Shock waves from heavy-quark mesons in AdS/CFT

Details Shock waves from heavy-quark mesons in AdS/CFT Shock waves from heavy-quark mesons in AdS/CFT

2007-11-09

arxiv.org/abs/0711.1415v1

JHEP0807:108,2008

Physics

High Energy Physics

High Energy Physics - Theory

22 pages

Scientific paper

10.1088/1126-6708/2008/07/108

We calculate the far-field stress-energy tensor of a quark gluon plasma due to a heavy-quark meson moving through it, using a semi-classical description in string theory of the meson as a string hanging into anti-de Sitter space. We find that these mesons create a shock wave but no diffusion wake, in contrast to single heavy quarks described via a trailing string, where the diffusion wake is strong. If thermal QCD responds similarly to heavy quarks and heavy quarkonia, the presence or suppression of the diffusion wake constitutes a prediction which can in principle be checked in heavy-ion collisions.

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