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Transverse momentum and centrality dependence of high-pt non-photonic electron suppression in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV (2007)

Abstract
The STAR collaboration at RHIC reports measurements of the inclusive yield of non-photonic electrons, which arise dominantly from semi-leptonic decays of heavy flavor mesons, over a broad range of transverse momenta ($1.2 < \pt < 10$ \gevc) in \pp, \dAu, and \AuAu collisions at \sqrtsNN = 200 GeV. The non-photonic electron yield exhibits unexpectedly large suppression in central \AuAu collisions at high \pt, suggesting substantial heavy quark energy loss in hot QCD matter. The centrality and \pt dependences of the suppression provide stringent constraints on theoretical models of suppression.

Publication details
Download http://hal.in2p3.fr/in2p3-00130423/en/
Publisher HAL - CCSd - CNRS
Contributors Dominique Girod
Repository CCSd/HAL : e-articles server (based on gBUS) (France)
Keywords Physics/Nuclear Experiment
Type ART_ACL