Nuclear Modification of Electron Spectra and Implications for Heavy Quark Energy Loss in Au+Au Collisions at {radical}(s{sub NN})=200 GeV
2006
The PHENIX experiment has measured midrapidity (vertical bar {eta} vertical bar <0.35) transverse momentum spectra (0.4
eta} mesons, were removed. The resulting nonphotonic electron spectra are primarily due to the semileptonic decays of hadrons carrying heavy quarks. Nuclear modification factors were determined by comparison to nonphotonic electrons in p+p collisions. A significant suppression of electrons at high p{sub T} is observed in central Au+Au collisions, indicating substantial energy loss of heavy quarks.
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