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

Abstract

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.

36 pages, 12 figs

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• NNLO Logarithmic Expansions and Exact Solutions of the DGLAP Equations from x-Space: New Algorithms for Precision Studies at the LHC
• IceHEP High Energy Physics at the South Pole
• Crossing Heavy-Flavour Thresholds in Fragmentation Functions
• SUSY In The Sky: Observing Ultra-High Energy Cosmic Neutralinos
• Decay of Super-Heavy particles: User guide of the SHdecay program
• Probing mSUGRA via the Extreme Universe Space Observatory
• The Passage of Ultrarelativistic Neutralinos through Matter
• Super-heavy X particle decay and Ultra-High Energy Cosmic Rays
• Signals of Very High Energy Neutralinos in Future Cosmic Ray Detectors