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arXiv 2101.03702hep-ph
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在未来的轻子对撞机上测试对齐的CP破坏希格斯扇区

Testing aligned CP-violating Higgs sector at future lepton colliders

Shinya Kanemura, Mitsunori Kubota, Kei Yagyu

摘要:

本文讨论了在未来轻子对撞机上,几个相位之间的相消干涉满足电偶极矩数据的情况下,CP破坏相位的可测性。我们考虑了在Higgs势和Yukawa相互作用中具有CP破坏相的一般的双Higgs偶线模型。汤川相互作用项对齐,以避免味道改变中性电流在树的水平。Higgs势也被排列,使得质量为125 GeV的最轻的希格斯玻色子与标准模型(SM)粒子的耦合常数在树水平上与SM的耦合常数相同。我们研究了由额外希格斯玻色子玻色子的产生和衰变引起的τ轻子强子衰变的方位角分布,其中包含CP破坏相的信息。从信号和背景模拟,我们发现,有限CP破坏阶段的情况下,可以区分CP保存一个在未来的轻子对撞机,如国际直线对撞机。

英文摘要:

We discuss the testability of CP-violating phases at future lepton colliders for the scenario which satisfies electric dipole moment data by destructive interferences among several phases. We consider the general but aligned two Higgs doublet model which has the CP-violating phases in the Higgs potential and the Yukawa interaction. The Yukawa interaction terms are aligned to avoid flavor changing neutral currents at tree level. The Higgs potential is also aligned such that the coupling constants of the lightest Higgs boson with the mass of 125 GeV to the Standard Model (SM) particles are the same as those of the SM at tree level. We investigate the azimuthal angle distribution of the hadronic decay of tau leptons arising from production and decay of the extra Higgs bosons, which contains information of the CP-violating phases. From the signal and background simulation, we find that the scenario with finite CP-violating phases can be distinguished from CP conserving one at future lepton colliders like the International Linear Collider.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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