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Title: Indirect dark matter detection in the light of sterile neutrinos

Abstract

The recent global fit of short baseline neutrino oscillation data favors the presence of one (or more) sterile neutrino state which leads to new mass splitting Δm{sup 2} ∼ 1 eV{sup 2}. We consider the effect of this new states on the evolution of neutrinos from the dark matter annihilation inside the Sun. We show that neutrinos with energy E{sub ν}∼>100 GeV undergo resonant active-sterile oscillation which depletes the flux of neutrinos arriving at the Earth. As an example of this effect, we present the oscillation probabilities for the case of monochromatic neutrinos from the direct annihilation of dark matter particles to neutrinos and the depletion due to the presence of sterile neutrinos. We discuss the seasonal variation of oscillation probabilities which is expected for the case of monochromatic neutrinos.

Authors:
;  [1]
  1. Instituto de Fisica Gleb Wataghin — UNICAMP, 13083-859, Campinas, SP (Brazil)
Publication Date:
OSTI Identifier:
22279783
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2012; Journal Issue: 05; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANNIHILATION; ASTROPHYSICS; COSMOLOGY; EV RANGE; GEV RANGE; MASS DIFFERENCE; MONOCHROMATIC RADIATION; NEUTRINO OSCILLATION; NEUTRINOS; NONLUMINOUS MATTER; PROBABILITY; REST MASS; SEASONAL VARIATIONS; SUN

Citation Formats

Esmaili, Arman, and Peres, O. L.G.,. Indirect dark matter detection in the light of sterile neutrinos. United States: N. p., 2012. Web. doi:10.1088/1475-7516/2012/05/002.
Esmaili, Arman, & Peres, O. L.G.,. Indirect dark matter detection in the light of sterile neutrinos. United States. https://doi.org/10.1088/1475-7516/2012/05/002
Esmaili, Arman, and Peres, O. L.G.,. Tue . "Indirect dark matter detection in the light of sterile neutrinos". United States. https://doi.org/10.1088/1475-7516/2012/05/002.
@article{osti_22279783,
title = {Indirect dark matter detection in the light of sterile neutrinos},
author = {Esmaili, Arman and Peres, O. L.G.,},
abstractNote = {The recent global fit of short baseline neutrino oscillation data favors the presence of one (or more) sterile neutrino state which leads to new mass splitting Δm{sup 2} ∼ 1 eV{sup 2}. We consider the effect of this new states on the evolution of neutrinos from the dark matter annihilation inside the Sun. We show that neutrinos with energy E{sub ν}∼>100 GeV undergo resonant active-sterile oscillation which depletes the flux of neutrinos arriving at the Earth. As an example of this effect, we present the oscillation probabilities for the case of monochromatic neutrinos from the direct annihilation of dark matter particles to neutrinos and the depletion due to the presence of sterile neutrinos. We discuss the seasonal variation of oscillation probabilities which is expected for the case of monochromatic neutrinos.},
doi = {10.1088/1475-7516/2012/05/002},
url = {https://www.osti.gov/biblio/22279783}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 05,
volume = 2012,
place = {United States},
year = {2012},
month = {5}
}