Relativistic Quantum Theory and the Interactions of Elementary Particles

相对论量子理论和基本粒子的相互作用

• 批准号: 9421385
• 负责人: Joseph Sucher
• 金额: $ 39万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-01-15 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9421385&HistoricalAwards=false
• 关键词: Relativistic; Quantum; Theory; Interactions; Elementary

9421385 Sucher The goal of this research is to understand the fundamental interactions of nature through their manifestations in various aspects of particle physics, astrophysics and atomic physics. In particular, this includes exploration of the nature of new physics such as grand unification, supersymmetry, new gauge symmetries which provide solutions to various unsolved problems of the successful standard model of electroweak interactions, such as the observed fermion mass hierarchies, the strong CP problem etc., and have the potential to explain observations pertaining to neutrino masses and mixings inferred from solar neutrino data and hot dark matter of the universe. Another area of investigation is the application of Quantum Electrodynamics, the quantum theory of electromagnetic interactions and Quantum Chromodynamics, the theory of strong interactions to problems of atomic and particle physics. Specfic examples include the analysis of forces between atoms, ions, and electrons which depend on spin, the understanding of the highly excited states of the helium atom, the interplay between strong and electromagnetic forces in proton-proton scattering, and the computation of forces between quarks and anti-quarks resulting from the exchange of gluons. ***

本研究的目标是通过它们在粒子物理、天体物理和原子物理的各个方面的表现来了解自然界的基本相互作用。特别是，这包括探索新物理的本质，如大统一，超对称，新规范对称，这些为成功的电弱相互作用标准模型的各种未解决问题提供了解决方案，如观测到的费米子质量层次，强CP问题等，并有可能解释有关中微子质量的观测和从太阳中微子数据推断的混合以及宇宙的热暗物质。另一个研究领域是量子电动力学，电磁相互作用的量子理论和量子色动力学，强相互作用理论在原子和粒子物理问题中的应用。具体的例子包括原子、离子和电子之间依赖自旋的力的分析，氦原子的高激发态的理解，质子-质子散射中强力和电磁力之间的相互作用，以及由胶子交换引起的夸克和反夸克之间的力的计算。＊＊＊