论文标题
CP-ODD Higgs Boson的辐射校正与两个Higgs Doublet模型中的衰减分支比率
Radiative corrections to decay branching ratios of the CP-odd Higgs boson in two Higgs doublet models
论文作者
论文摘要
我们将辐射校正计算为cp-odd higgs boson $ a $ a $ a $的辐射校正，以在两种类型的两种Higgs Doublet模型中，具有柔软破碎的离散$ z_ {2} $对称性。衰减的分支比例以近后的校正顺序评估，以进行电动校正和QCD校正的临时临时订单。我们全面研究了电子校正对衰减率和分支比率的影响。我们发现，辐射校正可以大大修改分支比率，尤其是对于几乎对齐场景中的$ a \ to zh $衰减模式，在该场景中，Smlike Higgs boson $ h $的耦合常数与标准模型中的耦合相结合。我们还显示了$ a $的分支比与Smlike Higgs玻色子耦合的缩放系数之间的相关性，包括高阶校正。此外，我们根据Yukawa相互作用的类型显示了有关衰减模式的特征预测，通过该预测，我们可以在未来的对撞机实验中区分Yukawa相互作用的类型。
We calculate radiative corrections to decay rates of CP-odd Higgs boson $A$ for various decay modes in the four types of two Higgs doublet models with the softly broken discrete $Z_{2}$ symmetry. The decay branching ratios are evaluated at the next-to-leading order for electroweak corrections and the next-to-next-to-leading order for QCD corrections. We comprehensively study the impact of the electroweak corrections on the decay rates and the branching ratios. We find that the radiative corrections can sizably modify the branching ratios, especially for the $A\to Zh$ decay mode in the nearly alignment scenario, where coupling constants of the SM-like Higgs boson $h$ are close to those in the standard model. We also show correlations between the branching ratios of $A$ and the scaling factor of the SM-like Higgs boson coupling including higher-order corrections. In addition, we show characteristic predictions on the decay pattern depending on the types of Yukawa interaction, by which we can discriminate the types of Yukawa interaction in future collider experiments.
