Speaker
Description
Heavy quarks, such as bottom and charm, are primarily produced during
the initial collision. In heavy ion collisions they experience the full
evolution of the hot medium formed. As such they are valuable probes of
the properties of the quark gluon plasma (QGP). The PHENIX Collaboration
has previously published results in Au+Au collisions at $\sqrt{s}$ =200
GeV using the PHENIX silicon vertex detector that indicated a different
energy loss pattern for bottom and charm quarks. To more accurately
measure this effect and produce a well-understood $R_{AA}$, a similar
analysis is being done in the 2015 p+p collision data set at $\sqrt{s}$
=200 GeV. The analysis uses Bayesian unfolding techniques applied
simultaneously to the heavy flavor electron yield and the distance of
closest approach for heavy flavor electrons in order to provide
separated charm and bottom invariant yields.
This poster will present the distance of closest approach measurements
for electrons from heavy flavor decays, their use in the unfolding
procedure, and the status of the analysis.
| Preferred Track | Open Heavy Flavors |
|---|---|
| Collaboration | PHENIX |
