论文标题

CP违反$^{210} $ FR中的效果以及标准模型以外的新物理学的前景

CP violating effects in $^{210}$Fr and prospects for new physics beyond the Standard Model

论文作者

Shitara, Nanako, Yamanaka, Nodoka, Sahoo, Bijaya Kumar, Watanabe, Toshio, Das, Bhanu Pratap

论文摘要

我们报告了$^{210} $ f的电偶极矩(EDM)的理论结果,该结果来自电子与内部电场的EDM与原子中的内部电场的相互作用以及标量钉脉冲的电子 - 核核相互作用;在该原子中,CP违规的两个主要来源。采用相对论耦合群集理论,我们评估了这两个CP违反相互作用的增强因子,其准确性约为3%,并分析了多体效应的贡献。这两个数量与$^{210} $ fr EDM实验的预计灵敏度相结合提供了对标准模型以外的新物理学的约束。尤其是,我们证明它们的精确值对于说明底部夸克的效果在模型中的效果是必要的,在这种模型中,Higgs部门通过非标准的Yukawa相互作用(例如Twip-higgs doublet模型)增强。

We report theoretical results of the electric dipole moment (EDM) of $^{210}$Fr which arises from the interaction of the EDM of an electron with the internal electric field in an atom and the scalar-pseudoscalar electron-nucleus interaction; the two dominant sources of CP violation in this atom. Employing the relativistic coupled-cluster theory, we evaluate the enhancement factors for these two CP violating interactions to an accuracy of about 3% and analyze the contributions of the many-body effects. These two quantities in combination with the projected sensitivity of the $^{210}$Fr EDM experiment provide constraints on new physics beyond the Standard Model. Particularly, we demonstrate that their precise values are necessary to account for the effect of the bottom quark in models in which the Higgs sector is augmented by nonstandard Yukawa interactions such as the two-Higgs doublet model.

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