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arXiv 2202.07048hep-thhep-ph
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从相交D6-branes看超对称Pati-Salam模型中的超对称破缺软项、费米子质量和混合

The Supersymmetry Breaking Soft Terms, and Fermion Masses and Mixings in the Supersymmetric Pati-Salam Model from Intersecting D6-branes

Mudassar Sabir, Tianjun Li, Adeel Mansha, Xiao-Chuan Wang

摘要:

最近在$\mathbf{T}^6/(\mathbb{Z}_2\times \mathbb{Z}_2)$上的IIA型定向折叠中构造了一个缠绕数为5的超对称Pati-Salam模型.特别地,由于来自$\mathcal{N}=2$扇区的中间尺度矢量状粒子,可以实现弦尺度规范耦合统一。我们计算了超对称破缺软项,并研究了标准模型(SM)的费米子质量和混合。在$\mathcal{N}=2$区有9对Higgs二重态。有趣的是,我们可以用三点和四点汤川相互作用解释SM夸克质量和混合,以及带电轻子质量。此外,由于我们发现在以前的研究中有一个错别字,我们计算了以前的规范耦合统一模型中的超对称破缺软项。

英文摘要:

A supersymmetric Pati-Salam model with wrapping number equal to 5 has been constructed in Type IIA orientifolds on $\mathbf{T}^6/(\mathbb{Z}_2\times \mathbb{Z}_2)$ with intersecting D6-branes recently. In particular, the string-scale gauge coupling unification can be achieved due to the intermediate-scale vector-like particles from $\mathcal{N}=2$ sector. We calculate the supersymmetry breaking soft terms, and study the Standard Model (SM) fermion masses and mixings. There are nine pairs of Higgs doublets from $\mathcal{N}=2$ sector. Interestingly, we can explain the SM quark masses and mixings, as well as the charged leptons masses from three point and four-point Yukawa interactions. Moreover, we calculate the supersymmetry breaking soft terms in a previous model with gauge coupling unification since we find a typo in the previous study.

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