Tomography of cold and hot QCD matter : tools and diagnosis

Details Tomography of cold and hot QCD matter : tools and diagnosis Tomography of cold and hot QCD matter : tools and diagnosis

2002-10-07

arxiv.org/abs/hep-ph/0210104v3

JHEP 0211 (2002) 044

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pages, 11 figures. Typo corrected in Eq.(4.17)

Scientific paper

10.1088/1126-6708/2002/11/044

The probability distribution D(epsilon) in the energy loss incurred by incoming and outgoing hard quarks in a QCD medium is computed numerically from the BDMPS gluon spectrum. It is shown to follow an empirical log-normal behavior which allows us to give the quenching weight a simple analytic parameterization. The dependence of our results under the infrared and ultraviolet sensitivity of the gluon spectrum is investigated as well. Finally, as an illustration, we discuss and compare estimates for the quenching of hadron spectra in nuclear matter and in a quark-gluon plasma to HERA and RHIC preliminary data.

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