On the observability of high-energy neutrinos from gamma ray bursts

A method is presented for the identification of high-energy neutrinos from gamma ray bursts (GRBs) by means of a large-scale neutrino telescope. The procedure makes use of a time profile stacking technique of observed neutrino induced signals in correlation with satellite observations. By selecting a rather wide time window, a possible difference between the arrival times of the gamma and neutrino signals may also be identified. This might provide insight in the particle production processes at the source. By means of a toy model it will be demonstrated that a statistically significant signal can be obtained with a km³ scale neutrino telescope on a sample of 500 GRBs for a signal rate as low as 1 detectable neutrino for 3% of the bursts.