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

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

2007-06-15

arxiv.org/abs/0706.2336v1

Phys.Lett.B666:320-323,2008

Physics

Nuclear Physics

Nuclear Theory

4 pages, 2 figures

Scientific paper

10.1016/j.physletb.2008.04.065

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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