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Symmetries of the 2HDM: an invariant formulation and consequences
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Symmetries of the 2HDM: an invariant formulation and consequences
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Symmetries of the Two-Higgs-Doublet Model (2HDM) potential that can be extended to the whole Lagrangian, i.e. the CP-symmetries CP1, CP2, CP3 and the Higgs-family symmetries Z2, U(1) and SO(3) are discussed. Sufficient and necessary conditions in terms of constraints on masses and physical couplings for the potential to respect each of these symmetries are found. Each symmetry can be realized through several alternative cases, each case being a set of relations among physical parameters. We will show that some of those relations are invariant under the renormalization group, but others are not. The cases corresponding to each symmetry group are illustrated by analyzing the interplay between the potential and the vacuum expectation values.
Forward citations
Cited by 2 Pith papers
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CP violation in H^\pm \to W^\pm Z: A physical approach for the 2HDM
H±→W±Z develops a one-loop CP-violating charge asymmetry in the 2HDM from internal bosonic and fermionic loop interferences, with the purely bosonic part vanishing in the alignment limit when the extra scalars are heavy.
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Systematic analysis of 3HDM symmetries
A systematic catalogue of realisable Higgs-family, general-CP, and GOOFy/T-GOOFy symmetries in three-Higgs-doublet models, with new invariant potentials and a corrected U(1)◦V4 group structure.
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