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Advances in High Energy Physics
Volume 2013 (2013), Article ID 908046, 7 pages
http://dx.doi.org/10.1155/2013/908046
Research Article

Transverse Momentum, Centrality, and Participant Nucleon Number Dependence of Elliptic Flow

1Department of Physics, Shanxi University, Taiyuan, Shanxi 030006, China
2Department of Mathematics, Business College of Shanxi University, Taiyuan, Shanxi 030031, China

Received 25 July 2012; Revised 9 November 2012; Accepted 12 November 2012

Academic Editor: John W. Norbury

Copyright © 2013 Bao-Chun Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In the combined framework of a multisource and participant-spectator model, we study the elliptic flow as a function of transverse momentum and number of participating nucleons in  GeV Au-Au and  TeV Pb-Pb collisions and argue that the geometry of the initial overlap region in the collisions determines the experimentally measured azimuthal asymmetries. Our results are approximately in agreement with the data from PHENIX and ALICE collaborations.