Heavy-Flavor Measurements by the PHENIX Experiment at RHIC

Abstract

In recent years, PHENIX has studied many important observables related to heavy-flavor physics through their leptonic decay measurements including the invariant yield of electrons from nonphotonic sources, and prompt single muons, both of which are dominated by D and B mesons. Charm and beauty cross-sections were measured and compared through single lepton, and lepton-hadron correlations in p+p collisions at $\sqrt{s}$ = 200 GeV. Observables for quarkonia production such as invariant yield and polarization were also measured in p+p collisions. In Au+Au collisions, preliminary results for the $R_{AA}$ for single electrons and a 90% CL upper limit for the suppression of ${\rm Y}$s were produced. And in $d$+Au collisions, a preliminary $R_{CP}$ study for $J/\psi$ production in different centrality ranges was extracted.

8 pages, 9 figures, International Conference on Strangeness in Quark Matter Conference 2009 Proceedings

References in corpus (12)

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• Measurement of high-p_T Single Electrons from Heavy-Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV
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• Possible solution of the J/psi production puzzle
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• Quarkonia measurement in p+p and d+Au collisions at sqrt(s)=200 GeV by PHENIX Detector
• Quantitative study of the transverse correlation of soft gluons in high energy QCD
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• Open Heavy Flavor at PHENIX