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

Abstract

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.

Authors:
 [1];  [2]
  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)
Publication Date:
OSTI Identifier:
21407945
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 81; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevD.81.113010; (c) 2010 The American Physical Society; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNIHILATION; ANNUAL VARIATIONS; DISTRIBUTION; FLAVOR MODEL; MONOCHROMATIC RADIATION; MUONS; NEUTRINO DETECTION; NEUTRINO OSCILLATION; NEUTRINOS; NONLUMINOUS MATTER; OSCILLATIONS; PAIR PRODUCTION; SPECTRA; SUN; COMPOSITE MODELS; DETECTION; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; FERMIONS; INTERACTIONS; LEPTONS; MAIN SEQUENCE STARS; MASSLESS PARTICLES; MATHEMATICAL MODELS; MATTER; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; QUARK MODEL; RADIATION DETECTION; RADIATIONS; STARS; VARIATIONS

Citation Formats

Esmaili, Arman, School of Physics, Institute for Research in Fundamental Sciences, and Farzan, Yasaman. Oscillation of neutrinos produced by the annihilation of dark matter inside the Sun. United States: N. p., 2010. Web. doi:10.1103/PHYSREVD.81.113010.
Esmaili, Arman, School of Physics, Institute for Research in Fundamental Sciences, & Farzan, Yasaman. Oscillation of neutrinos produced by the annihilation of dark matter inside the Sun. United States. https://doi.org/10.1103/PHYSREVD.81.113010
Esmaili, Arman, School of Physics, Institute for Research in Fundamental Sciences, and Farzan, Yasaman. Tue . "Oscillation of neutrinos produced by the annihilation of dark matter inside the Sun". United States. https://doi.org/10.1103/PHYSREVD.81.113010.
@article{osti_21407945,
title = {Oscillation of neutrinos produced by the annihilation of dark matter inside the Sun},
author = {Esmaili, Arman and School of Physics, Institute for Research in Fundamental Sciences and Farzan, Yasaman},
abstractNote = {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.},
doi = {10.1103/PHYSREVD.81.113010},
url = {https://www.osti.gov/biblio/21407945}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 11,
volume = 81,
place = {United States},
year = {2010},
month = {6}
}