Alternate Solution of the $\alpha$-Potential Mystery

Abstract

A consistent set of statistical-model input parameters, validated by analysis of various independent data, makes possible the assessment of an $\alpha$-particle optical model potential [Phys. Rev. C {\bf 90}, 044612 (2014)] also for nucleon-induced $\alpha$-emission within $A$$\sim$60 mass-number range. The advantage of recent data for low-lying states feeding is taken as well. Consideration of additional reaction channels leading to increase of the $\alpha$-emission beyond the statistical predictions has concerned the pickup direct interaction and Giant Quadrupole Resonance similar features.