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

    • Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • 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

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.