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arXiv 1507.02668hep-phhep-ex
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MSSM扩张中夸克的色电偶极矩

Chromoelectric Dipole Moments of Quarks in MSSM Extensions

Amin Aboubrahim, Tarek Ibrahim, Pran Nath, Anas Zorik

摘要:

本文分析了MSSM扩展中夸克和中子的色电偶极矩,在MSSM扩展中,物质扇区包含一个额外的夸克和镜像夸克的矢量生成。分析包括从交换的$W$和$Z$玻色子,从交换的电荷和中性中微子和胶子CEDM的贡献。研究了它们对夸克EDM的贡献。研究了MSSM扇区与新扇区之间的类矢量夸克干扰。结果表明,类矢量夸克的加入可以对夸克EDMs进行显著的修正。此外,这种干涉也提供了一个矢量夸克扇区的探测器。这些结果是感兴趣的,因为在未来的测量中子EDM可以看到一个改进到两个数量级以上的目前的实验限制,并提供了一个窗口,新的物理学超越标准模型。

英文摘要:

An analysis is given of the chromoelectric dipole moment of quarks and of the neutron in an MSSM extension where the matter sector contains an extra vectorlike generation of quarks and mirror quarks. The analysis includes contributions to the CEDM from the exchange of the $W$ and the $Z$ bosons, from the exchange of charginos and neutralinos and the gluino. Their contribution to the EDM of quarks is investigated. The interference between the MSSM sector and the new sector with vectorlike quarks is investigated. It is shown that inclusion of the vectorlike quarks can modify the quark EDMs in a significant way. Further, this interference also provides a probe of the vectorlike quark sector. These results are of interest as in the future measurements on the neutron EDM could see an improvement up to two orders of magnitude over the current experimental limits and provide a window to new physics beyond the standard model.

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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