THE 14TH NATIONAL CONFERENCE ON NUCLEAR PHYSICS MEDIUM AND HIGH ENERGY PHYSICS AND HADRON PHYSICS

The Elliptic Flow of Multi-Strange Hadrons in √SNN = 200 GeV Au + Au Collisions at STAR

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, , Citation Zhang Xiaoping 2012 Plasma Sci. Technol. 14 449 DOI 10.1088/1009-0630/14/6/02

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Author affiliations

1 Department of Engineering Physics, Tsinghua University, Beijing 100084, China

2 Key Laboratory of Particle & Radiation Imaging (Tsinghua University), Ministry of Education, Beijing 100084, China

3 Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA

Dates

  1. Received 17 May 2011
  2. Accepted 31 July 2011

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1009-0630/14/6/449

Abstract

Azimuthal anisotropy, especially for the multi-strange hadrons, is expected to be sensitive to the dynamical evolution in the early stage of high energy nuclear collisions. In this paper we present the latest results of multi-strange hadron elliptic flow in Au + Au collisions at √SNN = 200 GeV from the STAR experiment at RHIC. The number-of-quark scaling is evidenced with ϕ(sbar s) and Ω(sss) with highly statistical data, which shows strange quark collectivity at RHIC. The ν2 of ϕ meson is found to be consistent with that of proton within statistical error bars at pT < 1 GeV/c.

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