Ultra high energy neutrinos from gamma ray bursts

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  • 18 February 1998
Abstract
Protons accelerated to high energies in the relativistic shocks that generate gamma ray bursts photoproduce pions, and then neutrinos in situ. I show that ultra high energy neutrinos (> 10^19 eV) are produced during the burst and the afterglow. A larger flux, also from bursts, is generated via photoproduction off CMBR photons in flight but is not correlated with currently observable bursts, appearing as a bright background. Temporal and directional coincidences with bursts detected by satellites can separate correlated neutrinos from the background, while background neutrinos will allow measurements of dipole and quadrupole moments of the distributions of their sources, thusly helping to establish the origin of ultra high energy cosmic rays. Both measurements may be doable with AIRWATCH--class experiments.

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