Neutrino masses and non abelian horizontal symmetries

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dc.creatorAntonelli, V.
dc.creatorCaravaglios, F.
dc.creatorFerrari, R.
dc.creatorPicariello, M.
dc.date2002-07-29
dc.date2002-11-06
dc.date.accessioned2026-07-07T08:11:37Z
dc.date.available2026-07-07T08:11:37Z
dc.descriptionRecent neutrino experiments have made very significant progresses and our knowledge of neutrino masses and mixing has considerably improved. In a model independent Monte Carlo approach, we have examined a very large class of textures, in the context of non abelian horizontal symmetries; we have found that neutrino data select only those charged lepton matrices with left-right asymmetric texture. The large atmospheric mixing angle needs m_{23} ~= m_{33}. This result,if combined with similar recent findings for the quark sector in the B oscillations, can be interpreted as a hint for SU(5) unification. In the neutrino sector strict neutrino anarchy is disfavored by data, and at least a factor 2 of suppression in the first row and column of the neutrino majorana mass matrix is required.
dc.description22 pages, 18 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0207347
dc.identifierhttp://arxiv.org/abs/hep-ph/0207347
dc.identifierPhys.Lett. B549 (2002) 325
dc.identifierdoi:10.1016/S0370-2693(02)02904-0
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/132178
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNeutrino masses and non abelian horizontal symmetries
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