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24 April 2024
 
  » arxiv » hep-ph/0507227

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Percolation Effects in Very High Energy Cosmic Rays
J. Dias de Deus ; M.C. Espirito Santo ; M. Pimenta ; C. Pajares ;
Date 19 Jul 2005
Subject hep-ph
AbstractMost QCD models of high energy collisions predict that the inelasticity $K$ is an increasing function of the energy. We argue that, due to percolation of strings, this behaviour will change and, at $sqrt{s} simeq 10^4$ GeV, the inelasticity will start to decrease with the energy. This has straightforward consequences in high energy cosmic ray physics: 1) the relative depth of the shower maximum $ar{X}$ grows faster with energy above the knee; 2) the energy measurements of ground array experiments at GZK energies could be overestimated.
Source arXiv, hep-ph/0507227
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