Transverse momentum and centrality dependence of high-ptnon-photonic electron suppression in Au+Au collisions at $$\sqrt{s_{NN}}$$= 200 GeV
Journal Article
·
· Physical Review Letters
OSTI ID:932577
The STAR collaboration at RHIC reports measurements of theinclusive yield of non-photonic electrons, which arise dominantly fromsemi-leptonic decays of heavy flavor mesons, over a broad range oftransverse momenta (1.2<10 gevc) in pp, dAu, and AuAucollisions at sqrt sNN = 200 GeV. The non-photonic electron yieldexhibits unexpectedly large suppression in central AuAu collisions athigh pt, suggesting substantial heavy quark energy loss at RHIC. Thecentrality and \pt dependences of the suppression provide constraints ontheoretical models of suppression.
- Research Organization:
- COLLABORATION - Brookhaven NationalLaboratory
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 932577
- Report Number(s):
- LBNL-63639; PRLTAO; R&D Project: NRNC; TRN: US0803563
- Journal Information:
- Physical Review Letters, Vol. 98; Related Information: Journal Publication Date: 05/10/2007; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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