Comparison of Jet Quenching Formalisms for a Quark-Gluon Plasma "Brick"
Armesto, Nestor · Cole, Brian · Gale, Charles · Horowitz, William A. · Jacobs, Peter · Jeon, Sangyong · van Leeuwen, Marco · Majumder, Abhijit · Muller, Berndt · Qin, Guang-You · Salgado, Carlos A. · Schenke, Bjorn · Verweij, Marta · Wang, Xin-Nian · Wiedemann, Urs Achim
Original · EN
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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