Froggatt-Nielsen hierarchy and the neutrino mass matrix
| dc.creator | Kamikado, Hiroshi | |
| dc.creator | Shindou, Tetsuo | |
| dc.creator | Takasugi, Eiichi | |
| dc.date | 2008-05-09 | |
| dc.date.accessioned | 2026-07-07T09:38:02Z | |
| dc.date.available | 2026-07-07T09:38:02Z | |
| dc.description | We study the neutrino mass matrix derived from the seesaw mechanism in which the neutrino Yukawa couplings and the heavy Majorana neutrino mass matrix are controlled by the Froggatt-Nielsen mechanism. In order to obtain the large neutrino mixings, two Froggatt-Nielsen fields are introduced with a complex vacuum expectation values. As a by-product, CP violation is systematically induced even if the order one couplings of FN fields are real. We show several predictions of this model, such as theta_{13}, the Dirac CP phase, two Majorana CP phases, the effective mass of the neutrinoless double beta decay and the leptogenesis. The prediction of the branching ratio of mu to e+gamma is also given in SUSY model. | |
| dc.description | 17 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/0805.1338 | |
| dc.identifier | http://arxiv.org/abs/0805.1338 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/160664 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Froggatt-Nielsen hierarchy and the neutrino mass matrix | |
| dc.type | text |