Theory Seminar

KEK 素粒子原子核研究所・理論セミナー



TITLE Closing in on Dark Matter with Neutrino Telescopes
(英語 / in English)
SPEAKER Dr. Carsten Rott
(Ohio State Univeristy )
DATE: August 29 (Mon.) 14:00 − 15:00
PLACE: Kenkyu Honkan 1F, Meeting Room 3



    ABSTRACT

Abstract: Unraveling the mysterious nature of dark matter is one of the most exciting scientific goals of this decade. While there is overwhelming evidence for its existence, its properties remain literally in the dark. New approaches in the search for dark matter might finally shed light on its properties and distribution in our Galaxy. Neutrino telescopes offer exciting opportunities for the detection of neutrinos produced as part of dark matter self-annihilations or decays. Using data collected during the construction period of the giga-ton sized IceCube detector, I will present a new analysis that searched for a neutrino anisotropy from the Galactic dark matter halo. This search is complementary to searches performed with gamma-ray telescopes and capable to test dark matter models motivated by the observed lepton excess by PAMELA. I will further discuss results from searches looking at the Galactic Center and dwarf spheroidal galaxies, which are expected to be dark matter dominated. Besides these searches that can constrain the dark matter self-annihilation cross section, I will discuss prospect and methods in the search for dark matter captured by the Sun. These Solar WIMP searches offer complementary ways to direct detection experiments to probe the dark matter nucleon scattering cross sections. The talk will also cover a first look at results obtained with the low-energy extension of IceCube, Deep Core, which is taking data since June 2010. Future upgrades that offers exciting opportunities for dark matter searches down to candidate masses in the GeV range, will be discussed as part of an outlook.