Light hadron spectroscopy ((05) S03)

光强子光谱（(05)S03）

• 批准号: 215322380
• 金额: --
• 依托单位: Institut für Kernphysik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/215322380?language=en
• 关键词: Light; hadron; spectroscopy; 05; S03

The symmetries and long-range dynamics of light quarks are manifest in the complex excitation spectra of hadrons. In particular, the excitations of protons and neutrons are at the center of this project. The detailed study of spin degrees of freedom in meson photoproduction at several research facilities will allow for a description of these processes with unprecedented completeness and precision in the near future. New partial wave analyses with a significantly reduced model dependence will then be possible. This project is devoted to the performance, analysis, and interpretation of dedicated experiments at the accelerators MAMI/Mainz, ELSA/Bonn and BEPC-II/Beijing. These measurements are the basis for partial wave analyses and the identification and characterisation of baryon resonances.

轻夸克的对称性和长程动力学表现在强子的复激发谱中。特别是，质子和中子的激发是这个项目的中心。在不久的将来，几个研究机构对介子光产生中自旋自由度的详细研究将允许以前所未有的完整性和精度描述这些过程。新的部分波分析将有可能大大减少对模型的依赖。本项目致力于在MAMI/美因茨、ELSA/波恩和BEPC-II/北京加速器上进行的专用实验的性能、分析和解释。这些测量是部分波分析和重子共振的识别和表征的基础。