Baryon Spectroscopy via Vector Meson and Hyperon Production

美国国家科学基金会的建议使PI能够继续和扩大他在杰斐逊实验室的研究活动，纽波特纽斯，弗吉尼亚州，在与核物理组在CUA合作。该研究计划集中在那些实验，预计将有一个重大影响，在我们的理解激发核子的光谱和组分夸克模型。各种模型计算表明，矢量介子和超子的光生在寻找“丢失的共振”，即由组分夸克模型预测但尚未被实验观察到的激发核子态时是最敏感的。实验计划包括分析项目以及新仪器的设计，特别是冻结自旋目标和高度分段的启动计数器，用于在杰斐逊实验室的大厅B进行极化实验，这是唯一可以进行此类实验的地方。

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.