APS Journals

Authors

Referees

Librarians

Students

APS Members

APS » Journals » Physical Review Letters » Azimuthal anisotropy of direct photons

January 2008, to be published in Physical Review D1

Azimuthal anisotropy of direct photons
B. Z. Kopeliovich, H. J. Pirner, A. H. Rezaeian, and Iv\ ' { a} n Schmidt

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.

© 2008 The American Physical Society.