Velocity-dependent dark matter interactions in single-electron resolution semiconductor detectors with directional sensitivity

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Heikinheimo , M , Nordlund , K , Tuominen , K & Mirabolfathi , N 2019 , ' Velocity-dependent dark matter interactions in single-electron resolution semiconductor detectors with directional sensitivity ' , Physical Review D , vol. 99 , no. 10 , 103018 . https://doi.org/10.1103/PhysRevD.99.103018

Title: Velocity-dependent dark matter interactions in single-electron resolution semiconductor detectors with directional sensitivity
Author: Heikinheimo, Matti; Nordlund, Kai; Tuominen, Kimmo; Mirabolfathi, Nader
Contributor: University of Helsinki, Particle Physics and Astrophysics
University of Helsinki, Helsinki Institute of Urban and Regional Studies (Urbaria)
University of Helsinki, Department of Physics
Date: 2019-05-29
Language: eng
Number of pages: 11
Belongs to series: Physical Review D
ISSN: 2470-0010
URI: http://hdl.handle.net/10138/302823
Abstract: We investigate the velocity and recoil momentum dependence of dark matter interactions with ordinary matter. In particular we focus on the single-electron resolution semiconductor detectors, which allow experimental assessment of sub-GeV dark matter masses. We find that, within a specific mass range depending on the detector material, the dark matter interactions result in a signal characterized by daily modulation. Furthermore, we find that the detailed structure of this modulation is sensitive to the velocity and momentum dependence of dark matter interactions. We identify the optimal mass range for the prevalence of these effects.
Subject: 114 Physical sciences
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