Search for Boosted Dark Matter Interacting with Electrons in Super-Kamiokande



Kachulis, C, Abe, K, Bronner, C, Hayato, Y, Ikeda, M, Iyogi, K, Kameda, J, Kato, Y, Kishimoto, Y, Marti, Ll
et al (show 150 more authors) (2018) Search for Boosted Dark Matter Interacting with Electrons in Super-Kamiokande. PHYSICAL REVIEW LETTERS, 120 (22).

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Abstract

A search for boosted dark matter using 161.9 kt yr of Super-Kamiokande IV data is presented. We search for an excess of elastically scattered electrons above the atmospheric neutrino background, with a visible energy between 100 MeV and 1 TeV, pointing back to the Galactic center or the Sun. No such excess is observed. Limits on boosted dark matter event rates in multiple angular cones around the Galactic center and Sun are calculated. Limits are also calculated for a baseline model of boosted dark matter produced from cold dark matter annihilation or decay. This is the first experimental search for boosted dark matter from the Galactic center or the Sun interacting in a terrestrial detector.

Item Type: Article
Uncontrolled Keywords: particle physics, particle dark matter, Milky Way, Sun, neutrino detectors
Depositing User: Symplectic Admin
Date Deposited: 25 Jun 2018 06:28
Last Modified: 26 Nov 2020 08:59
DOI: 10.1103/PhysRevLett.120.221301
Open Access URL: https://journals.aps.org/prl/abstract/10.1103/Phys...
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URI: http://livrepository.liverpool.ac.uk/id/eprint/3023000