Speaker
Ms
Julia Schmid
(ECAP / University of Erlangen)
Description
ANTARES is the largest high-energy neutrino telescope on the Northern Hemisphere.
Its main scientific purpose is the search for astrophysical muon neutrinos that are
detected via their charged-current interaction in Earth and the subsequent
Cherenkov emission of the secondary muon in the water of the Mediterranean Sea.
Among the most promising candidate sources are gamma-ray bursts, as they are
thought to accelerate not only electrons -- leading to the observed gamma rays --
but also protons, which would yield the emission of EeV neutrinos.
Additionally, their short duration provides intrinsically low coincident background.
A search for muon neutrinos from gamma-ray bursts using data of the ANTARES
neutrino telescope is presented here. Employing an extended maximum likelihood
ratio search, the analysis is optimized for a discovery of a neutrino signal as predicted
by the numerical NeuCosmA model. No significant excess over background is found,
thus 90% confident level upper limits on the neutrino flux from the analytically
approximated Guetta model and from the numerical NeuCosmA model are derived.
Author
Ms
Julia Schmid
(ECAP / University of Erlangen)
