Quantum Chromodynamics and Electroweak Physics

量子色动力学和电弱物理

• 批准号: 9802564
• 负责人: Wu-ki Tung
• 金额: $ 49.5万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-15 至 2001-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9802564&HistoricalAwards=false
• 关键词: Quantum; Chromodynamics; Electroweak; Physics

*** Tung Research in theoretical elementary particle physics will include work on Quantum Chromodynamics (QCD), the theory which describes the strong nuclear force. This work will emphasize global analysis of experimental data to determine the precise composition of the nucleon in terms of quarks and gluons. This composition must be known in order to predict the rates of physical processes involving nucleons which probe both the existing "Standard Model" of elementary particle physics, and new physics which lies beyond this Standard Model. There will also be work on the question of how the symmetry between the electromagnetic and the weak nuclear forces is broken in nature, and on the search for supersymmetry, a hypothesized symmetry between the particles which are the constituents of matter, and the particles that carry the forces between bits of matter. All of these studies are important to our greater understanding of the Standard Model, and to our search for physics beyond it. ***

理论基本粒子物理的研究将包括描述强核力的量子色动力学（QCD）的研究。这项工作将强调对实验数据的全局分析，以确定核子在夸克和胶子方面的精确组成。为了预测涉及核子的物理过程的速率，必须知道这种成分，这些物理过程既可以探测基本粒子物理的现有“标准模型”，也可以探测超出该标准模型的新物理。还将研究电磁力和弱核力之间的对称性在自然界中是如何被打破的，以及寻找超对称性，即构成物质的粒子和承载物质之间力的粒子之间的一种假设对称性。所有这些研究都对我们更好地理解标准模型很重要，对我们寻找超越标准模型的物理学也很重要。* * *