Measurements of open charm hadron production in Au+Au Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV at STAR

Abstract

We report on the measurements of production of various charmed hadrons in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV (including $D^0(\overline{D^0})$ and ${\Lambda }_c^{\pm }$) obtained via topological reconstruction, utilizing the Heavy Flavor Tracker at STAR. Precise results on the $D^0$ yields from the 2014 data are reported for a wide transverse momentum range down to 0 in various centrality bins. With the high-statistics data collected in 2014 and 2016, and the usage of a supervised machine learning algorithm for signal-to-background separation, the first measurement of the centrality and transverse momentum dependences of ${\Lambda }_c^{\pm }$ production is shown. Finally, the total charm quark cross section extracted from these measurements in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV is presented.

Hard Probes 2018

Cited by in corpus (5)

• Further developments of a multi-phase transport model for relativistic nuclear collisions
• A Study of the Properties of the QCD Phase Diagram in High-Energy Nuclear Collisions
• An experimental review of open heavy flavor and quarkonium production at RHIC
• Charmed hadron production in an improved quark coalescence model
• Improvement of heavy flavor productions in a multi-phase transport model updated with modern nPDFs