Validation of an optical potential for incident and emitted low-energy $$\alpha $$–particles in the $$A$$ $$\sim $$60 mass range

Abstract

AbstractThe assessment of an $$\alpha $$ α -particle optical model potential for nucleon–induced $$\alpha $$ α -emission within the $$A$$ A $$\sim $$ ∼ 60 mass-number range [Avrigeanu and Avrigeanu (Eur. Phys. J. A 57:54, 2021)] is completed by analysis of neutron–induced reactions on stable Ni isotopes. The same consistent set of nuclear–model input parameters as well as first uncertainty analysis of calculated cross sections related to the accuracy of independent data formerly used within parameter setting up have been concerned. Description of absorption and emission of $$\alpha $$ α -particles by the same potential is validated, while the pickup direct reaction and Giant Quadrupole Resonance (GQR) $$\alpha $$ α -emission beyond the statistical predictions are confirmed by recent data around the GQR energies.