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October 5, 2018 | 3:30 p.m. - 4:30 p.m.
Category: Seminar
Location: Physics #312
Cost: Free
Audience: Academic Staff, Current Graduate Students, Current Undergraduate Students, Faculty

Title: Detecting Boosted Dark Matter at Large Volume Neutrino Detectors

Speaker: Dr. Joshua Berger (University of Pittsburgh)

Abstract: We study novel scenarios where thermal dark matter (DM) can be efficiently captured in the Sun and annihilate into boosted dark matter. In models with semi-annihilating DM, where DM has a non-minimal stabilization symmetry, or in models with a multi-component DM sector, annihilation of DM can give rise to stable dark sector particles with moderate Lorentz boosts. Taking advantage of the energetic proton recoils that arise when the boosted DM scatters off matter, we propose a detection strategy which uses large volume terrestrial detectors, such as those designed to detect neutrinos or proton decays. In particular, we propose a search for proton tracks pointing away from the Sun. We present bounds and sensitivity at Super-Kamiokande and Hyper-Kamiokande respectively. We then discuss the possibilities for enhanced sensitivity at DUNE and other liquid argon TPC detectors. We present the first full Monte Carlo event generation for boosted dark matter and discuss the modeling challenges. We use this tool to discuss the first fully realized analysis of boosted dark matter at DUNE.

For more information about this event, please contact James Osborne at (313) 577-1409 or jaosborne@wayne.edu.