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].

Self-consistent variational approach to the minimal left-right symmetric model of electroweak interactions

MAROTTA, Luca
2006-01-01

Abstract

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].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/65080
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