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arXiv · 0706.2336

Testing AdS/CFT Deviations from pQCD Heavy Quark Energy Loss with Pb+Pb at LHC

W. A. Horowitz·M. Gyulassy
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Abstract

Heavy quark jet quenching in nuclear collisions at LHC is predicted and compared using the classical gravity AdS/CFT correspondence and Standard Model perturbative QCD. The momentum independence and inverse quark mass dependence of the drag coefficient in AdS/CFT differs substantially from the characteristic log(pT/M)/pT variation of the drag in QCD. We propose that the measurement of the momentum dependence of the double ratio of the nuclear modification factors of charm and bottom jets is a robust observable that can be used to search for strong coupling deviations from perturbative QCD predictions.

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W. A. Horowitz, M. Gyulassy. 2007-06-15. Testing AdS/CFT Deviations from pQCD Heavy Quark Energy Loss with Pb+Pb at LHC. https://doi.org/10.1016/j.physletb.2008.04.065

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