Azimuthal anisotropy of direct photons

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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.
Equations (23), (26) and the figures are corrected, references added. The version to appear in Phys. Rev. D

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High Energy Physics - Phenomenology, Nuclear Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/204844

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0711.3010
 http://arxiv.org/abs/0711.3010
 Phys.Rev.D77:034011,2008
 doi:10.1103/PhysRevD.77.034011

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arXiv