Study of shell evolution and shape coexistence in neutron rich krypton isotopes

我们将利用液态氢靶系统的核子敲除和非弹性质子散射的数据，结合在束伽马能谱，研究丰中子同位素93Kr、94Kr、95Kr和96Kr的形变和形状共存的演化。对于奇中子核95Kr，结合停止反应喷射物的高分辨伽马能谱，将为探索先前已发现的同质异构态之上的单粒子结构提供独特的可能性。还将进行利用低能库仑激发反运动学中的放射性氪离子束的其他实验，以获得过渡性和对角线矩阵元素等补充核结构信息。

We will investigate the evolution of deformation and shape coexistence in the neutron rich isotopes 93Kr, 94Kr, 95Kr and 96Kr using data on nucleon knockout and inelastic proton scattering of a liquid hydrogen target system combined with in-beam gamma spectroscopy. For the odd-neutron nucleus 95Kr the combination with high resolution gamma spectroscopy of the stopped reaction ejectiles will provide the unique possibility to explore the single particle structure on top of previously identified isomeric states. Additional experiments using low-energy Coulomb excitation of radioactive krypton ion beams in inverse kinematics will also be pursued in order to gain complementary nuclear structure information such as transitional and diagonal matrix elements.