Speaker
Jason Adrian Kamin
(Johann-Wolfgang-Goethe Univ. (DE))
Description
Charm and bottom quarks are very effective probes of the Quark Gluon
Plasma (QGP) created in heavy ion collisions as they are created in
the initial hard scattering and therefore fully traverse the hot
nuclear medium before fragmentation into the vacuum. Along with a
well-established baseline measurement, any observed modification to
heavy-ion heavy flavor spectra can yield insight into the interaction
between the heavy quarks and the QGP.
Dilepton correlations provide an extremely useful window to open heavy
flavor. Semi-leptonic decays of B and D mesons can be studied through
both the unlike sign and like sign correlated dilepton pairs. They
yield a clean signal which is largely free of contamination and
provide reasonable separation of charm and bottom. Moreover, they
access a region of phase space where pQCD calculations are more
reliable than for single lepton observables.
The PHENIX experiment has extrapolated the charm and bottom cross
sections through both leading order and next-to-leading order
calculations for $sqrt{s}=200$~GeV and $sqrt{s}=500$~GeV. These heavy
flavor results from two particle correlations have been explored in
both $p$+$p$ and $d$+Au collisions at PHENIX. Heavy flavor production
determined in both the dielectron and dimuon channels will be shown.
Author
Jason Adrian Kamin
(Johann-Wolfgang-Goethe Univ. (DE))
