Study of incomplete fusion reaction dynamics in C13+165Ho system and its dependence on various entrance channel parameters

Tali, S.A and Kumar, H. and Ansari, M.A. and Ali, A. and Singh, D. and Ali, R. and Giri, P.K. and Linda, S.B. and Parashari, S. and Kumar, R. and Singh, R.P. and Muralithar, S. (2018) Study of incomplete fusion reaction dynamics in C13+165Ho system and its dependence on various entrance channel parameters. Nuclear Physics A, 970. pp. 208-223. ISSN 3759474

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The excitation functions for the evaporation residues populated in the interaction of C13+165Ho system have been measured at projectile energies ≈ 4–7 MeV/nucleon. Stacked foil activation technique followed by off-line γ-ray spectroscopy have been employed in the present work. The experimentally measured cross-sections are analyzed in the frame work of statistical model code PACE4, which takes into account only the complete fusion reaction cross-sections. The evaporation residues populated via xn and pxn channels were found to be in good agreement with the PACE4 predictions, while a significant enhancement in the measured cross-sections over PACE4 predictions is observed in case of α-emitting channels, which may be attributed to the incomplete fusion process. For the better understanding of incomplete fusion dynamics, the incomplete fusion fraction has also been deduced and its sensitivity with various entrance channel parameters like: projectile energy, mass-asymmetry, projectile structure in terms of Qα-value and Coulomb effect has been studied in the present work. The incomplete fusion fraction is found to increase with increasing the projectile energy and a strong projectile structure dependent mass-asymmetry systematic is also observed. The incomplete fusion fraction is also found to be small for more negative Qα-value projectile (13C) induced reactions as compared to less negative Qα-value projectiles (12C, 16O and 20Ne) induced reactions with the same target nucleus 165Ho. An interesting trend is obtained on further investigation of incomplete fusion dependence on Coulomb effect (ZPZT).

Item Type: Article
Uncontrolled Keywords: Coulomb effect; Excitation function measurements; Incomplete fusion fraction; Mass-asymmetry; Qα-value
Subjects: Q Science > QC Physics
Divisions: Faculties > Faculty of Science > Department of Physics
Depositing User: AMU Library
Date Deposited: 20 Jan 2018 05:09
Last Modified: 20 Jan 2018 05:09

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