Journal
NUCLEAR PHYSICS A
Volume 774, Issue -, Pages 697-700Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2006.06.117
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We present preliminary measurements of electron production in p+p, d+Au, and Au+Au collisions at root s(NN) = 200 GeV for transverse momenta 1.5 GeV/c < p(T) < 8 GeV/c as a function of centrality. These measurements were carried out using the STAR, Time Projection Chamber and Barrel Electromagnetic Calorimeter. In this manuscript we describe the measurement techniques used to discriminate electrons from hadrons and the method used to evaluate the non-photonic contributions from semi-leptonic decays of heavy flavor mesons. The observed nuclear modification factors, R-AA, of non-photonic electrons indicate at substantial energy loss of heavy quarks at moderate to high p(T).
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