Graduate Seminar on Nov. 8th

Speaker: Katarzyna Frankiewicz

Title: Search for dark matter induced neutrinos with the Super-Kamiokande detector.

Abstract: The indirect search for neutrinos from dark matter annihilation in the Earth core will be presented. In this analysis we use atmospheric neutrino data collected with the Super-Kamiokande (SK) detector in years 1996-2016. Analysis method is based on detailed simulation of signal (neutrinos from dark matter annihilation) and background (atmospheric neutrinos) for the SK detector. Angular distributions and energy spectra as expected for signal and background are taken into account. Various dark matter annihilation channels and wide range of relic particle masses are considered. Based on the global fit of a simulated signal and background to the data, allowed number of dark matter induced neutrinos contained in SK data can be constrained. Obtained limits on dark matter induced neutrino flux are related to limit on spin-independent WIMP-nucleon cross section and compared against results of direct detection experiments.

Venue: Room 22, Tuesday Nov. 8th 2016, 9:00 A.M.