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Update on Fermion Mass Models with an Anomalous Horizontal U(1) Symmetry
We reconsider models of fermion masses and mixings based on a gauge anomalous horizontal U(1) symmetry. In the simplest model with a single flavon field and horizontal charges of the same sign for all Standard Model fields, only very few charge assignements are allowed when all experimental data, in...
Autores principales: | , , , |
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Lenguaje: | eng |
Publicado: |
2005
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.71.055004 http://cds.cern.ch/record/814569 |
_version_ | 1780905357166510080 |
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author | Chankowski, Piotr H. Kowalska, Kamila Lavignac, Stephane Pokorski, Stefan |
author_facet | Chankowski, Piotr H. Kowalska, Kamila Lavignac, Stephane Pokorski, Stefan |
author_sort | Chankowski, Piotr H. |
collection | CERN |
description | We reconsider models of fermion masses and mixings based on a gauge anomalous horizontal U(1) symmetry. In the simplest model with a single flavon field and horizontal charges of the same sign for all Standard Model fields, only very few charge assignements are allowed when all experimental data, including neutrino oscillation data, is taken into account. We show that a precise description of the observed fermion masses and mixing angles can easily be obtained by generating sets of the order one parameters left unconstrained by the U(1) symmetry. The corresponding Yukawa matrices show several interesting features which may be important for flavour changing neutral currents and CP violation effects in supersymmetric models. |
id | cern-814569 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2005 |
record_format | invenio |
spelling | cern-8145692023-03-14T20:27:07Zdoi:10.1103/PhysRevD.71.055004http://cds.cern.ch/record/814569engChankowski, Piotr H.Kowalska, KamilaLavignac, StephanePokorski, StefanUpdate on Fermion Mass Models with an Anomalous Horizontal U(1) SymmetryParticle Physics - PhenomenologyWe reconsider models of fermion masses and mixings based on a gauge anomalous horizontal U(1) symmetry. In the simplest model with a single flavon field and horizontal charges of the same sign for all Standard Model fields, only very few charge assignements are allowed when all experimental data, including neutrino oscillation data, is taken into account. We show that a precise description of the observed fermion masses and mixing angles can easily be obtained by generating sets of the order one parameters left unconstrained by the U(1) symmetry. The corresponding Yukawa matrices show several interesting features which may be important for flavour changing neutral currents and CP violation effects in supersymmetric models.We reconsider models of fermion masses and mixings based on a gauge anomalous horizontal U(1) symmetry. In the simplest model with a single flavon field and horizontal charges of the same sign for all Standard Model fields, only very few charge assignements are allowed when all experimental data, including neutrino oscillation data, is taken into account. We show that a precise description of the observed fermion masses and mixing angles can easily be obtained by generating sets of the order one parameters left unconstrained by the U(1) symmetry. The corresponding Yukawa matrices show several interesting features which may be important for flavour changing neutral currents and CP violation effects in supersymmetric models.hep-ph/0501071IFT-2004-31CERN-PH-TH-2004-263CERN-PH-TH-2004-263oai:cds.cern.ch:8145692005-01-10 |
spellingShingle | Particle Physics - Phenomenology Chankowski, Piotr H. Kowalska, Kamila Lavignac, Stephane Pokorski, Stefan Update on Fermion Mass Models with an Anomalous Horizontal U(1) Symmetry |
title | Update on Fermion Mass Models with an Anomalous Horizontal U(1) Symmetry |
title_full | Update on Fermion Mass Models with an Anomalous Horizontal U(1) Symmetry |
title_fullStr | Update on Fermion Mass Models with an Anomalous Horizontal U(1) Symmetry |
title_full_unstemmed | Update on Fermion Mass Models with an Anomalous Horizontal U(1) Symmetry |
title_short | Update on Fermion Mass Models with an Anomalous Horizontal U(1) Symmetry |
title_sort | update on fermion mass models with an anomalous horizontal u(1) symmetry |
topic | Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1103/PhysRevD.71.055004 http://cds.cern.ch/record/814569 |
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