Azimuthal anisotropy of direct photons
High Energy Physics - Phenomenology
2008-11-26 v4 Nuclear Theory
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 DIS and in the production of dileptons.
Cite
@article{arxiv.0711.3010,
title = {Azimuthal anisotropy of direct photons},
author = {B. Z. Kopeliovich and H. J. Pirner and A. H. Rezaeian and Ivan Schmidt},
journal= {arXiv preprint arXiv:0711.3010},
year = {2008}
}
Comments
Equations (23), (26) and the figures are corrected, references added. The version to appear in Phys. Rev. D