Speaker
Mustafa Mustafa
(Purdue University)
Description
Heavy quarks are produced early in the heavy-ion collisions and are expected to interact with the created strongly interacting partonic medium differently from light quarks. Therefore, they can shed new light on understanding the medium's properties. Simultaneous measurements of spectra and elliptic flow of electrons from semileptonic decays of heavy flavor hadrons at different collision energies and centralities can provide experimental insight to distinguish different energy loss theoretical models and to characterize the degree of thermalization of heavy quarks at different energies. We will present STAR measurements of non-photonic electrons at mid-rapidity in Au+Au collisions at $\sqrt{s_{NN}} = 39$, $62.4$ and $200$ GeV. The data were taken during 2010 run with detector configurations for minimum photonic conversion background. Both the invariant yields and elliptic flow measurements will be reported as a function of $p_T$, centrality and collision energy. We will also report non-photonic electrons nuclear modification factor, $R_{AA}$, at $\sqrt{s_{NN}} = 200$GeV.
Author
Mustafa Mustafa
(Purdue University)
Peer reviewing
Paper
Paper files:
