Flavor dependence of jet quenching in pp collisions and its effect on the RAA for heavy mesons
B. G. Zakharov Landau Institute for Theoretical Physics, 117334 Moscow, Russia
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 ( TeV)
and LHC ( TeV) energies.
We find that at GeV
the pion spectrum is suppressed by
for RHIC (LHC), for D (B) mesons the suppression
effect is smaller by a factor of (0.5).
The flavor hierarchy Rppπ<RppD<RppB
is held at GeV for RHIC and at 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.