Search for High Energy GRB Neutrino Emission with ANTARES

TL;DR

This study used ANTARES data from 2007-2011 to search for high-energy neutrinos coincident with gamma-ray bursts, setting upper limits on neutrino fluxes due to no significant detections.

Contribution

First comprehensive search for GRB neutrinos with ANTARES, applying an optimized likelihood method and providing upper limits on neutrino emissions.

Findings

No significant neutrino excess detected

Set 90% confidence upper limits on neutrino fluxes

Constraints on theoretical neutrino emission models

Abstract

ANTARES is the largest high-energy neutrino telescope in the Northern Hemisphere. A search for neutrinos in coincidence with gamma-ray bursts using ANTARES data from late 2007 to 2011 is presented here. An extended maximum likelihood ratio search was employed to optimise the discovery potential for a neutrino signal as predicted by the numerical NeuCosmA model. No significant excess was found, so 90% confidence upper limits on the fluxes as expected from analytically approximated neutrino-emission models as well as on up-to-date numerical predictions were placed.