Tri-bimaximal neutrino mixing and neutrinoless double beta decay

dc.creatorHirsch, M.
dc.creatorMorisi, S.
dc.creatorValle, J. W. F.
dc.date2008-04-09
dc.date.accessioned2026-07-07T12:14:22Z
dc.date.available2026-07-07T12:14:22Z
dc.descriptionWe present a tri-bimaximal lepton mixing scheme where the neutrinoless double beta decay rate (bb0v) has a lower bound which correlates with the ratio alpha = Dmsol/Dmatm well determined by current data, as well as with the unknown Majorana CP phase phi12 characterizing the solar neutrino sub-system. For the special value phi12 = pi/2 (opposite CP-sign neutrinos) the bb0v rate vanishes at tree level when Dmsol/Dmatm = 3/80, only allowed at 3 sigma. For all other cases the rate is nonzero, and lies within current and projected experimental sensitivities close to phi12=0. We suggest two model realizations of this scheme in terms of an A4xZ2 and A4xZ4 flavour symmetries.
dc.description4 pages and 3 figures
dc.identifierhttps://arxiv.org/abs/0804.1521
dc.identifierhttp://arxiv.org/abs/0804.1521
dc.identifierPhys.Rev.D78:093007,2008
dc.identifierdoi:10.1103/PhysRevD.78.093007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211170
dc.subjectHigh Energy Physics - Phenomenology
dc.titleTri-bimaximal neutrino mixing and neutrinoless double beta decay
dc.typetext

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