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Título:
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Higgs effective potential in the littlest Higgs model at the one-loop level
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Autores:
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Dobado González, Antonio ;
Tabares Cheluci, Lourdes ;
Peñaranda , Siannah
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Society, 2007-04
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física
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Tipo = Artículo
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Resumen:
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In this work we compute the contributions to the Higgs effective potential coming from the fermion and gauge boson sectors at the one-loop level in the context of the SU(5)/SO(5) littlest Higgs (LH) model using a cutoff Lambda and including all finite parts. We consider both, the (SU(2) x U(1))(1) x (SU(2) x U(1))(2) and the (SU(2) x U(1))(1) x (SU(2) x U(1)) gauge group versions of the LH model. We also show that the Goldstone bosons present in the model do not contribute to the effective potential at the one-loop level. Finally, by neglecting the contribution of higher dimensional operators, we discuss the restrictions that the new one-loop contributions set on the parameter space of the LH model and the need to include higher loop corrections to the Higgs potential.
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En línea:
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https://eprints.ucm.es/id/eprint/21931/1/DobadoAntonio28libre.pdf
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