STAR heavy-flavor results

TL;DR

This paper summarizes heavy flavor measurements from the STAR experiment, highlighting suppression patterns, contributions of different quark flavors, and quarkonium production in various collision systems at 200GeV.

Contribution

It provides new experimental data on heavy flavor suppression, quarkonium nuclear modification factors, and bottom contribution to non-photonic electrons at RHIC energies.

Findings

Strong suppression of non-photonic electrons in central Au+Au collisions

Nuclear modification factor of J/Psi consistent with unity in central Cu+Cu collisions

Clear signal of Upsilon states in d+Au collisions

Abstract

A summary of the heavy flavor results from the STAR experiment is presented. Both open heavy flavor as well as quarkonia measurements are presented. A strong suppression of heavy flavor non-photonic electrons is observed in central Au+Au collisions at 200GeV. Relative contribution of bottom contribution to non-photonic electron spectra in p+p collisions is extracted from data. Nuclear modification factor of J/Psi mesons at high-pT is found to be consistent with one in central Cu+Cu collisions at 200GeV. Strong signal of Upsilon(1S+2S+3S) state is observed in d+Au collisions at 200GeV.