Parton energy loss in an expanding quark-gluon plasma: Radiative vs collisional

Details Parton energy loss in an expanding quark-gluon plasma: Radiative vs collisional Parton energy loss in an expanding quark-gluon plasma: Radiative vs collisional

2007-08-06

arxiv.org/abs/0708.0816v1

JETPLett.86:444-450,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 3 figures

Scientific paper

10.1134/S0021364007190034

We perform a comparison of the radiative and collisional parton energy losses in an expanding quark-gluon plasma. The radiative energy loss is calculated within the light-cone path integral approach. The collisional energy loss is calculated using the Bjorken method with an accurate treatment of the binary collision kinematics. Our numerical results demonstrate that for RHIC and LHC conditions the collisional energy loss is relatively small in comparison to the radiative one. We find an enhancement of the heavy quark radiative energy loss as compared to that of the light quarks at high energies.

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