Published January 1, 2021
| Version v1
Journal article
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Searching for solar KDAR with DUNE
Creators
- 1. Univ Oxford, Oxford OX1 3RH, England
- 2. Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
- 3. Univ Atlantico, Barranquilla, Colombia
- 4. Univ Tecnol Fed Parana, Curitiba, Parana, Brazil
- 5. Georgian Tech Univ, Tbilisi, Georgia
- 6. Brookhaven Natl Lab, Upton, NY 11973 USA
- 7. Univ Bristol, Bristol BS8 1TL, Avon, England
- 8. Univ Houston, Houston, TX 77204 USA
- 9. Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
- 10. Variable Energy Cyclotron Ctr, Kolkata 700064, W Bengal, India
- 11. Univ Warwick, Coventry CV4 7AL, W Midlands, England
- 12. Univ Sussex, Brighton BN1 9RH, E Sussex, England
- 13. Univ Colorado, Boulder, CO 80309 USA
- 14. Kansas State Univ, Manhattan, KS 66506 USA
- 15. Swiss Fed Inst Technol, Zurich, Switzerland
- 16. Augustana Univ, Sioux Falls, SD 57197 USA
- 17. Inst Galego Fis Altas Enerxias, La Coruna, Spain
Description
The observation of 236 MeV muon neutrinos from kaon-decay-at-rest (KDAR) originating in the core of the Sun would provide a unique signature of dark matter annihilation. Since excellent angle and energy reconstruction are necessary to detect this monoenergetic, directional neutrino flux, DUNE with its vast volume and reconstruction capabilities, is a promising candidate for a KDAR neutrino search. In this work, we evaluate the proposed KDAR neutrino search strategies by realistically modeling both neutrino-nucleus interactions and the response of DUNE. We find that, although reconstruction of the neutrino energy and direction is difficult with current techniques in the relevant energy range, the superb energy resolution, angular resolution, and particle identification offered by DUNE can still permit great signal/background discrimination. Moreover, there are non-standard scenarios in which searches at DUNE for KDAR in the Sun can probe dark matter interactions.
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