Photon production from an anisotropic quark-gluon plasma

Abstract

We calculate photon production from a quark-gluon plasma which is anisotropic in momentum space including the Compton scattering and quark/anti-quark annihilation processes. We show that for a quark-gluon plasma which has an oblate momentum-space anisotropy the photon production rate has an angular dependence which is peaked transverse to the beam line. We propose to use the angular dependence of high-energy medium photon production to experimentally determine the degree of momentum-space isotropy of a quark-gluon plasma produced in relativistic heavy-ion collisions.

4 pages, 2 figures, 1 table

Cited by in corpus (5)

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• Photon polarization as a probe for quark-gluon plasma dynamics
• Measuring the isotropization time of quark-gluon plasma from direct photons at energies available at the BNL Relativistic Heavy Ion Collider (RHIC)
• Collective Phenomena in the Non-Equilibrium Quark-Gluon Plasma