1997/07/17 by S. M. Bilenky, C. Giunti, Bilenky, S. M. +4
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9707372
10 pages, including 2 figures. Talk presented by C. Giunti at the 9th International School "Particles and Cosmology", Kabardino Balkaria, Baksan Valley, Russia, April 15-22, 1997
arxiv created 1997/07/17 · openalex publication_date 1997/07/17 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The mixing of three and four massive neutrinos is considered. It is shown that the neutrino oscillation data are not compatible with a hierarchy of couplings in the three-neutrino case. In the case of four neutrinos, a hierarchy of masses is not favored by the data. Only two schemes with two pairs of close masses separated by a gap of the order of 1 eV can accommodate the results of all experiments. If the existing indications in favor of neutrino oscillations will be confirmed, it will mean that the general features of neutrino mixing are quite different from those of quark mixing.