String Inspired Z' Model With Stable Proton and Light Neutrino Masses

Grand unification, and its incarnation in the form of heterotic-string unification, are the only extensions of the Standard Model that are rooted in the structure of the Standard Model itself. In this context, it was proposed that the exclusiveness of proton stability and suppression of neutrino mas...

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Detalles Bibliográficos
Autores principales: Faraggi, Alon E., Thormeier, Marc
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0550-3213(01)00646-0
http://cds.cern.ch/record/520522
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author Faraggi, Alon E.
Thormeier, Marc
author_facet Faraggi, Alon E.
Thormeier, Marc
author_sort Faraggi, Alon E.
collection CERN
description Grand unification, and its incarnation in the form of heterotic-string unification, are the only extensions of the Standard Model that are rooted in the structure of the Standard Model itself. In this context, it was proposed that the exclusiveness of proton stability and suppression of neutrino masses necessitates the existence of an additional U(1)_Z' symmetry, which is of non-GUT origin and remains unbroken down to intermediate, or low, energies. Realistic string models frequently give rise to non-GUT U(1) symmetries, which arise from the flavor symmetries in the models. In this paper we demonstrate in a string-inspired toy model that such a stringy Z' can indeed guarantee proton longevity and viable phenomenology in the neutrino sector, as well as in the quark and charged lepton sectors.
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spelling cern-5205222023-03-14T18:45:38Zdoi:10.1016/S0550-3213(01)00646-0http://cds.cern.ch/record/520522engFaraggi, Alon E.Thormeier, MarcString Inspired Z' Model With Stable Proton and Light Neutrino MassesParticle Physics - PhenomenologyGrand unification, and its incarnation in the form of heterotic-string unification, are the only extensions of the Standard Model that are rooted in the structure of the Standard Model itself. In this context, it was proposed that the exclusiveness of proton stability and suppression of neutrino masses necessitates the existence of an additional U(1)_Z' symmetry, which is of non-GUT origin and remains unbroken down to intermediate, or low, energies. Realistic string models frequently give rise to non-GUT U(1) symmetries, which arise from the flavor symmetries in the models. In this paper we demonstrate in a string-inspired toy model that such a stringy Z' can indeed guarantee proton longevity and viable phenomenology in the neutrino sector, as well as in the quark and charged lepton sectors.Grand unification, and its incarnation in the form of heterotic-string unification, are the only extensions of the Standard Model that are rooted in the structure of the Standard Model itself. In this context, it was proposed that the exclusiveness of proton stability and suppression of neutrino masses necessitates the existence of an additional U(1)_Z' symmetry, which is of non-GUT origin and remains unbroken down to intermediate, or low, energies. Realistic string models frequently give rise to non-GUT U(1) symmetries, which arise from the flavor symmetries in the models. In this paper we demonstrate in a string-inspired toy model that such a stringy Z' can indeed guarantee proton longevity and viable phenomenology in the neutrino sector, as well as in the quark and charged lepton sectors.Grand unification, and its incarnation in the form of heterotic-string unification, are the only extensions of the Standard Model that are rooted in the structure of the Standard Model itself. In this context, it was proposed that the exclusiveness of proton stability and suppression of neutrino masses necessitates the existence of an additional U(1)_Z' symmetry, which is of non-GUT origin and remains unbroken down to intermediate, or low, energies. Realistic string models frequently give rise to non-GUT U(1) symmetries, which arise from the flavor symmetries in the models. In this paper we demonstrate in a string-inspired toy model that such a stringy Z' can indeed guarantee proton longevity and viable phenomenology in the neutrino sector, as well as in the quark and charged lepton sectors.Grand unification, and its incarnation in the form of heterotic-string unification, are the only extensions of the Standard Model that are rooted in the structure of the Standard Model itself. In this context, it was proposed that the exclusiveness of proton stability and suppression of neutrino masses necessitates the existence of an additional U(1)_Z' symmetry, which is of non-GUT origin and remains unbroken down to intermediate, or low, energies. Realistic string models frequently give rise to non-GUT U(1) symmetries, which arise from the flavor symmetries in the models. In this paper we demonstrate in a string-inspired toy model that such a stringy Z' can indeed guarantee proton longevity and viable phenomenology in the neutrino sector, as well as in the quark and charged lepton sectors.Grand unification, and its incarnation in the form of heterotic-string unification, are the only extensions of the Standard Model that are rooted in the structure of the Standard Model itself. In this context, it was proposed that the exclusiveness of proton stability and suppression of neutrino masses necessitates the existence of an additional U(1)_Z' symmetry, which is of non-GUT origin and remains unbroken down to intermediate, or low, energies. Realistic string models frequently give rise to non-GUT U(1) symmetries, which arise from the flavor symmetries in the models. In this paper we demonstrate in a string-inspired toy model that such a stringy Z' can indeed guarantee proton longevity and viable phenomenology in the neutrino sector, as well as in the quark and charged lepton sectors.Grand unification and its incarnation in the form of heterotic-string unification, are the only extensions of the standard model that are rooted in the structure of the standard model itself. In this context it was proposed that the exclusiveness of proton stability and suppression of neutrino masses necessitates the existence of an additional U (1) Z ′ symmetry, which is of non-GUT origin and remains unbroken down to intermediate or low energies. Realistic string models frequently give rise to non-GUT U (1) symmetries, which arise from the flavor symmetries in the models. In this paper we demonstrate in a string-inspired toy model that such a stringy Z ′ can indeed guarantee proton longevity and viable phenomenology in the neutrino sector as well as in the quark and charged lepton sectors.hep-ph/0109162OUTP-01-36POUTP-2001-36-Poai:cds.cern.ch:5205222001-09-18
spellingShingle Particle Physics - Phenomenology
Faraggi, Alon E.
Thormeier, Marc
String Inspired Z' Model With Stable Proton and Light Neutrino Masses
title String Inspired Z' Model With Stable Proton and Light Neutrino Masses
title_full String Inspired Z' Model With Stable Proton and Light Neutrino Masses
title_fullStr String Inspired Z' Model With Stable Proton and Light Neutrino Masses
title_full_unstemmed String Inspired Z' Model With Stable Proton and Light Neutrino Masses
title_short String Inspired Z' Model With Stable Proton and Light Neutrino Masses
title_sort string inspired z' model with stable proton and light neutrino masses
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0550-3213(01)00646-0
http://cds.cern.ch/record/520522
work_keys_str_mv AT faraggialone stringinspiredzmodelwithstableprotonandlightneutrinomasses
AT thormeiermarc stringinspiredzmodelwithstableprotonandlightneutrinomasses

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