https://doi.org/10.1051/epjconf/202429609003
Measurements of charm quark interaction with the QGP in heavy-ion collisions at STAR
1 State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
2 Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
* e-mail: suyuann@mail.ustc.edu.cn
Published online: 26 June 2024
We report the measurements of D0 transverse momentum (pT) differential invariant spectra with pT < 8 GeV/c for 0–10%, 10–40%, and 40–80% centrality classes in isobar collisions (96Ru + 96Ru and 96Zr + 96Zr) at √SNN = 200 GeV with the STAR experiment. The strong suppression of D0 yield is observed for 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.
© The Authors, published by EDP Sciences, 2024
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