Susy QCD and High Energy Cosmic Rays 1. Fragmentation functions of Susy QCD

Details Susy QCD and High Energy Cosmic Rays 1. Fragmentation functions of Susy QCD Susy QCD and High Energy Cosmic Rays 1. Fragmentation functions of Susy QCD

2001-06-28

arxiv.org/abs/hep-ph/0106326v2

Phys.Rev. D65 (2002) 075001

Physics

High Energy Physics

High Energy Physics - Phenomenology

36 pages, 12 figs

Scientific paper

10.1103/PhysRevD.65.075001

The supersymmetric evolution of the fragmentation functions (or timelike evolution) within N=1 $QCD$ is discussed and predictions for the fragmentation functions of the theory (into final protons) are given. We use a backward running of the supersymmetric DGLAP equations, using a method developed in previous works. We start from the usual QCD parameterizations at low energy and run the DGLAP back, up to an intermediate scale -assumed to be supersymmetric- where we switch-on supersymmetry. From there on we assume the applicability of an N=1 supersymmetric evolution (ESAP). We elaborate on possible application of these results to High Energy Cosmic Rays near the GZK cutoff.

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