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T: Fachverband Teilchenphysik

T 81: Neutrinophysik 7 (Doppelbetazerfall, sterile Neutrinos)

T 81.9: Vortrag

Mittwoch, 29. März 2017, 18:55–19:10, VSH 118

Search for sterile neutrinos with IceCube DeepCore — •Andrii Terliuk for the IceCube collaboration — DESY, Platanenallee 6, 15738 Zeuthen, Germany

Sterile neutrinos are a hypothetical neutrino species that could explain the tension between some accelerator, reactor and radiochemical neutrino experiments. They have no standard weak interactions. However, they can mix with the three standard neutrinos, resulting in a modification of the characteristic pattern of atmospheric neutrino oscillations. DeepCore is a densely instrumented region in the center of the IceCube Neutrino Observatory that has an energy threshold for neutrino detection about 10 GeV. We present the results of a search for an eV-scale sterile neutrino signal in the atmospheric neutrino oscillation pattern using three years of low-energy DeepCore data taken between 2011 and 2014.