Spectroscopy and Isospin Symmetry Studies of Exotic Neutron Deficient Nuclei

该项目的目的是利用约克大学在敲除方法方面的专业知识来探索不同的核形状，并随后分析质子和中子数量相等（N=Z）的原子核（如80Zr）的中子-质子相关性。这项实验的数据将在密歇根州立大学的国家超导回旋加速器实验室获得，使用92Mo的主光束，然后用1n的81Zr的次级光束进行敲除。80Zr的2+态的寿命将与邻近的N=Z核78Y的2+态的寿命一起测量。这些寿命的测量将用于沿着这条N=Z线探测等标量（T=0） np配对相关性。这一数据也意味着NSCL将获得64Ge至80Zr范围内所有N=Z原子核的2+态寿命，66As除外。如果可能的话，在A=100附近的高度奇异的富含质子的系统也将首次使用芬兰Jyvaskyla大学的新光谱仪进行探索。这将允许通过镜像核的比较，特别是通过镜像能量的差异，进一步研究nn和pp相互作用之间的基本差异。

The aim of this project is to use York's developed expertise in knockout methodology to explore different nuclear shapes and to subsequently analyse neutron-proton correlations along the line of nuclei with equal numbers of protons and neutrons (N=Z), such as 80Zr. The data for this experiment will be obtained at the Michigan State University at the National Superconducting Cyclotron Laboratory using a primary beam of 92Mo, followed by a 1n knockout of the secondary 81Zr beam. The lifetime of the 2+ states of 80Zr will be measured along with the lifetime of the 2+ state of the neighbouring N=Z nuclei 78Y. Measurements of these lifetimes will be used to probe isoscalar (T=0) np pairing correlations along this N=Z line. This data will also mean that NSCL will have obtained lifetimes of the 2+ states of all N=Z nuclei from 64Ge to 80Zr, with the exception of 66As. If possible, highly exotic proton-rich systems near A=100 will also be explored for the first time using a new spectrometer at the University of Jyvaskyla, Finland. This will allow further investigation into the fundamental differences between nn and pp interactions through the comparison of mirror nuclei, in particular through mirror energy differences.