Baryon Spectroscopy via Vector Meson and Hyperon Production

通过矢量介子和超子产生进行重子光谱

• 批准号: 0139954
• 负责人: Franz Klein
• 金额: --
• 依托单位: Catholic University of America
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-15 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0139954&HistoricalAwards=false
• 关键词: Baryon; Spectroscopy; via; Vector; Meson

The NSF proposal enables the PI to continue and expand his research activities at Jefferson Lab, Newport News, VA, in collaboration with the nuclear physics group at CUA. The research program concentrates on those experiments that are expected to have a major impact in our understanding of the spectrum of excited nucleons and the constituent quark models. Various model calculations show that the photoproduction of vector mesons and hyperons is most sensitive in the search for "missing resonances", i.e. excited nucleon states which are predicted by constituent quark models but haven't been observed experimentally. The experimental program covers analysis projects as well as the design of new instrumentations, especially a frozen spin target and highly segmented start counters, for polarization experiments in Jefferson Lab's Hall B, the only place where such experiments can be performed.

NSF 的提案使 PI 能够与 CUA 的核物理小组合作，继续并扩大他在弗吉尼亚州纽波特纽斯杰斐逊实验室的研究活动。该研究计划集中于那些预计将对我们理解激发核子光谱和构成夸克模型产生重大影响的实验。各种模型计算表明，矢量介子和超子的光产生在寻找“缺失共振”时最为敏感，即由组成夸克模型预测但尚未通过实验观察到的激发核子态。实验计划涵盖分析项目以及新仪器的设计，特别是冷冻旋转目标和高度分段的启动计数器，用于杰斐逊实验室 B 厅的偏振实验，这是唯一可以进行此类实验的地方。