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9 results on '"Frawley AD"'

1. Nonperturbative-transverse-momentum broadening in dihadron angular correlations in sNN =200 GeV proton-nucleus collisions

Author

Aidala, C, Akiba, Y, Alfred, M, Andrieux, V, Apadula, N, Asano, H, Azmoun, B, Babintsev, V, Bandara, NS, Barish, KN, Bathe, S, Bazilevsky, A, Beaumier, M, Belmont, R, Berdnikov, A, Berdnikov, Y, Blau, DS, Boer, M, Bok, JS, Brooks, ML, Bryslawskyj, J, Bumazhnov, V, Campbell, S, Canoa Roman, V, Cervantes, R, Chi, CY, Chiu, M, Choi, IJ, Choi, JB, Citron, Z, Connors, M, Cronin, N, Csanád, M, Csörgo, T, Danley, TW, Daugherity, MS, David, G, Deblasio, K, Dehmelt, K, Denisov, A, Deshpande, A, Desmond, EJ, Dion, A, Dixit, D, Do, JH, Drees, A, Drees, KA, Durham, JM, Durum, A, Enokizono, A, En'Yo, H, Esumi, S, Fadem, B, Fan, W, Feege, N, Fields, DE, Finger, M, Fokin, SL, Frantz, JE, Franz, A, Frawley, AD, Fukuda, Y, Gal, C, Gallus, P, Garg, P, Ge, H, Giordano, F, Goto, Y, Grau, N, Greene, SV, Grosse Perdekamp, M, Gunji, T, Guragain, H, Hachiya, T, Haggerty, JS, Hahn, KI, Hamagaki, H, Hamilton, HF, Han, SY, Hanks, J, Hasegawa, S, Haseler, TOS, He, X, Hemmick, TK, Hill, JC, Hill, K, Hodges, A, Hollis, RS, Homma, K, Hong, B, Hoshino, T, Hotvedt, N, Huang, J, Huang, S, Imai, K, Inaba, M, Iordanova, A, Isenhower, D, and Ivanishchev, D

Subjects
hep-ex, nucl-ex
Abstract

The PHENIX collaboration has measured high-pT dihadron correlations in p+p, p+Al, and p+Au collisions at sNN=200 GeV. The correlations arise from inter- and intrajet correlations and thus have sensitivity to nonperturbative effects in both the initial and final states. The distributions of pout, the transverse-momentum component of the associated hadron perpendicular to the trigger hadron, are sensitive to initial- and final-state transverse momenta. These distributions are measured multidifferentially as a function of xE, the longitudinal momentum fraction of the associated hadron with respect to the trigger hadron. The near-side pout widths, sensitive to fragmentation transverse momentum, show no significant broadening between p+Au, p+Al, and p+p. The away-side nonperturbative pout widths are found to be broadened in p+Au when compared to p+p; however, there is no significant broadening in p+Al compared to p+p collisions. The data also suggest that the away-side pout broadening is a function of Ncoll, the number of binary nucleon-nucleon collisions, in the interaction. The potential implications of these results with regard to initial- and final-state transverse-momentum broadening and energy loss of partons in a nucleus, among other nuclear effects, are discussed.

Published
2019

2. Nonperturbative-transverse-momentum broadening in dihadron angular correlations in sNN=200GeV proton-nucleus collisions

