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Running of Low-Energy Neutrino Masses, Mixing Angles and CP Violation

We calculate the running of low-energy neutrino parameters from the bottom up, parameterizing the unknown seesaw parameters in terms of the dominance matrix $R$. We find significant running only if the $R$ matrix is non-trivial and the light-neutrino masses are moderately degenerate. If the light-ne...

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Detalles Bibliográficos
Autores principales: Ellis, Jonathan Richard, Hektor, A, Kadastik, M, Kannike, K, Raidal, M
Lenguaje:eng
Publicado: 2005
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2005.09.056
http://cds.cern.ch/record/841146
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author Ellis, Jonathan Richard
Hektor, A
Kadastik, M
Kannike, K
Raidal, M
author_facet Ellis, Jonathan Richard
Hektor, A
Kadastik, M
Kannike, K
Raidal, M
author_sort Ellis, Jonathan Richard
collection CERN
description We calculate the running of low-energy neutrino parameters from the bottom up, parameterizing the unknown seesaw parameters in terms of the dominance matrix $R$. We find significant running only if the $R$ matrix is non-trivial and the light-neutrino masses are moderately degenerate. If the light-neutrino masses are very hierarchical, the quark-lepton complementarity relation $\theta_c + \theta_{12} = \pi/4$ is quite stable, but $\theta_{13,23}$ may run beyond their likely future experimental errors. The running of the oscillation phase $\delta$ is enhanced by the smallness of $\theta_{13}$, and jumps in the mixing angles occur in cases where the light-neutrino mass eigenstates cross.
id cern-841146
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2005
record_format invenio
spelling cern-8411462019-09-30T06:29:59Zdoi:10.1016/j.physletb.2005.09.056http://cds.cern.ch/record/841146engEllis, Jonathan RichardHektor, AKadastik, MKannike, KRaidal, MRunning of Low-Energy Neutrino Masses, Mixing Angles and CP ViolationParticle Physics - PhenomenologyWe calculate the running of low-energy neutrino parameters from the bottom up, parameterizing the unknown seesaw parameters in terms of the dominance matrix $R$. We find significant running only if the $R$ matrix is non-trivial and the light-neutrino masses are moderately degenerate. If the light-neutrino masses are very hierarchical, the quark-lepton complementarity relation $\theta_c + \theta_{12} = \pi/4$ is quite stable, but $\theta_{13,23}$ may run beyond their likely future experimental errors. The running of the oscillation phase $\delta$ is enhanced by the smallness of $\theta_{13}$, and jumps in the mixing angles occur in cases where the light-neutrino mass eigenstates cross.hep-ph/0506122CERN-PH-TH-2005-089oai:cds.cern.ch:8411462005-06-13
spellingShingle Particle Physics - Phenomenology
Ellis, Jonathan Richard
Hektor, A
Kadastik, M
Kannike, K
Raidal, M
Running of Low-Energy Neutrino Masses, Mixing Angles and CP Violation
title Running of Low-Energy Neutrino Masses, Mixing Angles and CP Violation
title_full Running of Low-Energy Neutrino Masses, Mixing Angles and CP Violation
title_fullStr Running of Low-Energy Neutrino Masses, Mixing Angles and CP Violation
title_full_unstemmed Running of Low-Energy Neutrino Masses, Mixing Angles and CP Violation
title_short Running of Low-Energy Neutrino Masses, Mixing Angles and CP Violation
title_sort running of low-energy neutrino masses, mixing angles and cp violation
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.physletb.2005.09.056
http://cds.cern.ch/record/841146
work_keys_str_mv AT ellisjonathanrichard runningoflowenergyneutrinomassesmixinganglesandcpviolation
AT hektora runningoflowenergyneutrinomassesmixinganglesandcpviolation
AT kadastikm runningoflowenergyneutrinomassesmixinganglesandcpviolation
AT kannikek runningoflowenergyneutrinomassesmixinganglesandcpviolation
AT raidalm runningoflowenergyneutrinomassesmixinganglesandcpviolation