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Electroweak Baryon Number Violation and Constraints on Left-handed Majorana Neutrino Masses

During a large period of time, the anomalous baryon number violating interactions are in equilibrium, when the $(B+L)$ asymmetry is washed out. If there is any lepton number violation during this period, that will also erase the $(B-L)$ asymmetry. As a result, survival of the baryon asymmetry of the...

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Autor principal: Sarkar, U
Lenguaje:eng
Publicado: 1998
Materias:
Acceso en línea:http://cds.cern.ch/record/363737
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author Sarkar, U
author_facet Sarkar, U
author_sort Sarkar, U
collection CERN
description During a large period of time, the anomalous baryon number violating interactions are in equilibrium, when the $(B+L)$ asymmetry is washed out. If there is any lepton number violation during this period, that will also erase the $(B-L)$ asymmetry. As a result, survival of the baryon asymmetry of the universe pose strong constraints on lepton number violating interactions. We review here the constraints on the left-handed Majorana neutrino masses arising from this survival requirement of the baryon asymmetry of the universe. We then briefly review models of leptogenesis, where lepton number violation is used to generate a baryon asymmetry of the universe and hence the constraints on the Majorana neutrino mass is relaxed.
id cern-363737
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
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spelling cern-3637372019-09-30T06:29:59Zhttp://cds.cern.ch/record/363737engSarkar, UElectroweak Baryon Number Violation and Constraints on Left-handed Majorana Neutrino MassesParticle Physics - PhenomenologyDuring a large period of time, the anomalous baryon number violating interactions are in equilibrium, when the $(B+L)$ asymmetry is washed out. If there is any lepton number violation during this period, that will also erase the $(B-L)$ asymmetry. As a result, survival of the baryon asymmetry of the universe pose strong constraints on lepton number violating interactions. We review here the constraints on the left-handed Majorana neutrino masses arising from this survival requirement of the baryon asymmetry of the universe. We then briefly review models of leptogenesis, where lepton number violation is used to generate a baryon asymmetry of the universe and hence the constraints on the Majorana neutrino mass is relaxed.hep-ph/9809209oai:cds.cern.ch:3637371998-09-02
spellingShingle Particle Physics - Phenomenology
Sarkar, U
Electroweak Baryon Number Violation and Constraints on Left-handed Majorana Neutrino Masses
title Electroweak Baryon Number Violation and Constraints on Left-handed Majorana Neutrino Masses
title_full Electroweak Baryon Number Violation and Constraints on Left-handed Majorana Neutrino Masses
title_fullStr Electroweak Baryon Number Violation and Constraints on Left-handed Majorana Neutrino Masses
title_full_unstemmed Electroweak Baryon Number Violation and Constraints on Left-handed Majorana Neutrino Masses
title_short Electroweak Baryon Number Violation and Constraints on Left-handed Majorana Neutrino Masses
title_sort electroweak baryon number violation and constraints on left-handed majorana neutrino masses
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/363737
work_keys_str_mv AT sarkaru electroweakbaryonnumberviolationandconstraintsonlefthandedmajorananeutrinomasses