikola, B. Stringfellow, R. Fatemi, Todd Kinghorn, Ming Shao, M. Cherney, Rosi Reed, Lokesh Kumar, S. K. Tripathy, Rongrong Ma, Nihar Sahoo, X. C. Chen, Anthony Robert Timmins, Adam Ryszard Kisiel, J. Engelage, J. M. Landgraf, Dmitry Morozov, M. Strikhanov, J. Sandweiss, Nasim, Joel Anthony Mazer, Spiros Margetis, D. Tlusty, S. Das, Jing-Han Chen, Michal Sumbera, Catherine Tomkiel, Hank Crawford, P. Chaloupka, Ting Lin, A. H. Tang, Benjamin Schweid, T. J. Humanic, D. Arkhipkin, A. Hamed, Jesus Negrete, V. A. Okorokov, Lukas Holub, Bedangadas Mohanty, Robert E. Tribble, I. K. Yoo, M. M. Mondal, E. G. Judd, and E. P. Sichtermann
Subjects: Physics, 010308 nuclear & particles physics, media_common.quotation_subject, Hyperon, Vorticity, Polarization (waves), Lambda, 01 natural sciences, Asymmetry, Magnetic field, Nuclear physics, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, media_common
Abstract: Global polarization of $\Lambda$ hyperons has been measured to be of the order of a few tenths of a percent in Au+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV, with no significant difference between $\Lambda$ and $\bar{\Lambda}$. These new results reveal the collision energy dependence of the global polarization together with the results previously observed at $\sqrt{s_{_{NN}}}$ = 7.7 -- 62.4 GeV and indicate noticeable vorticity of the medium created in non-central heavy-ion collisions at the highest RHIC collision energy. The signal is in rough quantitative agreement with the theoretical predictions from a hydrodynamic model and from the AMPT (A Multi-Phase Transport) model. The polarization is larger in more peripheral collisions, and depends weakly on the hyperon's transverse momentum and pseudorapidity $\eta^H$ within $|\eta^H
Published: 2018

31. Beam Energy Dependence of Jet-Quenching Effects in Au+Au Collisions at sNN=7.7 , 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV

Author: Jana Bielcikova, J. L. Romero, J. Engelage, David Brown, Zebo Tang, E. Finch, T. Kollegger, G. Nigmatkulov, Xuedong Bai, F. Liu, Miroslav Simko, N. Kulathunga, N. Xu, P. Filip, Mariusz Przybycien, B. Pawlik, D. G. Underwood, A. Gibson, J. M. Landgraf, K. Yip, Q. Yang, J. K. Adkins, R. Fatemi, L. He, Z. Chang, Shize Yang, G. D. Westfall, Jun Deng, C. Perkins, M. Strikhanov, M. Posik, H. M. Spinka, T. J. Humanic, A. K. Bhati, D. Keane, James Brandenburg, J. Fujita, K. N. Barish, K. Krueger, R. D. Majka, J. Cheng, R. S. Longacre, B.R. Schweid, Muhammad Usman Ashraf, Michal Sumbera, Abdel Nasser Tawfik, I. Kisel, C. Zhong, E. C. Aschenauer, Nikolai Smirnov, Xiaofeng Zhu, J. Schambach, L. G. Efimov, J. Sandweiss, Nasim, Anik Gupta, J. L. Drachenberg, Z. Ye, Justin Ewigleben, J. M. Campbell, S. W. Wissink, Sergey Voloshin, J. W. Harris, G. Odyniec, W. Christie, L. C. Bland, S. Margetis, A. Ogawa, T. K. Nayak, P. V. Shanmuganathan, Olga Evdokimov, Barbara Antonina Trzeciak, M. Cherney, Lokesh Kumar, Jorn Henning Putschke, A. A.P. Suaide, D. Mallick, A. V. Brandin, Frank Jm Geurts, Maowu Nie, D. L. Olvitt, E. Sangaline, D. Arkhipkin, B. S. Page, Y. Zhang, Andrey Vasiliev, Hua Pei, X. Huang, A. Kechechyan, S. K. Tripathy, X. Dong, D. Kapukchyan, A. Hamed, T. G. Dedovich, G. Igo, M. Kocmanek, Jay Roberts, D. P. Kikola, Roli Esha, A. H. Tang, B. Stringfellow, Vipul Bairathi, Zhigang Xiao, T. Huang, K. Jiang, X.G. Li, Zongye Zhang, Yunpeng Liu, Derek Anderson, N. G. Minaev, Janet Elizabeth Seger, J. Porter, Pradip Kumar Sahu, E. P. Sichtermann, J. Bouchet, L. Krauth, Jie Zhao, T. Lin, S. Horvat, K. Poniatowska, Giacomo Contin, C. Zhou, K. Meehan, I. Bunzarov, H. W. Ke, M. Calderon De La Barca Sanchez, A. I. Hamad, Chi Yang, Y. Panebratsev, D. Grosnick, T. Nonaka, Z. H. Khan, Y. Guo, I. G. Bordyuzhin, Lisa, Yanjun Wu, P. Seyboth, J. H. Thomas, S. Mizuno, J. Rusnak, Arka Chatterjee, Xiangming Sun, K. D. Landry, J. Butterworth, Nihar Sahoo, X. C. Chen, W. Zha, D. N. Svirida, Wei Xie, L. P. Zhou, S. H. Zhang, Anju Bhasin, T. Ullrich, R. Lacey, A. F. Kraishan, S. B. Nurushev, P. Bhattarai, G. S. Averichev, Isaac Upsal, Sedigheh Jowzaee, Y. F. Xu, M. K. Mustafa, L. Ruan, S. Fazio, I. K. Yoo, F. Videbæk, G. Webb, Y. Li, S. Singha, Q. H. Xu, Anthony Robert Timmins, Adam Ryszard Kisiel, M. Sergeeva, T. Todoroki, A. Aparin, T. Niida, A. Lebedev, Samuel Heppelmann, J. Xu, Sukalyan Chattopadhyay, H. J. Crawford, Leszek Adamczyk, Jongmin Lee, Z. Shi, R. L. Ray, A. A. Derevschikov, Tetsuro Sugiura, R. Ma, M. Tokarev, Yang Yang, A. Harlenderova, W. Guryn, Y. Pandit, N. Schmitz, E. Shahaliev, J. R. Adams, W. Solyst, Siwei Luo, P. Federic, P. Chaloupka, R. Witt, S. Mioduszewski, C-Q. Li, Z. J. Xu, M. J. Rehbein, Christina Markert, Y. J. Sun, C. Dilks, Peter Q. Liu, J. Kvapil, Z. W. Miller, L. Yi, M. Saur, O. D. Tsai, Z. Feng, J. Fedorisin, T. Ljubicic, D. Smirnov, O. Rusnakova, H. S. Matis, J. Bryslawskyj, S. Trentalange, Madan M. Aggarwal, John Z. H. Zhang, I. G. Alekseev, P. Federicova, C. E. Flores, E. G. Judd, Xiaofeng Luo, Nilay Shah, J. C. Mei, N. K. Pruthi, K. Kauder, T. D. S. Stanislaus, M. M. Mondal, Niseem Magdy, H. Caines, Chong Kim, B. Huang, Guo-Liang Ma, M. Lomnitz, Prithwish Tribedy, B. K. Srivastava, L. K. Kosarzewski, W. W. Jacobs, G. Eppley, Fuqiang Wang, W. Q. Shen, D. Tlusty, H. H. Wieman, J. Thäder, D. K. Mishra, Bedangadas Mohanty, J. Pluta, A. S. Hirsch, P. Kravtsov, H. G. Ritter, N. Chankova-Bunzarova, W. Li, Arabinda Behera, P. Sorensen, J. Lauret, Jiangyong Jia, A. M. Schmah, Xiang Sun, M. R. Girard, J. D. Roth, Rene Bellwied, N. Yu, J. Lidrych, Joseph Kwasizur, H. Liu, R. E. Tribble, Kejun Kang, L. V. Nogach, L. Didenko, I. Chakaberia, D. Kalinkin, J. C. Dunlop, L. Wen, R. Lednicky, L. Kochenda, T. Tarnowsky, Y. Wang, Rafal Sikora, Sumit R. Das, G. Van Nieuwenhuizen, J. C. Webb, Y. Fisyak, Lin Ma, M. Shao, G. Van Buren, K. Oh, R. Seto, Yinina Ma, G. Wang, Sevil Salur, Zubayer Ahammed, A. Vossen, S. S. Shi, G. Agakishiev, D. S. Gunarathne, D. Cebra, A. Taranenko, Zhanwen Zhu, S. Esumi, S. Kabana, Q. Y. Shou, Jaroslav Bielcik, R. Pak, M. J. Skoby, L. Fulek, O. V. Rogachevskiy, A. Quintero, M. Zyzak, Vitaly Okorokov, Bernd Surrow, N. Elsey, H. Z. Huang, S. Vokal, W. B. Schmidke, C. A. Gagliardi, J. H. Chen, D. A. Morozov, N.N. Ajitanand, B. J. Summa, J. B. Zhang, J. E. Draper, S. Ramachandran, O. Eyser, Guannan Xie, Xuan Zhang, R. Aoyama, Hanna Paulina Zbroszczyk, R. Reed, J. M. Nelson, W. J. Llope, Alexander Jentsch, A. Attri, and P. Huo
Subjects: Quantum chromodynamics, Physics, Proton, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, 01 natural sciences, Pion, Antiproton, 0103 physical sciences, High Energy Physics::Experiment, Impact parameter, Atomic physics, Nuclear Experiment, 010306 general physics, Jet quenching, Energy (signal processing)
Abstract: We report measurements of the nuclear modification factor R_{CP} for charged hadrons as well as identified π^{+(-)}, K^{+(-)}, and p(p[over ¯]) for Au+Au collision energies of sqrt[s_{NN}]=7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV. We observe a clear high-p_{T} net suppression in central collisions at 62.4 GeV for charged hadrons which evolves smoothly to a large net enhancement at lower energies. This trend is driven by the evolution of the pion spectra but is also very similar for the kaon spectra. While the magnitude of the proton R_{CP} at high p_{T} does depend on the collision energy, neither the proton nor the antiproton R_{CP} at high p_{T} exhibit net suppression at any energy. A study of how the binary collision-scaled high-p_{T} yield evolves with centrality reveals a nonmonotonic shape that is consistent with the idea that jet quenching is increasing faster than the combined phenomena that lead to enhancement.
Published: 2018

