Non-perturbative dynamics and compositeness

标准模型中的电弱对称性破缺的根本原因是粒子物理学中最迫切需要解决的问题之一。复合动力学是提供这种机制的主要候选者。在这个框架中，希格斯玻色子是一种新的强相互作用的复合粒子，其质量相对于后者的能量标度通过全局对称性的自发破缺而保持较轻。Sp（2N）规范理论已经被提出作为模型，提供与当前实验数据兼容的希格斯复合性的实现。希格斯复合性的理论方法需要非微扰方法。在这个项目中，观察到的Sp（2N）规范理论将进行数值研究与Monte Carlo模拟相关的格子离散理论。提取的可观测量将用于通知现象学模型。

The fundamental origin of electroweak symmetry breaking in the Standard Model is one of the most urgent problems in Particle Physics. Composite dynamics is a prime candidate to provide such a mechanism. In this framework, the Higgs boson is a composite particle of a novel strong interaction, and its mass is kept light with respect to the energy scale of the latter by the spontaneous breaking of a global symmetry. Sp(2N) gauge theories have been proposed as models providing realisations of Higgs compositeness that are compatible with the current experimental data. Theoretical approaches to Higgs compositeness require non-perturbative methods. In this project, observables in Sp(2N) gauge theories will be studied numerically with Monte Carlo simulations of the relevant lattice-discretised theories. Extracted observable quantities will be used to inform phenomenological models.