Higgs Sector of the Minimal Left-Right Symmetric Model
Abstract
We perform an exhaustive analysis of the most general Higgs sector of the minimal left-right symmetric model (MLRM). We find that the CP properties of the vacuum state are connected to the Higgs spectrum: if CP is broken spontaneously, the MLRM does not approach the Standard Model in the limit of a decoupling left-right symmetry breaking scale. Depending on the size of the CP phases scenarios with extra non-decoupling flavor-violating doublet Higgses or very light SU(2) triplet Higgses emerge, both of which are ruled out by phenomenology. For zero CP phases the non-standard Higgses decouple only if a very unnatural fine-tuning condition is fulfilled. We also discuss generalizations to a non-minimal Higgs sector.
Cite
@article{arxiv.hep-ph/0107121,
title = {Higgs Sector of the Minimal Left-Right Symmetric Model},
author = {Gabriela Barenboim and Martin Gorbahn and Ulrich Nierste and Martti Raidal},
journal= {arXiv preprint arXiv:hep-ph/0107121},
year = {2014}
}
Comments
brief discussion of non-minimal Higgs sectors added, journal version