Measurements of non-photonic electrons with the STAR experiment

Hot Quarks 2014: Workshop for young scientists on the physics of ultrarelativistic nucleus-nucleus collisions

Rusáková, Olga^1

Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Behová 7, Prague 1

11519, Czech Republic^1

关键词: Au+Au collisions;    Heavy ion collision;    Heavy quark productions;    Nuclear matters;    Nuclear modification factors;    Perturbative QCD;    Relativistic heavy ion collision;    Semileptonic decay;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/612/1/012034/pdf
DOI  :  10.1088/1742-6596/612/1/012034

来源: IOP

【 摘 要 】

Non-photonic electrons (NPE), produced by semileptonic decays of D and B mesons, are good probes to study the properties of hot and dense medium created in relativistic heavy ion collisions at RHIC. Studies of heavy quark production in p+p collisions can test the validity of perturbative QCD. They also provide a baseline to study the effiects of nuclear matter on the production of heavy quarks in heavy ion collisions. In this paper, we present recent results of NPE spectra measured in p+p collisions at √s = 200 GeV in mid-rapidity. We also report NPE nuclear modification factor RAAand elliptic flow v2in Au+Au collisions at √sNN= 200 GeV.