Neutrino phenomenology in a little higgs model with gauge symmetry $SU(3)_c\otimes SU(4)_L\otimes U(1)_X$
Abstract: We carry out a search for possible mechanisms that explain the smallness of neutrino masses in the context of an anomaly-free Little Higgs model with electroweak gauge symmetry SU (4) L U (1) X. By the introduction of one neutral right-handed neutrino per generation, it is shown that the l...
- Autores:
-
Palacio Cárdenas, Guillermo Alberto
- Tipo de recurso:
- Fecha de publicación:
- 2013
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/11942
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/11942
http://bdigital.unal.edu.co/9532/
- Palabra clave:
- 53 Física / Physics
Neutrino mass
loop calculation
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
| Summary: | Abstract: We carry out a search for possible mechanisms that explain the smallness of neutrino masses in the context of an anomaly-free Little Higgs model with electroweak gauge symmetry SU (4) L U (1) X. By the introduction of one neutral right-handed neutrino per generation, it is shown that the leading order contribution to the lightest neutrino masses comes at the one loop level. The model also leads to small corrections on the Higgs mass, that are negligible in comparison with the one-loop log-divergent contribution coming from the gauge bosons. Our model leads to unsuppressed Yukawa couplings in the neutral leptonic sector, providing an answer for the observable neutrino masses without |
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