Fusion of with at near-barrier energies
Phys. Rev. C 113, 024608 – Published 12 February, 2026
DOI: https://doi.org/10.1103/3vqz-gyy4
Abstract
In this study, fusion cross sections for the reaction have been measured at near-barrier energies, within the range of 0.75 (MeV) . This investigation aims to explore the influence of the intrinsic structure of the projectile on fusion dynamics. The experimentally measured fusion excitation functions have been analyzed and interpreted using the coupled-channel approach using the ccfull code, which includes couplings to the collective excitations of both the projectile and target nuclei. While these calculations adequately describe sub-barrier fusion, they indicate a significant suppression of fusion (approximately 35%) at above-barrier energies, suggesting the impact of noncollective effects, such as projectile breakup. The barrier height, determined from the analysis of the barrier distribution, is found to be MeV. The reduced excitation functions of the system have been contrasted with those involving more tightly bound projectiles, such as and . It has been observed that exhibits the highest enhancement in sub-barrier fusion and a considerable suppression at above-barrier energies. This highlights the dependence on projectile structure, particularly given the low breakup threshold of . Furthermore, the systematic behavior of fusion suppression involving the projectile with various targets, , has also been investigated by applying the universal fusion function and the improved fusion function to the experimentally measured excitation functions. The results of this study indicate that the target nuclei have minimal to no influence on the observed fusion suppression.