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

B. I. Abelev et al. (STAR Collaboration)
Phys. Rev. Lett. 98, 192301 – Published 10 May 2007; Erratum Phys. Rev. Lett. 106, 159902 (2011)

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<10GeV/c) in p+p, d+Au, and Au+Au collisions at sNN=200GeV. 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.

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  • Received 11 July 2006

DOI:https://doi.org/10.1103/PhysRevLett.98.192301

©2007 American Physical Society

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See Also

Measurement of High-pT Single Electrons from Heavy-Flavor Decays in p+p Collisions at s=200GeV

A. Adare et al. (PHENIX Collaboration)
Phys. Rev. Lett. 97, 252002 (2006)

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Vol. 98, Iss. 19 — 11 May 2007

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