Energy and Centrality Dependences of Pseudorapidity Distributions of Charged Particles in Cu＋Cu Collisions at High Energies
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Graphical Abstract
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Abstract
Using Glauber model， we present the impact parameter dependences of the numbers of participants and binary nucleon-nucleon collisions in nucleus-nucleus collisions. Then， on the basis of this work，after considering the effect of energy loss of participants in their multiple collisions，we get the pseudorapidity distributions of charged-particles as a function of impact parameter in nucleus-nucleus collisions through weighted superposition of the distributions in effective binary nucleon-nucleon collisions. The experimental measurements carried out by RHIC PHOBOS Collaboration in different central Cu+Cu collisions at different energies were analyzed by using this model. The theoretical results are well consistent with the experimental observations
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