Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-06-15
Phys.Rev. D62 (2000) 073004
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, ReVTeX, small comments added
Scientific paper
10.1103/PhysRevD.62.073004
We analyse, within the framework of universal strength for Yukawa couplings (USY), various structures for the Dirac and Majorana neutrino mass matrices giving rise, through the see-saw mechanism, to a degenerate mass spectrum. A specific USY ansatz is presented for the charged lepton and neutrino effective mass matrix, leading to quasi-degenerate neutrinos and a leptonic mixing matrix which provides a large angle solution for both the atmospheric and solar neutrino problems.
Branco Gustavo C.
Rebelo M. N.
Silva-Marcos Joaquim I.
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