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Kahler corrections and softly broken family symmetries
Spontaneously broken family symmetry provides a promising origin for the observed quark and lepton mass and mixing angle structure. In a supersymmetric theory such structure comes from a combination of the contributions from the superpotential and the K\"{a}hler potential. The superpotential ef...
Autores principales: | , , , , |
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Lenguaje: | eng |
Publicado: |
2004
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1088/1126-6708/2005/07/049 http://cds.cern.ch/record/749795 |
_version_ | 1780904263502790656 |
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author | King, Steve F. Peddie, Iain N.R. Ross, Graham G. Velasco-Sevilla, Liliana Vives, Oscar |
author_facet | King, Steve F. Peddie, Iain N.R. Ross, Graham G. Velasco-Sevilla, Liliana Vives, Oscar |
author_sort | King, Steve F. |
collection | CERN |
description | Spontaneously broken family symmetry provides a promising origin for the observed quark and lepton mass and mixing angle structure. In a supersymmetric theory such structure comes from a combination of the contributions from the superpotential and the K\"{a}hler potential. The superpotential effects have been widely studied but relatively little attention has been given to the effects of the K\"{a}hler sector. In this paper we develop techniques to simplify the analysis of such K\"{a}hler effects. Using them we show that in the class of theories with an hierarchical structure for the Yukawa couplings the K\"{a}hler corrections to both the masses and mixing angles are subdominant. This is true even in cases that texture zeros are filled in by the terms coming from the K\"{a}hler potential. |
id | cern-749795 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2004 |
record_format | invenio |
spelling | cern-7497952023-10-04T07:44:10Zdoi:10.1088/1126-6708/2005/07/049http://cds.cern.ch/record/749795engKing, Steve F.Peddie, Iain N.R.Ross, Graham G.Velasco-Sevilla, LilianaVives, OscarKahler corrections and softly broken family symmetriesParticle Physics - PhenomenologySpontaneously broken family symmetry provides a promising origin for the observed quark and lepton mass and mixing angle structure. In a supersymmetric theory such structure comes from a combination of the contributions from the superpotential and the K\"{a}hler potential. The superpotential effects have been widely studied but relatively little attention has been given to the effects of the K\"{a}hler sector. In this paper we develop techniques to simplify the analysis of such K\"{a}hler effects. Using them we show that in the class of theories with an hierarchical structure for the Yukawa couplings the K\"{a}hler corrections to both the masses and mixing angles are subdominant. This is true even in cases that texture zeros are filled in by the terms coming from the K\"{a}hler potential.Spontaneously broken family symmetry provides a promising origin for the observed quark and lepton mass and mixing angle structure. In a supersymmetric theory such structure comes from a combination of the contributions from the superpotential and the K{a}hler potential. The superpotential effects have been widely studied but relatively little attention has been given to the effects of the K{a}hler sector. In this paper we develop techniques to simplify the analysis of such K{a}hler effects. Using them we show that in the class of theories with an hierarchical structure for the Yukawa couplings the K{a}hler corrections to both the masses and mixing angles are subdominant. This is true even in cases that texture zeros are filled in by the terms coming from the K{a}hler potential.hep-ph/0407012CERN-PH-TH-2004-108MCTP-04-33OUTP-0412PSHEP-04-17CERN-PH-TH-2004-108MCTP-2004-33OUTP-2004-12-PSHEP-2004-17oai:cds.cern.ch:7497952004-07-01 |
spellingShingle | Particle Physics - Phenomenology King, Steve F. Peddie, Iain N.R. Ross, Graham G. Velasco-Sevilla, Liliana Vives, Oscar Kahler corrections and softly broken family symmetries |
title | Kahler corrections and softly broken family symmetries |
title_full | Kahler corrections and softly broken family symmetries |
title_fullStr | Kahler corrections and softly broken family symmetries |
title_full_unstemmed | Kahler corrections and softly broken family symmetries |
title_short | Kahler corrections and softly broken family symmetries |
title_sort | kahler corrections and softly broken family symmetries |
topic | Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1088/1126-6708/2005/07/049 http://cds.cern.ch/record/749795 |
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