Heavy quark radiative energy loss—applications to RHIC
Magdalena Djordjevic; Miklos Gyulassy; Magdalena Djordjevic; Department of Physics, Columbia University, 538 W 120th Street, New York, NY 10027, USA; Miklos Gyulassy; Department of Physics, Columbia University, 538 W 120th Street, New York, NY 10027, USA
Журнал:
Journal of Physics G: Nuclear and Particle Physics
Дата:
2004-08-01
Аннотация:
Heavy quark energy loss in a hot QCD plasma is computed taking into account the competing effects due to the suppression of zeroth order gluon radiation below the plasma frequency and the enhancement of gluon radiation due to transition energy loss and medium induced bremsstrahlung. Heavy quark medium induced radiative energy loss is derived to all orders in opacity, (L/λ<sub>g</sub>)<sup>n</sup>. Numerical evaluation of the energy loss suggests small suppression of high p<sub>⊥</sub> charm quarks, and therefore provides a possible explanation for the null effects observed by PHENIX in the prompt electron spectrum in Au+Au as and 200 A GeV.
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