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arXiv 2409.09110hep-phhep-th
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相交 D6 膜超对称 Pati-Salam 景观中的费米子质量与混合

Fermion masses and mixings in the supersymmetric Pati-Salam landscape from Intersecting D6-Branes

Mudassar Sabir, Adeel Mansha, Tianjun Li, Zhi-Wei Wang

AI总结:

本文分析相交 D6 膜 Pati-Salam 景观中 33 个模型的粒子谱与 Yukawa 相互作用,发现 17 个可实现费米子质量与混合,其中 12-Higgs 模型自然给出符合实验与沼泽地约束的正常序 Dirac 中微子质量。

摘要:

最近,人们已完整枚举了在 IIA 型 T⁶/(Z₂×Z₂) 定向流形上由相交 D6 膜得到的三族超对称 Pati-Salam 模型景观,其中包含 33 个在弦标度下具有不同规范耦合关系的独立模型。本文通过给出详细粒子谱并分析可能的 3 点和 4 点 Yukawa 相互作用,研究所有这些模型的唯象学,以容纳全部标准模型费米子质量与混合。我们发现,仅有 17 个模型包含可行的 Yukawa 结构,可解释夸克质量、带电轻子质量、中微子质量、夸克混合及轻子混合。这些可行模型分为四类,即一个具有 3 个来自体区的 Higgs 场的模型,以及 16 个具有来自 N=2 部分的 6、9 或 12 个 Higgs 的模型。随着 Higgs 对数量增加,模型表现依次改善。值得注意的是,具有 12 个 Higgs 的模型类别自然预言了正常排序的 Dirac 型中微子质量,并同时符合实验约束和沼泽地计划的界限。

英文摘要:

Recently, the complete landscape of three-family supersymmetric Pati-Salam models from intersecting D6-branes on a type IIA $\mathbb{T}^6/(\mathbb{Z}_2\times \mathbb{Z}_2)$ orientifold has been enumerated consisting of 33 independent models with distinct gauge coupling relations at the string scale. Here, we study the phenomenology of all such models by providing the detailed particle spectra and the analysis of the possible 3-point and the 4-point Yukawa interactions in order to accommodate all standard-model fermion masses and mixings. We find that only 17 models contain viable Yukawa textures to explain quarks masses, charged-leptons' masses, neutrino-masses, quarks' mixings and leptons' mixings. These viable models split into four classes, viz. a single model with 3 Higgs fields from the bulk and sixteen models with either 6, 9 or 12 Higgs from the $\mathcal{N}=2$ sector. The models perform successively better with the increasing number of Higgs pairs. Remarkably, the class of models with 12 Higgs naturally predicts the Dirac-type neutrino masses in normal ordering consistent with both the experimental constraints as well as the bounds from the swampland program.

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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