• Neutrino—nucleon cross-section at ultra-high energies in models with large extra dimensions

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      https://www.ias.ac.in/article/fulltext/pram/062/03/0785-0787

    • Keywords

       

      Models beyond standard model; cosmic ray interactions

    • Abstract

       

      We examine whether the models with large extra dimensions can provide an explanation for the GZK violating ultra-high energy cosmic rays (UHECR). In these models the neutrino—nucleon cross-section rises rapidly with energy and hence cosmic rays might be identified with neutrinos. We calculate the neutrino-nucleon cross-section at ultra high energies by assuming that it is dominated by the production ofp-branes. We perform the calculation in a generalized Randall-Sundrum model and Lykken-Randall model and find cross-sections of the order of 100 mb at neutrino energies of 1020 eV, which is required for explaining UHECR events.

    • Author Affiliations

       

      Sukanta Panda1

      1. Department, Indian Institute of Technology, Kanpur - 208 016, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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