Author

Aidala, C, Akiba, Y, Alfred, M, Andrieux, V, Apadula, N, Asano, H, Azmoun, B, Babintsev, V, Bandara, NS, Barish, KN, Bathe, S, Bazilevsky, A, Beaumier, M, Belmont, R, Berdnikov, A, Berdnikov, Y, Blau, DS, Boer, M, Bok, JS, Brooks, ML, Bryslawskyj, J, Bumazhnov, V, Campbell, S, Roman, V Canoa, Cervantes, R, Y., C, Chiu, M, Choi, IJ, Choi, JB, Citron, Z, Connors, M, Cronin, N, Csanád, M, Csörgő, T, Danley, TW, Daugherity, MS, David, G, DeBlasio, K, Dehmelt, K, Denisov, A, Deshpande, A, Desmond, EJ, Dion, A, Dixit, D, H., J, Drees, A, Drees, KA, Durham, JM, Durum, A, Enokizono, A, En'yo, H, Esumi, S, Fadem, B, Fan, W, Feege, N, Fields, DE, Finger, M, Fokin, SL, Frantz, JE, Franz, A, Frawley, AD, Fukuda, Y, Gal, C, Gallus, P, Garg, P, Ge, H, Giordano, F, Goto, Y, Grau, N, Greene, SV, Perdekamp, M Grosse, Gunji, T, Guragain, H, Hachiya, T, Haggerty, JS, Hahn, KI, Hamagaki, H, Hamilton, HF, Han, SY, Hanks, J, Hasegawa, S, Haseler, TOS, He, X, Hemmick, TK, Hill, JC, Hill, K, Hodges, A, Hollis, RS, Homma, K, Hong, B, Hoshino, T, Hotvedt, N, Huang, J, Huang, S, Imai, K, Inaba, M, Iordanova, A, Isenhower, D, and Ivanishchev, D

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, hep-ex, nucl-ex, Nuclear and plasma physics
Abstract

The PHENIX collaboration has measured high-pT dihadron correlations in p+p, p+Al, and p+Au collisions at sNN=200 GeV. The correlations arise from inter- and intrajet correlations and thus have sensitivity to nonperturbative effects in both the initial and final states. The distributions of pout, the transverse-momentum component of the associated hadron perpendicular to the trigger hadron, are sensitive to initial- and final-state transverse momenta. These distributions are measured multidifferentially as a function of xE, the longitudinal momentum fraction of the associated hadron with respect to the trigger hadron. The near-side pout widths, sensitive to fragmentation transverse momentum, show no significant broadening between p+Au, p+Al, and p+p. The away-side nonperturbative pout widths are found to be broadened in p+Au when compared to p+p; however, there is no significant broadening in p+Al compared to p+p collisions. The data also suggest that the away-side pout broadening is a function of Ncoll, the number of binary nucleon-nucleon collisions, in the interaction. The potential implications of these results with regard to initial- and final-state transverse-momentum broadening and energy loss of partons in a nucleus, among other nuclear effects, are discussed.

Published
2019

3. Multiparticle azimuthal correlations for extracting event-by-event elliptic and triangular flow in Au + Au collisions at sNN =200 GeV

Author

Adare, A, Aidala, C, Ajitanand, NN, Akiba, Y, Alfred, M, Apadula, N, Asano, H, Azmoun, B, Babintsev, V, Bagoly, A, Bai, M, Bandara, NS, Bannier, B, Barish, KN, Bathe, S, Bazilevsky, A, Beaumier, M, Beckman, S, Belmont, R, Berdnikov, A, Berdnikov, Y, Blau, DS, Boer, M, Bok, JS, Boyle, K, Brooks, ML, Bryslawskyj, J, Bumazhnov, V, Campbell, S, Canoa Roman, V, Chen, CH, Chi, CY, Chiu, M, Choi, IJ, Choi, JB, Chujo, T, Citron, Z, Connors, M, Csanád, M, Csörgo, T, Danley, TW, Datta, A, Daugherity, MS, David, G, Deblasio, K, Dehmelt, K, Denisov, A, Deshpande, A, Desmond, EJ, Dion, A, Diss, PB, Do, JH, Drees, A, Drees, KA, Durham, JM, Durum, A, Enokizono, A, Esumi, S, Fadem, B, Fan, W, Feege, N, Fields, DE, Finger, M, Fokin, SL, Frantz, JE, Franz, A, Frawley, AD, Gal, C, Gallus, P, Garg, P, Ge, H, Giordano, F, Glenn, A, Goto, Y, Grau, N, Greene, SV, Grosse Perdekamp, M, Gunji, T, Hachiya, T, Haggerty, JS, Hahn, KI, Hamagaki, H, Hamilton, HF, Han, SY, Hanks, J, Hasegawa, S, Haseler, TOS, Hashimoto, K, He, X, Hemmick, TK, Hill, JC, Hill, K, Hodges, A, Hollis, RS, Homma, K, Hong, B, Hoshino, T, Hotvedt, N, and Huang, J

