| Autor: |
Abhijit Bisoi, Arkabrata Gupta, Y. Sapkota, T. Bhattacharjee, Anik Adhikari, I. Ray, Shahnawaz Alam, S.K. Dey, M. Saha Sarkar, Suman Aich, A. Saha, Ananya Das, Dibyadyuti Pramanik, Sangeeta Das, Sathi Sharma, S. S. Sarkar, Chandi Charan Dey |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Nuclear Physics A. 1006:122079 |
| ISSN: |
0375-9474 |
| DOI: |
10.1016/j.nuclphysa.2020.122079 |
| Popis: |
The low-lying states of 117,118Sn have been studied from the decay of 117 g , 118 m Sb, and 117 m Sn. These long-lived species were populated through the reaction 4He + n a t In at E l a b = 32 MeV. Singles, as well as γ-γ coincidence data, were acquired. The uncertainties in the placement of some of the γ-rays in the excitation spectra of 118Sn observed by previous workers have been removed. A γ-ray (984 keV) previously assigned to 118Sn has been eliminated from the level scheme, based on the present analysis. The decay half-lives of 117 g , 118 m Sb have been remeasured. The slope method and deconvolution technique have been used to determine the half-lives of a few isomeric states in 117,118Sn. The results are interpreted in the framework of large scale shell model calculations performed in the 50 - 82 valence shell using truncations. Although the excitation energies were not reproduced well, the theoretical calculations could reasonably reproduce the isomers' transition probabilities due to their nearly pure configuration. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect