论文标题
复合希格斯模型中的自然顶质质量层次结构
Natural Top-Bottom Mass Hierarchy in Composite Higgs Models
论文作者
论文摘要
我们考虑基于符号育川理论的复合材料两-higgs Doublet模型，具有强烈相互作用的费米子产生顶部质量层次结构。该型号具有单个“通用” higgs-yukawa耦合，$ g $，它用顶部的Quark $ g \ equiv g_t \ sim \ sim \ Mathcal {o}（1）$标识。顶部的质量层次结构是由$ \ mathbb {z} _2 $对称性通过强烈相互作用的费米子对对称性的软破坏而产生的。受限技术效力的矢量样质量之间的质量分裂控制了这一顶部的质量层次结构。该机制可以存在于基于真空错位的多种模型中。为了进行具体性，我们在复合的两-higgs方案中证明了这一点。
We consider composite two-Higgs doublet models based on gauge-Yukawa theories with strongly interacting fermions generating the top-bottom mass hierarchy. The model features a single "universal" Higgs-Yukawa coupling, $ g $, which is identified with the top quark $ g\equiv g_t \sim \mathcal{O}(1) $. The top-bottom mass hierarchy arises by soft breaking of a $ \mathbb{Z}_2 $ symmetry by a condensate of strongly interacting fermions. A mass splitting between vector-like masses of the confined techni-fermions controls this top-bottom mass hierarchy. This mechanism can be present in a variety of models based on vacuum misalignment. For concreteness, we demonstrate it in a composite two-Higgs scheme.
