High-energy neutrino emission from Gamma-Ray Bursts

Abstract

Gamma-Ray Bursts (GRBs) are expected to efficiently accelerate protons up to relativistic energies. High-energy photons can originate from decay of neutral pions produced by the interaction of these protons with the medium surrounding the source. In the same hadronic chain, high energy neutrinos are expected to be produced from decay of charged pions, as well as from decay of generated muons. Neutrinos can travel cosmological distances being much less absorbed than photons, thus providing a powerful tool for the investigation of cosmic sources. In the frame of a recently proposed hadronic model for the emission of high-energy gamma-rays, we estimate the neutrino emission from GRBs and calculate the neutrino fluxes at Earth as a function of the model parameters. The detectability of the expected signal by current and future experiments is also extensively discussed.

arXiv comment18 pages, 6 figures

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