Physics: Theory of Elementary Particles

物理学：基本粒子理论

• 批准号: 9514797
• 负责人: Lawrence Hall
• 金额: $ 246万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-02-01 至 2002-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9514797&HistoricalAwards=false
• 关键词: Physics; Theory; Elementary; Particles

9514797 Hall This proposal deals with a wide range of problems in high energy theoretical physics, but there are several themes. One avenue is to explore new formulations of the basic tools of quantum field theory with which one describes the interactions of elementary particles. Possible generalizations are proposed and some new facets of string theory are considered as well. String theory is an attempt to arrive at a unified description of all interactions including gravity. There are formidable mathematical obstacles in obtaining such a formulation: some of these are addressed in the proposal. A second avenue is to attempt a more phenomenological description of the interactions of elementary particles, in particular incorporating supersymmetry, the proposed but as of yet unobserved symmetry between bosons and fermions. Several models are discussed and their predictions for high energy experiments are detailed. The links between phenomenological models and underlying string theories are another subject of this proposal as are the predictions of models for phenomena in the early universe and for cosmology. ***

这一建议涉及高能理论物理中广泛的问题，但也有几个主题。一条途径是探索量子场论基本工具的新公式，人们用这些基本工具来描述基本粒子的相互作用。提出了可能的推广，并考虑了弦理论的一些新方面。弦理论试图对包括引力在内的所有相互作用进行统一描述。在获得这样一个公式方面存在着巨大的数学障碍：其中一些在建议中得到了解决。第二种途径是尝试对基本粒子的相互作用进行更现象学的描述，特别是结合超对称性，即玻色子和费米子之间提出但尚未观察到的对称性。讨论了几种模型，并详细介绍了它们对高能实验的预测。现象学模型和基础弦理论之间的联系是本提案的另一个主题，正如早期宇宙和宇宙学现象模型的预测一样。＊＊＊