Cp Violation In Models With Two And Three Scalar Doublets
(1985) Nuclear Physics, Section B — Vol. 259, n° 2-3, p. 306-330 (1985)
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- Authors
- Abstract
- We reanalyze the two- and three-scalar (Higgs) doublet models with spontaneous CP violation. We show that the two-Higgs doublet model of T.D. Lee can be made consistent with the recent measurements of ε′/ε provided the ΔS = 2 amplitudes receive important contributions from neutral Higgs exchanges. The sign of ε′/ε is positive in this model. The main part of our paper constitutes a new calculation of CP violation in the three-Higgs doublet model with natural flavor conservation. We find in contrast to previous analyses that this model is consistent with the experimental value of ε′/ε provided an interesting hierarchy among the vacuum expectation values present in the model is assumed. ε′/ε can have both signs in this model and is typically ±0.005. Simultaneously ΔM(K1 − Ks), the ε-parameter and the electric dipole moment of the neutron are consistent with the experimental data.
- Affiliations
Munich, Max Planck Inst.
Citations
Branco, G. C., Buras, A. J., & Gérard, J.-M. (1985). Cp Violation In Models With Two And Three Scalar Doublets. Nuclear Physics, Section B, 259(2-3), 306-330. https://doi.org/10.1016/0550-3213(85)90638-8 (Original work published 1985)