32. Measurement of the HΛ3 lifetime in Au+Au collisions at the BNL Relativistic Heavy Ion Collider

Author: Q. H. Xu, J. W. Harris, F. Videbæk, G. Webb, Sukalyan Chattopadhyay, T. Kollegger, S. Mizuno, Z. Feng, J. Xu, M. Lomnitz, D. Kalinkin, W. J. Llope, C. Zhou, D. L. Olvitt, E. P. Sichtermann, S. Heppelmann, B. J. Summa, P. Bhattarai, F. Liu, Miroslav Simko, N. Kulathunga, N. Xu, Guo-Liang Ma, P. Filip, Li Yi, P. Sorensen, Y. F. Wu, Mariusz Przybycien, X. G. Luo, Alexander Jentsch, K. Poniatowska, A. S. Hirsch, Siwei Luo, P. Kravtsov, A. M. Schmah, G. D. Westfall, Dmitry Smirnov, G. Eppley, S. Das, A. H. Tang, N. Magdy, Peng Huo, C-Q. Li, A. Attri, Giacomo Contin, A. Gupta, Bedangadas Mohanty, S. Ramachandran, O. Eyser, Joseph Kwasizur, A. Harlenderova, Md. Nasim, R. D. Majka, R. Witt, J. Alford, I. Bunzarov, D. Kapukchyan, J. Pluta, J. M. Campbell, M. Zyzak, J. D. Brandenburg, Guannan Xie, Xuan Zhang, J. L. Drachenberg, Tetsuro Sugiura, Zebo Tang, W. Guryn, N. Chankova-Bunzarova, Y. J. Sun, Jiangyong Jia, R. Lacey, S. Mioduszewski, M. J. Rehbein, Christina Markert, P. Federicova, W. Li, X. C. Chen, T. Ullrich, M. Shao, G. Van Buren, P. Chaloupka, Ting Lin, J. Schambach, C. Dilks, Anju Bhasin, J. D. Roth, D. N. Brown, G. J. van Nieuwenhuizen, Hanna Paulina Zbroszczyk, J. Bryslawskyj, A. K. Bhati, Rene Bellwied, L. Didenko, T. G. Dedovich, D. Keane, Prithwish Tribedy, B. K. Srivastava, O. Rusnakova, S. Kabana, K. Kang, T. Niida, M. Sergeeva, S. S. Shi, R. E. Tribble, H. Z. Huang, Wei Xie, M. K. Mustafa, S. Vokal, J. Rusnak, A. F. Kraishan, L. Ruan, S. Trentalange, A. Lebedev, I. K. Yoo, Z. Shi, Y. Fisyak, Lin Ma, K. Oh, A. Aparin, Olga Evdokimov, Barbara Antonina Trzeciak, Anthony Robert Timmins, J. Fujita, Jize Zhao, H. S. Matis, L. K. Kosarzewski, W. W. Jacobs, H. Liu, L. G. Efimov, T. K. Nayak, J. Lauret, Abdel Nasser Tawfik, R. Reed, J. Fedorisin, K. N. Barish, M. Saur, P. V. Shanmuganathan, Jay Roberts, C. Perkins, T. Todoroki, Y. Li, O. D. Tsai, Chong Kim, J. M. Nelson, Roli Esha, M. M. Mondal, C. E. Flores, E. G. Judd, Y. Pandit, A. V. Brandin, Muhammad Usman Ashraf, R. S. Longacre, Daniel Nemes, Adam Ryszard Kisiel, H. J. Crawford, J. K. Adkins, S. Horvat, T. Tarnowsky, Benjamin Schweid, T. J. Humanic, H. G. Ritter, W. Q. Shen, N. Schmitz, D. Arkhipkin, B. S. Page, K. Krueger, Avishek Chatterjee, A. Hamed, Sergey Voloshin, Michal Sumbera, L. C. Bland, P. Seyboth, D. P. Kikola, E. Shahaliev, Z. Chang, R. Fatemi, L. He, R. Lednicky, L. Kochenda, P. Federic, Y. G. Ma, B. Stringfellow, A. A. P. Suaide, K. Jiang, M. Calderon De La Barca Sanchez, A. I. Hamad, Y. Wang, Sedigheh Jowzaee, Rafal Sikora, Shangfeng Yang, J. H. Chen, Zhigang Xiao, David Stewart, T. Huang, Sevil Salur, G. Igo, S. Fazio, Zongye Zhang, Yunpeng Liu, Derek Anderson, M. Kocmanek, Peng Liu, N. G. Minaev, I. G. Bordyuzhin, Leszek Adamczyk, B. Pawlik, Y. Panebratsev, D. Grosnick, M. J. Skoby, Frank Jm Geurts, S. W. Wissink, Y. Zhang, M. R. Girard, J. C. Dunlop, L. Wen, Zubayer Ahammed, J. Bouchet, L. Krauth, Vipul Bairathi, W. Zha, B. Huang, I. Upsal, Jana Bielcikova, J. Thäder, J. R. Adams, A. A. Derevschikov, Y. F. Xu, M. Posik, D. A. Morozov, Z. W. Miller, R. Aoyama, K. D. Landry, K. Kauder, A. Taranenko, J. E. Draper, J. L. Romero, W. Christie, E. C. Aschenauer, S. Margetis, Subhash Singha, Andrey Vasiliev, Irakli Chakaberia, Z. Z. Xu, Arabinda Behera, S. Zhang, Dukhishyam Mallick, H. M. Spinka, Nikita Smirnov, J. Y. Zhang, E. Finch, D. G. Underwood, X. Dong, K. Meehan, N. Yu, Xuedong Bai, M. Cherney, Xiangming Sun, D. N. Svirida, Q. Y. Shou, L. V. Nogach, J. Porter, Lokesh Kumar, Jian Deng, Jindrich Lidrych, J. Putschke, Xiaofeng Zhu, Hua Pei, S. K. Tripathy, N. K. Pruthi, X. M. Sun, Ivan Kisel, R. Pak, G. Wang, J. Cheng, A. Ogawa, X.G. Li, Y. Guo, Jongmin Lee, C. Yang, R. Seto, R. L. Ray, R. Ma, G. Agakishiev, D. S. Gunarathne, N. Herrmann, T. Ljubicic, Janet Elizabeth Seger, J. H. Thomas, H. Caines, L. P. Zhou, S. B. Nurushev, A. Quintero, H. W. Ke, L. Fulek, I. M. Deppner, G. S. Averichev, D. Cebra, Zhanwen Zhu, Y. Yang, J. Kvapil, Justin Ewigleben, Nilay Shah, A. Gibson, C. Zhong, K. Yip, Vitaly Okorokov, Z. Ye, D. Tlusty, Bernd Surrow, Maowu Nie, X. Huang, A. Kechechyan, Niladribihari Sahoo, Pradip Kumar Sahu, T. Nonaka, Z. H. Khan, J. M. Butterworth, N. Elsey, J. Engelage, N. N. Ajitanand, G. Nigmatkulov, J. C. Webb, D. Mayes, J. M. Landgraf, M. Tokarev, M. Strikhanov, W. Solyst, T. D. S. Stanislaus, H. H. Wieman, W. B. Schmidke, G. Odyniec, J. Sandweiss, I. G. Alekseev, M. A. Lisa, J. C. Mei, C. A. Gagliardi, Jaroslav Bielcik, Jie Zhang, O. V. Rogachevskiy, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, A. Vossen, S. Esumi, and Qi Yang
Subjects: Nuclear physics, Physics, 010308 nuclear & particles physics, 0103 physical sciences, Chatterjee, 010306 general physics, Hypernucleus, Relativistic Heavy Ion Collider, 01 natural sciences, Hypertriton
Abstract: Author(s): 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; 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; Bryslawskyj, J; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; 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; 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; Filip, P; Finch, E; Fisyak, Y; Flores, CE; Fujita, J | Abstract: An improved measurement of the HΛ3 lifetime is presented. In this paper, the mesonic decay modes HΛ3→He3 + π- and HΛ3→d+p+π- are used to reconstruct the HΛ3 from Au+Au collision data collected by the STAR collaboration at Relativistic Heavy Ion Collider (RHIC). A minimum χ2 estimation is used to determine the lifetime of τ=142-21+24(stat.)±29(syst.) ps. This lifetime is about 50% shorter than the lifetime τ=263±2 ps of a free Λ, indicating strong hyperon-nucleon interaction in the hypernucleus system. The branching ratios of the mesonic decay channels are also determined to satisfy B.R.(He3+π-)/(B.R.(He3+π-)+B.R.(d+p+π-))=0.32±0.05(stat.)±0.08(syst.). Our ratio result favors the assignment J(HΛ3)=12 over J(HΛ3)=32. These measurements will help to constrain models of hyperon-baryon interactions.
Published: 2018

