High energy neutrinos from dissipative photospheric models of gamma ray bursts

Abstract

We calculate the high energy neutrino spectrum from gamma-raybursts where the emission arises in a dissipative jet photosphere determined byeither baryonically or magnetically dominated dynamics, and compare theseneutrino spectra to those obtained in conventional internal shock models. Wealso calculate the diffuse neutrino spectra based on these models, which appearcompatible with the current IceCube 40+59 constraints. While a re-analysisbased on the models discussed here and the data from the full array would beneeded, it appears that only those models with the most extreme parameters areclose to being constrained at present. A multi-year operation of the fullIceCube and perhaps a next generation of large volume neutrino detectors may berequired in order to distinguish between the various models discussed.