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VOLUME 103 (2016) | ISSUE 6 | PAGE 411
Flavor dependence of jet quenching in pp collisions and its effect on the RAA for heavy mesons
DOI: 10.7868/S0370274X16060011
Abstract
We study the flavor dependence of the medium modification factor Rpp for pp collisions for scenario with formation of a small-size quark-gluon plasma (QGP) for RHIC (\sqrt{s}=0.2 TeV) and LHC (\sqrt{s}=2.76 TeV) energies. We find that at p_T\sim 10 GeV the pion spectrum is suppressed by \sim 20{-}30 (25{-}35) for RHIC (LHC), for D (B) mesons the suppression effect is smaller by a factor of \sim 0.7{-}0.8 (0.5). The flavor hierarchy Rppπ<RppD<RppB is held at p_T\lesssim 20 GeV for RHIC and at p_T\lesssim 70 GeV for LHC. This gives a sizeable reduction of the heavy-to-light ratios of the nuclear modification factors RAA as compared to that in the standard scenario without the QGP production in pp collisions.