Dresden 2013 – scientific programme

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T: Fachverband Teilchenphysik

T 89: Neutrinoastronomie 4

T 89.9: Talk

Wednesday, March 6, 2013, 18:45–19:00, HSZ-E03

Measurement of Atmospheric Neutrino Oscillations and Matter Effects with PINGU — •Stefan Coenders, Sebastian Euler, Kai Krings, Markus Vehring, Marius Wallraff, and Christopher Wiebusch — III. Physikalisches Institut, RWTH Aachen, D-52056 Aachen

With IceCube's low-energy extension DeepCore the first significant effects of atmospheric neutrino oscillations have been observed. The planned "Precision Icecube Next Generation Upgrade" (PINGU) inside DeepCore will lower the energy threshold to a few GeV, where matter effects of neutrino oscillations have to be taken into account. The Mikheyev-Smirnov-Wolfenstein (MSW) effect modifies the mixing between flavor and mass eigenstates of the neutrinos, resulting in stronger oscillations. Furthermore, neutrinos when passing through the Earth core experience parametric enhancement due to multiple discontinuities in the electron density. In this talk the effects of matter oscillations and the capabilities to measure these effects with PINGU are investigated.