Abstract
The influence of shell effects on fusion of mid-mass nuclei is explored using isotopic chains of K and Ar ions on an oxygen target. Comparison of the reduced excitation functions reveals that the fusion cross section for the open neutron-shell projectile nuclei and is systematically larger than for the closed neutron-shell projectiles and . The São Paulo fusion model using matter densities from systematics fails to describe the measured excitation functions. Use of more realistic densities from a Dirac-Hartree-Bogoliubov (DHB) approach performs significantly better though it still overpredicts the closed-shell nuclei.
- Received 18 July 2021
- Accepted 1 October 2021
DOI:https://doi.org/10.1103/PhysRevC.104.L041601
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