A Minimal Type II Seesaw Model

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dc.creatorGu, Pei-Hong
dc.creatorZhang, He
dc.creatorZhou, Shun
dc.date2006-06-29
dc.date2006-09-29
dc.date.accessioned2026-07-07T10:25:03Z
dc.date.available2026-07-07T10:25:03Z
dc.descriptionWe propose a minimal type II seesaw model by introducing only one right-handed neutrino besides the $SU(2)_{L}$ triplet Higgs to the standard model. In the usual type II seesaw models with several right-handed neutrinos, the contributions of the right-handed neutrinos and the triplet Higgs to the CP asymmetry, which stems from the decay of the lightest right-handed neutrino, are proportional to their respective contributions to the light neutrino mass matrix. However, in our minimal type II seesaw model, this CP asymmetry is just given by the one-loop vertex correction involving the triplet Higgs, even though the contribution of the triplet Higgs does not dominate the light neutrino masses. For illustration, the Fritzsch-type lepton mass matrices are considered.
dc.description5 pages, 4 figures, some points clarified, useful references added, to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-ph/0606302
dc.identifierhttp://arxiv.org/abs/hep-ph/0606302
dc.identifierPhys.Rev.D74:076002,2006
dc.identifierdoi:10.1103/PhysRevD.74.076002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176410
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA Minimal Type II Seesaw Model
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