轻子复合性机制的检验
Testing the mechanism of lepton compositness
摘要：
严格的规范不变性要求物理左手轻子实际上是标准模型中基本左手轻子偶和希格斯场的束缚态。尽管如此，它们的行为却几乎像纯基本粒子，这可以用弗罗利希-莫尔基奥-斯特罗基机制来解释。利用格点规范理论，我们对费米子验证了这种机制。然而，由于目前在晶格上无法获得非阿贝尔规范的外尔费米子，一个包含矢量轻子但遵守所有其他相关对称性的模型已经被模拟出来。
英文摘要：
Strict gauge invariance requires that physical left-handed leptons are actually bound states of the elementary left-handed lepton doublet and the Higgs field within the standard model. That they nonetheless behave almost like pure elementary particles is explained by the Fröhlich-Morchio-Strocchi mechanism. Using lattice gauge theory, we test and confirm this mechanism for fermions. Though, due to the current inaccessibility of non-Abelian gauged Weyl fermions on the lattice, a model which contains vectorial leptons but which obeys all other relevant symmetries has been simulated.
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