Speaker
Jaroslav Bielcik
(Czech Technical University (CZ))
Description
The properties of the hot and dense nuclear matter produced at RHIC in heavy ion collisions can be investigated in multiple ways by heavy flavor production.
In this talk, we will present the STAR results of open charm hadron production at mid-rapidity in $p+p$ and Au+Au collisions at
$\sqrt{s_{NN}}$ = 200 GeV. Open charm mesons were reconstructed
directly via hadronic decay channels with daughter particles
identified by TPC and TOF detectors. With abundant statistics of
Au+Au collisions collected by STAR in the year 2010 and 2011, the
D-meson is measured at $p_T$ from 0 to 8 GeV in minimum bias Au+Au
collisions. The centrality dependence of D-meson $p_T$ spectra as well as the nuclear modification factor will be presented. The measurement of the $D^{0}$ elliptic flow in 200 GeV Au+Au collisions
will be reported. Finally, we will discuss the open charm hadron
measurement in $\sqrt{s}=500$ GeV $p+p$ collisions to study the energy dependence of charm production.
Author
Jaroslav Bielcik
(Czech Technical University (CZ))
