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Title: Dark matter searches for monoenergetic neutrinos arising from stopped meson decay in the Sun

Dark matter can be gravitationally captured by the Sun after scattering off solar nuclei. Annihilations of the dark matter trapped and accumulated in the centre of the Sun could result in one of the most detectable and recognizable signals for dark matter. Searches for high-energy neutrinos produced in the decay of annihilation products have yielded extremely competitive constraints on the spin-dependent scattering cross sections of dark matter with nuclei. Recently, the low energy neutrino signal arising from dark-matter annihilation to quarks which then hadronize and shower has been suggested as a competitive and complementary search strategy. These high-multiplicity hadronic showers give rise to a large amount of pions which will come to rest in the Sun and decay, leading to a unique sub-GeV neutrino signal. We here improve on previous works by considering the monoenergetic neutrino signal arising from both pion and kaon decay. We consider searches at liquid scintillation, liquid argon, and water Cherenkov detectors and find very competitive sensitivities for few-GeV dark matter masses.
Authors:
;  [1] ;  [2] ;  [3] ;  [4]
  1. Department of Physics, Sungkyunkwan University,Suwon, 440-746 (Korea, Republic of)
  2. Department of Physics & Astronomy, University of Hawai’i,Honolulu, HI, 96822 (United States)
  3. Department of Physics, University of Arizona,Tucson, AZ, 85721 (United States)
  4. (United States)
Publication Date:
OSTI Identifier:
22458404
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2015; Journal Issue: 11; Other Information: PUBLISHER-ID: JCAP11(2015)039; OAI: oai:repo.scoap3.org:12772; Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA)
Sponsoring Org:
SCOAP3, CERN, Geneva (Switzerland)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNIHILATION; ARGON; CHERENKOV COUNTERS; CROSS SECTIONS; DECAY; GEV RANGE; HADRONS; KAONS; LIQUID SCINTILLATION DETECTORS; MULTIPLICITY; NEUTRINOS; NONLUMINOUS MATTER; NUCLEI; PIONS; QUARKS; SCATTERING; SPIN; SUN