Cluster decay half-lives in trans-tin and transition metal region using RMF theory

被引:8
作者
Singh, Ajeet [1 ]
Shukla, A. [1 ]
Gaidarov, M. K. [2 ]
机构
[1] Rajiv Gandhi Inst Petr Technol, Dept Phys, Jais, Amethi, India
[2] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia 1784, Bulgaria
关键词
cluster radioactivity; nuclear structure; RMF; ELDM; MEAN-FIELD-THEORY; ALPHA-DECAY; RADIOACTIVITY; FISSION; NUCLEI; EMISSION; DEFORMATIONS; ISOTOPES; SEARCH; MASSES;
D O I
10.1088/1361-6471/ac3c4e
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
In the present work, we have studied the alpha-like clusters (Be-8, C-12, O-16, Ne-20, and Mg-24) decay half-lives in the trans-tin region for (Xe106-116, Ba108-120, Ce114-126, and Nd118-128) and in transition metal region for (Hf156-166, W158-172, Os160-174, Pt166-180, and Hg170-182) nuclei. These half-lives have been calculated using the shape parametrization model of cluster decay in conjunction with the axially deformed relativistic mean-field model with the NL3* parameter set. They are also compared with the half-lives computed using the latest empirical relations, namely universal decay law and the scaling law was given by Horoi et al. It has been observed that in the trans-tin region the minimum cluster decay half-lives are found at nearly doubly magic or doubly magic daughter Sn-100 nucleus (N (d) = 50, N (d) is the neutron number of the daughter nucleus) and in transition metal region at N (d) = 82, which is a magic number. The Geiger-Nuttal plots of half-lives showing Q dependence for different alpha-like clusters from various cluster radioactive emitters are found to vary linearly.
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