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T: Fachverband Teilchenphysik

T 98: Neutrinoastronomie 5

T 98.7: Talk

Friday, March 2, 2012, 10:15–10:30, ZHG 007

Neutrino emission from GRB fireballs, revised — •Svenja Hümmer, Philipp Baerwald, and Walter Winter — Institut für theoretische Physik und Astrophysik, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany

We present a revision of the analytic fireball neutrino computation estimating the neutrino spectrum from an observed gamma-ray spectrum. In this talk we illustrate the origin of the large corrections which arise. Then we use a numerical calculation to show the effect of a more sophisticated treatment of photohadronic interactions. As a next step we demonstrate the impact of our results on the IceCube-40 analysis and quantify uncertainties in the neutrino flux prediction.