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arXiv 1609.04764hep-ph
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2 HDM中的自发性CP破坏:物理条件和对齐限制

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

B. Grzadkowski, O. M. Ogreid, P. Osland

摘要:

对于一般的Two-Higgs-Doublet模型,我们给出了产生自发CP破坏的物理质量和耦合条件。这些关系包括带电希格斯粒子的质量,它与中性标量的立方耦合和四次耦合,在排列极限下变得特别简单。在$Z_2$对称性软破缺的简化模型中,自发的CP破坏需要一定的对齐偏差。

英文摘要:

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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