1998/08/10 by V. B. Semikoz, A. A. Bykov, А. А. Быков +8
Earth and Planetary Sciences · Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #Geophysics and Gravity Measurements #High Energy Physics - Phenomenology (hep-ph) #Solar and Space Plasma Dynamics #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9808274
LaTex 10 pages, 5 PostScript figures included, Talk given at the EU Conference "New Trends in Neutrino Physics", Ringberg, May 1998
arxiv created 1998/08/10 · openalex publication_date 1998/08/10 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The magnetic field in the solar convective zone has a random small-scale component with the r.m.s. value substantially exceeding the strength of a regular large-scale field. For two Majorana neutrino flavors × two helicities in the presence of a neutrino transition magnetic moment and nonzero neutrino mixing we analyze the displacement of the allowed (Δm2 - sin22θ) - parameter region reconciled for the SuperKamiokande(SK) and radiochemical (GALLEX, SAGE, Homestake) experiments in dependence on the r.m.s. magnetic field value b. We find an effective production of electron antineutrinos in the Sun even for small neutrino mixing through the cascade conversions in the random magnetic field that would be a signature of the Majorana nature of neutrino if νeR will be registered. Basing on the present SK bound on electron antineutrinos we also estimated the corresponding excluded area in the plane Δm2, sin22θ.