Sonic Mach Cones Induced by Fast Partons in a Perturbative Quark-Gluon Plasma

Details Sonic Mach Cones Induced by Fast Partons in a Perturbative Quark-Gluon Plasma Sonic Mach Cones Induced by Fast Partons in a Perturbative Quark-Gluon Plasma

Publishing date

2008-02-15

URL

arxiv.org/abs/0802.2254v4

Journals

Phys.Rev.C78:041901,2008

Science

Physics

Field

High Energy Physics

SubField

High Energy Physics - Phenomenology

Additional info

Final version accepted for publication

Type

Scientific paper

Digital Object Identifier

10.1103/PhysRevC.78.041901

Abstract

We derive the space-time distribution of energy and momentum deposited by a fast parton traversing a weakly coupled quark-gluon plasma by treating the fast part on as the source of an external color field perturbing the medium. We then use our result as a source term for the linearized hydrodynamical equations of the medium. We show that the solution contains a sonic Mach cone and a dissipative wake if the parton moves at a supersonic speed.

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