Abstract
Fusion cross sections have been measured in the 40 Ca + 58 Ni and 40 Ca + 64 Ni systems at beam energies ranging from Elab = 104.75 MeV to 153.5 MeV using the Laboratori Nazionali di Legnaro electrostatic deflector. Distributions of barriers have been extracted from the experimental data. Preliminary coupled channel calculations were performed and hints of effects of neutron transfers on the fusion below the barrier in the 40 Ca + 64 Ni are discussed.
Highlights
Fusion-evaporation is the dominant reaction mechanism in medium-light heavy-ion collisions at relatively low bombarding energies
It has been demonstrated that the dominant features observed at these energies, are the enhancement of the fusion cross-section at the Coulomb barrier (CB) and at moderate subbarrier energies, and the hindrance of the cross-section at deep subbarrier energies
Fusion crosssections around the CB are driven by couplings of the relative motion of the colliding nuclei to their low energy surface vibrations and/or stable deformations
Summary
Fusion-evaporation is the dominant reaction mechanism in medium-light heavy-ion collisions at relatively low bombarding energies. This contribution discusses fusion at and below the Coulomb barrier (CB) energies for the two 40Ca + 58Ni and 40Ca + 64Ni systems.
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