Exploring LHC Physics using Lattice Gauge Theory

通过基于格点规范理论的数值模拟，研究了强耦合规范理论或技术色模型的各种性质，该模型被认为是粒子物理中标准模型之外的一个有吸引力的候选模型。研究中的一个关键问题是确定一个给定的规范理论是否表现出红外一致性，对于某个显式模型，我们通过研究运行规范耦合常数的红外不动点并通过观察低能谱来确定它。我们还发展了一种简单易用的方法来阐明有限温度相变的存在及其性质。

Various properties of strongly coupled gauge theory, or technicolor model, which is known to be an attractive candidate beyond the standard model in particle physics, was investigated by performing numerical simulations based on lattice gauge theory. A crucial point in the study is to identify whether a given gauge theory shows infrared conformality or not, and for a certain explicit model we have determined it by investigating the infrared fixed point of the running gauge coupling constant and by seeing low energy spectrum. We also developed a easy-to-use method to clarify the existence of finite temperature phase transition and its nature.