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

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 alignmen...

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Published in:Physical review. D 2016-12, Vol.94 (11)
Main Authors: Grzadkowski, B, Ogreid, O M, Osland, P
Format: Article
Language:English
Subjects:
Alignment
Couplings
CP violation
Matter & antimatter
Scalars
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Ogreid, O M
Osland, P
description 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 Z2 symmetry, some deviation from alignment is required for spontaneous CP violation to be present.
doi_str_mv 10.1103/PhysRevD.94.115002
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subjects Alignment
Couplings
CP violation
Matter & antimatter
Scalars
title Spontaneous CP violation in the 2HDM: Physical conditions and the alignment limit
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