Structural properties and α-decay chains of transfermium nuclei (101≤Z≤110)

• Published in: Nuclear physics. A Vol. 1006; p. 122066
• Main Authors: Singh, U.K., Sharma, R., Sharma, P.K., Kaushik, M., Jain, S.K., Saxena, G.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-02-2021
• Subjects: Empirical formulas; Ground state properties; Relativistic mean-field theory; Spontaneous fission; Transfermium nuclei; α-Decay; Ground state properties; Transfermium nuclei; Empirical formulas; Relativistic mean-field theory; Spontaneous fission; α-Decay
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2020.122066

Transfermium nuclei (101≤Z≤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 α-decay half-lives are compared with our theoretical half-lives obtained by using various empirical/semi-empirical formulas. The recent formula proposed by Manjunatha et al., which results best among the considered 10 formulas, is further modified by adding asymmetry dependent terms (I and I2). This modified Manjunatha formula is utilized to predict probable α-decay chains that are found in excellent agreement with available experimental data.