Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-11-19
Phys.Rev.D77:034011,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
Equations (23), (26) and the figures are corrected, references added. The version to appear in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.77.034011
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.
Kopeliovich Boris Z.
Pirner Hans-Juergen
Rezaeian Amir H.
Schmidt Ivan
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