Probing the QCD phase boundary with elliptic flow in relativistic heavy ion collisions at STAR |
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| Authors: | Shusu Shi |
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| Affiliation: | 1. Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, 430079, China
2. Ministry of Education, The Key Laboratory of Quark and Lepton Physics (Central China Normal University), Wuhan, Hubei, 430079, China
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| Abstract: | We present measurement of elliptic flow, v 2, for charged and identified particles at midrapidity in Au+Au collisions at $sqrt {s_{NN} } $ = 7.7?C39 GeV. We compare the inclusive charged hadron v 2 to those from transport model calculations, such as the UrQMD model, AMPT default model and AMPT string-melting model. We discuss the energy dependence of the difference in v 2 between particles and anti-particles. The v 2 of ? meson is observed to be systematically lower than other particles in Au+Au collisions at $sqrt {s_{NN} } $ = 11.5 GeV. |
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