Non-perturbative dynamics and compositeness

标准模型中电弱对称性破缺的基本起源是粒子物理学中最紧迫的问题之一。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型强相互作用的复合粒子，它的质量相对于后者的能量尺度来说是很轻的，这是由于全局对称性的自发破坏。Sp（2N）规范理论已被提出作为模型，提供与当前实验数据兼容的希格斯复合性的实现。希格斯复合的理论方法需要非摄动方法。在这个项目中，Sp（2N）规范理论中的观测值将通过蒙特卡罗模拟相关的晶格离散理论进行数值研究。提取的可观测量将用于现象学模型。

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.