Invariants, Alignment and the Pattern of Fermion Masses and Mixing

We show that the main features of the pattern of fermion masses and mixing can be expressed in terms of simple relations among weak-basis invariants. In the quark sector, we identify the weak-basis invariants which signal the observed alignment of the up and down quark mass matrices in flavour space...

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Detalles Bibliográficos
Autores principales: Branco, G.C., Silva-Marcos, J.I.
Lenguaje:eng
Publicado: 2011
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2012.07.064
http://cds.cern.ch/record/1405644
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author Branco, G.C.
Silva-Marcos, J.I.
author_facet Branco, G.C.
Silva-Marcos, J.I.
author_sort Branco, G.C.
collection CERN
description We show that the main features of the pattern of fermion masses and mixing can be expressed in terms of simple relations among weak-basis invariants. In the quark sector, we identify the weak-basis invariants which signal the observed alignment of the up and down quark mass matrices in flavour space. In the lepton sector, we indicate how a set of conditions on weak-basis invariants can lead to an approximate tribimaximal lepton mixing matrix. We also show the usefulness of these invariants in the study of specific ans\"atze for the flavour structure of fermion mass matrices.
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institution Organización Europea para la Investigación Nuclear
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spelling cern-14056442023-03-15T19:12:33Zdoi:10.1016/j.physletb.2012.07.064http://cds.cern.ch/record/1405644engBranco, G.C.Silva-Marcos, J.I.Invariants, Alignment and the Pattern of Fermion Masses and MixingParticle Physics - PhenomenologyWe show that the main features of the pattern of fermion masses and mixing can be expressed in terms of simple relations among weak-basis invariants. In the quark sector, we identify the weak-basis invariants which signal the observed alignment of the up and down quark mass matrices in flavour space. In the lepton sector, we indicate how a set of conditions on weak-basis invariants can lead to an approximate tribimaximal lepton mixing matrix. We also show the usefulness of these invariants in the study of specific ans\"atze for the flavour structure of fermion mass matrices.We show that the main features of the pattern of fermion masses and mixing can be expressed in terms of simple relations among weak-basis invariants. In the quark sector, we identify the weak-basis invariants which signal the observed alignment of the up and down quark mass matrices in flavour space. In the lepton sector, we indicate how a set of conditions on weak-basis invariants can lead to the observed pattern of leptonic mixing, including the recent measurement of Ue3 by the Daya Bay Collaboration. We also show the usefulness of these invariants in the study of specific ansätze for the flavour structure of fermion mass matrices.We show that the main features of the pattern of fermion masses and mixing can be expressed in terms of simple relations among weak-basis invariants. In the quark sector, we identify the weak-basis invariants which signal the observed alignment of the up and down quark mass matrices in flavour space. In the lepton sector, we indicate how a set of conditions on weak-basis invariants can lead to an approximate tribimaximal lepton mixing matrix. We also show the usefulness of these invariants in the study of specific ans\"atze for the flavour structure of fermion mass matrices.arXiv:1112.1631CERN-PH-TH-2011-294CERN-PH-TH-2011-294oai:cds.cern.ch:14056442011-12-08
spellingShingle Particle Physics - Phenomenology
Branco, G.C.
Silva-Marcos, J.I.
Invariants, Alignment and the Pattern of Fermion Masses and Mixing
title Invariants, Alignment and the Pattern of Fermion Masses and Mixing
title_full Invariants, Alignment and the Pattern of Fermion Masses and Mixing
title_fullStr Invariants, Alignment and the Pattern of Fermion Masses and Mixing
title_full_unstemmed Invariants, Alignment and the Pattern of Fermion Masses and Mixing
title_short Invariants, Alignment and the Pattern of Fermion Masses and Mixing
title_sort invariants, alignment and the pattern of fermion masses and mixing
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.physletb.2012.07.064
http://cds.cern.ch/record/1405644
work_keys_str_mv AT brancogc invariantsalignmentandthepatternoffermionmassesandmixing
AT silvamarcosji invariantsalignmentandthepatternoffermionmassesandmixing

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