Ultra high energy neutrino-nucleon cross section from cosmic ray experiments and neutrino telescopes

Abstract

We deduce the cosmogenic neutrino flux by jointly analysing ultra high energy cosmic ray data from HiRes-I and II, AGASA and the Pierre Auger Observatory. We make two determinations of the neutrino flux by using a model-dependent method and a model-independent method. The former is well-known, and involves the use of a power-law injection spectrum. The latter is a regularized unfolding procedure. We then use neutrino flux bounds obtained by the RICE experiment to constrain the neutrino-nucleon inelastic cross section at energies inaccessible at colliders. The cross section bounds obtained using the cosmogenic fluxes derived by unfolding are the most model-independent bounds to date.

20 pages, 6 figures, 2 tables

References in corpus (1)

• CRPropa: A Numerical Tool for the Propagation of UHE Cosmic Rays, Gamma-rays and Neutrinos

Cited by in corpus (4)

• Observational Constraints on the Ultra-high Energy Cosmic Neutrino Flux from the Second Flight of the ANITA Experiment
• New Limits on the Ultra-high Energy Cosmic Neutrino Flux from the ANITA Experiment
• Spacetime noncommutativity and ultra-high energy cosmic ray experiments
• Constraints on Neutrino-Nucleon Interactions at energies of 1 EeV with the IceCube Neutrino Observatory