2000/04/16 by M. Maris, Maris, M., S. T. Petcov +2
Earth and Planetary Sciences · Physics and Astronomy · #Astrophysics (astro-ph) #Atmospheric Ozone and Climate #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #astro-ph #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0004151
8 pages latex text + 6 ps-files; includes 6 figures; new results based on the Super-Kamiokande data on the {\it Mantle} D-N asymmetry included; the text is changed accordingly and the 6 figures are substituted with new ones including the constraints from the {\it Mantle} asymmetry data
openalex publication_date 2000/04/16 · arxiv created 2000/05/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The current Super-Kamiokande data on the D-N asymmetry between the the day event rate and the \it Night and \it Core event rates, produced by solar neutrinos which respectively cross the Earth along any trajectory and cross the Earth core before reaching the detector, imply rather stringent constraints on the MSW small mixing angle (SMA) νe → νμ(τ) solution of the solar neutrino problem. A simplified analysis shows, in particular, that a substantial subregion of the SMA solution region is disfavored by these data. The \it Core D-N asymmetry data alone allow to rule out at 99.7% C.L. a part of this subregion. The constraints on the MSW large mixing angle and LOW νe → νμ(τ) solutions as well as on the MSW νe → νs solution, following from the data on the \it Night and \it Core D-N asymmetries are also discussed.