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Regular PapersNo Access

THE ENERGY AND CENTRALITY DEPENDENCES OF THE PSEUDORAPIDITY DISTRIBUTIONS OF THE CHARGED PARTICLES IN Au+Au COLLISIONS

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

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

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

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https://doi.org/10.1142/S0218301312500024Cited by:9 (Source: Crossref)

Abstract

We present the pseudorapidity distributions of the charged particles in nucleus–nucleus collisions as the function of beam energy and impact parameter through weighted superposition of the pseudorapidity distributions in the effective binary nucleon–nucleon collisions. We then analyze with the theoretical model the experimental measurements carried out by BNL-RHIC-PHOBOS Collaboration in Au+Au collisions at , 130, 62.4 and 19.6 GeV. The model has only two free parameters and the theoretical results favor the experimental measurements well.

Keywords:

PACS: 25.75.q, 24.10.Cn, 24.10.Jv

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Vol. 21, No. 01

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History

Received 14 September 2011

Revised 29 October 2011

Accepted 21 November 2011

Published: 3 February 2012

Keywords