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Title: Boosted dark matter quarrying at surface neutrino detectors

Abstract

We propose the idea of “Earth Shielding” to reject cosmic-ray backgrounds, in the search for boosted dark matter at surface neutrino detectors, resulting in the enhancement of the signal-to-background ratio. The identification of cosmic-originating rare signals, especially lacking features, at surface detectors is often considered hopeless due to a vast amount of cosmic-ray-induced background, hence underground experiments are better motivated to avoid such a challenge. We claim that surface detectors can attain remarkable sensitivities to even featureless signals, once restricting to events coming through the Earth from the opposite side of the detector location for the signals leaving appreciable tracks from which the source direction is inferred. By doing so, potential backgrounds in the signal region of interest can be substantially suppressed. To validate our claim, we study experimental reaches at several surface experiments such as SBN Program (MicroBooNE, ICARUS, and SBND) and ProtoDUNE for elastic boosted dark matter signatures stemming from the Galactic Center. We provide a systematic discussion on maximizing associated signal sensitivities.

Authors:
 [1];  [2];  [3];  [4]
  1. European Organization for Nuclear Research (CERN), Geneva (Switzerland). Theoretical Physics Dept.
  2. Univ. of Kansas, Lawrence, KS (United States). Dept. of Physics and Astronomy
  3. Chungnam National Univ., Daejeon (Korea, Republic of). Dept. of Physics
  4. Univ. of Chicago, IL (United States). Enrico Fermi Inst.; Yonsei Univ., Seoul (Korea, Republic of). Dept. of Physics. Inst. of Physics and Applied Physics (IPAP)
Publication Date:
Research Org.:
Univ. of Kansas, Lawrence, KS (United States); Chungnam National Univ., Daejeon (Korea, Republic of); Yonsei Univ., Seoul (Korea, Republic of)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Research Foundation of Korea (NRF)
OSTI Identifier:
1512404
Grant/Contract Number:  
SC0017965; NRF-2016R1C1B2015225; NRF-2017R1D1A1B03032076
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 8; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; cosmology of theories beyond the SM

Citation Formats

Kim, Doojin, Kong, Kyoungchul, Park, Jong-Chul, and Shin, Seodong. Boosted dark matter quarrying at surface neutrino detectors. United States: N. p., 2018. Web. doi:10.1007/jhep08(2018)155.
Kim, Doojin, Kong, Kyoungchul, Park, Jong-Chul, & Shin, Seodong. Boosted dark matter quarrying at surface neutrino detectors. United States. doi:10.1007/jhep08(2018)155.
Kim, Doojin, Kong, Kyoungchul, Park, Jong-Chul, and Shin, Seodong. Fri . "Boosted dark matter quarrying at surface neutrino detectors". United States. doi:10.1007/jhep08(2018)155. https://www.osti.gov/servlets/purl/1512404.
@article{osti_1512404,
title = {Boosted dark matter quarrying at surface neutrino detectors},
author = {Kim, Doojin and Kong, Kyoungchul and Park, Jong-Chul and Shin, Seodong},
abstractNote = {We propose the idea of “Earth Shielding” to reject cosmic-ray backgrounds, in the search for boosted dark matter at surface neutrino detectors, resulting in the enhancement of the signal-to-background ratio. The identification of cosmic-originating rare signals, especially lacking features, at surface detectors is often considered hopeless due to a vast amount of cosmic-ray-induced background, hence underground experiments are better motivated to avoid such a challenge. We claim that surface detectors can attain remarkable sensitivities to even featureless signals, once restricting to events coming through the Earth from the opposite side of the detector location for the signals leaving appreciable tracks from which the source direction is inferred. By doing so, potential backgrounds in the signal region of interest can be substantially suppressed. To validate our claim, we study experimental reaches at several surface experiments such as SBN Program (MicroBooNE, ICARUS, and SBND) and ProtoDUNE for elastic boosted dark matter signatures stemming from the Galactic Center. We provide a systematic discussion on maximizing associated signal sensitivities.},
doi = {10.1007/jhep08(2018)155},
journal = {Journal of High Energy Physics (Online)},
number = 8,
volume = 2018,
place = {United States},
year = {2018},
month = {8}
}

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Cited by: 9 works
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