论文标题

具有重型复合轴的复合希格斯

A Composite Higgs with a Heavy Composite Axion

论文作者

Gherghetta, Tony, Nguyen, Minh D.

论文摘要

我们考虑与复合希格斯模型相关的强大动力学,该模型同时产生动力轴并解决了强大的CP问题。强大的动力学来自新的$ sp $或$ su(4)$ hyperColor量规组,其中包含QCD有色超级效果,这些量度限制在高度上。标准型号Electroweak仪表组和扩大的颜色组,$ su(n+3)\ times su(n)'$弱化了超颜色全局对称性。当形成Hyperfermion冷凝物时,它们不仅会导致$ SU(5)/SO(5)$ Composite Higgs型号,而且还会自发将放大的颜色组分解为$ SU(3)_C \ Times SU(N)_D $。在较低的能量下,$ su(n)_d $组限制,产生两个动态轴,消除了所有CP违规。此外,来自$ su(n)$组的小instantons可以增强轴突质量,从而在对撞机实验中发现可以检测到的TEV量表轴质量。我们的模型提供了一种用动态轴统一复合希格的方法,而无需引入新的基本标量场,同时还扩展了解决强CP问题的轴质量范围。

We consider the strong dynamics associated with a composite Higgs model that simultaneously produces dynamical axions and solves the strong CP problem. The strong dynamics arises from a new $Sp$ or $SU(4)$ hypercolor gauge group containing QCD colored hyperfermions that confines at a high scale. The hypercolor global symmetry is weakly gauged by the Standard Model electroweak gauge group and an enlarged color group, $SU(N+3) \times SU(N)'$. When hyperfermion condensates form, they not only lead to an $SU(5)/SO(5)$ composite Higgs model but also spontaneously break the enlarged color group to $SU(3)_c \times SU(N)_D$. At lower energies, the $SU(N)_D$ group confines, producing two dynamical axions that eliminates all CP violation. Furthermore, small instantons from the $SU(N)'$ group can enhance the axion mass, giving rise to TeV scale axion masses that can be detected at collider experiments. Our model provides a way to unify the composite Higgs with dynamical axions, without introducing new elementary scalar fields, while also extending the range of axion masses that addresses the strong CP problem.

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