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arXiv 1003.0549hep-th
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奇怪的惊喜

Stringy surprises

Michael Ratz

摘要:

将MSSM嵌入弦论有许多可能性。这些程序描述了一种基于更高维度的大统一的方法。这使人们能够获得全球弦导出模型与精确的MSSM频谱和内置的规范耦合统一。事实证明,这些模型表现出各种吸引人的功能,如(i)跷跷板抑制中微子质量,(ii)一阶顶部汤川耦合和潜在的现实味结构,(iii)非阿贝尔离散味对称放松超对称味问题,(iv)一个隐藏的部门,其规模的强动力学是一致的TeV规模的软质量,和(v)解决μ问题。这些特征的关键和意想不到的特性是,它们不是手动输入的,也不是明确搜索的,而是自动发生的,因此可能被视为“字符串惊喜”。

英文摘要:

There are many conceivable possibilities of embedding the MSSM in string theory. These proceedings describe an approach which is based on grand unification in higher dimensions. This allows one to obtain global string-derived models with the exact MSSM spectrum and built-in gauge coupling unification. It turns out that these models exhibit various appealing features such as (i) see-saw suppressed neutrino masses, (ii) an order one top Yukawa coupling and potentially realistic flavor structures, (iii) non-Abelian discrete flavor symmetries relaxing the supersymmetric flavor problem, (iv) a hidden sector whose scale of strong dynamics is consistent with TeV-scale soft masses, and (v) a solution to the mu-problem. The crucial and unexpected property of these features is that they are not put in by hand nor explicitly searched for but happen to occur automatically, and might thus be viewed as "stringy surprises".

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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