Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-10-06
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 4 figures, proceedings of ISMD 2009, Gomel Region, Belarus
Scientific paper
Parametrizations of fragmentation functions (FFs) from $e^+$-$e^-$ and p-\=p collisions are combined with a parton spectrum model in a pQCD folding integral to produce minimum-bias {\em fragment distributions}. A model of in-medium FF modification is included. Calculated fragment distributions are compared with {\em hard components} from p-p and Au-Au $p_t$ spectra. Data are well described by pQCD over a large kinematic region for a range of Au-Au centralities.
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