The seesaw path to leptonic CP violation

Future experiments such as SHiP and high-intensity $e^+ e^-$ colliders will have a superb sensitivity to heavy Majorana neutrinos with masses below $M_Z$ . We show that the measurement of the mixing to electrons and muons of one such state could establish the existence of CP violating phases in the...

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Detalles Bibliográficos
Autores principales: Caputo, A., Hernandez, P., Kekic, M., López-Pavón, J., Salvado, J.
Lenguaje:eng
Publicado: 2016
Materias:
hep-ph
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-017-4823-8
http://cds.cern.ch/record/2233441
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author Caputo, A.
Hernandez, P.
Kekic, M.
López-Pavón, J.
Salvado, J.
author_facet Caputo, A.
Hernandez, P.
Kekic, M.
López-Pavón, J.
Salvado, J.
author_sort Caputo, A.
collection CERN
description Future experiments such as SHiP and high-intensity $e^+ e^-$ colliders will have a superb sensitivity to heavy Majorana neutrinos with masses below $M_Z$ . We show that the measurement of the mixing to electrons and muons of one such state could establish the existence of CP violating phases in the neutrino mixing matrix, in the context of low-scale seesaw models. We quantify in the minimal model the CP reach of these future experiments, and demonstrate that CP violating phases in the mixing matrix could be established at 5 $\sigma $ CL in a very significant fraction of parameter space.
id cern-2233441
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
record_format invenio
spelling cern-22334412022-08-10T12:33:46Zdoi:10.1140/epjc/s10052-017-4823-8http://cds.cern.ch/record/2233441engCaputo, A.Hernandez, P.Kekic, M.López-Pavón, J.Salvado, J.The seesaw path to leptonic CP violationhep-phParticle Physics - PhenomenologyFuture experiments such as SHiP and high-intensity $e^+ e^-$ colliders will have a superb sensitivity to heavy Majorana neutrinos with masses below $M_Z$ . We show that the measurement of the mixing to electrons and muons of one such state could establish the existence of CP violating phases in the neutrino mixing matrix, in the context of low-scale seesaw models. We quantify in the minimal model the CP reach of these future experiments, and demonstrate that CP violating phases in the mixing matrix could be established at 5 $\sigma $ CL in a very significant fraction of parameter space.Future experiments such as SHiP and high-intensity $e^+ e^-$ colliders will have a superb sensitivity to heavy Majorana neutrinos with masses below $M_Z$. We show that the measurement of the mixing to electrons and muons of one such state could imply the discovery of leptonic CP violation in the context of seesaw models. We quantify in the minimal model the CP discovery potential of these future experiments, and demonstrate that a 5$\sigma$ CL discovery of leptonic CP violation would be possible in a very significant fraction of parameter space.arXiv:1611.05000CERN-TH-2016-238oai:cds.cern.ch:22334412016-11-15
spellingShingle hep-ph
Particle Physics - Phenomenology
Caputo, A.
Hernandez, P.
Kekic, M.
López-Pavón, J.
Salvado, J.
The seesaw path to leptonic CP violation
title The seesaw path to leptonic CP violation
title_full The seesaw path to leptonic CP violation
title_fullStr The seesaw path to leptonic CP violation
title_full_unstemmed The seesaw path to leptonic CP violation
title_short The seesaw path to leptonic CP violation
title_sort seesaw path to leptonic cp violation
topic hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1140/epjc/s10052-017-4823-8
http://cds.cern.ch/record/2233441
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