Abstract
 

Charm Study Via Electron-hadron Azimuthal Correlations in p+p and d+Au sqrt(s_NN)=200 GeV Collisions
(oral presentation)
Sotiria Batsouli
Oak Ridge Labs

 

PHOENIX data on single electron production indicate an excess of electrons over known light hadronic sources that has been attributed to open charm and beauty. The non-photonic electron yields are consistent with two different scenarios. One is the creation of a medium completely transparent to heavy quarks. The other is the creation of a highly opaque medium with the heavy quarks rescattering and hadronizing in the system. We can distinguish between these different scenarios by studying the shape modification of the electron-charged hadron azimuthal correlations with respect to the system size. The correlations in p+p and d+Au collisions provide a direct observation of the heavy quark jets and the baseline for possible shape modifications in the Au+Au central collisions. A number of methods for extracting the non-photonic azimuthal corelations and the current results for p+p, d+Au at sqrt(s_NN)=200$ GeV PHENIX data will be presented.

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