Composite Systems in QED and QCD: Spectra, Decays and Production

QED 和 QCD 复合系统：光谱、衰变和产生

• 批准号: 9120102
• 负责人: Howard Grotch
• 金额: $ 10.8万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-01-01 至 1995-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9120102&HistoricalAwards=false
• 关键词: Composite; Systems; QED; QCD; Spectra

Research centers on bound states in QED and QCD through the study of spectra, decays and production. Major effort will be on the Lamb shift in hydrogen with the goal of extracting the .2(Z.)5m contribution thus completing the calculation to about 1 kHz accuracy. Work will also be initiated on heavy quark/anti-quark systems including relativistic and coupled channel effects. Leptonic widths and production processes for charmonium will be calculated and finally, QCD corrections to the production of > states examined.

通过光谱、衰减和产生的研究，研究QED和QCD中的束缚态。主要的努力将放在氢的兰姆转变上，目标是提取0.2 (z)。5m的贡献，从而完成计算约1千赫的精度。还将开始研究重夸克/反夸克系统，包括相对论和耦合通道效应。将计算调和子的轻子宽度和生产过程，最后，对产生>态的QCD校正进行检验。