Maximal atmospheric neutrino mixing and the small ratio of muon to tau mass

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dc.creatorGrimus, W.
dc.creatorLavoura, L.
dc.date2003-09-04
dc.date2003-11-17
dc.date.accessioned2026-07-07T10:48:51Z
dc.date.available2026-07-07T10:48:51Z
dc.descriptionWe discuss the problem of the small ratio of muon mass to tau mass in a class of seesaw models where maximal atmospheric neutrino mixing is enforced through a $μ$--$τ$ interchange symmetry. We introduce into those models an additional symmetry $T$ such that $m_μ= 0$ in the case of exact $T$ invariance. The symmetry $T$ may be softly broken in the Higgs potential, and one thus achieves $m_μ\ll m_τ$ in a technically natural way. We speculate on a wider applicability of this mechanism.
dc.description10 pages, plain LaTeX, no figures, minor changes, final version for J. Phys. G
dc.identifierhttps://arxiv.org/abs/hep-ph/0309050
dc.identifierhttp://arxiv.org/abs/hep-ph/0309050
dc.identifierJ.Phys.G30:73-82,2004
dc.identifierdoi:10.1088/0954-3899/30/2/007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184024
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMaximal atmospheric neutrino mixing and the small ratio of muon to tau mass
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