Subjects
nucl-ex, hep-ex
Abstract

We present measurements of elliptic and triangular azimuthal anisotropy of charged particles detected at forward rapidity 1

Published
2019

4. Multiparticle azimuthal correlations for extracting event-by-event elliptic and triangular flow in Au + Au collisions at sNN=200 GeV

Author

Adare, A, Aidala, C, Ajitanand, NN, Akiba, Y, Alfred, M, Apadula, N, Asano, H, Azmoun, B, Babintsev, V, Bagoly, A, Bai, M, Bandara, NS, Bannier, B, Barish, KN, Bathe, S, Bazilevsky, A, Beaumier, M, Beckman, S, Belmont, R, Berdnikov, A, Berdnikov, Y, Blau, DS, Boer, M, Bok, JS, Boyle, K, Brooks, ML, Bryslawskyj, J, Bumazhnov, V, Campbell, S, Roman, V Canoa, Chen, C-H, Y., C, Chiu, M, Choi, IJ, Choi, JB, Chujo, T, Citron, Z, Connors, M, Csanád, M, Csörgő, T, Danley, TW, Datta, A, Daugherity, MS, David, G, DeBlasio, K, Dehmelt, K, Denisov, A, Deshpande, A, Desmond, EJ, Dion, A, Diss, PB, H., J, Drees, A, Drees, KA, Durham, JM, Durum, A, Enokizono, A, Esumi, S, Fadem, B, Fan, W, Feege, N, Fields, DE, Finger, M, Fokin, SL, Frantz, JE, Franz, A, Frawley, AD, Gal, C, Gallus, P, Garg, P, Ge, H, Giordano, F, Glenn, A, Goto, Y, Grau, N, Greene, SV, Perdekamp, M Grosse, Gunji, T, Hachiya, T, Haggerty, JS, Hahn, KI, Hamagaki, H, Hamilton, HF, Han, SY, Hanks, J, Hasegawa, S, Haseler, TOS, Hashimoto, K, He, X, Hemmick, TK, Hill, JC, Hill, K, Hodges, A, Hollis, RS, Homma, K, Hong, B, Hoshino, T, Hotvedt, N, and Huang, J

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, nucl-ex, hep-ex, Nuclear and plasma physics
Abstract

We present measurements of elliptic and triangular azimuthal anisotropy of charged particles detected at forward rapidity 1

Published
2019

5. Production of π0 and η mesons in Cu+Au collisions at sNN =200 GeV

Author

Aidala, C, Ajitanand, NN, Akiba, Y, Akimoto, R, Alexander, J, Alfred, M, Aoki, K, Apadula, N, Asano, H, Atomssa, ET, Awes, TC, Azmoun, B, Babintsev, V, Bagoly, A, Bai, M, Bai, X, Bannier, B, Barish, KN, Bathe, S, Baublis, V, Baumann, C, Baumgart, S, Bazilevsky, A, Beaumier, M, Belmont, R, Berdnikov, A, Berdnikov, Y, Black, D, Blau, DS, Boer, M, Bok, JS, Boyle, K, Brooks, ML, Bryslawskyj, J, Buesching, H, Bumazhnov, V, Butsyk, S, Campbell, S, Canoa Roman, V, Chen, CH, Chi, CY, Chiu, M, Choi, IJ, Choi, JB, Choi, S, Christiansen, P, Chujo, T, Cianciolo, V, Cole, BA, Connors, M, Cronin, N, Crossette, N, Csanád, M, Csörgo, T, Danley, TW, Datta, A, Daugherity, MS, David, G, Deblasio, K, Dehmelt, K, Denisov, A, Deshpande, A, Desmond, EJ, Ding, L, Do, JH, D'Orazio, L, Drapier, O, Drees, A, Drees, KA, Durham, JM, Durum, A, Engelmore, T, Enokizono, A, Esumi, S, Eyser, KO, Fadem, B, Fan, W, Feege, N, Fields, DE, Finger, M, Fleuret, F, Fokin, SL, Frantz, JE, Franz, A, Frawley, AD, Fukao, Y, Fusayasu, T, Gainey, K, Gal, C, Gallus, P, Garg, P, Garishvili, A, Garishvili, I, Ge, H, Giordano, F, Glenn, A, Gong, X, Gonin, M, and Goto, Y

