https://doi.org/10.1140/epja/s10050-024-01394-4
Regular Article – Experimental Physics
Investigating fusion attributes in 
reaction around the barrier
1
Department of Physics, Indian Institute of Technology Roorkee, 247667, Roorkee, Uttarakhand, India
2
Nuclear Physics Group, Inter-University Accelerator Centre, 110067, New Delhi, India
Received:
3
April
2024
Accepted:
6
August
2024
Published online:
3
September
2024
In heavy-ion collision experiments, the fusion cross section in the sub-barrier energy region is found to be enhanced by several orders of magnitude in comparison to the prediction of the one-dimensional barrier penetration model (1D-BPM) that involves the quantum mechanical tunneling effect during fusion. So far, the coupling-aided tunneling due to participating nuclei’s intrinsic degrees of freedom continues to be identified as an accountable factor. We intend to probe the role of structural properties and low-lying inelastic excitations of the colliding nuclei in driving the fusion phenomenon for energies in the near and sub-barrier regions. In the study, the fusion excitation function has been measured for reaction for energies 
11% below to 13% above the Coulomb barrier. The measured fusion cross section is found to be noticeably enhanced in the sub-barrier region compared to the corresponding 1D-BPM prediction. The coupled-channel (CC) formalism in the ccfull framework has been employed to interpret the aforementioned intricate processes involved in fusion. The present results have been compared with those of a few nearby mass systems to understand different aspects of channel coupling in heavy-ion fusion.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. 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.
