7–10 Apr 2015
Portoroz, Slovenia
Europe/Ljubljana timezone

Boosted Dark Matter

8 Apr 2015, 12:14
23m
James Cook (Portoroz, Slovenia)

James Cook

Portoroz, Slovenia

Hotel Slovenija, Obala 33, 6320 Portoroz, Slovenia
Planary Talk Dark matter

Speaker

Joachim Kopp (University of Mainz)

Description

We show that the high energy events observed in the IceCube detector - usually interpreted as evidence for an astrophysical neutrino flux - could also be a signal of highly boosted dark matter particles scattering on nucleons. This scenario is for instance realized in models featuring a superheavy DM particle which decays into a much lighter dark sector species. We show that, besides explaining the total rate, energy spectrum and track vs. shower ratio of the IceCube events, such a scenario could also easily accommodate the Fermi gamma ray excess if the light dark sector species has a non-negligible relic abundance and annihilates into Standard Model particles.

Author

Joachim Kopp (University of Mainz)

Co-authors

Jia Liu (University of Mainz) Xiaoping Wang (University of Mainz)

Presentation materials