Neutrino—nucleon cross-section at ultra-high energies in models with large extra dimensions |
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Authors: | Sukanta Panda |
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Affiliation: | (1) Department, Indian Institute of Technology, 208 016 Kanpur, India |
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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. |
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Keywords: | Models beyond standard model cosmic ray interactions |
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