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arXiv 2111.09397hep-phhep-ex
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色八重标量的电偶极矩

Electric dipole moments from colour-octet scalars

Hector Gisbert, Víctor Miralles, Joan Ruiz-Vidal

摘要:

我们提出的贡献,电偶极矩(EDM)诱导的汤川耦合的一个额外的电弱双重色八隅标量。一个循环图和增强的高阶效应从Barr-Zee图计算夸克(色)EDM,随着两个循环的贡献温伯格运营商。使用严格的实验上限的中子EDM,该模型的参数空间的约束条件。

英文摘要:

We present the contributions to electric dipole moments (EDMs) induced by the Yukawa couplings of an additional electroweak doublet of colour-octet scalars. The full set of one-loop diagrams and the enhanced higher-order effects from Barr-Zee diagrams are computed for the quark (chromo-)EDM, along with the two-loop contributions to the Weinberg operator. Using the stringent experimental upper limits on the neutron EDM, constraints on the parameter space of this model are derived.

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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