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T: Fachverband Teilchenphysik
T 95: Neutrinoastronomie 2
T 95.2: Talk
Tuesday, February 28, 2012, 17:00–17:15, ZHG 007
Search for evidence of sterile neutrinos with the IceCube Neutrino Observatory — •Marius Wallraff, Anne Schukraft, and Christopher Wiebusch — III. Physikalisches Institut, RWTH Aachen, D-52056 Aachen
The IceCube Neutrino Observatory is a 1 km3 Cherenkov detector located at the geographic South Pole. It records atmospheric muon neutrinos with unprecedented statistics of several ten thousand events per year on analysis level. If sterile neutrinos exist with mass differences in the order of a few eV, the disappearance of muon neutrinos in the energy range of a few TeV due to matter effects may occur. The survival probability depends on the energy and the path of the neutrino through the Earth and thus its zenith angle. The excellent statistics in the relevant range of energies and baselines makes IceCube an ideal tool for testing models of one or more sterile neutrinos. This talk will give an overview of different models and show how IceCube in its 59-string configuration can be sensitive to oscillation effects due to sterile neutrinos.