Transverse Momentum and Centrality Dependence of High-pT Nonphotonic Electron Suppression in Au+Au Collisions at √sNN=200  GeV

Abelev, B. I. and Planinić, Mirko and Poljak, Nikola and Zuo, J. X. (STAR Collaboration) (2007) Transverse Momentum and Centrality Dependence of High-pT Nonphotonic Electron Suppression in Au+Au Collisions at √sNN=200  GeV. Physical Review Letters, 98 (19). pp. 192301-6. ISSN 0031-9007

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Abstract

The STAR collaboration at the BNL Relativistic Heavy-Ion Collider (RHIC) reports measurements of the inclusive yield of nonphotonic electrons, which arise dominantly from semileptonic decays of heavy flavor mesons, over a broad range of transverse momenta (1.2<pT<10  GeV/c) in p+p, d+Au, and Au+Au collisions at √sNN=200  GeV. The nonphotonic electron yield exhibits an unexpectedly large suppression in central Au+Au collisions at high pT, suggesting substantial heavy-quark energy loss at RHIC. The centrality and pT dependences of the suppression provide constraints on theoretical models of suppression.

Item Type: Article
Date: May 2007
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2007) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 01 Jul 2014 11:05
Last Modified: 01 Jul 2014 11:05
URI: http://digre.pmf.unizg.hr/id/eprint/2355

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