Neutrino Astrophysics with the ANTARES Telescope

2015-06-23 | ISBN: 3319204114, 3319387154 | PDF | 119 Pages | 6.52 MB

This thesis is devoted to ANTARES, the first underwater neutrino telescope in the Mediterranean sea.?As the main scientific analysis, a search for high-energy neutrino emission from the region of the Fermi bubbles has been performed using data from the ANTARES detector. A method for the background estimation using off-zones has been developed specially for this measurement. A new likelihood for the limits calculation which treats both observations in the on-zone and in the off-zone in the similar way and also includes different systematic uncertainties has been constructed.?The analysis of 2008-2011 ANTARES data yielded a 1.2 ��? excess of events in the Fermi bubble regions, compatible with the no-signal hypothesis. For the optimistic case of no energy cutoff in the flux, the upper limit is within a factor of three of the prediction of the purely hadronic model based on the measured gamma-ray flux. The sensitivity improves as more data are accumulated (more than 65% gain in the sensitivity is expected once 2012-2016 data are added to the analysis).

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