| Autor: |
Abhishek Yadav, R. Prasad, Indu Bala, Devendra Singh, Vijay R. Sharma, R. Kumar, R. K. Bhowmik, S. K. Gupta, Mohd Shuaib, S. Muralithar, Pushpendra Singh, Manoj Kumar Sharma, B. P. Singh, R. P. Singh |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Nuclear Physics A. 946:182-193 |
| ISSN: |
0375-9474 |
| Popis: |
In heavy-ion induced reactions, incomplete fusion (ICF) has been found to be a process of greater importance and of distinct nature even at slightly above the barrier energies where complete fusion (CF) is supposed to be dominant. However, the studies are limited to a few projectile target combinations only. To confirm the distinctly different decay patterns observed in case of CF and ICF residues, and to understand the role of high l-values in the onset of ICF, a particle-γ-coincidence technique has been employed to measure spin-distributions and feeding intensity profiles of CF and ICF residues populated via x n / p x n / α x n -channels in 16O+159Tb interactions at E lab ≈ 83.5 ± 1.5 , 88.5 ± 1.5 , 93.5 ± 1.5 and 97.6 ± 1.4 MeV . The Gamma Detector Array and the Charged Particles Detector Array have been used to detect prompt γ-rays in coincidence with charged particles (p and α). CF-α and ICF-α channels have been identified from backward (B)- and forward (F)-α-gated-γ-spectra, respectively. Reaction dependent decay patterns (thus, the feeding intensity profiles) have been observed in different α emitting channels. The CF channels are found to be widely populated and strongly fed over a broad spin range. In case of ICF-α channels, narrow range feeding was observed only for high-spin states or the low spin states were not populated. The mean l-values involved in the production of ICF- α x n -channels are found to be higher than those involved in the production of CF- α x n -channels associated with fusion-evaporation reactions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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