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Searches for high-frequency variations in the 8B solar neutrino flux at the Sudbury Neutrino Observatory

Research output: Contribution to journalJournal article

Published

Journal publication date02/2010
JournalThe Astrophysical Journal
Journal number1
Volume710
Number of pages9
Pages540-548
Original languageEnglish

Abstract

We have performed three searches for high-frequency signals in the solar neutrino flux measured by the Sudbury Neutrino Observatory, motivated by the possibility that solar g-mode oscillations could affect the production or propagation of solar 8B neutrinos. The first search looked for any significant peak in the frequency range 1-144 day–1, 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 Solar and Heliospheric Observatory 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.