旋量-向量对偶与BSM唯象
Spinor-Vector Duality and BSM Phenomenology
摘要：
在杂种优势弦紧化的世界表构造中观察到旋量-向量对偶（SVD）.最近，它的实现在有效场论的限制弦真空在六，五维已被调查。SVD已被用来构建一个字符串模型，允许一个额外的家庭通用$U(1)$，与标准的$E_6$嵌入其费用，保持不分解到低尺度。额外的$U(1)$电荷的异常抵消要求额外的$U(1)$破缺尺度下存在额外的物质状态，这影响了标准模型参数的精确测量。我讨论了非超对称的斯汀真空和类似于时空超对称映射的“模块化映射”的构造。这种“模映射”让我们得以一窥微扰弦真空整个空间的巨大对称结构。
英文摘要：
Spinor--Vector Duality (SVD) has been observed in worldsheet constructions of heterotic--string compactifications. Recently, its realisation in the effective field theory limit of string vacua in six and five dimensions has been investigated. The SVD has been used to construct a string model that allows for an extra family universal $U(1)$, with the standard $E_6$ embedding of its charges, to remain unbroken down to low scales. Anomaly cancellation of the extra $U(1)$ charges mandates the existence of additional matter states at the extra $U(1)$ breaking scale, which affects precision measurements of Standard Model parameters. I discuss the construction of non-supersymmetric sting vacua and ``modular maps'' akin to the spacetime supersymmetry map. Such ``modular maps'' provide a glimpse into the enormous symmetry structure underlying the entire space of perturbative string vacua that is yet to be uncovered.
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