论文标题
两种Higgs Doublet型号的风味和CP侵入Higgs领域,$ U(1)'$
Flavor and CP-violating Higgs sector in two Higgs doublet models with $U(1)'$
论文作者
论文摘要
我们研究了两个HIGGS DoubleT模型及其显微镜对应物在有效理论中局部$ U(1)'$对称性的作用。首先,在具有$ u(1)'$的两个希格斯双重模型中,我们表明,标量势中的高维操作员违反了与混合质量参数的相互作用的CP对称性,从而导致CP-E-E-E-E-E-E-E-EDD和CP-ODD标量之间的小混合。近年来,由$ b $ - 米森异常的动机,我们将风味的$ u(1)'$作为指定风味结构的基准模型。然后,由于CP侵略性高维操作员,我们在两个环上计算了电子(EEDM)的电偶极矩,并确定了重型希格斯玻色子的质量与从EEDM上的界限的截止量表之间的相关性。我们还评论了对撞机搜索重型希格斯玻色子中CP违规的独立测试的可能性。最后,我们展示了在有效理论中获得的EEDM结果如何用于在部分脱钩或暗扇区中用明显的CP违规来限制微观模型。
We investigate the role of a local $U(1)'$ symmetry for the problem of CP violation in the effective theory for two Higgs doublet models and its microscopic counterparts. First, in two Higgs doublet models with $U(1)'$, we show that the higher-dimensional operators in the scalar potential violate the CP symmetry with an interplay with the mixing mass parameter, giving rise to small mixings between CP-even and CP-odd scalars. Motivated by the $B$-meson anomalies in recent years, we take the flavored $U(1)'$ to be a benchmark model for specifying the flavor structure. Then, we calculate the electric dipole moment of electron (eEDM) at two loops due to the CP-violating higher-dimensional operators and identify the correlation between the masses of heavy Higgs bosons and the cutoff scale from the bound on eEDM. We also comment on the possibility of making an independent test of the CP violation in the collider searches for heavy Higgs bosons. Finally, we show how the obtained eEDM results in the effective theory can be used to constrain microscopic models with an explicit CP violation in the partially decoupled or dark sectors.