AI 中文总结
研究具有软破缺广义CP对称性的三希格斯二重态模型，通过构建基变换和数值拟合减少可行模型集，发现该模型能重现夸克质量和混合，22个不等价模型与实验数据兼容，为标准模型扩展及味现象学研究提供框架。
AI 中文摘要
我们研究具有软破缺广义CP（GCP）对称性的三希格斯二重态模型，聚焦汤川耦合部分及其与夸克味数据的兼容性。首先通过构建等价实现的基变换并识别虚假参数，表明先前确定的40个GCP对称模型并非都物理上不同。然后对六个夸克质量和卡比博 - 小林 - 益川矩阵的四个独立参数进行数值拟合，进一步减少可行模型集。与GCP对称的两希格斯二重态情况不同，GCP对称的三希格斯二重态模型能成功重现所有夸克质量和混合。共有22个不等价模型与当前实验数据兼容，并给出了代表性基准点。结果确立了软破缺GCP对称三希格斯二重态模型是标准模型在现象学上可行的扩展，并为其味现象学的进一步研究提供了框架。
英文摘要
We investigate three-Higgs-doublet models with a softly broken generalized CP (GCP) symmetry, focusing on the Yukawa sector and its compatibility with quark flavor data. We first show that the 40 GCP-symmetric models previously identified are not all physically distinct, by constructing the basis transformations relating equivalent realizations and identifying spurious parameters. We then perform numerical fits to the six quark masses and the four independent parameters of the Cabibbo--Kobayashi--Maskawa matrix, further reducing the set of viable models. In contrast to the GCP-symmetric two-Higgs-doublet case, we find that GCP-symmetric three-Higgs-doublet models can successfully reproduce all quark masses and mixings. In total, 22 inequivalent models are compatible with current experimental data, and representative benchmark points are presented. Our results establish softly broken GCP-symmetric three-Higgs-doublet models as phenomenologically viable extensions of the Standard Model and provide a framework for further studies of their flavor phenomenology.
Comments21 pages, 1 Figure in jpg
