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Flavor dependence of jet quenching in pp collisions and its effect on R AA for heavy mesons

  • Fields, Particles, and Nuclei
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Abstract

The flavor dependence of the medium modification factor R pp for pp collisions has been studied for a 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. It has been found that at p T ~ 10 GeV the pion spectrum is suppressed by ~20–30 (25–35)% for RHIC (LHC), for D (B) mesons the suppression effect is smaller by a factor of ~0.7–0.8 (0.5). The flavor hierarchy R π pp < R D pp < R B pp is held at p T ≲ 20 GeV for RHIC and at p T ≲ 70 GeV for LHC. This gives a significant reduction of the heavy-to-light ratios of the nuclear modification factors R AA as compared to that in the standard scenario without the QGP production in pp collisions.

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Authors and Affiliations

  1. Landau Institute for Theoretical Physics, Russian Academy of Sciences, Moscow, 117334, Russia

    B. G. Zakharov

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  1. B. G. Zakharov
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Zakharov, B.G. Flavor dependence of jet quenching in pp collisions and its effect on R AA for heavy mesons. Jetp Lett. 103, 363–368 (2016). https://doi.org/10.1134/S0021364016060126

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  • DOI: https://doi.org/10.1134/S0021364016060126

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