Solar neutrino physics with low-threshold dark matter detectors
Name
PhysRevD.91.095023.pdf
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463.84 KB
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Author(s)
Strigari, L. E.
Billard, Julien
Figueroa-Feliciano, Enectali
Date Issued
May 2015
Journal
Physical Review D
Publisher
American Physical Society
Citation
Billard, J., L. E. Strigari, and E. Figueroa-Feliciano. "Solar neutrino physics with low-threshold dark matter detectors." Phys. Rev. D 91, 095023 (May 2015). © 2015 American Physical Society
Version
Final published version
Abstract
Dark matter detectors will soon be sensitive to Solar neutrinos via two distinct channels: coherent neutrino-nucleus and neutrino-electron elastic scatterings. We establish an analysis method for extracting Solar model properties and neutrino properties from these measurements, including the possible effects of sterile neutrinos which have been hinted at by some reactor experiments and cosmological measurements. Even including sterile neutrinos, through the coherent scattering channel, a 1 ton-year exposure with a low-threshold background free Germanium detector could improve on the current measurement of the normalization of the [superscript 8]B Solar neutrino flux down to 3% or less. Combining with the neutrino-electron elastic scattering data will provide constraints on both the high- and low-energy survival probability and will improve on the uncertainty on the active-to-sterile mixing angle by a factor of 2. This sensitivity to active-to-sterile transitions is competitive and complementary to forthcoming dedicated short baseline sterile neutrino searches with nuclear decays. Finally, we show that such solar neutrino physics potentials can be reached as long as the signal-to-noise ratio is better than 0.1.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT Kavli Institute for Astrophysics and Space Research
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.91.095023
