Transverse momentum and centrality dependence of high-pT non- photonic electron suppression in Au+Au collisions at √sNN =200 GeV (CROSBI ID 210360)
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Podaci o odgovornosti
Abelev, B.I. ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Zuo, J-X.
engleski
Transverse momentum and centrality dependence of high-pT non- photonic electron suppression in Au+Au collisions at √sNN =200 GeV
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.
momentum; centrality; STAR
STAR Collaboration.
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Podaci o izdanju
98
2007.
192301-1-192301-9
objavljeno
0031-9007
10.1103/PhysRevLett.98.192301