Spectroscopy and Isospin Symmetry Studies of Exotic Neutron Deficient Nuclei

该项目的目的是利用约克公司在敲除方法方面的成熟专业知识来探索不同的核形状，并随后分析具有相同数目的质子和中子(N=Z)的核线上的中子-质子关联，例如80Zr。这项实验的数据将在密歇根州立大学国家超导回旋实验室使用92Mo的初级束流获得，然后用1n击穿次级的81Zr束流获得。80Zr的2+态寿命将与相邻N=Z核78Y的2+态寿命一起测量。这些寿命的测量将被用来沿着这条N=Z线探测等标量(T=0)NP配对关联。这一数据也将意味着NSCL将获得除66As外所有N=Z核从64Ge到80Zr的2+态寿命。如果可能，还将首次使用芬兰杰瓦斯基拉大学的一台新光谱仪探索A=100附近的高度奇异的富质子系统。这将允许通过比较镜像核，特别是通过镜像能量差，进一步研究nn和pp相互作用之间的根本差异。

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.