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Title: Light scalar dark matter at neutrino oscillation experiments

Couplings between light scalar dark matter (DM) and neutrinos induce a perturbation to the neutrino mass matrix. If the DM oscillation period is smaller than ten minutes (or equivalently, the DM particle is heavier than 0.69×10 -17 eV), the fast-averaging over an oscillation cycle leads to a modification of the measured oscillation parameters. Here, we present a specific μ - $$\tau$$ symmetric model in which the measured value of θ 13 is entirely generated by the DM interaction, and which reproduces the other measured oscillation parameters. For a scalar DM particle lighter than 10 -15 eV, adiabatic solar neutrino propagation is maintained. A suppression of the sensitivity to CP violation at long baseline neutrino experiments is predicted in this model. We find that DUNE cannot exclude the DM scenario at more than 3σ C.L. for bimaximal, tribimaximal and hexagonal mixing, while JUNO can rule it out at more than 6σ C.L. by precisely measuring both θ 12 and θ 13.
Authors:
 [1] ;  [1] ;  [2]
  1. Univ. of Hawaii, Honolulu, HI (United States)
  2. Iowa State Univ., Ames, IA (United States)
Publication Date:
Grant/Contract Number:
SC0010504
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 4; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Univ. of Hawaii, Honolulu, HI (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Neutrino Physics; Beyond Standard Model; Solar and Atmospheric Neutrinos
OSTI Identifier:
1501880

Liao, Jiajun, Marfatia, Danny, and Whisnant, Kerry. Light scalar dark matter at neutrino oscillation experiments. United States: N. p., Web. doi:10.1007/jhep04(2018)136.
Liao, Jiajun, Marfatia, Danny, & Whisnant, Kerry. Light scalar dark matter at neutrino oscillation experiments. United States. doi:10.1007/jhep04(2018)136.
Liao, Jiajun, Marfatia, Danny, and Whisnant, Kerry. 2018. "Light scalar dark matter at neutrino oscillation experiments". United States. doi:10.1007/jhep04(2018)136. https://www.osti.gov/servlets/purl/1501880.
@article{osti_1501880,
title = {Light scalar dark matter at neutrino oscillation experiments},
author = {Liao, Jiajun and Marfatia, Danny and Whisnant, Kerry},
abstractNote = {Couplings between light scalar dark matter (DM) and neutrinos induce a perturbation to the neutrino mass matrix. If the DM oscillation period is smaller than ten minutes (or equivalently, the DM particle is heavier than 0.69×10-17 eV), the fast-averaging over an oscillation cycle leads to a modification of the measured oscillation parameters. Here, we present a specific μ - $\tau$ symmetric model in which the measured value of θ13 is entirely generated by the DM interaction, and which reproduces the other measured oscillation parameters. For a scalar DM particle lighter than 10-15 eV, adiabatic solar neutrino propagation is maintained. A suppression of the sensitivity to CP violation at long baseline neutrino experiments is predicted in this model. We find that DUNE cannot exclude the DM scenario at more than 3σ C.L. for bimaximal, tribimaximal and hexagonal mixing, while JUNO can rule it out at more than 6σ C.L. by precisely measuring both θ12 and θ13.},
doi = {10.1007/jhep04(2018)136},
journal = {Journal of High Energy Physics (Online)},
number = 4,
volume = 2018,
place = {United States},
year = {2018},
month = {4}
}