Azimuthal anisotropy of π 0 and η mesons in Au + Au collisions at s NN = 200 GeV

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Title:	Azimuthal anisotropy of π 0 and η mesons in Au + Au collisions at s NN = 200 GeV
Authors:	彭仁傑;Al-Bataineh, H.;Aoki, K.;Baksay, L.;Basye, A. T.;Bathe, S.;Bazilevsky, A.;Belmont, R.;Berdnikov, Y.;Bok, J. S.;Brooks, M. L.;Camacho, C. M.;Chi, C. Y.;Choi, I. J.;Chung, P.;Danchev, I.;Datta, A.;Durum, A.;Edwards, S.;Ellinghaus, F.;Engelmore, T.;En&apos, H.;yo;Fadem, B.;Finger, M.;Fleuret, F.;Franz, A.;Frawley, A. D.;Gong, H.;Cassagnac, R. Granier de;Grau, N.;Greene, S. V.;Perdekamp, M. Grosse;Haggerty, J. S.;Haslum, E.;Hemmick, T. K.;Hester, T.;Hill, J. C.;Homma, K.;Ichimiya, R.;Inaba, M.;Ishihara, M.;Issah, M.;Ivanischev, D.;Karatsu, K.;Kazantsev, A. V.;Kim, B. I.;Kistenev, E.;Konno, M.;Kwon, Y.;Lee, K.;Liebing, P.;Litvinenko, A.;Lynch, D.;Makdisi, Y. I.;Masui, H.;Nagle, J. L.;Naglis, M.;Nagy, M. I.;Nyanin, A. S.;O&apos, E.;Brien;Oda, S. X.;Onuki, Y.;Pantuev, V.;Papavassiliou, V.;Park, S. K.;Park, W. J.;Peng, J.-C.;Peressounko, D. Yu.;Pinkenburg, C.;Ravinovich, I.;Rolnick, S. D.;Rosati, M.;Rosendahl, S. S. E.;Saito, N.;Sano, S.;Seidl, R.;Semenov, A. Yu.;Seto, R.;Shibata, T.-A.;Shimomura, M.;Shoji, K.;Stankus, P. W.;Stoll, S. P.;Sugitate, T.;Sukhanov, A.;Tarafdar, S.;Thomas, T. L.;Towell, R. S.;Tsuchimoto, Y.;Vale, C.;Velkovska, J.;Vértesi, R.;Watanabe, Y.;Wessels, J.;White, S. N.;Winter, D.;Wood, J. P.;Wysocki, M.;Xie, W.;You, Z.;Zhou, S.
Contributors:	高能與強場物理研究中心
Keywords:	[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex];FOS: Physical sciences;Nuclear Experiment;Nuclear Experiment (nucl-ex)
Date:	2013-12-20
Issue Date:	2026-04-23 11:59:28 (UTC+8)
Publisher:	American Physical Society;American Physical Society (APS)
Abstract:	摘要： The azimuthal anisotropy coefficients v_2 and v_4 of pi^0 and eta mesons are measured in Au+Au collisions at sqrt(s_NN)=200 GeV, as a function of transverse momentum p_T (1-14 GeV/c) and centrality. The extracted v_2 coefficients are found to be consistent between the two meson species over the measured p_T range. The ratio of v_4/v_2^2 for pi^0 mesons is found to be independent of p_T for 1-9 GeV/c, implying a lack of sensitivity of the ratio to the change of underlying physics with p_T. Furthermore, the ratio of v_4/v_2^2 is systematically larger in central collisions, which may reflect the combined effects of fluctuations in the initial collision geometry and finite viscosity in the evolving medium. 384 authors, 71 institutions, 11 pages, 9 figures, and 2 tables. Submitted to Physical Review C. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html 出版者： American Physical Society (APS) 出版日期： 2013-12-20 出處： Physical Review C, 2013-12, Vol.88 (6) 識別號： ISSN: 0556-2813 識別號： DOI: 10.1103/physrevc.88.064910 識別號： DOI: 10.48550/arxiv.1309.4437
Appears in Collections:	[Center for High Energy and High Field Physics (CHiP)] journal & Dissertation

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