Searches for High Frequency Variations in the ${}^8$B Solar Neutrino Flux at the Sudbury Neutrino Observatory

Abstract

We have performed three searches for high-frequency signals in the solar neutrino flux measured by the Sudbury Neutrino Observatory (SNO), motivated by the possibility that solar $g$-mode oscillations could affect the production or propagation of solar ${}^8$B neutrinos. The first search looked for any significant peak in the frequency range 1/day to 144/day, with a sensitivity to sinusoidal signals with amplitudes of 12% or greater. The second search focused on regions in which $g$-mode signals have been claimed by experiments aboard the SoHO satellite, and was sensitive to signals with amplitudes of 10% or greater. The third search looked for extra power across the entire frequency band. No statistically significant signal was detected in any of the three searches.

37 pages, 17 figures, submitted to ApJ

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• Signatures of Ultralight Dark Matter in Neutrino Oscillation Experiments
• Cosmology-friendly time-varying neutrino masses via the sterile neutrino portal
• Probing scalar dark matter oscillations with neutrino oscillations
• Light scalar dark matter at neutrino oscillation experiments
• A Search for Astrophysical Burst Signals at the Sudbury Neutrino Observatory
• A search for evidence of solar rotation in Super-Kamiokande solar neutrino dataset
• Analysis of Solar Neutrino Data from SuperKamiokande I and II: Back to the Solar Neutrino Problem
• Search for modulations of the solar Be-7 flux in the next-generation neutrino observatory LENA
• The Sun: Light Dark Matter and Sterile Neutrinos
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