Subjects
hep-ex
Abstract

Production of π0 and η mesons has been measured at midrapidity in Cu+Au collisions at sNN=200GeV. Measurements were performed in π0(η)→γγ decay channel in the 1(2)-20GeV/c transverse momentum range. A strong suppression is observed for π0 and η meson production at high transverse momentum in central Cu+Au collisions relative to the p+p results scaled by the number of nucleon-nucleon collisions. In central collisions the suppression is similar to Au+Au with comparable nuclear overlap. The η/π0 ratio measured as a function of transverse momentum is consistent with mT-scaling parametrization down to pT=2GeV/c, its asymptotic value is constant and consistent with Au+Au and p+p and does not show any significant dependence on collision centrality. Similar results were obtained in hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions as well as in e+e- collisions in a range of collision energies sNN=3-1800 GeV. This suggests that the quark-gluon-plasma medium produced in Cu+Cu collisions either does not affect the jet fragmentation into light mesons or it affects the π0 and η the same way.

Published
2018

6. Production of π0 and η mesons in Cu+Au collisions at sNN=200GeV

Author

Aidala, C, Ajitanand, NN, Akiba, Y, Akimoto, R, Alexander, J, Alfred, M, Aoki, K, Apadula, N, Asano, H, Atomssa, ET, Awes, TC, Azmoun, B, Babintsev, V, Bagoly, A, Bai, M, Bai, X, Bannier, B, Barish, KN, Bathe, S, Baublis, V, Baumann, C, Baumgart, S, Bazilevsky, A, Beaumier, M, Belmont, R, Berdnikov, A, Berdnikov, Y, Black, D, Blau, DS, Boer, M, Bok, JS, Boyle, K, Brooks, ML, Bryslawskyj, J, Buesching, H, Bumazhnov, V, Butsyk, S, Campbell, S, Roman, V Canoa, Chen, C-H, Y., C, Chiu, M, Choi, IJ, Choi, JB, Choi, S, Christiansen, P, Chujo, T, Cianciolo, V, Cole, BA, Connors, M, Cronin, N, Crossette, N, Csanád, M, Csörgő, T, Danley, TW, Datta, A, Daugherity, MS, David, G, DeBlasio, K, Dehmelt, K, Denisov, A, Deshpande, A, Desmond, EJ, Ding, L, H., J, D'Orazio, L, Drapier, O, Drees, A, Drees, KA, Durham, JM, Durum, A, Engelmore, T, Enokizono, A, Esumi, S, Eyser, KO, Fadem, B, Fan, W, Feege, N, Fields, DE, Finger, M, Fleuret, F, Fokin, SL, Frantz, JE, Franz, A, Frawley, AD, Fukao, Y, Fusayasu, T, Gainey, K, Gal, C, Gallus, P, Garg, P, Garishvili, A, Garishvili, I, Ge, H, Giordano, F, Glenn, A, Gong, X, Gonin, M, and Goto, Y

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, hep-ex, Nuclear and plasma physics
Abstract

