Oscillation of neutrinos produced by the annihilation of dark matter inside the Sun

Journal Article · Tue Jun 01 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.113010· OSTI ID:21407945

Esmaili, Arman ^[1]; Farzan, Yasaman ^[2]

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1. Department of Physics, Sharif University of Technology, P. O. Box 11365-8639, Tehran (Iran, Islamic Republic of)
2. School of Physics, Institute for Research in Fundamental Sciences (IPM), P. O. Box 19395-5531, Tehran (Iran, Islamic Republic of)

The annihilation of dark matter particles captured by the Sun can lead to a neutrino flux observable in neutrino detectors. Considering the fact that these dark matter particles are nonrelativistic, if a pair of dark matter annihilates to a neutrino pair, the spectrum of neutrinos will be monochromatic. We show that in this case, even after averaging over the production point inside the Sun, the oscillatory terms of the oscillation probability do not average to zero. This leads to interesting observable features in the annual variation of the number of muon track events. We show that smearing of the spectrum due to thermal distribution of dark matter inside the Sun is too small to wash out this variation. We point out the possibility of studying the initial flavor composition of neutrinos produced by the annihilation of dark matter particles via measuring the annual variation of the number of {mu}-track events in neutrino telescopes.

• OSTI ID: 21407945
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 81; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
ANNUAL VARIATIONS
COMPOSITE MODELS
DETECTION
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FLAVOR MODEL
INTERACTIONS
LEPTONS
MAIN SEQUENCE STARS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATTER
MONOCHROMATIC RADIATION
MUONS
NEUTRINO DETECTION
NEUTRINO OSCILLATION
NEUTRINOS
NONLUMINOUS MATTER
OSCILLATIONS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
QUARK MODEL
RADIATION DETECTION
RADIATIONS
SPECTRA
STARS
SUN
VARIATIONS