The problem of mass generation is addressed by a Gaussian variational method for the minimal left-right symmetric model of electroweak interactions. Without any scalar bidoublet, the Gaussian effective potential is shown to have a minimum for a broken symmetry vacuum with a finite expectation value for both the scalar Higgs doublets. The symmetry is broken by the fermionic coupling that destabilizes the symmetric vacuum, yielding a self-consistent fermionic mass. In this framework a light Higgs is only compatible with the existence of a new high energy mass scale below 2 TeV.
Siringo, F., & Marotta, L. (2006). Self-consistent variational approach to the minimal left-right symmetric model of electroweak interactions. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 74, 115001-1-115001-5 [10.1103/PhysRevD.74.115001].
Data di pubblicazione: | 2006 | |
Titolo: | Self-consistent variational approach to the minimal left-right symmetric model of electroweak interactions | |
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Citazione: | Siringo, F., & Marotta, L. (2006). Self-consistent variational approach to the minimal left-right symmetric model of electroweak interactions. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 74, 115001-1-115001-5 [10.1103/PhysRevD.74.115001]. | |
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Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevD.74.115001 | |
Appare nelle tipologie: | 1.01 Articolo in rivista |