Structural Properties and $\alpha$-Decay Chains of Transfermium Nuclei (101$\leq$Z$\leq$110)
| Autor: | Singh, U. K., Sharma, R., Sharma, P. K., Kaushik, M., Jain, S. K., Saxena, G. |
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| Rok vydání: | 2020 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.nuclphysa.2020.122066 |
| Popis: | Transfermium nuclei (101$\leq$Z$\leq$110) are investigated thoroughly to describe structural properties viz. deformation, radii, shapes, magicity, etc. as well as their probable decay chains. These properties are explored using relativistic mean-field (RMF) approach and compared with other theories along with available experimental data. Neutron numbers N$=$152 and 162 have come forth with a deformed shell gap whereas N$=$184 is ensured as a spherical magic number. The region with N$>$168 bears witness of the phenomenon of shape transition and shape coexistence for all the considered isotopic chains. Experimental $\alpha$-decay half-lives are compared with our theoretical half-lives obtained by using various empirical/semi-empirical formulas. The recent formula proposed by Manjunatha \textit{et al.}, which results best among the considered 10 formulas, is further modified by adding asymmetry dependent terms ($I$ and $I^2$). This modified Manjunatha formula is utilized to predict probable $\alpha$-decay chains that are found in excellent agreement with available experimental data. Comment: 22 pages, 6 pages |
| Databáze: | arXiv |
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