2018ApJ...869..112L -
Astrophys. J., 869, 112-112 (2018/December-3)
The sterile-active neutrino flavor model: the imprint of dark matter on the electron neutrino spectra.
LOPES I.
Abstract (from CDS):
Contact interactions between sterile neutrinos and dark matter particles in a hidden sector have been suggested as a good solution to simultaneously resolve the dark matter problem and anomalies in neutrino experiments. In this non-standard particle physics model, sterile and active neutrinos change their flavor through vacuum oscillations and matter (or Mikheyev-Smirnov-Wolfenstein) oscillations, in which the latter mechanism of flavor oscillation depends strongly on the concentration of dark matter in the Sun's core. We found that a large concentration of dark matter in the Sun's interior changes substantially the shape of 8B and hep electron neutrino spectra, but has an insignificant impact on the other neutrino spectra (i.e., pp, pep, 7Be, 15O, 13N, and 17F). The strength of the interaction of the dark matter particles with neutrinos depends on an effective coupling constant, Gχ, which is an analog of the Fermi constant for the hidden sector. By using the latest data on the 8B solar neutrino flux, we found that Gχ must be smaller than 0.5 x 109 GF for this particle physics model to be in agreement with the data.
Abstract Copyright:
© 2018. The American Astronomical Society.
Journal keyword(s):
neutrinos - Sun: evolution - Sun: interior
Simbad objects:
1
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