Published September 29, 2020
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Sensitivity of the COHERENT experiment to accelerator-produced dark matter
Creators
- Akimov, D.1
- An, P.2
- Awe, C.2
- Barbeau, P. S.2
- Becker, B.3
- Belov, V.1
- Blackston, M. A.4
- Bolozdynya, A.5
- Cabrera-Palmer, B.6
- Chen, M.7
- Conley, E.2
- Cooper, R. L.7
- Daughhetee, J.3
- del Valle Coello, M.8
- Detwiler, J. A.9
- Durand, M. R.9
- Efremenko, Y.3
- Elliott, S. R.10
- Fabris, L.4
- Febbraro, M.4
- Fox, W.8
- Rich, C.11
- 1. Kurchatov Institute
- 2. Duke University
- 3. University of Tennessee
- 4. Oak Ridge National Laboratory
- 5. National Research Nuclear University
- 6. Sandia National Laboratories
- 7. New Mexico State University
- 8. Indiana University
- 9. University of Washington
- 10. Los Alamos National Laboratory
- 11. University of Chicago
Description
The COHERENT experiment is well poised to test sub-GeV dark matter models using detectors sensitive to coherent elastic neutrino-nucleus scattering (CEvNS) in the 𝜋+ decay-at-rest (𝜋-DAR) neutrino beam produced by the Spallation Neutron Source. We show a planned 750-kg single-phase liquid argon scintillation detector would place leading limits on scalar light dark matter models for dark matter particles produced through vector and leptophobic portals in the absence of other effects beyond the standard model. The characteristic timing profile of a 𝜋-DAR beam allows a unique opportunity for constraining systematic uncertainties on the standard model background using a time window where dark matter signal is not expected, enhancing expected sensitivity. Additionally, we discuss future prospects which show that an on-axis CEvNS detector would probe the thermal abundance for a scalar dark matter candidate for all couplings 𝛼′ ≤1 for 15 MeV dark matter with just 1.0 tonne-yr of exposure with increased exposure testing a wider range of dark matter masses and spins.
Notes
Due to the large number of authors, only the first 20 and the University of Chicago authors are included on the above author list. Please download the article for the complete list of authors.
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PhysRevD.102.052007.pdf
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Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.102.052007
- Other
- oai:uchicago.tind.io:14196
Funding
- Alfred P. Sloan Foundation
- Consortium for Nonproliferation Enabling Capabilities
- Institute for Basic Science
- IBS-R017-G1-2019-a00
- National Science Foundation
- Russian Foundation for Basic Research
- 17-02-01077 A
- U.S. Department of Energy