Searches for high-frequency variations in the 8B solar neutrino flux at the sudbury neutrino observatory
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 1-144day-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.
|Keywords||Methods: data analysis, Neutrinos, Sun: helioseismology|
Aharmim, B. (B.), Ahmed, S.N. (S. N.), Anthony, A.E. (A. E.), Barros, N. (N.), Beier, E.W. (E. W.), Bellerive, A, … Zuber, K. (K.). (2010). Searches for high-frequency variations in the 8B solar neutrino flux at the sudbury neutrino observatory. Astrophysical Journal, 710(1), 540–548. doi:10.1088/0004-637X/710/1/540