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Title: Light dark matter detection prospects at neutrino experiments

Abstract

We consider the prospects for the detection of relatively light dark matter through direct annihilation to neutrinos. We specifically focus on the detection possibilities of water Cherenkov and liquid scintillator neutrino detection devices. We find, in particular, that liquid scintillator detectors may potentially provide excellent detection prospects for dark matter in the 4-10 GeV mass range. These experiments can provide excellent corroborative checks of the DAMA/LIBRA annual modulation signal, but may yield results for low mass dark matter in any case. We identify important tests of the ratio of electron to muon neutrino events (and neutrino versus antineutrino events), which discriminate against background atmospheric neutrinos. In addition, the fraction of events which arise from muon neutrinos or antineutrinos (R{sub {mu}} and R{sub {mu}}) can potentially yield information about the branching fractions of hypothetical dark matter annihilations into different neutrino flavors. These results apply to neutrinos from secondary and tertiary decays as well, but will suffer from decreased detectability.

Authors:
; ;  [1]
  1. Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822 (United States)
Publication Date:
OSTI Identifier:
21313444
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 80; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevD.80.113002; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNIHILATION; ANTINEUTRINOS; BRANCHING RATIO; ELECTRONS; FLAVOR MODEL; GEV RANGE 01-10; LIQUID SCINTILLATION DETECTORS; MASS; MUON NEUTRINOS; NEUTRINO DETECTION; NONLUMINOUS MATTER; PARTICLE DECAY; SCINTILLATION COUNTERS

Citation Formats

Kumar, Jason, Learned, John G, and Smith, Stefanie. Light dark matter detection prospects at neutrino experiments. United States: N. p., 2009. Web. doi:10.1103/PHYSREVD.80.113002.
Kumar, Jason, Learned, John G, & Smith, Stefanie. Light dark matter detection prospects at neutrino experiments. United States. doi:10.1103/PHYSREVD.80.113002.
Kumar, Jason, Learned, John G, and Smith, Stefanie. Tue . "Light dark matter detection prospects at neutrino experiments". United States. doi:10.1103/PHYSREVD.80.113002.
@article{osti_21313444,
title = {Light dark matter detection prospects at neutrino experiments},
author = {Kumar, Jason and Learned, John G and Smith, Stefanie},
abstractNote = {We consider the prospects for the detection of relatively light dark matter through direct annihilation to neutrinos. We specifically focus on the detection possibilities of water Cherenkov and liquid scintillator neutrino detection devices. We find, in particular, that liquid scintillator detectors may potentially provide excellent detection prospects for dark matter in the 4-10 GeV mass range. These experiments can provide excellent corroborative checks of the DAMA/LIBRA annual modulation signal, but may yield results for low mass dark matter in any case. We identify important tests of the ratio of electron to muon neutrino events (and neutrino versus antineutrino events), which discriminate against background atmospheric neutrinos. In addition, the fraction of events which arise from muon neutrinos or antineutrinos (R{sub {mu}} and R{sub {mu}}) can potentially yield information about the branching fractions of hypothetical dark matter annihilations into different neutrino flavors. These results apply to neutrinos from secondary and tertiary decays as well, but will suffer from decreased detectability.},
doi = {10.1103/PHYSREVD.80.113002},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 11,
volume = 80,
place = {United States},
year = {2009},
month = {12}
}