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

Fabio Siringo·Luca Marotta
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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.

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Fabio Siringo, Luca Marotta. 2006-12-14. Self-consistent variational approach to the minimal left-right symmetric model of electroweak interactions. https://doi.org/10.1103/physrevd.74.115001

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