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Neutrino Oscillations in Extended Anti-GUT Model

What we call the Anti-GUT model is extended a bit to include also right-handed neutrinos and thus make use of the see-saw mechanism for neutrino masses. This model consists in assigning gauge quantum numbers to the known Weyl fermions and the three see-saw right-handed neutrinos. Each family (genera...

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Autores principales: Froggatt, C.D., Nielsen, Holger Bech, Takanishi, Y.
Lenguaje:eng
Publicado: 2000
Materias:
Acceso en línea:https://dx.doi.org/10.1063/1.1328879
http://cds.cern.ch/record/476998
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author Froggatt, C.D.
Nielsen, Holger Bech
Takanishi, Y.
author_facet Froggatt, C.D.
Nielsen, Holger Bech
Takanishi, Y.
author_sort Froggatt, C.D.
collection CERN
description What we call the Anti-GUT model is extended a bit to include also right-handed neutrinos and thus make use of the see-saw mechanism for neutrino masses. This model consists in assigning gauge quantum numbers to the known Weyl fermions and the three see-saw right-handed neutrinos. Each family (generation) is given its own Standard Model gauge fields and a gauge field coupled to the $B-L$ quantum number for that family alone. Further we assign a rather limited number of Higgs fields, so as to break these gauge groups down to the Standard Model gauge group and to fit, w.r.t. order of magnitude, the spectra and mixing angles of the quarks and leptons. We find a rather good fit, which for neutrino oscillations favours the small mixing angle MSW solution, although the mixing angle predicted is closest to the upper side of the uncertainty range for the measured solar neutrino mixing angle. An idea for making a ``finetuning''-principle to ``explain'' the large ratios found empirically in physics, and answer such questions as ``why is the weak scale low compared to the Planck scale?'', is proposed. A further very speculative extension is supposed to ``explain'' why we have three families.
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spelling cern-4769982023-03-14T17:03:31Zdoi:10.1063/1.1328879http://cds.cern.ch/record/476998engFroggatt, C.D.Nielsen, Holger BechTakanishi, Y.Neutrino Oscillations in Extended Anti-GUT ModelParticle Physics - PhenomenologyWhat we call the Anti-GUT model is extended a bit to include also right-handed neutrinos and thus make use of the see-saw mechanism for neutrino masses. This model consists in assigning gauge quantum numbers to the known Weyl fermions and the three see-saw right-handed neutrinos. Each family (generation) is given its own Standard Model gauge fields and a gauge field coupled to the $B-L$ quantum number for that family alone. Further we assign a rather limited number of Higgs fields, so as to break these gauge groups down to the Standard Model gauge group and to fit, w.r.t. order of magnitude, the spectra and mixing angles of the quarks and leptons. We find a rather good fit, which for neutrino oscillations favours the small mixing angle MSW solution, although the mixing angle predicted is closest to the upper side of the uncertainty range for the measured solar neutrino mixing angle. An idea for making a ``finetuning''-principle to ``explain'' the large ratios found empirically in physics, and answer such questions as ``why is the weak scale low compared to the Planck scale?'', is proposed. A further very speculative extension is supposed to ``explain'' why we have three families.What we call the Anti-GUT model is extended a bit to include also right-handed neutrinos and thus make use of the see-saw mechanism for neutrino masses. This model consists in assigning gauge quantum numbers to the known Weyl fermions and the three see-saw right-handed neutrinos. Each family (generation) is given its own Standard Model gauge fields and a gauge field coupled to the $B-L$ quantum number for that family alone. Further we assign a rather limited number of Higgs fields, so as to break these gauge groups down to the Standard Model gauge group and to fit, w.r.t. order of magnitude, the spectra and mixing angles of the quarks and leptons. We find a rather good fit, which for neutrino oscillations favours the small mixing angle MSW solution, although the mixing angle predicted is closest to the upper side of the uncertainty range for the measured solar neutrino mixing angle. An idea for making a ``finetuning''-principle to ``explain'' the large ratios found empirically in physics, and answer such questions as ``why is the weak scale low compared to the Planck scale?'', is proposed. A further very speculative extension is supposed to ``explain'' why we have three families.What we call the Anti-GUT model is extended a bit to include also right-handed neutrinos and thus make use of the see-saw mechanism for neutrino masses. This model consists in assigning gauge quantum numbers to the known Weyl fermions and the three see-saw right-handed neutrinos. Each family (generation) is given its own Standard Model gauge fields and a gauge field coupled to the $B-L$ quantum number for that family alone. Further we assign a rather limited number of Higgs fields, so as to break these gauge groups down to the Standard Model gauge group and to fit, w.r.t. order of magnitude, the spectra and mixing angles of the quarks and leptons. We find a rather good fit, which for neutrino oscillations favours the small mixing angle MSW solution, although the mixing angle predicted is closest to the upper side of the uncertainty range for the measured solar neutrino mixing angle. An idea for making a ``finetuning''-principle to ``explain'' the large ratios found empirically in physics, and answer such questions as ``why is the weak scale low compared to the Planck scale?'', is proposed. A further very speculative extension is supposed to ``explain'' why we have three families.What we call the Anti-GUT model is extended a bit to include also right handed neutrinos and thus make use of the see-saw mechanism for neutrino masses. This model consists in assigning gauge quantum numbers to the known Weyl fermions and the three see-saw right handed neutrinos. Each family (generation) is given its own Standard Model gauge fields and a gauged field coupled to the B−L quantum number for that family alone. Further we assign a rather limited number of Higgs fields, so as to break these gauge groups down to the Standard Model gauge group and to fit w.r.t. order of magnitude the spectra and mixing angles of the quarks and leptons. We find a rather good fit, which for neutrino oscillations favor the small mixing angle MSW solution, although the mixing angle predicted is closest to the upper side of the uncertainty range for the measured solar neutrino mixing angle. An idea to make a “finetuning”-principle to “explain” the large ratios found empirically in physics such as “why is the weak scale low compared to the Planck scale?” is proposed (solving a hierarchy problem related problem). Some speculative further extension is supposed to “explain” that we have three families.hep-ph/0011168GUTPA-00-11-03GUTPA-2000-11-03oai:cds.cern.ch:4769982000-11-13
spellingShingle Particle Physics - Phenomenology
Froggatt, C.D.
Nielsen, Holger Bech
Takanishi, Y.
Neutrino Oscillations in Extended Anti-GUT Model
title Neutrino Oscillations in Extended Anti-GUT Model
title_full Neutrino Oscillations in Extended Anti-GUT Model
title_fullStr Neutrino Oscillations in Extended Anti-GUT Model
title_full_unstemmed Neutrino Oscillations in Extended Anti-GUT Model
title_short Neutrino Oscillations in Extended Anti-GUT Model
title_sort neutrino oscillations in extended anti-gut model
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1063/1.1328879
http://cds.cern.ch/record/476998
work_keys_str_mv AT froggattcd neutrinooscillationsinextendedantigutmodel
AT nielsenholgerbech neutrinooscillationsinextendedantigutmodel
AT takanishiy neutrinooscillationsinextendedantigutmodel