Phys. Rev. Lett. 102, 192302 (2009) [4 pages]Prediction of a Photon Peak in Relativistic Heavy Ion CollisionsReceived 16 July 2008; published 14 May 2009 We show that if a flavorless vector meson remains bound after deconfinement, and if its limiting velocity in the quark-gluon plasma is subluminal, then this meson produces a distinct peak in the spectrum of thermal photons emitted by the plasma. We also demonstrate that this effect is a universal property of all strongly coupled, large-Nc plasmas with a gravity dual. For the J/ψ, the corresponding peak lies between 3 and 5 GeV and could be observed in heavy-ion collisions at the LHC. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.192302
DOI:
10.1103/PhysRevLett.102.192302
PACS:
25.75.Cj, 11.25.Tq
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