Saturation of azimuthal anisotropy in Au + Au collisions at sqrt(s_NN) = 62 - 200 GeV

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dc.creatorPHENIX Collaboration
dc.creatorAdler, S. S.
dc.date2004-11-19
dc.date.accessioned2026-07-07T11:59:53Z
dc.date.available2026-07-07T11:59:53Z
dc.descriptionNew measurements are presented for charged hadron azimuthal correlations at mid-rapidity in Au+Au collisions at sqrt(s_NN) = 62.4 and 200 GeV. They are compared to earlier measurements obtained at sqrt(s_NN) = 130 GeV and in Pb+Pb collisions at sqrt(s_NN) = 17.2 GeV. Sizeable anisotropies are observed with centrality and transverse momentum (p_T) dependence characteristic of elliptic flow (v_2). For a broad range of centralities, the observed magnitudes and trends of the differential anisotropy, v_2(p_T), change very little over the collision energy range sqrt(s_NN) = 62-200 GeV, indicating saturation of the excitation function for v_2 at these energies. Such a saturation may be indicative of the dominance of a very soft equation of state for sqrt(s_NN) = 62-200 GeV.
dc.description432 authors, 7 pages text, 4 figures, REVTeX4. To be submitted to Physical Review Letters. 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
dc.identifierhttps://arxiv.org/abs/nucl-ex/0411040
dc.identifierhttp://arxiv.org/abs/nucl-ex/0411040
dc.identifierPhys.Rev.Lett.94:232302,2005
dc.identifierdoi:10.1103/PhysRevLett.94.232302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206723
dc.subjectNuclear Experiment
dc.titleSaturation of azimuthal anisotropy in Au + Au collisions at sqrt(s_NN) = 62 - 200 GeV
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