Flavour structure and proton decay in 6D orbifold GUTs

We study proton decay in a supersymmetric {\sf SO(10)} gauge theory in six dimensions compactified on an orbifold. The dimension-5 proton decay operators are forbidden by R-symmetry, whereas the dimension-6 operators are enhanced due to the presence of KK towers. Three sequential quark-lepton famili...

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Detalles Bibliográficos
Autores principales: Buchmuller, W., Covi, L., Emmanuel-Costa, D., Wiesenfeldt, S.
Lenguaje:eng
Publicado: 2004
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1088/1126-6708/2004/09/004
http://cds.cern.ch/record/768627
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author Buchmuller, W.
Covi, L.
Emmanuel-Costa, D.
Wiesenfeldt, S.
author_facet Buchmuller, W.
Covi, L.
Emmanuel-Costa, D.
Wiesenfeldt, S.
author_sort Buchmuller, W.
collection CERN
description We study proton decay in a supersymmetric {\sf SO(10)} gauge theory in six dimensions compactified on an orbifold. The dimension-5 proton decay operators are forbidden by R-symmetry, whereas the dimension-6 operators are enhanced due to the presence of KK towers. Three sequential quark-lepton families are localised at the three orbifold fixed points, where {\sf SO(10)} is broken to its three GUT subgroups. The physical quarks and leptons are mixtures of these brane states and additional bulk zero modes. This leads to a characteristic pattern of branching ratios in proton decay, in particular the suppression of the $p\to \m^+K^0$ mode.
id cern-768627
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
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spelling cern-7686272023-03-14T18:49:32Zdoi:10.1088/1126-6708/2004/09/004http://cds.cern.ch/record/768627engBuchmuller, W.Covi, L.Emmanuel-Costa, D.Wiesenfeldt, S.Flavour structure and proton decay in 6D orbifold GUTsParticle Physics - PhenomenologyWe study proton decay in a supersymmetric {\sf SO(10)} gauge theory in six dimensions compactified on an orbifold. The dimension-5 proton decay operators are forbidden by R-symmetry, whereas the dimension-6 operators are enhanced due to the presence of KK towers. Three sequential quark-lepton families are localised at the three orbifold fixed points, where {\sf SO(10)} is broken to its three GUT subgroups. The physical quarks and leptons are mixtures of these brane states and additional bulk zero modes. This leads to a characteristic pattern of branching ratios in proton decay, in particular the suppression of the $p\to \m^+K^0$ mode.We study proton decay in a supersymmetric {\sf SO(10)} gauge theory in six dimensions compactified on an orbifold. The dimension-5 proton decay operators are forbidden by R-symmetry, whereas the dimension-6 operators are enhanced due to the presence of KK towers. Three sequential quark-lepton families are localised at the three orbifold fixed points, where {\sf SO(10)} is broken to its three GUT subgroups. The physical quarks and leptons are mixtures of these brane states and additional bulk zero modes. This leads to a characteristic pattern of branching ratios in proton decay, in particular the suppression of the $p\to \m^+K^0$ mode.hep-ph/0407070CERN-PH-TH-2004-043DESY-03-202CERN-PH-TH-2004-043DESY-03-202DESY-2003-202oai:cds.cern.ch:7686272004-07-06
spellingShingle Particle Physics - Phenomenology
Buchmuller, W.
Covi, L.
Emmanuel-Costa, D.
Wiesenfeldt, S.
Flavour structure and proton decay in 6D orbifold GUTs
title Flavour structure and proton decay in 6D orbifold GUTs
title_full Flavour structure and proton decay in 6D orbifold GUTs
title_fullStr Flavour structure and proton decay in 6D orbifold GUTs
title_full_unstemmed Flavour structure and proton decay in 6D orbifold GUTs
title_short Flavour structure and proton decay in 6D orbifold GUTs
title_sort flavour structure and proton decay in 6d orbifold guts
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1088/1126-6708/2004/09/004
http://cds.cern.ch/record/768627
work_keys_str_mv AT buchmullerw flavourstructureandprotondecayin6dorbifoldguts
AT covil flavourstructureandprotondecayin6dorbifoldguts
AT emmanuelcostad flavourstructureandprotondecayin6dorbifoldguts
AT wiesenfeldts flavourstructureandprotondecayin6dorbifoldguts

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