Shock waves from heavy-quark mesons in AdS/CFT

Steven S. Gubser, Silviu S. Pufu, Amos Yarom

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article number108
JournalJournal of High Energy Physics
Volume2008
Issue number7
DOIs
StatePublished - Jul 1 2008

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • AdS-CFT correspondence
  • QCD

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