33. Beam-Energy Dependence of Directed Flow ofΛ,Λ¯,K±,Ks0, andϕinAu+AuCollisions

Author: J. M. Nelson, Arka Chatterjee, W. J. Llope, Muhammad Usman Ashraf, T. J. Humanic, N. Kulathunga, N. Xu, P. Filip, M. K. Mustafa, Sergey Voloshin, Y. Li, S. Singha, Xiangming Sun, Abdel Nasser Tawfik, Alexander Jentsch, C-Q. Li, P. Pile, G. D. Westfall, D. L. Olvitt, K. Jiang, M. J. Rehbein, Christina Markert, D. Smirnov, O. Rusnakova, A. Attri, P. Federic, H. S. Matis, Hao Qiu, Yanjun Wu, Jun Deng, P. Huo, B. S. Page, J. Y. Zhang, N. Yu, D. P. Kikola, L. K. Kosarzewski, Kejun Kang, L. V. Nogach, B. Stringfellow, Sumit R. Das, G. Van Nieuwenhuizen, W. W. Jacobs, Joseph Kwasizur, N. K. Pruthi, David Brown, T. Kollegger, J. Lauret, R. Lednicky, L. Kochenda, M. Sergeeva, F. Liu, Miroslav Simko, Mariusz Przybycien, Nasim, M. Shao, G. Van Buren, P. Seyboth, G. Eppley, T. Tarnowsky, S. Mizuno, S. S. Shi, J. M. Campbell, K. Kauder, T. G. Dedovich, F. Videbæk, G. Webb, Siwei Luo, J. Pluta, Leszek Adamczyk, Sukalyan Chattopadhyay, Jorn Henning Putschke, A. V. Brandin, J. Rusnak, D. Kapukchyan, N. Chankova-Bunzarova, W. Li, A. F. Kraishan, L. Ruan, J. D. Roth, R. D. Majka, Z. W. Miller, N.N. Ajitanand, S. Heppelmann, T. Todoroki, B. J. Summa, M. R. Girard, Guannan Xie, J. C. Webb, Xuan Zhang, Arabinda Behera, Rene Bellwied, R. Aoyama, R. Witt, R. E. Tribble, J. Schambach, R. Seto, Hanna Paulina Zbroszczyk, Madan M. Aggarwal, J. W. Harris, J. Jia, D. Tlusty, S. Mioduszewski, W. Christie, Z. Feng, Xiaofeng Zhu, T. Nonaka, Wei Xie, A. Aparin, Xiaofeng Luo, Yinina Ma, Zhigang Xiao, T. Huang, Yunpeng Liu, Derek Anderson, Roli Esha, P. Bhattarai, Isaac Upsal, Vipul Bairathi, James Brandenburg, J. Fujita, Guo-Liang Ma, R. Reed, Jie Zhao, T. Lin, S. Horvat, K. N. Barish, N. G. Minaev, Andrey Vasiliev, A. Ogawa, S. B. Nurushev, Mukesh Sharma, G. Wang, J. B. Zhang, Y. Pandit, Fuqiang Wang, S. Fazio, Xuliang Chen, Michal Sumbera, A. A. P. Suaide, J. E. Draper, X.G. Li, Prithwish Tribedy, B. K. Srivastava, Zongye Zhang, Y. Guo, I. G. Bordyuzhin, M. J. Skoby, N. Schmitz, D. K. Mishra, E. Shahaliev, A. H. Tang, L. E. Dunkelberger, A. S. Hirsch, I. Bunzarov, Z. H. Khan, W. Zha, Janet Elizabeth Seger, P. Kravtsov, A. K. Bhati, A. M. Schmah, L. Fulek, R. Lacey, S. Ramachandran, B.R. Schweid, Tetsuro Sugiura, Y. J. Sun, M. Calderon De La Barca Sanchez, A. I. Hamad, Anju Bhasin, A. A. Derevschikov, Jana Bielcikova, O. Eyser, Sedigheh Jowzaee, D. Keane, J. L. Romero, C. Dilks, S. W. Wissink, J. Thäder, D. Kalinkin, J. Engelage, Y. Zhang, T. Niida, A. Lebedev, Nikolai Smirnov, G. Nigmatkulov, J. C. Dunlop, L. Wen, L. Yi, Y. Wang, Y. Fisyak, P. Sorensen, Lin Ma, D. G. Underwood, E. Finch, Z. Shi, K. Oh, M. Saur, Peter Q. Liu, J. Kvapil, Xuedong Bai, Q. Yang, L. G. Efimov, J. M. Landgraf, Zubayer Ahammed, Nilay Shah, L. Didenko, I. Chakaberia, Chong Kim, Z. Ye, A. Vossen, M. Strikhanov, J. Cheng, T. K. Nayak, K. Yip, H. G. Ritter, Bedangadas Mohanty, J. Sandweiss, H. Z. Huang, S. Vokal, L. C. De Silva, Maowu Nie, Q. Y. Shou, X. Huang, M. Kocmanek, A. Harlenderova, Rafal Sikora, A. Kechechyan, R. Pak, J. L. Drachenberg, Olga Evdokimov, Barbara Antonina Trzeciak, W. Guryn, L. C. Bland, Pradip Kumar Sahu, Y. Panebratsev, D. Grosnick, J. Fedorisin, M. M. Mondal, S. Esumi, Jay Roberts, Anik Gupta, J. H. Chen, Chi Yang, D. N. Svirida, Jaroslav Bielcik, I. K. Yoo, M. Tokarev, Yang Yang, H. W. Ke, Frank Jm Geurts, D. A. Morozov, O. V. Rogachevskiy, A. Quintero, C. E. Flores, E. G. Judd, M. Zyzak, T. D. S. Stanislaus, H. H. Wieman, Vitaly Okorokov, Bernd Surrow, N. Elsey, C. Zhou, W. B. Schmidke, C. A. Gagliardi, K. Meehan, O. D. Tsai, A. Sharma, L. Song, W. Q. Shen, Xiang Sun, Zebo Tang, H. Liu, D. Garand, Sevil Salur, C. Perkins, R. S. Longacre, P. V. Shanmuganathan, D. Mallick, G. Igo, J. Bouchet, L. Krauth, Jongmin Lee, R. L. Ray, K. D. Landry, R. Ma, J. Butterworth, Y. F. Xu, Q. H. Xu, T. Ljubicic, J. Xu, Niseem Magdy, H. Caines, M. Lomnitz, P. Federicova, B. Huang, Justin Ewigleben, G. Odyniec, C. Zhong, E. C. Aschenauer, S. Margetis, X. Dong, E. P. Sichtermann, T. Ullrich, J. R. Adams, W. Solyst, J. Lidrych, G. Agakishiev, D. S. Gunarathne, D. Cebra, A. Taranenko, Zhanwen Zhu, S. Kabana, I. G. Alekseev, M. A. Lisa, J. C. Mei, Z. Chang, Shize Yang, M. Posik, H. M. Spinka, J. K. Adkins, R. Fatemi, L. He, J. H. Thomas, K. Krueger, L. P. Zhou, I. Kisel, M. Cherney, Lokesh Kumar, Hua Pei, S. K. Tripathy, K. Poniatowska, S. K. Gupta, Giacomo Contin, G. S. Averichev, Nihar Sahoo, J. Porter, Anthony Robert Timmins, Adam Ryszard Kisiel, H. J. Crawford, B. Pawlik, A. Gibson, S. Zhang, P. Chaloupka, Z. J. Xu, S. Trentalange, D. Arkhipkin, and A. Hamed
Subjects: Quantum chromodynamics, Quark, Physics, 010308 nuclear & particles physics, Elliptic flow, Hadron, General Physics and Astronomy, Lambda, 01 natural sciences, Nuclear physics, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Sum rule in quantum mechanics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: Rapidity-odd directed-flow measurements at midrapidity are presented for Λ, Λ[over ¯], K^{±}, K_{s}^{0}, and ϕ at sqrt[s_{NN}]=7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV in Au+Au collisions recorded by the Solenoidal Tracker detector at the Relativistic Heavy Ion Collider. These measurements greatly expand the scope of data available to constrain models with differing prescriptions for the equation of state of quantum chromodynamics. Results show good sensitivity for testing a picture where flow is assumed to be imposed before hadron formation and the observed particles are assumed to form via coalescence of constituent quarks. The pattern of departure from a coalescence-inspired sum rule can be a valuable new tool for probing the collision dynamics.
Published: 2018

34. Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at s=500 GeV

Author: J. M. Campbell, Jaroslav Bielcik, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, G. Eppley, W. Christie, I. G. Alekseev, Maksym Zyzak, O. V. Rogachevskiy, M. A. Lisa, A. Quintero, J. C. Mei, T. G. Dedovich, J. Porter, J. C. Webb, J. Pluta, N. Chankova-Bunzarova, W. Li, Ivan Kisel, Andrey Vasiliev, I. K. Yoo, C. E. Flores, E. G. Judd, Anik Gupta, J. Lidrych, R. Seto, Nasim, R. Witt, Vitaly Okorokov, Jian Deng, S. Mioduszewski, D. G. Underwood, J. D. Roth, Rene Bellwied, Janet Elizabeth Seger, G. Agakishiev, D. S. Gunarathne, O. D. Tsai, J. Y. Zhang, Bernd Surrow, Frank Jm Geurts, Prithwish Tribedy, Q. H. Xu, B. K. Srivastava, Z. Ye, D. Cebra, N. Elsey, Jana Bielcikova, A. Taranenko, N. Yu, D. Mayes, J. K. Adkins, K. Kauder, Maowu Nie, W. Q. Shen, Xiang Sun, J. H. Thomas, X. Huang, A. Kechechyan, Kejun Kang, L. V. Nogach, Zhanwen Zhu, S. Kabana, W. B. Schmidke, J. C. Dunlop, L. Wen, C. Zhou, P. Sorensen, J. Xu, C. A. Gagliardi, M. R. Girard, L. P. Zhou, Sumit R. Das, G. Van Nieuwenhuizen, H. Liu, David Stewart, Justin Ewigleben, G. Odyniec, J. Cheng, Pradip Kumar Sahu, R. Fatemi, L. He, K. Krueger, Benjamin Schweid, S. B. Nurushev, D. Arkhipkin, Zubayer Ahammed, A. Hamed, K. Meehan, Q. Yang, Sevil Salur, R. E. Tribble, J. W. Harris, M. J. Skoby, Joseph Kwasizur, D. Kapukchyan, Z. H. Khan, N. N. Ajitanand, Q. Y. Shou, Jorn Henning Putschke, Xiao-yan Li, A. V. Brandin, L. Fulek, R. Pak, J. L. Drachenberg, L. Didenko, I. Chakaberia, Thorsten Sven Kollegger, M. Cherney, M. Shao, G. Van Buren, Olga Evdokimov, Barbara Antonina Trzeciak, Xiangming Sun, J. Bryslawskyj, Roli Esha, M. Tokarev, James Brandenburg, J. Engelage, J. Fujita, G. S. Averichev, L. C. Bland, G. Nigmatkulov, Daniel Nemes, Jie Zhao, T. Lin, S. Horvat, Lokesh Kumar, J. R. Adams, Hua Pei, S. K. Tripathy, J. L. Romero, Vipul Bairathi, S. Heppelmann, A. K. Bhati, D. Keane, W. Solyst, Jay Roberts, S. S. Shi, K. N. Barish, B. J. Summa, A. H. Tang, E. Finch, Nikolai Smirnov, H. W. Ke, Z. Chang, Xuedong Bai, M. Simko, P. Federicova, J. M. Landgraf, Shize Yang, T. D. S. Stanislaus, K. Poniatowska, I. Bunzarov, J. B. Zhang, L. G. Efimov, Zebo Tang, B. Huang, Chi Yang, Giacomo Contin, M. Strikhanov, H. H. Wieman, P. Chaloupka, W. Zha, J. E. Draper, T. Nonaka, T. K. Nayak, N. K. Pruthi, P. Bhattarai, R. S. Longacre, M. Posik, Isaac Upsal, Arabinda Behera, Z. J. Xu, M. Kocmanek, Wei Xie, S. Trentalange, D. N. Svirida, H. M. Spinka, S. Ramachandran, O. Eyser, Nihar Sahoo, X. C. Chen, A. Aparin, Y. Panebratsev, Y. Pandit, C. Perkins, J. Sandweiss, K. Yip, P. V. Shanmuganathan, D. Grosnick, S. Fazio, D. Mallick, B. Pawlik, N. Schmitz, A. Gibson, E. Shahaliev, H. Z. Huang, S. Vokal, Peng Huo, A. Harlenderova, Anthony Robert Timmins, Adam Ryszard Kisiel, G. Igo, S. Zhang, A. A. Derevschikov, L. Yi, S. Esumi, M. Saur, J. Bouchet, L. Krauth, H. J. Crawford, Chong Kim, W. Guryn, R. Lacey, J. H. Chen, K. D. Landry, H. G. Ritter, J. Butterworth, D. A. Morozov, Tetsuro Sugiura, J. Thäder, Rafal Sikora, Y. J. Sun, Y. F. Xu, C. Dilks, T. J. Humanic, Zongye Zhang, Abdel Nasser Tawfik, J. Fedorisin, M. M. Mondal, Y. Guo, I. G. Bordyuzhin, B. S. Page, D. P. Kikola, B. Stringfellow, J. Kvapil, Nilay Shah, Xiaofeng Zhu, A. Ogawa, C-Q. Li, M. J. Rehbein, Christina Markert, D. Smirnov, O. Rusnakova, H. S. Matis, L. K. Kosarzewski, W. W. Jacobs, J. Lauret, R. Lednicky, L. Kochenda, T. Tarnowsky, I. M. Deppner, David Brown, F. Liu, Mariusz Przybycien, Y. Yang, R. D. Majka, J. Schambach, Anju Bhasin, T. Niida, A. Lebedev, Z. Shi, N. Kulathunga, N. Xu, P. Filip, Xiaofeng Luo, Guannan Xie, Xuan Zhang, R. Aoyama, Guo-Liang Ma, Hanna Paulina Zbroszczyk, G. D. Westfall, A. S. Hirsch, P. Kravtsov, R. Reed, A. M. Schmah, Bedangadas Mohanty, Michal Sumbera, S. W. Wissink, Y. Zhang, S. Mizuno, D. L. Olvitt, J. Rusnak, A. F. Kraishan, Arka Chatterjee, L. Ruan, Yu-Gang Ma, Muhammad Usman Ashraf, M. K. Mustafa, T. Todoroki, J. M. Nelson, W. J. Llope, Sergey Voloshin, Y. Li, S. Singha, Alexandre Alarcon Do Passo Suaide, Alexander Jentsch, A. Attri, K. Jiang, Y. Wang, Y. Fisyak, Zhigang Xiao, P. Liu, Yanjun Wu, T. Huang, F. Videbæk, Lin Ma, K. Oh, G. Webb, Yunpeng Liu, Sukalyan Chattopadhyay, M. Sergeeva, Derek Anderson, Siwei Luo, N. G. Minaev, P. Seyboth, Z. Feng, Jiangyong Jia, Leszek Adamczyk, P. Federic, Z. W. Miller, D. Tlusty, G. Wang, C. Zhong, E. C. Aschenauer, S. Margetis, X. Dong, E. P. Sichtermann, T. Ullrich, Jongmin Lee, R. L. Ray, R. Ma, Madan M. Aggarwal, T. Ljubicic, Fuqiang Wang, D. K. Mishra, Niseem Magdy, H. Caines, M. Lomnitz, D. Kalinkin, A. Vossen, and N. Herrmann
Subjects: Physics, Nuclear physics, Particle physics, Pion, 010308 nuclear & particles physics, 0103 physical sciences, Chatterjee, Fragmentation function, Beam polarization, 010306 general physics, 01 natural sciences
Abstract: Author(s): 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; Bryslawskyj, J; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; 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; 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; Filip, P; Finch, E; FisyaK, Y; Flores, CE; Fujita, J; FuleK, L | Abstract: We report the first measurements of transverse single-spin asymmetries for inclusive jet and jet+π± production at midrapidity from transversely polarized proton-proton collisions at s=500 GeV. The data were collected in 2011 with the STAR detector sampled from 23 pb-1 integrated luminosity with an average beam polarization of 53%. Asymmetries are reported for jets with transverse momenta 6
Published: 2018

