Bariogénesis a través de leptogénesis
By adding right-handed Majorana neutrinos to the standard model, their out of equilibrium decays, which violate lepton number, combined with anomalous electroweak processes, can generate the baryon asymmetry of the Universe. We briey review this model, including the cross-sections which enter Boltzm...
- Autores:
-
Cataño, E
Martínez, R E
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2009
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/73359
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/73359
http://bdigital.unal.edu.co/37834/
- Palabra clave:
- Leptogénesis
baryon asymmetry
Majorana neutrinos
Boltzmann equations
sphalerons.
Leptogénesis
asimetría bariónica
neutrinos de Majorana
ecuaciones de Boltzmann
esfalerones.
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
| Summary: | By adding right-handed Majorana neutrinos to the standard model, their out of equilibrium decays, which violate lepton number, combined with anomalous electroweak processes, can generate the baryon asymmetry of the Universe. We briey review this model, including the cross-sections which enter Boltzmann equations, and find approximate solutions to them. We also establish plausible ranks for the parameters to obtain an asymmetry of the same order of the one observed, YB~10-11. |
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