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.
|Data di pubblicazione:||2006|
|Titolo:||Self-consistent variational approach to the minimal left-right symmetric model of electroweak interactions|
|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.|
|Digital Object Identifier (DOI):||10.1103/PhysRevD.74.115001|
|Appare nelle tipologie:||1.01 Articolo in rivista|