35. Measurement of D0 Azimuthal Anisotropy at Midrapidity in Au+Au Collisions at sNN=200 GeV

Author: J. Lidrych, Chi Yang, D. N. Svirida, Jian Deng, Anju Bhasin, N. Kulathunga, N. Xu, G. Agakishiev, D. S. Gunarathne, P. Filip, T. Niida, J. L. Romero, A. Lebedev, Zongye Zhang, J. K. Adkins, Y. Guo, I. G. Bordyuzhin, Z. Shi, C. Zhong, E. C. Aschenauer, D. Cebra, P. Pile, A. Taranenko, G. D. Westfall, R. Fatemi, L. He, E. Finch, Xiaofeng Zhu, S. Margetis, A. Ogawa, Zhanwen Zhu, J. M. Campbell, S. Kabana, P. Seyboth, X. Dong, J. H. Thomas, Xuedong Bai, K. Krueger, C-Q. Li, M. J. Rehbein, Christina Markert, J. Engelage, L. P. Zhou, R. S. Longacre, Justin Ewigleben, Roli Esha, G. Odyniec, D. Smirnov, O. Rusnakova, H. S. Matis, L. K. Kosarzewski, W. W. Jacobs, J. L. Drachenberg, N. N. Ajitanand, J. Lauret, R. Lednicky, L. Kochenda, T. Tarnowsky, K. Kauder, B. Pawlik, Leszek Adamczyk, G. Nigmatkulov, W. Christie, Jaroslav Bielcik, P. V. Shanmuganathan, F. Videbæk, G. Webb, P. Federic, Muhammad Usman Ashraf, Z. W. Miller, Andrey Vasiliev, Olga Evdokimov, Barbara Antonina Trzeciak, D. Mallick, H. Z. Huang, S. Vokal, A. Gibson, T. G. Dedovich, Jie Zhao, T. Lin, S. Horvat, G. S. Averichev, J. M. Landgraf, Sergey Voloshin, S. Zhang, Arka Chatterjee, M. J. Skoby, Sukalyan Chattopadhyay, M. Strikhanov, G. Igo, M. Tokarev, Yang Yang, Jay Roberts, X.G. Li, Joseph Kwasizur, M. Shao, G. Van Buren, Michal Sumbera, J. Bouchet, Zebo Tang, L. Fulek, Janet Elizabeth Seger, Z. Chang, K. Jiang, K. D. Landry, M. K. Mustafa, D. Tlusty, Shize Yang, O. D. Tsai, J. Butterworth, H. W. Ke, O. V. Rogachevskiy, M. Simko, A. Quintero, J. Sandweiss, L. Yi, M. Saur, Yanjun Wu, S. S. Shi, Nasim, W. Solyst, V. A. Okorokov, Xiangming Sun, Y. F. Xu, Y. Li, S. Singha, T. Nonaka, Leo Clifford Greiner, David Brown, M. Cherney, J. W. Harris, S. W. Wissink, J. H. Chen, Peifeng Liu, Mukesh Sharma, M. R. Girard, F. Liu, M. Posik, Q. H. Xu, Lokesh Kumar, Wei Xie, G. Wang, Mariusz Przybycien, J. C. Dunlop, L. Wen, Arabinda Behera, H. M. Spinka, A. Aparin, T. D. S. Stanislaus, J. Xu, W. Zha, M. Sergeeva, H. G. Ritter, C. Perkins, Madan M. Aggarwal, I. G. Alekseev, M. A. Lisa, H. H. Wieman, J. C. Mei, Hua Pei, Fuqiang Wang, Y. Pandit, Siwei Luo, D. K. Mishra, D. A. Morozov, J. Porter, Yifei Zhang, N. Schmitz, Zubayer Ahammed, E. Shahaliev, R. D. Majka, Benjamin Schweid, Rafal Sikora, S. K. Tripathy, Yu-Gang Ma, D. Kalinkin, D. Arkhipkin, Hao Qiu, A. Hamed, J. Schambach, Ivan Kisel, Thorsten Sven Kollegger, L. Song, A. Vossen, P. Federicova, J. M. Nelson, Anik Gupta, B. Huang, Z. H. Khan, S. Esumi, D. G. Underwood, Jiangyong Jia, W. J. Llope, T. J. Humanic, Z. Feng, S. Heppelmann, Frank Jm Geurts, B. J. Summa, A. H. Tang, W. Q. Shen, I. K. Yoo, J. Y. Zhang, Q. Yang, Bernd Surrow, A. M. Poskanzer, Z. Ye, Abdel Nasser Tawfik, N. Yu, Q. Y. Shou, Alexander Jentsch, N. Elsey, C. Zhou, Kejun Kang, L. V. Nogach, I. Bunzarov, K. Meehan, Maowu Nie, X. Huang, W. B. Schmidke, J. B. Zhang, J. Cheng, Sumit R. Das, G. Van Nieuwenhuizen, J. E. Draper, A. Attri, A. Kechechyan, C. A. Gagliardi, R. Pak, A. Sharma, S. Ramachandran, Xiang Sun, Pradip Kumar Sahu, D. L. Olvitt, C. E. Flores, E. G. Judd, O. Eyser, B. S. Page, L. C. De Silva, K. Poniatowska, N. K. Pruthi, D. P. Kikola, Y. Wang, Guannan Xie, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Xuan Zhang, Peng Huo, Bedangadas Mohanty, B. Stringfellow, S. K. Gupta, A. Harlenderova, Giacomo Contin, P. Bhattarai, R. Aoyama, R. Witt, Isaac Upsal, S. B. Nurushev, W. Guryn, Hanna Paulina Zbroszczyk, S. Fazio, P. Chaloupka, S. Mioduszewski, G. Eppley, R. Lacey, M. A. Szelezniak, Xuliang Chen, Z. J. Xu, Tetsuro Sugiura, Y. J. Sun, Prithwish Tribedy, B. K. Srivastava, Xiaofeng Luo, C. Dilks, Guo-Liang Ma, Nihar Sahoo, R. Reed, S. Trentalange, J. Pluta, J. Fedorisin, H. Liu, A. S. Hirsch, M. M. Mondal, P. Kravtsov, A. M. Schmah, N. Chankova-Bunzarova, W. Li, J. D. Roth, Rene Bellwied, Anthony Robert Timmins, Adam Ryszard Kisiel, D. Garand, H. J. Crawford, R. E. Tribble, J. Thäder, Gerald W Hoffmann, Sevil Salur, E. P. Sichtermann, T. Ullrich, Jongmin Lee, R. L. Ray, R. Ma, T. Ljubicic, Niseem Magdy, H. Caines, M. Lomnitz, A. K. Bhati, D. Keane, Nikolai Smirnov, L. G. Efimov, T. K. Nayak, M. Kocmanek, Y. Panebratsev, D. Grosnick, K. Yip, R. R. Debbe, J. Kvapil, Nilay Shah, Y. Fisyak, Jorn Henning Putschke, Lin Ma, K. Oh, A. V. Brandin, Vipul Bairathi, Jana Bielcikova, P. Sorensen, L. Didenko, I. Chakaberia, Maksym Zyzak, Zhigang Xiao, T. Huang, J. C. Webb, Yunpeng Liu, Derek Anderson, N. G. Minaev, James Brandenburg, S. Mizuno, J. Rusnak, A. F. Kraishan, L. E. Dunkelberger, L. Ruan, A. A. Derevschikov, T. Todoroki, and L. C. Bland
Subjects: Nuclear reaction, Physics, Meson, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, Kinetic energy, 01 natural sciences, Particle identification, Charm quark, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Dimensionless quantity
Abstract: We report the first measurement of the elliptic anisotropy (v_{2}) of the charm meson D^{0} at midrapidity (|y
Published: 2017