Production of π0 and η mesons has been measured at midrapidity in Cu+Au collisions at sNN=200GeV. Measurements were performed in π0(η)→γγ decay channel in the 1(2)-20GeV/c transverse momentum range. A strong suppression is observed for π0 and η meson production at high transverse momentum in central Cu+Au collisions relative to the p+p results scaled by the number of nucleon-nucleon collisions. In central collisions the suppression is similar to Au+Au with comparable nuclear overlap. The η/π0 ratio measured as a function of transverse momentum is consistent with mT-scaling parametrization down to pT=2GeV/c, its asymptotic value is constant and consistent with Au+Au and p+p and does not show any significant dependence on collision centrality. Similar results were obtained in hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions as well as in e+e- collisions in a range of collision energies sNN=3-1800 GeV. This suggests that the quark-gluon-plasma medium produced in Cu+Cu collisions either does not affect the jet fragmentation into light mesons or it affects the π0 and η the same way.

Published
2018

7. Dielectron production in Au + Au collisions at sNN =200 GeV

Author

Adare, A, Aidala, C, Ajitanand, NN, Akiba, Y, Akimoto, R, Alexander, J, Alfred, M, Al-Ta'Ani, H, Angerami, A, Aoki, K, Apadula, N, Aramaki, Y, Asano, H, Aschenauer, EC, Atomssa, ET, Averbeck, R, Awes, TC, Azmoun, B, Babintsev, V, Bai, M, Bandara, NS, Bannier, B, Barish, KN, Bassalleck, B, Bathe, S, Baublis, V, Baumgart, S, Bazilevsky, A, Beaumier, M, Beckman, S, Belmont, R, Berdnikov, A, Berdnikov, Y, Blau, DS, Bok, JS, Boyle, K, Brooks, ML, Bryslawskyj, J, Buesching, H, Bumazhnov, V, Butsyk, S, Campbell, S, Castera, P, Chen, CH, Chi, CY, Chiu, M, Choi, IJ, Choi, JB, Choi, S, Choudhury, RK, Christiansen, P, Chujo, T, Chvala, O, Cianciolo, V, Citron, Z, Cole, BA, Connors, M, Csanád, M, Csörgo, T, Dairaku, S, Danley, TW, Datta, A, Daugherity, MS, David, G, Deblasio, K, Dehmelt, K, Denisov, A, Deshpande, A, Desmond, EJ, Dharmawardane, KV, Dietzsch, O, Ding, L, Dion, A, Diss, PB, Do, JH, Donadelli, M, D'Orazio, L, Drapier, O, Drees, A, Drees, KA, Durham, JM, Durum, A, Edwards, S, Efremenko, YV, Engelmore, T, Enokizono, A, Esumi, S, Eyser, KO, Fadem, B, Feege, N, Fields, DE, Finger, M, Fleuret, F, Fokin, SL, Frantz, JE, Franz, A, Frawley, AD, Fukao, Y, and Fusayasu, T

Subjects
nucl-ex
Abstract

We present measurements of e+e- production at midrapidity in Au+Au collisions at sNN=200 GeV. The invariant yield is studied within the PHENIX detector acceptance over a wide range of mass (mee

