Directional searches at DUNE for sub-GeV monoenergetic neutrinos arising from dark matter annihilation in the Sun
Journal Article
·
· Journal of Cosmology and Astroparticle Physics
- Sungkyunkwan Univ., Suwon (Republic of Korea)
- Univ. of Hawaii, Honolulu, HI (United States)
- Univ. of Arizona, Tucson, AZ (United States)
Here, we consider the use of directionality in the search for monoenergetic sub-GeV neutrinos arising from the decay of stopped kaons, which can be produced by dark matter annihilation in the core of the Sun. When these neutrinos undergo charged-current interactions with a nucleus at a neutrino detector, they often eject a proton which is highly peaked in the forward direction. The direction of this track can be measured at DUNE, allowing one to distinguish signal from background by comparing on-source and off-source event rates. We discover that directional information can enhance the signal to background ratio by up to a factor of 5.
- Research Organization:
- Univ. of Hawaii, Honolulu, HI (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)
- Grant/Contract Number:
- SC0010504; FG02-13ER-41976; PHY-1250573
- OSTI ID:
- 1598590
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Vol. 2017, Issue 01; ISSN 1475-7516
- Publisher:
- Institute of Physics (IOP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 16 works
Citation information provided by
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Web of Science
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