Centrality dependence of charged hadron production in deuteron + gold and nucleon + gold collisions at s(NN)**(1/2) = 200-GeV - INSPIRE

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Centrality dependence of charged hadron production in deuteron + gold and nucleon + gold collisions at s(NN)**(1/2) = 200-GeV

PHENIX

Collaboration

Aug, 2007

15 pages

Published in:

Phys.Rev.C 77 (2008) 014905

e-Print:

0708.2416 [nucl-ex]

DOI:

10.1103/PhysRevC.77.014905

Experiments:

BNL-RHIC-PHENIX

View in:

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Abstract: (arXiv)

We present transverse momentum (p_T) spectra of charged hadrons measured in deuteron-gold and nucleon-gold collisions at \sqrts = 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, \nu, suffered by deuteron nucleons. A comparison of charged particle yields to those in p+p collisions show that the yield per nucleon-nucleon collision saturates with \nu for high momentum particles. We also present the charged hadron to neutral pion ratios as a function of p_T.

Note:

330 authors, 15 pages text, 16 figures, 3 tables. Submitted to Phys. Rev. Lett. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

25.75.Dw
deuteron nucleus: colliding beams
gold
nucleon: spectator
nucleon nucleus: interaction
hadron: multiple production
charged particle: multiplicity
transverse momentum: spectrum
impact parameter: dependence
nucleon nucleon: interaction

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Figures(0)

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