Phenomenological Evidence for Gluon Depletion in pA Collisions

Details Phenomenological Evidence for Gluon Depletion in pA Collisions Phenomenological Evidence for Gluon Depletion in pA Collisions

2000-07-05

arxiv.org/abs/nucl-th/0007007v2

Phys.Rev.Lett. 85 (2000) 4008-4011

Physics

Nuclear Physics

Nuclear Theory

4 pages (RevTex) + 3 figures (eps)

Scientific paper

10.1103/PhysRevLett.85.4008

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.

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