Shadowing effects on the nuclear suppression factor, R (dAu) , in d+Au interactions

Dec, 2004

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Abstract: (APS)
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 parametrizations. 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 pT than the data indicate.
  • 13.85.Ni
  • 25.75.-q