A time-dependent search for high-energy neutrinos from bright GRBs with ANTARES

A time-dependent search for high-energy neutrinos from bright GRBs with ANTARES

Blog Article

Astrophysical point-like neutrino sources, like Gamma-Ray Bursts (GRBs), are one of the main targets for neutrino telescopes, since they are among the best candidates for Ultra-High-Energy Cosmic Ray (UHECR) acceleration.From the interaction between the accelerated protons and the intense radiation fields of the source jet, charged mesons are produced, which then decay into neutrinos.The methods and the results of a search for high-energy neutrinos in spatial and temporal correlation with the detected gamma-ray emission are presented ut solution gel for cats for four bright GRBs observed between 2008 and 2013: a time-dependent analysis, optimised for each flare of the selected bursts, is performed to predict arcade smokey the bear belt detailed neutrino spectra.

The internal shock scenario of the fireball model is investigated, relying on the neutrino spectra computed through the numerical code NeuCosmA.The analysis is optimized on a per burst basis, through the maximization of the signal discovery probability.Since no events in ANTARES data passed the optimised cuts, 90% C.

L.upper limits are derived on the expected neutrino fluences.