high k multi particle bands and pairing reduction in 254 no

• DOI: 10.48550/arxiv.1908.09525
• Publication Date: 2020-03-01
• Authors: Zhongzhou Ren; Shu-Yong Zhao; Xiao-Tao He; Zhen-Hua Zhang
• Keywords: Nuclear Theory (nucl-th); Nuclear Theory; 0103 physical sciences; FOS: Physical sciences; Nuclear Experiment (nucl-ex); Nuclear Experiment; 01 natural sciences

Abstract The multi-particle states and rotational properties of the two-particle bands in are investigated by the cranked shell model with pairing correlations treated by the particle number conserving method. The rotational bands on top of the two-particle and states and the pairing reduction are studied theoretically in for the first time. The experimental excitation energies and moments of inertia of the multi-particle states are reproduced well by the calculations. Better agreement with the data is achieved by including the high-order deformation , which leads to enlarged and deformed shell gaps. An increase of in these two-particle bands compared with the ground state band is attributed to the pairing reduction due to the Pauli blocking effect.