Eur. Phys. J. C 20, 343-348
DOI: 10.1007/s100520100654

The improved nuclear parton distributions

A.L. Ayala Filho and V.P. Gonçalves

Instituto de Física e Matemática, Universidade Federal de Pelotas, Caixa Postal 354, 96010-090 Pelotas, RS, Brazil

(Received: 18 January 2001 / Revised version: 6 March 2001 / Published online: 3 May 2001 -© Springer-Verlag / Società Italiana di Fisica 2001 )

Abstract
In this paper we propose an improvement of the EKS nuclear parton distributions for the small x region of high energy processes, where the perturbative high parton density effects cannot be disregarded. We analyze the behavior of the ratios xG_A/xG_N and F₂^A/F₂^D and verify that at small x they are strongly modified when compared to the EKS predictions. The implications of our results for heavy ion collisions in RHIC and LHC are discussed.

© Società Italiana di Fisica, Springer-Verlag 2001