Vol. 7, Issue 2, Part E (2025)

Halo nuclei, known for their unexpectedly large sizes as compared to their isobars, don’t obey nuclear shell model expectations. Their significant deviations from the expected nuclear structures have established them as an interesting area of research. The extended matter distribution due to weakly-bound nucleons significantly increases their nuclear surface area. This enhanced surface area and lower binding of halo nucleons significantly affect the surface energy coefficient (γ) as compared to that for a non-halo nucleus. This surface energy coefficient accounts for the energy associated with the interaction between the surfaces of the two colliding nuclei. The lower surface energy contributes to lower binding energy and thus exotic behavior of halo nuclei. Our earlier study on the halo structure effects on the fusion probabilities unveiled that the extended halo radii significantly affect the fusion barrier as well as fusion probabilities. In the present paper, the impact of the surface energy coefficient on the fusion probabilities has been discussed in the halo-induced fusion reactions by employing a proximity-based potential. Neutron-halo (⁶He) and proton-halo (⁸B) induced fusion reactions have been considered for the present study.