Azimuthal anisotropy of direct photons

B. Z. Kopeliovich, H. J. Pirner, A. H. Rezaeian, and Iván Schmidt
Phys. Rev. D 77, 034011 – Published 15 February 2008

Abstract

The electromagnetic bremsstrahlung produced by a quark interacting with nucleons or nuclei is azimuthally asymmetric. In the light-cone dipole approach this effect is related to the orientation dependent dipole cross section. Such a radiation anisotropy is expected to contribute to the azimuthal asymmetry of direct photons in pA and AA collisions, as well as in deep-inelastic scattering and in the production of dileptons.

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  • Received 20 November 2007

DOI:https://doi.org/10.1103/PhysRevD.77.034011

©2008 American Physical Society

Authors & Affiliations

B. Z. Kopeliovich1,2, H. J. Pirner3, A. H. Rezaeian1, and Iván Schmidt1

  • 1Departamento de Física y Centro de Estudios Subatómicos, Universidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, Chile
  • 2Joint Institute for Nuclear Research, Dubna, Russia
  • 3Institute for Theoretical Physics, University of Heidelberg, Philosophenweg 19, D-69120 Heidelberg, Germany

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Issue

Vol. 77, Iss. 3 — 1 February 2008

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