July 31, 2017 to August 4, 2017
Fermi National Accelerator Laboratory
US/Central timezone

Searches for dark matter with the Super-Kamiokande detector

Aug 1, 2017, 11:15 AM
15m
Hornets Nest (Fermi National Accelerator Laboratory)

Hornets Nest

Fermi National Accelerator Laboratory

Presentation Dark Matter Dark Matter

Speaker

Ms Katarzyna Frankiewicz (National Centre for Nuclear Research)

Description

Indirect searches for dark matter using data collected with the Super-Kamiokande detector in years 1996-2016 were performed. The excess of neutrinos from possible dark matter sources such as Sun, Earth and Galactic Center, compared to the expected atmospheric neutrino background was searched. Event samples including both electron and muon neutrinos covering a wide range of energies were used, with sensitivity to dark matter masses down to tens of GeV. Allowed number of dark matter induced neutrinos which can be contained in SK data so far was estimated. Obtained limits on DM induced neutrino flux were related to limit on spin-dependent (for the Sun) and spin-independent (for the Sun and the Earth's core) WIMP-nucleon cross section. In case of Galactic Center analysis, the upper limit on the self-annihilation cross-section was derived.

Primary author

Ms Katarzyna Frankiewicz (National Centre for Nuclear Research)

Presentation materials