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High Energy Physics Seminars

ics High Energy
Monday, January 5, 2004
3:30 PM
Physics Building, Room 204
Note special date.
Mike Strickland [Host: Peter Arnold]
Techische Universitat , Vienna
"Collective Modes of an Anisotropic QGP"
In this talk I will discuss the collective modes of a quark-gluon plasma which has a momentum-space anisotropy in the quark and/or gluon districution functions. I will derive the hard thermal loop gluon self-energies using classical kinetic theory for anistropic systems and show that in addition to the normal stable aluonic quasiparticle modes there exist also unstable gluonic quasiparticle modes which can affect the thermalization and isotropization of a quark-gluon plasma. I will then demonstrate how the anisotropic HTL gluonic self-energy can be used to calculate the directional dependence of the heavy quark energy loss in an anisotropic QGP. Along the way I will also talk a bit about the isotopic limit and demonstrate that the heavy quark energy loss obtained is never negative.

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