https://doi.org/10.1140/epjp/s13360-023-04687-7
Regular Article
Experimental investigation of the effect of entrance channel parameters on incomplete fusion: a complete study of the 
C+
Tb system
1
Department of Physics, Bareilly College, 243005, Bareilly, U.P., India
2
MJP Rohilkhand University, 243006, Bareilly, U.P., India
3
Department of Physics, Aligarh Muslim University, 202002, Aligarh, U.P., India
4
Nuclear Physics Group, Inter University Accelerator Center, 110067, New Delhi, India
5
Department of Physics, Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia
Received:
14
June
2023
Accepted:
8
November
2023
Published online:
1
December
2023
Complete and incomplete fusion cross sections of the reaction residues populated in the C+Tb system have been measured at above-barrier energies, using activation technique . The experimentally measured cross sections were also compared to the statistical model code PACE4. The experimental excitation functions of the non-
emitting channels show a good agreement with theoretical predictions, whereas an enhancement for emitting channels has been observed over the PACE4 predictions. The present study involves an assessing of fusion incompleteness in the C+Tb reaction by comparing the fusion excitation function with coupled channels calculations and the extracted fusion function with the universal fusion function. The experimentally measured complete fusion cross sections for C+Tb system are found to be suppressed by 
10% in comparison to the theoretical predictions . The large cross sections measured for incomplete fusion products confirm the interpretation that this suppression of fusion results from breakup of C projectile with the target nucleus. The present results have also been compared with those obtained for the interaction of 
C, 
O, and 
O projectiles with the same target Tb, where role of strong projectile structure has been found. This correlates the dependence of incomplete fusion reaction process with the projectile 
value. It is also observed that incomplete fusion process depends on the mass asymmetry and Coulomb factor of interacting partners. The influence of incomplete fusion dynamics on target structure has been explained on the basis of target deformation parameter. Further, the neutron excess parameter exposes the role of ICF on the structure of projectile along with that of the target.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
