The problem of neutrino masses in extensions of the Standard Model
| dc.creator | Masina, Isabella | |
| dc.date | 2001-07-20 | |
| dc.date.accessioned | 2026-07-07T12:45:10Z | |
| dc.date.available | 2026-07-07T12:45:10Z | |
| dc.description | We review the problem of neutrino masses and mixings in the context of Grand Unified Theories. After a brief summary of the present experimental status of neutrino physics, we describe how the see-saw mechanism can automatically account for the large atmospheric mixing angle. We provide two specific examples where this possibility is realized by means of a flavour symmetry. We then review in some detail the various severe problems which plague minimal GUT models (like the doublet-triplet splitting and proton-decay) and which force to investigate the possibility of constructing more elaborate but realistic models. We then show an example of a quasi-realistic SUSY SU(5) model which, by exploiting the crucial presence of an abelian flavour symmetry, does not require any fine-tuning and predicts a satisfactory phenomenology with respect to coupling unification, fermion masses and mixings and bounds from proton decay. | |
| dc.description | 140 pages, 6 figures; based on PhD thesis work; accepted by Int. Jour. of Mod. Phys. A | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0107220 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0107220 | |
| dc.identifier | Int.J.Mod.Phys.A16:5101-5200,2001 | |
| dc.identifier | doi:10.1142/S0217751X01005456 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/221004 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The problem of neutrino masses in extensions of the Standard Model | |
| dc.type | text |