Higgs instantons in the Standard Model

标准模型中的希格斯瞬子

• 批准号: 2275318
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2275318
• 关键词: Higgs; instantons; Standard; Model

The Standard Model of particle physics predicts that, for the best estimates for the particle masses, the current vacuum state in metastable, and that eventually it will decay into to true negative-energy ground state. This process is described by semiclassical instanton solutions. The aim of this project is to find these instantons in the presence of a cosmological constant and a non-minimal coupling to gravity, and investigate the effects of gravity and quantum corrections. This will give a better understanding of the rate of this process and how it depends on the parameters of the theory, and that way it makes it possible to constrain them.

粒子物理学的标准模型预测，对于粒子质量的最佳估计，当前的真空状态处于亚稳态，最终它将衰减到真正的负能量基态。这个过程可以用半经典瞬子解来描述。该项目的目的是在宇宙学常数和与引力的非最小耦合存在的情况下找到这些瞬子，并研究引力和量子校正的影响。这将使我们更好地理解这个过程的速率，以及它如何依赖于理论的参数，这样就有可能限制它们。