Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions at sNN =200 GeV

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Title:	Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions at sNN =200 GeV
Authors:	彭仁傑;Aidala, C.;Alexander, J.;Azmoun, B.;Bai, M.;Baksay, L.;Baublis, V.;Baumann, C.;Choudhury, R. K.;Chvala, O.;Cole, B. A.;Datta, A.;Dietzsch, O.;Dion, A.;Donadelli, M.;Drapier, O.;Efremenko, Y. V.;Fleuret, F.;Franz, A.;Frawley, A. D.;Fujiwara, K.;Garishvili, I.;Goto, Y.;Grosse Perdekamp, M.;Gustafsson, H. -Å.;Hamagaki, H.;Heffner, M.;Holzmann, W.;Hong, B.;Ichihara, T.;Ide, J.;Isobe, T.;Isupov, A.;Johnson, B. M.;Kajihara, F.;Karatsu, K.;Khanzadeev, A.;Kim, B. I.;Kim, S. H.;Kim, Y. -J.;Kinney, E.;Kiriluk, K.;Kotchetkov, D.;Kurosawa, M.;Lenzi, B.;Linden Levy, L. A.;Liu, M. X.;Mao, Y.;Matathias, F.;McCumber, M.;Mikeš, P.;Mitchell, J. T.;Morrison, D. P.;Murata, J.;Nagle, J. L.;Nagy, M. I.;Nakano, K.;Newby, J.;Okada, K.;Papavassiliou, V.;Park, J.;Park, W. J.;Pate, S. F.;Pinkenburg, C.;Qu, H.;Rak, J.;Richardson, E.;Rolnick, S. D.;Rosati, M.;Rosen, C. A.;Rosnet, P.;Sahlmueller, B.;Seidl, R.;Shigaki, K.;Shukla, P.;Silva, C. L.;Silvestre, C.;Sugitate, T.;Sziklai, J.;Takagui, E. M.;Taketani, A.;Tanaka, Y.;Tanida, K.;Themann, H.;Togawa, M.;Torii, H.;Towell, R. S.;van Hecke, H. W.;Vazquez-Zambrano, E.;Veicht, A.;Watanabe, Y.;White, S. N.;Winter, D.;Wright, R. M.;Xie, W.;Yanovich, A.;Ying, J.;Yokkaichi, S.;Young, G. R.;Yushmanov, I. E.;Zajc, W. A.
Contributors:	高能與強場物理研究中心
Keywords:	Fysik;Natural Sciences;Naturvetenskap;Physical Sciences;Relativistic Heavy Ion Collider;Subatomic Physics;Subatom�r fysik
Date:	2016-05-31
Issue Date:	2026-04-23 12:04:21 (UTC+8)
Publisher:	American Physical Society;United States: APS
Abstract:	摘要： In this paper, measurements of the anisotropic flow coefficients v2{Ψ2}, v3{Ψ3}, v4{Ψ4}, and v4{Ψ2} for identified particles (π±, K±, and p + ¯p) at midrapidity, obtained relative to the event planes Ψm at forward rapidities in Au + Au collisions at sNN=200 GeV , are presented as a function of collision centrality and particle transverse momenta pT. The vn coefficients show characteristic patterns consistent with hydrodynamical expansion of the matter produced in the collisions. For each harmonic n, a modified valence quark-number Nq scaling [plotting vn{Ψm}/(Nq)n/2 versus transverse kinetic energies (KET)/Nq] is observed to yield a single curve for all the measured particle species for a broad range of KET . A simultaneous blast-wave model fit to the observed vn{Ψm}(pT) coefficients and published particle spectra identifies radial flow anisotropies ρn{Ψm} and spatial eccentricities sn{Ψm} at freeze-out. Finally, these are generally smaller than the initial-state participant-plane geometric eccentricities εn {ΨPPm} as also observed in the final eccentricity from quantum interferometry measurements with respect to the event plane. 出版者： United States: APS 出版日期： 2016-05-31 出處： Physical Review C: covering nuclear physics, 2016-05, Vol.93 (5) 識別號： ISSN: 2469-9985 識別號： ISSN: 1089-490X 識別號： DOI: 10.1103/PhysRevC.93.051902
Appears in Collections:	[Center for High Energy and High Field Physics (CHiP)] journal & Dissertation

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