Coherent photon-hadron interactions in pA collisions: Small-x physics after HERA

V. P. Gonçalves and M. V. T. Machado
Phys. Rev. C 73, 044902 – Published 14 April 2006

Abstract

In this paper we study the photoproduction of heavy quarks and vector mesons in the coherent proton-nucleus (pA) interactions for RHIC and LHC energies and analyze if these processes can be used to determine the QCD dynamics at high energies. The integrated cross section and rapidity distribution are estimated using the color glass condensate (CGC) formalism. A comparison with the linear dynamics predictions is also presented. Our results indicate that the nonlinear dynamics can be proven in those reactions, which are well suited for studing saturation effects.

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  • Received 14 November 2005

DOI:https://doi.org/10.1103/PhysRevC.73.044902

©2006 American Physical Society

Authors & Affiliations

V. P. Gonçalves1 and M. V. T. Machado2,3

  • 1Instituto de Física e Matemática, Universidade Federal de Pelotas Caixa Postal 354, CEP 96010-090, Pelotas, RS, Brazil
  • 2Universidade Estadual do Rio Grande do Sul (UERGS), Unidade de Bento Gonçalves Rua Benjamin Constant, 229. Bento Gonçalves, CEP 95700-000, Brazil
  • 3High Energy Physics Phenomenology Group, GFPAE IF-UFRGS Caixa Postal 15051, CEP 91501-970, Porto Alegre, RS, Brazil

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Issue

Vol. 73, Iss. 4 — April 2006

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