Published
2016

8. Dielectron production in Au + Au collisions at sNN=200 GeV

Author

Adare, A, Aidala, C, Ajitanand, NN, Akiba, Y, Akimoto, R, Alexander, J, Alfred, M, Al-Ta'ani, H, Angerami, A, Aoki, K, Apadula, N, Aramaki, Y, Asano, H, Aschenauer, EC, Atomssa, ET, Averbeck, R, Awes, TC, Azmoun, B, Babintsev, V, Bai, M, Bandara, NS, Bannier, B, Barish, KN, Bassalleck, B, Bathe, S, Baublis, V, Baumgart, S, Bazilevsky, A, Beaumier, M, Beckman, S, Belmont, R, Berdnikov, A, Berdnikov, Y, Blau, DS, Bok, JS, Boyle, K, Brooks, ML, Bryslawskyj, J, Buesching, H, Bumazhnov, V, Butsyk, S, Campbell, S, Castera, P, Chen, C-H, Y., C, Chiu, M, Choi, IJ, Choi, JB, Choi, S, Choudhury, RK, Christiansen, P, Chujo, T, Chvala, O, Cianciolo, V, Citron, Z, Cole, BA, Connors, M, Csanád, M, Csörgő, T, Dairaku, S, Danley, TW, Datta, A, Daugherity, MS, David, G, DeBlasio, K, Dehmelt, K, Denisov, A, Deshpande, A, Desmond, EJ, Dharmawardane, KV, Dietzsch, O, Ding, L, Dion, A, Diss, PB, H., J, Donadelli, M, D'Orazio, L, Drapier, O, Drees, A, Drees, KA, Durham, JM, Durum, A, Edwards, S, Efremenko, YV, Engelmore, T, Enokizono, A, Esumi, S, Eyser, KO, Fadem, B, Feege, N, Fields, DE, Finger, M, Fleuret, F, Fokin, SL, Frantz, JE, Franz, A, Frawley, AD, Fukao, Y, and Fusayasu, T

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, nucl-ex, Nuclear and plasma physics
Abstract

We present measurements of e+e- production at midrapidity in Au+Au collisions at sNN=200 GeV. The invariant yield is studied within the PHENIX detector acceptance over a wide range of mass (mee

Published
2016

9. Cross section for bb¯ production via dielectrons in d + Au collisions at sNN=200 GeV

Author

Adare, A, Aidala, C, Ajitanand, NN, Akiba, Y, Al-Bataineh, H, Alexander, J, Angerami, A, Aoki, K, Apadula, N, Aramaki, Y, Atomssa, ET, Averbeck, R, Awes, TC, Azmoun, B, Babintsev, V, Bai, M, Baksay, G, Baksay, L, Barish, KN, Bassalleck, B, Basye, AT, Bathe, S, Baublis, V, Baumann, C, Bazilevsky, A, Belikov, S, Belmont, R, Bennett, R, Bhom, JH, Blau, DS, Bok, JS, Boyle, K, Brooks, ML, Buesching, H, Bumazhnov, V, Bunce, G, Butsyk, S, Campbell, S, Caringi, A, Chen, C-H, Y., C, Chiu, M, Choi, IJ, Choi, JB, Choudhury, RK, Christiansen, P, Chujo, T, Chung, P, Chvala, O, Cianciolo, V, Citron, Z, Cole, BA, del Valle, Z Conesa, Connors, M, Csanád, M, Csörgő, T, Dahms, T, Dairaku, S, Danchev, I, Das, K, Datta, A, David, G, Dayananda, MK, Denisov, A, Deshpande, A, Desmond, EJ, Dharmawardane, KV, Dietzsch, O, Dion, A, Donadelli, M, Drapier, O, Drees, A, Drees, KA, Durham, JM, Durum, A, Dutta, D, D'Orazio, L, Edwards, S, Efremenko, YV, Ellinghaus, F, Engelmore, T, Enokizono, A, En'yo, H, Esumi, S, Fadem, B, Fields, DE, Finger, M, Fleuret, F, Fokin, SL, Fraenkel, Z, Frantz, JE, Franz, A, Frawley, AD, Fujiwara, K, Fukao, Y, Fusayasu, T, Garishvili, I, Glenn, A, and Gong, H

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, nucl-ex, Nuclear and plasma physics
Abstract

We report a measurement of e+e- pairs from semileptonic heavy-flavor decays in d+Au collisions at sNN=200 GeV. By exploring the mass and transverse-momentum dependence of the yield, the bottom decay contribution can be isolated from charm, and quantified by comparison to pythia and mc@nlo simulations. The resulting bb¯-production cross section is σbb¯dAu=1.37±0.28(stat)±0.46(syst) mb, which is equivalent to a nucleon-nucleon cross section of σbbNN=3.4±0.8(stat)±1.1(syst)μb.

Published
2015

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