Comparison of jet quenching formalisms for a quark-gluon plasma "brick"

Nestor Armesto, Brian Cole, Charles Gale, William A. Horowitz, Peter Jacobs, Sangyong Jeon, Marco van Leeuwen, Abhijit Majumder, Berndt Müller, Guang-You Qin, Carlos A. Salgado, Björn Schenke (+3 others)
2012 Physical Review C  
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
more » ... ngth 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.
doi:10.1103/physrevc.86.064904 fatcat:bi5cppthwbelpkmqvpwq4wm7ry