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arXiv · 1609.04764

Spontaneous CP violation in the 2HDM: physical conditions and the alignment limit

B. Grzadkowski·O. M. Ogreid·P. Osland
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Abstract

For the general Two-Higgs-Doublet model, we present conditions for having spontaneous CP violation, in terms of physical masses and couplings. These relations involve the charged-Higgs mass, its cubic couplings with neutral scalars and quartic coupling, and become particularly simple in the alignment limit. In the simplified model with softly broken $Z_2$ symmetry, some deviation from alignment is required for spontaneous CP violation to be present.

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B. Grzadkowski, O. M. Ogreid, P. Osland. 2016-09-15. Spontaneous CP violation in the 2HDM: physical conditions and the alignment limit. https://doi.org/10.1103/physrevd.94.115002

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