Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

1-2006

Journal or Book Title

Physical Review Letters

Volume

96

Issue

1

First Page

012304

DOI

10.1103/PhysRevLett.96.012304

Abstract

J/psi production in d+Au and p+p collisions at root s(NN)=200 GeV has been measured by the PHENIX experiment at rapidities -2.2 < y <+2.4. The cross sections and nuclear dependence of J/psi production versus rapidity, transverse momentum, and centrality are obtained and compared to lower energy p+A results and to theoretical models. The observed nuclear dependence in d+Au collisions is found to be modest, suggesting that the absorption in the final state is weak and the shadowing of the gluon distributions is small and consistent with Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-based parametrizations that fit deep-inelastic scattering and Drell-Yan data at lower energies.

Comments

This article is published as Adler, S. S., S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, A. Al-Jamel, J. Alexander et al. "J/ψ production and nuclear effects for d+ Au and p+ p collisions at s N N= 200 GeV." Physical review letters 96, no. 1 (2006): 012304. DOI:10.1103/PhysRevLett.96.012304. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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