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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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Lenguaje: | eng |
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1998
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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 |
record_format | invenio |
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 |