Systematic studies of the centrality and sNN dependence of the dET/dη and dNch/dη in heavy ion collisions at midrapidity

S. S. Adler et al. (PHENIX Collaboration)
Phys. Rev. C 71, 034908 – Published 25 March 2005

Abstract

The PHENIX experiment at the relativistic heavy ion collider (RHIC) has measured transverse energy and charged particle multiplicity at midrapidity in Au+Au collisions at center-of-mass energies sNN=19.6,130, and 200GeV as a function of centrality. The presented results are compared to measurements from other RHIC experiments and experiments at lower energies. The sNN dependence of dET/dη and dNch/dη per pair of participants is consistent with logarithmic scaling for the most central events. The centrality dependence of dET/dη and dNch/dη is similar at all measured incident energies. At RHIC energies, the ratio of transverse energy per charged particle was found to be independent of centrality and growing slowly with sNN. A survey of comparisons between the data and available theoretical models is also presented.

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  • Received 20 September 2004
  • Corrected 6 April 2005

DOI:https://doi.org/10.1103/PhysRevC.71.034908

©2005 American Physical Society

Corrections

6 April 2005

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Vol. 71, Iss. 3 — March 2005

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