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: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2009 |
| País: | Colombia |
| Institución: | Universidad Nacional de Colombia |
| Repositorio: | Repositorio UN |
| Idioma: | español |
| 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/ |
| Access Level: | acceso abierto |
| Palabra clave: | Leptogénesis baryon asymmetry Majorana neutrinos Boltzmann equations sphalerons. asimetría bariónica neutrinos de Majorana ecuaciones de Boltzmann esfalerones. |
| Sumario: | 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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