2004/06/23 by L. Pandola · 1 citation
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #hep-ph
paper · pdf · doi:10.1016/j.astropartphys.2004.07.007
published as Astropart.Phys.22:219-226,2004 · 12 pages, 7 figures
arxiv created 2004/06/23 · openalex publication_date 2004/08/25 · arxiv updated 2011/05/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The final data of the Gallex and GNO radiochemical experiments have been searched for possible time modulations of the solar neutrino capture rate using the Lomb-Scargle periodogram and the maximum likelihood methods. Both analyses, performed using the raw data, do not support the presence of a time variability with characteristic periods resembling those of rotation of the solar magnetic fields, as previously suggested in the literature by some authors. In this context, the potential sensitivity of the Lomb-Scargle method to radiochemical 71Ga data has also been explored with simulated data. This allowed to set an exclusion plot in the frequency/amplitude plane from the Gallex-GNO dataset.