Lattice QCD and lattice beyond the standard model

晶格QCD和超越标准模型的晶格

• 批准号: SAPIN-2018-00030
• 负责人: Lewis, Randy
• 金额: $ 5.1万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=691543
• 关键词: Lattice; QCD; lattice; beyond; standard

This research program uses computer calculations to study the physics of elementary particles. The method is called lattice field theory and it has become a standard tool for learning about quarks and gluons, which are the building blocks of protons, neutrons, and all other hadrons. My research group is using lattice field theory to advance knowledge in three specific directions.******1. After several years of studying conventional hadrons, we are now performing calculations of exotic hadrons. Although exotic candidates have been observed at many experimental facilities around the world, there is no consensus on a theoretical understanding.******2. Many of the big questions in particle physics rely on precise input from lattice field theory, and we are working as part of the international effort to refine the knowledge of two particularly important quantities: the strong coupling between quarks and gluons, and the muon's anomalous magnetic moment.******3. Astrophysical observations indicate the existence of dark matter, but the standard model of particle physics contains no dark matter particle. We are using lattice methods to study a theory of dark particles with a dark force that resembles the known theory of quarks and gluons.

这个研究项目使用计算机计算来研究基本粒子的物理学。 这种方法被称为晶格场论，它已经成为学习夸克和胶子的标准工具，它们是质子，中子和所有其他强子的组成部分。 我的研究小组正在使用格场理论在三个特定方向上推进知识。1.经过几年对传统强子的研究，我们现在开始计算奇异强子。 尽管在世界各地的许多实验设施中已经观察到了奇异的候选者，但在理论上的理解还没有达成共识。2.粒子物理学中的许多重大问题都依赖于格场理论的精确输入，我们正在努力完善两个特别重要的量的知识：夸克和胶子之间的强耦合，以及μ子的异常磁矩。3.天体物理观测表明暗物质的存在，但粒子物理学的标准模型不包含暗物质粒子。 我们正在使用晶格方法来研究一种具有暗力的暗粒子理论，它类似于已知的夸克和胶子理论。