Comparison of Jet Quenching Formalisms for a Quark-Gluon Plasma "Brick"

Details Comparison of Jet Quenching Formalisms for a Quark-Gluon Plasma "Brick" Comparison of Jet Quenching Formalisms for a Quark-Gluon Plasma "Brick"

2011-06-06

arxiv.org/abs/1106.1106v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 24 figures

Scientific paper

We review the currently available formalisms for radiative energy loss of a high-momentum parton in a dense strongly interacting medium. The underlying theoretical framework of the four commonly used formalisms is discussed and the differences and commonalities between the formalisms are highlighted. A quantitative comparison of the single gluon emission spectra as well as the energy loss distributions is given for a model system consisting of a uniform medium with a fixed length of L=2 fm and L=5 fm (the `Brick'). Sizable quantitative differences are found. The largest differences can be attributed to specific approximations that are made in the calculation of the radiation spectrum.

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