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Title: Boosted dark matter quarrying at surface neutrino detectors

Journal Article · · Journal of High Energy Physics (Online)
 [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)
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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.

Research Organization:
Univ. of Kansas, Lawrence, KS (United States); Chungnam National Univ., Daejeon (Korea, Republic of); Yonsei Univ., Seoul (Korea, Republic of)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); National Research Foundation of Korea (NRF)
Grant/Contract Number:
SC0017965; NRF-2016R1C1B2015225; NRF-2017R1D1A1B03032076
OSTI ID:
1512404
Journal Information:
Journal of High Energy Physics (Online), Vol. 2018, Issue 8; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

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Cited By (5)

Monochromatic dark neutrinos and boosted dark matter in noble liquid direct detection text January 2018
Light Dark Matter at Neutrino Experiments text January 2018
Light Dark Matter at Neutrino Experiments text January 2019
Light Dark Matter at Neutrino Experiments journal May 2019
Monochromatic dark neutrinos and boosted dark matter in noble liquid direct detection journal May 2019

Figures / Tables (10)

Table 1(p. 5)table Table 1
Figure 1(p. 9)figure Figure 1
Figure 2(p. 10)figure Figure 2
Figure 3(p. 13)figure Figure 3
Figure 4(p. 15)figure Figure 4
Figure 5(p. 16)figure Figure 5
Table 2(p. 16)table Table 2
Figure 6(p. 18)figure Figure 6
Figure 7(p. 19)figure Figure 7
Figure 8(p. 19)figure Figure 8

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Related Subjects

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