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Improving a radiative plus collisional energy loss model for application to RHIC and LHC

Simon Wicks·Miklos Gyulassy
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Abstract

With the QGP opacity computed perturbatively and with the global entropy constraints imposed by the observed dNch/dy~1000, radiative energy loss alone cannot account for the observed suppression of single non-photonic electrons. Collisional energy loss is comparable in magnitude to radiative loss for both light and heavy jets. Two aspects that significantly affect the collisional energy loss are examined: the role of fluctuations, and the effect of introducing a running QCD coupling as opposed to the fixed alpha_s=0.3 used previously.

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Simon Wicks, Miklos Gyulassy. 2007-06-20. Improving a radiative plus collisional energy loss model for application to RHIC and LHC. https://doi.org/10.1088/0954-3899%2F34%2F8%2Fs141

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