Eur. Phys. J. C 29, 37-44 (2003)
DOI: 10.1140/epjc/s2003-01214

The QCD pomeron in ultraperipheral heavy ion collisions: II. Heavy quark production

V.P. Gonçalves¹ and M.V.T. Machado<sup>1, 2

1</sup>  Instituto de Física e Matemática, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-090, Pelotas, RS, Brazil
²  High Energy Physics Phenomenology Group, IF-UFRGS, Caixa Postal 15051, CEP 91501-970, Porto Alegre, RS, Brazil

(Received: 30 January 2003 / Revised version: 26 March 2003 / Published online: 13 May 2003)

Abstract
The heavy quark production in ultraperipheral heavy ion collisions is investigated, with particular emphasis on the results from the coherent interactions given by the two-photon process. One addresses the heavy quark total cross sections at photon level considering the saturation model and the BFKL dynamics in the color dipole picture. The corresponding cross sections at nuclear level are presented. It is verified that the QCD dynamics implies an enhancement of the cross section in comparison with previous calculations.

© Società Italiana di Fisica, Springer-Verlag 2003