Measurements of charm quark interaction with the QGP in heavy-ion collisions at STAR

Abstract

We report the measurements of D0 transverse momentum (pT) differential invariant spectra with pT 3 GeV/c in the central collisions, demonstrating that charm quarks suffer significant energy loss in the bulk QCD medium. In this proceeding, the measurements of D0 meson tagged jets at √SNN = 200 GeV in Au+Au collisions are reported as well. We present the nuclear modification factor, RCP, as a function of pT,Jet and zJet, and show the ratios of the D0 radial profile with 1<pT,D0 < 10 GeV/c. Comparisons to model calculations for D0 and D0-tagged jets are also discussed.