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Shape evolution and shape coexistence in even-even Mo isotopic chain
Nuclear Physics A ( IF 1.4 ) Pub Date : 2024-01-11 , DOI: 10.1016/j.nuclphysa.2024.122831
Y. El Bassem , M. El Adri , A. El Batoul , M. Oulne

The phenomena of shape evolution and shape coexistence within the Molybdenum isotopic chain are investigated using the covariant density functional theory with the parameterizations DD-ME2 and DD-PC1. Furthermore, various ground state properties of this chain are investigated, including binding energy, two-neutron separation energy, charge radii, and two-neutron shell gap. A robust agreement is observed when comparing with the available experimental data. The ground state deformation of Mo isotopes evolves smoothly and correlates with the continuous and gradual changes observed in the physical properties. A noticeable phenomenon of shape coexistence can be observed in certain isotopes, marked by the simultaneous existence of both a triaxial and an oblate axial minimum. A pronounced and well-defined shell closure is prominently evident at the neutron magic number N=82.



中文翻译:

偶偶Mo同位素链的形状演化与形状共存

使用参数化 DD-ME2 和 DD-PC1 的协变密度泛函理论研究了钼同位素链内的形状演化和形状共存现象。此外,还研究了该链的各种基态特性,包括结合能、二中子分离能、电荷半径和二中子壳层间隙。与可用的实验数据进行比较时,观察到了强有力的一致性。Mo同位素的基态变形平稳演化,并与观察到的物理性质的连续渐变变化相关。在某些同位素中可以观察到明显的形状共存现象,其特征是同时存在三轴和扁轴极小值。在中子幻数处,明显且明确的壳闭合现象非常明显=82

更新日期:2024-01-11
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