Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-06-11
Phys.Rev.C82:064902,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
15 pages, 7 figures, typos and references corrected. Clearer figures. Harmonized with published version
Scientific paper
10.1103/PhysRevC.82.064902
We consider finite-size effects on the radiative energy loss of a fast parton moving in a finite temperature strongly interacting medium, using the light cone path integral formalism put forward by Zakharov. We present a convenient reformulation of the problem which makes possible its exact numerical analysis. This is done by introducing the concept of a radiation rate in the presence of finite-size effects. This effectively extends the finite-temperature approach of AMY (Arnold, Moore, and Yaffe) to include interference between vacuum and medium radiation. We compare results with those obtained in the regime considered by AMY, with those obtained at leading order in an opacity expansion, and with those obtained deep in the LPM (Landau-Pomeranchuk-Migdal) regime.
Caron-Huot Simon
Gale Charles
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