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Advances in High Energy Physics
Volume 2014, Article ID 248360, 10 pages
Research Article

The Evolution-Dominated Hydrodynamic Model and the Pseudorapidity Distributions in High Energy Physics

College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China

Received 22 January 2014; Accepted 2 March 2014; Published 3 April 2014

Academic Editor: Fu-Hu Liu

Copyright © 2014 Z. J. Jiang 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. The publication of this article was funded by SCOAP3.


By taking into account the effects of leading particles, we discuss the pseudorapidity distributions of the charged particles produced in high energy heavy ion collisions in the context of evolution-dominated hydrodynamic model. The leading particles are supposed to have a Gaussian rapidity distribution normalized to the number of participants. A comparison is made between the theoretical results and the experimental measurements performed by BRAHMS and PHOBOS Collaboration at BNL-RHIC in Au-Au and Cu-Cu collisions at  GeV and by ALICE Collaboration at CERN-LHC in Pb-Pb collisions at  TeV.