36. Measurement of the cross section and longitudinal double-spin asymmetry for dijet production in polarized pp collisions at s=200 GeV

Author: Nasim, Jongmin Lee, R. L. Ray, R. Ma, D. Kalinkin, T. Ljubicic, B. Pawlik, S. Heppelmann, D. Tlusty, Niseem Magdy, H. Caines, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, J. K. Adkins, A. Quintero, B. J. Summa, S. Zhang, S. Fazio, Zongye Zhang, P. Chaloupka, Ting Lin, S. Trentalange, V. A. Okorokov, R. Fatemi, L. He, P. Seyboth, H. Liu, I. G. Bordyuzhin, Madan M. Aggarwal, Arka Chatterjee, P. Sorensen, Joseph Kwasizur, Benjamin Schweid, T. J. Humanic, D. Arkhipkin, A. Hamed, Qi Yang, M. Saur, Fuqiang Wang, D. K. Mishra, Dukhishyam Mallick, Niladribihari Sahoo, Z. H. Khan, I. Upsal, Leszek Adamczyk, Z. W. Miller, J. Thäder, Chong Kim, A. V. Brandin, J. Porter, Ivan Kisel, M. Sergeeva, Xin Chen, M. Cherney, S. Ramachandran, O. Eyser, A. Vossen, Xiangming Sun, Lokesh Kumar, Hua Pei, I. K. Yoo, E. P. Sichtermann, S. Esumi, S. K. Tripathy, M. Shao, G. Van Buren, Q. H. Xu, J. Xu, M. K. Mustafa, H. G. Ritter, Vipul Bairathi, Abdel Nasser Tawfik, B. Huang, Jana Bielcikova, J. Engelage, G. Nigmatkulov, Y. F. Wu, M. M. Mondal, C. E. Flores, E. G. Judd, Jaroslav Bielcik, J. Rusnak, A. F. Kraishan, L. Ruan, Justin Ewigleben, A. Gibson, C. Zhong, David Brown, J. Putschke, Xiaofeng Zhu, T. Ullrich, S. S. Shi, Y. Li, Guo-Liang Ma, A. Ogawa, K. Poniatowska, S. K. Gupta, Giacomo Contin, N. N. Ajitanand, Li Yi, Jie Zhang, J. M. Landgraf, Yu-Gang Ma, T. Kollegger, Bedangadas Mohanty, Muhammad Usman Ashraf, Sergey Voloshin, J. W. Harris, C-Q. Li, J. H. Thomas, J. M. Nelson, M. Strikhanov, B. S. Page, Rafal Sikora, G. Wang, D. P. Kikola, Guannan Xie, H. Z. Huang, Xuan Zhang, O. V. Rogachevskiy, S. Vokal, L. Didenko, I. Chakaberia, Manish Sharma, P. Federicova, B. Stringfellow, T. Todoroki, D. Kapukchyan, James Brandenburg, N. K. Pruthi, J. Fujita, P. Federic, L. P. Zhou, Anthony Robert Timmins, Adam Ryszard Kisiel, A. S. Hirsch, R. Aoyama, M. J. Rehbein, Christina Markert, O. Rusnakova, Zebo Tang, L. C. Bland, K. N. Barish, N. Kulathunga, N. Xu, P. Filip, H. S. Matis, G. Eppley, H. J. Crawford, P. V. Shanmuganathan, K. Yip, G. S. Averichev, G. Odyniec, J. Sandweiss, L. K. Kosarzewski, R. R. Debbe, Y. F. Xu, M. Tokarev, Yang Yang, J. L. Romero, P. Pile, G. D. Westfall, S. Das, W. W. Jacobs, T. Tarnowsky, P. Kravtsov, A. M. Schmah, Dmitry Smirnov, F. Liu, Miroslav Simko, Shangfeng Yang, J. H. Chen, J. C. Webb, Z. Chang, L. E. Dunkelberger, Mariusz Przybycien, Archana Sharma, C. Yang, Michal Sumbera, Bernd Surrow, J. Lauret, R. S. Longacre, Hao Qiu, A. Gupta, J. Pluta, E. Finch, M. Zyzak, D. A. Morozov, W. Solyst, M. Posik, Arabinda Behera, H. M. Spinka, Hanna Paulina Zbroszczyk, Xuedong Bai, R. Lednicky, T. D. S. Stanislaus, S. W. Wissink, N. Elsey, K. Jiang, C. Perkins, E. C. Aschenauer, Y. Wang, L. Kochenda, N. Chankova-Bunzarova, W. Li, A. A. Derevschikov, Y. Zhang, X. G. Luo, A. H. Tang, H. H. Wieman, G. Igo, I. Bunzarov, J. D. Roth, S. Margetis, Rene Bellwied, W. B. Schmidke, J. E. Draper, J. Bouchet, L. Krauth, Wei Xie, G. J. van Nieuwenhuizen, R. Reed, Zhigang Xiao, C. A. Gagliardi, T. Huang, R. E. Tribble, K. D. Landry, K. Kauder, A. Taranenko, I. G. Alekseev, M. A. Lisa, J. Butterworth, F. Videbæk, Y. Fisyak, G. Webb, Yunpeng Liu, Derek Anderson, J. C. Mei, D. N. Svirida, A. Aparin, Sukalyan Chattopadhyay, Lin Ma, X. Dong, K. Oh, N. G. Minaev, Gerald W Hoffmann, R. Seto, M. J. Skoby, Frank Jm Geurts, Y. Pandit, Z. Ye, N. Schmitz, W. J. Llope, Maowu Nie, C. Zhou, R. D. Majka, E. Shahaliev, X. Huang, S. B. Nurushev, A. Kechechyan, Pradip Kumar Sahu, K. Meehan, T. Nonaka, J. Kvapil, Jindrich Lidrych, Nilay Shah, Alexander Jentsch, Siwei Luo, J. L. Drachenberg, Jian Deng, S. Mizuno, Z. Feng, M. Lomnitz, Roli Esha, A. Attri, Jie Zhao, S. Horvat, G. Agakishiev, D. S. Gunarathne, M. R. Girard, D. L. Olvitt, Jiangyong Jia, D. Cebra, P. Bhattarai, J. Schambach, H. W. Ke, L. Fulek, W. Zha, Zhanwen Zhu, W. Christie, Tetsuro Sugiura, Y. J. Sun, C. Dilks, S. Kabana, Peng Huo, A. Harlenderova, Subhash Singha, Andrey Vasiliev, X. M. Sun, W. Guryn, R. Lacey, X.G. Li, Janet Elizabeth Seger, J. Fedorisin, Anju Bhasin, K. Kang, T. Niida, A. Lebedev, D. G. Underwood, Z. Shi, J. Cheng, L. C. De Silva, R. Witt, S. Mioduszewski, Prithwish Tribedy, B. K. Srivastava, J. C. Dunlop, L. Wen, Zubayer Ahammed, Q. Y. Shou, R. Pak, Olga Evdokimov, Barbara Antonina Trzeciak, Jay Roberts, K. Krueger, J. M. Campbell, T. G. Dedovich, J. Y. Zhang, N. Yu, L. V. Nogach, O. D. Tsai, L. Song, W. Q. Shen, D. Garand, Sevil Salur, A. K. Bhati, D. Keane, L. G. Efimov, T. K. Nayak, M. Kocmanek, Peng Liu, Y. Panebratsev, D. Grosnick, Z. Z. Xu, Nikita Smirnov, and Y. Guo
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, media_common.quotation_subject, High Energy Physics::Phenomenology, Perturbative QCD, Polarization (waves), 01 natural sciences, Asymmetry, Gluon, Nuclear physics, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, media_common
Abstract: We report the first measurement of the longitudinal double-spin asymmetry A(LL) for midrapidity dijet production in polarized pp collisions at a center-of-mass energy of root s = 200 GeV. The dijet cross section was measured and is shown to be consistent with next-to-leading order (NLO) perturbative QCD predictions. A(LL) results are presented for two distinct topologies, defined by the jet pseudorapidities, and are compared to predictions from several recent NLO global analyses. The measured asymmetries, the first such correlation measurements, support those analyses that find positive gluon polarization at the level of roughly 0.2 over the region of Bjorken-x > 0.05.
Published: 2017

