High-spin level structure of the neutron-rich nucleus 91Y
Xiao-Feng He, Xiao-Hong Zhou, Yong-De Fang, Min-Liang Liu, Yu-Hu, Zhang, Kai-Long Wang, Jian-Guo Wang, Song Guo, Yun-Hua Qiang, Yong Zheng,, Ning-Tao Zhang, Guang-Shun Li, Bing-Shui Gao, Xiao-Guang Wu, Chuang-Ye He,, Yun Zheng
TL;DR
This study investigates the high-spin energy levels of neutron-rich 91Y, revealing new details about its structure and the forces influencing its nuclear configuration, using experimental reaction data.
Contribution
The paper provides a revised level scheme for 91Y, highlighting the role of spin-isospin dependent forces and tensor interactions in its structure.
Findings
New level scheme for 91Y clarified
Breaking of Z=38 and N=56 subshell closures observed
Involvement of spin-isospin and tensor forces in nuclear structure
Abstract
High-spin level structure of the neutron-rich nucleus 91Y has been reinvestigated via the 82Se(13C, p3n)91Y reaction. A newly constructed level scheme including several key levels clarifies the uncertainties in the earlier studies. These levels are characterized by the breaking of the Z=38 and N=56 subshell closures, which involves in the spin-isospin dependent central force and tensor force.
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Taxonomy
TopicsNuclear physics research studies · Nuclear Physics and Applications · Advanced Chemical Physics Studies