Effective Quantum Field Theories for the LHC

大型强子对撞机的有效量子场论

• 批准号: 2419739
• 金额: --
• 依托单位: Durham University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2419739
• 关键词: Effective; Quantum; Field; Theories; LHC

Effective field theories are a powerful tool for tacking problems in quantum field theory characterised by two or more disparate energy scales. Expertise in effective theories can be applied to many areas of particle physics phenomenology, from generating all-orders perturbative results (i.e. resummation) for scattering cross sections, to searching for signs of new physics through non-standard interactions of Standard Model particles. A PhD project in this direction will thus involve becoming familiar with effective-field theory machinery in general, and then applying it to a specific directions in LHC phenomenology, which can be shaped according to the interests of the student. As concrete examples, my current PhD students are developing techniques for calculating quantum corrections to Higgs boson decays in the "Standard Model Effective Field Theory" on the one hand, and using machine learning and deep neural networks in order to search for new interactions at the LHC on the other. The Institute for Particle Physics Phenomenology (IPPP) in Durham, has an outstanding expertise in the theoretical aspects of physics beyond the Standard Model and on its phenomenological signatures and it is an ideal place for this ambitious project.

有效场论是解决量子场论中以两个或多个不同能量尺度为特征的问题的有力工具。有效理论的专业知识可以应用于粒子物理学现象学的许多领域，从生成散射截面的所有阶微扰结果（即再确认），到通过标准模型粒子的非标准相互作用寻找新物理的迹象。因此，该方向的博士项目将涉及熟悉一般有效场理论机制，然后将其应用于大型强子对撞机现象学的特定方向，该方向可以根据学生的兴趣进行调整。作为具体的例子，我目前的博士生正在开发技术，一方面在“标准模型有效场论”中计算希格斯玻色子衰变的量子修正，另一方面使用机器学习和深度神经网络在LHC中寻找新的相互作用。位于达勒姆的粒子物理现象学研究所（IPPP）在标准模型之外的物理学理论方面及其现象学特征方面具有杰出的专业知识，它是这个雄心勃勃的项目的理想场所。