Neutrino Astrophysics with the ANTARES Telescope (Springer Theses)

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 σ 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). This thesis is devoted to ANTARES, the first underwater neutrino telescope in the Mediterranean sea.℗lAs 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.℗lThe analysis of 2008ĺl2011 ANTARES data yielded a 1.2 ll℗l 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 2012ĺl2016 data are added to the analysis) Front Matter....Pages i-xiii Introduction....Pages 1-23 The ANTARES Detector....Pages 25-48 Simulation of the ANTARES Detector Work....Pages 49-69 Event Reconstruction and Data Selection....Pages 71-88 A Search for Neutrino Emission from the Fermi Bubbles....Pages 89-113 Back Matter....Pages 115-119