37. Elliptic flow of electrons from heavy-flavor hadron decays in Au + Au collisions at sNN=200 , 62.4, and 39 GeV

Author: P. Filip, P. Pile, G. D. Westfall, S. Das, I. G. Alekseev, M. A. Lisa, J. C. Mei, A. Gupta, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, N. N. Ajitanand, Peng Huo, A. Harlenderova, M. Tokarev, Yang Yang, W. Guryn, R. Lacey, C-Q. Li, Dukhishyam Mallick, Justin Ewigleben, A. Gibson, T. D. S. Stanislaus, C. Zhong, J. Fedorisin, H. H. Wieman, Zhigang Xiao, David Brown, T. Kollegger, T. Huang, Yunpeng Liu, Derek Anderson, N. G. Minaev, J. Rusnak, A. F. Kraishan, Arka Chatterjee, E. P. Sichtermann, F. Liu, M. J. Rehbein, Christina Markert, L. Ruan, W. J. Llope, C. Zhou, Miroslav Simko, Mariusz Przybycien, F. Videbæk, T. Todoroki, K. Yip, R. R. Debbe, O. Rusnakova, H. S. Matis, J. C. Webb, J. C. Dunlop, L. Wen, Zebo Tang, G. Webb, Jaroslav Bielcik, Alexander Jentsch, D. G. Underwood, M. K. Mustafa, Sukalyan Chattopadhyay, L. K. Kosarzewski, W. W. Jacobs, R. D. Majka, G. Eppley, A. Attri, Y. Li, Zubayer Ahammed, J. Lauret, Jie Zhang, J. L. Drachenberg, J. Schambach, A. V. Brandin, P. Bhattarai, T. Ullrich, O. V. Rogachevskiy, J. Cheng, Wei Xie, Z. Ye, P. Seyboth, Siwei Luo, Vipul Bairathi, Anju Bhasin, Maowu Nie, X. Huang, A. Kechechyan, A. Aparin, P. Federic, J. H. Thomas, L. C. De Silva, Pradip Kumar Sahu, T. Nonaka, C. Perkins, R. Lednicky, L. Kochenda, R. S. Longacre, Q. Y. Shou, D. Kalinkin, S. Heppelmann, S. Mizuno, Z. Feng, James Brandenburg, J. W. Harris, K. Kang, T. Niida, Leszek Adamczyk, M. Kocmanek, Peng Liu, Y. Panebratsev, D. Grosnick, M. Lomnitz, L. P. Zhou, Y. Pandit, A. Lebedev, P. V. Shanmuganathan, Z. Shi, N. Schmitz, B. J. Summa, E. Shahaliev, R. Pak, Roli Esha, T. Tarnowsky, M. J. Skoby, Frank Jm Geurts, J. Pluta, M. Zyzak, W. Xu, S. Horvat, Z. W. Miller, D. L. Olvitt, L. E. Dunkelberger, Jiangyong Jia, X. G. Luo, A. H. Tang, G. S. Averichev, Bernd Surrow, N. Elsey, Z. Z. Xu, N. Chankova-Bunzarova, J. Kvapil, J. L. Romero, E. C. Aschenauer, J. Putschke, Xiaofeng Zhu, R. Witt, I. Bunzarov, G. Igo, J. Porter, W. Christie, W. Li, S. Ramachandran, S. Margetis, K. Meehan, Jindrich Lidrych, W. Zha, O. Eyser, H. W. Ke, L. Fulek, A. A. Derevschikov, W. B. Schmidke, Nikita Smirnov, Nilay Shah, C. A. Gagliardi, S. Mioduszewski, E. Finch, X. Dong, Ivan Kisel, A. Ogawa, Subhash Singha, Xuedong Bai, J. Bouchet, Andrey Vasiliev, J. D. Roth, Rene Bellwied, Madan M. Aggarwal, O. D. Tsai, Fuqiang Wang, D. K. Mishra, Guo-Liang Ma, J. M. Campbell, Li Yi, K. D. Landry, K. Kauder, A. Taranenko, J. Butterworth, Jana Bielcikova, Tetsuro Sugiura, Prithwish Tribedy, B. K. Srivastava, X.G. Li, Janet Elizabeth Seger, A. Vossen, T. G. Dedovich, L. Song, S. Fazio, Zongye Zhang, Y. F. Wu, W. Q. Shen, R. E. Tribble, Y. J. Sun, S. Esumi, Y. Guo, A. S. Hirsch, Muhammad Usman Ashraf, Sergey Voloshin, C. Dilks, Jize Zhao, Jongmin Lee, R. L. Ray, I. G. Bordyuzhin, M. Saur, Olga Evdokimov, Barbara Antonina Trzeciak, R. Ma, P. Kravtsov, A. M. Schmah, Dmitry Smirnov, J. Y. Zhang, Qi Yang, S. Kabana, D. Garand, N. Yu, L. V. Nogach, K. Jiang, M. Sergeeva, Gerald W Hoffmann, Q. H. Xu, T. Ljubicic, Y. Wang, G. J. van Nieuwenhuizen, L. Didenko, I. Chakaberia, Sevil Salur, H. G. Ritter, H. Caines, Rafal Sikora, A. Quintero, J. Xu, Y. Fisyak, Jay Roberts, Abdel Nasser Tawfik, Z. Chang, Lin Ma, L. C. Bland, K. Oh, B. Huang, A. K. Bhati, D. Keane, Archana Sharma, K. Krueger, Y. F. Xu, R. Stock, L. G. Efimov, G. Wang, K. Poniatowska, S. K. Gupta, M. Posik, T. K. Nayak, N. K. Pruthi, Giacomo Contin, Arabinda Behera, B. S. Page, Manish Sharma, H. M. Spinka, P. Federicova, D. N. Svirida, D. P. Kikola, Hao Qiu, W. Solyst, B. Stringfellow, Guannan Xie, Xuan Zhang, H. Liu, R. Aoyama, Hanna Paulina Zbroszczyk, R. Reed, Jian Deng, Benjamin Schweid, Anthony Robert Timmins, Adam Ryszard Kisiel, T. J. Humanic, D. Arkhipkin, A. Hamed, J. Engelage, G. Nigmatkulov, G. Agakishiev, D. S. Gunarathne, D. Cebra, J. M. Landgraf, M. Strikhanov, H. J. Crawford, J. K. Adkins, M. R. Girard, R. Fatemi, L. He, H. Z. Huang, S. Vokal, G. Odyniec, J. Sandweiss, Nasim, I. Upsal, P. Chaloupka, Ting Lin, D. Tlusty, Shangfeng Yang, J. Thäder, J. H. Chen, S. Trentalange, N. Magdy, M. Cherney, Xiangming Sun, Niladribihari Sahoo, Lokesh Kumar, D. A. Morozov, Bedangadas Mohanty, Hua Pei, S. K. Tripathy, Z. H. Khan, B. Pawlik, S. Zhang, V. A. Okorokov, A. M. Poskanzer, Zhanwen Zhu, Michal Sumbera, S. W. Wissink, Y. Zhang, Xuliang Chen, J. E. Draper, I. K. Yoo, M. M. Mondal, C. E. Flores, E. G. Judd, X. M. Sun, C. Yang, S. B. Nurushev, P. Sorensen, Joseph Kwasizur, M. Shao, G. Van Buren, S. S. Shi, J. M. Nelson, Y. G. Ma, N. Kulathunga, and N. Xu
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Elliptic flow, Hadron, Elementary particle, Fermion, Electron, 01 natural sciences, Charged particle, Charm quark, Nuclear physics, 0103 physical sciences, 010306 general physics, Lepton
Abstract: Author(s): 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; Calderon De La Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, X; 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; Fulek, L; Gagliardi, CA; Garand, D | Abstract: We present measurements of elliptic flow (v2) of electrons from the decays of heavy-flavor hadrons (eHF) by the STAR experiment. For Au+Au collisions at sNN=200 GeV we report v2, for transverse momentum (pT) between 0.2 and 7 GeV/c, using three methods: the event plane method (v2{EP}), two-particle correlations (v2{2}), and four-particle correlations (v2{4}). For Au+Au collisions at sNN=62.4 and 39 GeV we report v2{2} for pTl2GeV/c. v2{2} and v2{4} are nonzero at low and intermediate pT at 200 GeV, and v2{2} is consistent with zero at low pT at other energies. The v2{2} at the two lower beam energies is systematically lower than at sNN=200 GeV for pTl1GeV/c. This difference may suggest that charm quarks interact less strongly with the surrounding nuclear matter at those two lower energies compared to sNN=200 GeV.
Published: 2017

