Shadowing Effects on the Nuclear Suppression Factor, R_dAu, in d+Au Interactions

Details Shadowing Effects on the Nuclear Suppression Factor, R_dAu, in d+Au Interactions Shadowing Effects on the Nuclear Suppression Factor, R_dAu, in d+Au Interactions

2004-05-07

arxiv.org/abs/hep-ph/0405060v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 3 figures, final version, Phys. Rev. C in press

Scientific paper

10.1103/PhysRevC.70.064902

We explore how nuclear modifications to the nucleon parton distributions affect production of high transverse momentum hadrons in deuteron-nucleus collisions. We calculate the charged hadron spectra to leading order using standard fragmentation functions and shadowing parameterizations. We obtain the d+Au to pp ratio both in minimum bias collisions and as a function of centrality. The minimum bias results agree reasonably well with the BRAHMS data while the calculated centrality dependence underestimates the data and is a stronger function of p_T than the data indicate.

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