Centrality dependence of charged hadron production in deuteron+gold and nucleon+gold collisions at sNN=200 GeV

S. S. Adler et al. (PHENIX Collaboration)
Phys. Rev. C 77, 014905 – Published 24 January 2008

Abstract

We present transverse momentum (pT) spectra of charged hadrons measured in deuteron-gold and nucleon-gold collisions at sNN=200 GeV for four centrality classes. Nucleon-gold collisions were selected by tagging events in which a spectator nucleon was observed in one of two forward rapidity detectors. The spectra and yields were investigated as a function of the number of binary nucleon-nucleon collisions, ν, suffered by deuteron nucleons. A comparison of charged particle yields to those in p+p collisions show that yield per nucleon-nucleon collision saturates with ν for high momentum particles. We also present the charged hadron to neutral pion ratios as a function of pT.

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  • Received 17 August 2007

DOI:https://doi.org/10.1103/PhysRevC.77.014905

©2008 American Physical Society

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Vol. 77, Iss. 1 — January 2008

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