Prediction of a Photon Peak in Heavy Ion Collisions

Details Prediction of a Photon Peak in Heavy Ion Collisions Prediction of a Photon Peak in Heavy Ion Collisions

2008-06-25

arxiv.org/abs/0806.4172v2

Phys.Rev.Lett.102:192302,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 5 figures. Minor corrections; references added

Scientific paper

10.1103/PhysRevLett.102.192302

We show that if a flavour-less 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/psi the corresponding peak lies between 3 and 5 GeV and could be observed at LHC.

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