Phenomenological Evidence for Gluon Depletion in pA Collisions

Abstract

The data of J/psi suppression at large x_F in pA collisions are used to infer the existence of gluon depletion as the projectile proton traverses the nucleus. The modification of the gluon distribution is studied by use of a convolution equation whose non-perturbative splitting function is determined phenomenologically. The depletion factor at x_1=0.8 is found to be about 25% at A=100.

4 pages (RevTex) + 3 figures (eps)

References in corpus (2)

• Colour Deconfinement in Nuclear Collisions
• J/Psi and Psi' total cross sections and formation times from data for charmonium suppression in $pA$ collisions

Cited by in corpus (5)

• Centrality Dependence of Baryon and Meson Momentum Distributions in Proton-Nucleus Collisions
• The effect of gluon depletion on J/psi suppression in pA and AA collisions
• Charmonium suppression in p-A collisions at RHIC
• x_F-dependence of J/Psi suppression in pA collisions
• Comparison of Nuclear Suppression Effects on Meson Production at High p_T and p_L