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 language||English (US)|
|Journal||Journal of High Energy Physics|
|State||Published - Jul 1 2008|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- AdS-CFT correspondence