1993/11/19 by C. W. Kim, Kim, C. W., J. A. Lee +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9311317
20pages, plain LaTeX, JHU-TIPAC-930023
arxiv created 1993/11/19 · arxiv updated 2009/11/30
Motivated by the indication that both the Solar and the atmospheric neutrino puzzles may simultaneously be solved by (vacuum as well as matter-induced resonant) oscillations of two generations of neutrinos with large mixing, we have analyzed the data on the Solar and atmospheric neutrinos assuming that all \it three neutrinos are maximally mixed. It is shown that the results of two-generation analyses are still valid even in the three-generation scheme, \it i.e., the two puzzles can be solved simultaneously if Δm212 = m22-m12≃ 10-10eV2 and Δm312 = 10-3∼ 10-1eV2. We have also demonstrated explicitly that with the use of the see-saw mechanism it is possible to have large or maximal mixings for neutrinos even though their masses are highly non-degenerate.