Neutrino Masses, Mixing Angles and the Unification of Couplings in the MSSM

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dc.creatorCarena, M.
dc.creatorEllis, J.
dc.creatorLola, S.
dc.creatorWagner, C. E. M.
dc.date1999-06-15
dc.date.accessioned2026-07-07T10:53:08Z
dc.date.available2026-07-07T10:53:08Z
dc.descriptionIn the light of the gathering evidence for $ν_μ-ν_τ$ neutrino oscillations, coming in particular from the Super-Kamiokande data on atmospheric neutrinos, we re-analyze the unification of gauge and Yukawa couplings within the minimal supersymmetric extension of the Standard Model (MSSM). Guided by a range of different grand-unified models, we stress the relevance of large mixing in the lepton sector for the question of bottom-tau Yukawa coupling unification. We also discuss the dependence of the favoured value of $\tanβ$ on the characteristics of the high-energy quark and lepton mass matrices. In particular, we find that, in the presence of large lepton mixing, Yukawa unification can be achieved for intermediate values of $\tanβ$ that were previously disfavoured. The renormalization-group sensitivity to the structures of different mass matrices may enable Yukawa unification to serve as a useful probe of GUT models.
dc.description29 pages, latex, 5 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/9906362
dc.identifierhttp://arxiv.org/abs/hep-ph/9906362
dc.identifierEur.Phys.J.C12:507-520,2000
dc.identifierdoi:10.1007/s100529900262
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/185383
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNeutrino Masses, Mixing Angles and the Unification of Couplings in the MSSM
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