Probe the QCD phase boundary with elliptic flow in relativistic heavy ion collisions at STAR

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 - 39 GeV. We compare the inclusive charged hadron $v_2$ to those from transport model calculations, such as 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 $\varphi$ meson is observed to be systematically lower than other particles in Au+Au collisions at $\sqrt{s_{NN}}$ = 11.5 GeV.

5 pages, 3 figures, the proceedings of the 7th International Workshop on Critical Point and Onset of Deconfinement (CPOD2011)

References in corpus (3)

• Partonic flow and $\varphi$-meson production in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Constituent quark scaling violation due to baryon number transport
• Collective phenomena in non-central nuclear collisions

Cited by in corpus (2)

• Elliptic flow of charged pions, protons and strange particles emitted in Pb+Au collisions at top SPS energy
• Highlights of the Beam Energy Scan from STAR