38. Observables for longitudinal flow correlations in heavy-ion collisions

Author: Maowu Nie, Guo-Liang Ma, Peng Huo, and Jiangyong Jia
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Nuclear Theory, 010308 nuclear & particles physics, FOS: Physical sciences, Observable, Function (mathematics), Correlation function (quantum field theory), 01 natural sciences, Nuclear Theory (nucl-th), Nonlinear system, Flow (mathematics), Pseudorapidity, 0103 physical sciences, Initial value problem, Boundary value problem, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment
Abstract: We propose several new observables/correlators, based on correlations between two or more subevents separated in pseudorapidity $\eta$, to study the longitudinal flow fluctuations. We show that these observables are sensitive to the event-by-event fluctuations, as a function of $\eta$, of the initial condition as well as the non-linear mode-mixing effects. Experimental measurement of these observables shall provide important new constraints on the boost-variant event-by-event initial conditions required by all 3+1-dimensional viscous hydrodynamics models., Comment: 7 pages, 2 figures, a few typo corrected
Published: 2017

39. Observation of $β$-delayed two-proton emission in the decay of $^{22}$Si

Author: Yilin Wang, Youhua Yang, X. X. Xu, Ye-Ling Zhou, H. W. Wang, Min Wang, Y. H. Zhang, Mei Huang, Jie Wang, X.W. Ma, H. S. Xu, Peng Ma, H. L. Zang, C.Z. Shi, J. G. Li, N.R. Ma, Z. H. Li, Cenxi Yuan, Zhen Bai, D.X. Wang, L.J. Sun, H. J. Li, D. Q. Fang, Guang-Cheng Xiao, Xiaojuan Zhou, L. Yang, H.M. Jia, J. B. Ma, F. Yang, H.Q. Zhang, Y. G. Ma, Z. G. Hu, Xiuping Li, Jenny Lee, J. S. Wang, Kun Wang, Cheng-Jian Lin, Maowu Nie, Z.H. Liu, Miao Liu, S. Jin, J. G. Chen, Y. H. Lam, N. A. Smirnova, W.H. Ma, Cheng Li, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), and Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Nuclear and High Energy Physics, Silicon, 010308 nuclear & particles physics, Nuclear Theory, chemistry.chemical_element, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, lcsh:QC1-999, medicine.anatomical_structure, chemistry, 0103 physical sciences, medicine, Isobaric process, Atomic physics, Proton emission, 010306 general physics, Nuclear Experiment, Nucleus, lcsh:Physics, Energy (signal processing), Fermi Gamma-ray Space Telescope, Line (formation)
Abstract: International audience; The decay of the lightest nucleus with Tz=−3 , 22 Si, was studied by a silicon array. A charged-particle group at 5600 (70) keV in the decay-energy spectrum was identified experimentally as β -delayed two-proton emission from the isobaric analog state (IAS) of 22 Al. Experimental results of the IAS fed by a superallowed Fermi transition were compared with our large-scale shell-model calculations. The ground-state mass of 22 Si was obtained indirectly in the experiment for the first time. Two-proton separation energy for 22 Si is deduced to be −108 (125) keV, which indicates that it is a very marginal candidate for two-proton ground-state emission.
Published: 2017

40. Properties of Full Jet in High-Energy Heavy-Ion Collisions from Parton Scatterings

Author: Maowu Nie and Guo-Liang Ma
Subjects: Coalescence (physics), Nuclear reaction, Physics, Nuclear and High Energy Physics, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Parton, Elementary particle, Asymmetry, lcsh:QC1-999, Hadronization, Nuclear physics, High Energy Physics::Experiment, Anisotropy, Nuclear Experiment, lcsh:Physics, media_common
Abstract: The properties of fully reconstructed jet are investigated in p + p and Pb + Pb collisions atsNN= 2.76 TeV within a multiphase transport (AMPT) model with both partonic scatterings and hadronic rescatterings. A large transverse momentum (pT) asymmetry of dijet or photon-jet arises from the strong interactions between jet and partonic matter. Theξ-dependent jet fragmentation function in Pb + Pb collisions is decomposed into two contributions from different jet hadronization mechanisms, that is, fragmentation versus coalescence. The medium modification of differential jet shape displays that the jet energy is redistributed towards a larger radius owing to jet-medium interactions in heavy-ion collisions. Jet triangular azimuthal anisotropy coefficient,v3jet, which shows a smaller magnitude than the elliptic coefficientv2jet, decreases more quickly with increasing jetpT, which can be attributed to a path-length effect of jet energy loss. All of these properties of full jet are consistent with the jet energy loss mechanism in a stronglyinteracting partonic matter in high-energy heavy-ion collisions.
Published: 2015

41. Influence of initial-state momentum anisotropy on the final-state collectivity in small collision systems.

Author: Maowu Nie, Li Yi, Xiaofeng Luo, Guoliang Ma, and Jiangyong Jia
Subjects: *ANISOTROPY, *GEOMETRY, *PARTONS, *MOMENTUM (Mechanics), *GEOMETRIC shapes
Abstract: A multiphase transport model is used to understand the origin of long-range collective azimuthal correlations in small-system collisions. To disentangle between collectivity associated with initial-state intrinsic momentum anisotropy and the collectivity arising as a final-state response to the collision geometry, we studied the development of collectivity in 5.02-TeV p + Pb collisions with both initial-state and final-state effects included. We find that the initial momentum anisotropy may not be fully isotropized through parton interactions, and the final-state partonic collectivity in general is correlated with both the initial momentum anisotropy and the shape of the collision geometry. The initial momentum anisotropy also influences the event-by-event fluctuation of collective flow. Therefore, the mere evidence of the geometry response of the collective flow cannot rule out the presence of large contributions from the initial state. [ABSTRACT FROM AUTHOR]
Published: 2019
Full Text: View/download PDF

42. Observables for longitudinal flow correlations in heavy-ion collisions.

Author: Jiangyong Jia, Peng Huo, Guoliang Ma, and Maowu Nie
Subjects: HEAVY-ion atom collisions, FLUID flow, HYDRODYNAMICS, PARTICLE physics, PARTICLE density (Nuclear chemistry)
Abstract: We propose several new observables/correlators, based on correlations between two or more subevents separated in pseudorapidity η, to study the longitudinal flow fluctuations. We show that these observables are sensitive to the event-by-event fluctuations, as a function of η, of the initial condition as well as the nonlinear mode-mixing effects. Experimental measurement of these observables shall provide important new constraints on the boost-variant event-by-event initial conditions required by all 3+1-dimensional viscous hydrodynamics models. [ABSTRACT FROM AUTHOR]
Published: 2017
Full Text: View/download PDF

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