Abstract
Further analysis of α-particle emission from similar nuclei excited in neutron- as well as low-energy proton-induced reactions is involved concerning a possible difference between the optical model potentials (OMPs) which describe either alpha-particle elastic scattering and induced reactions or alpha-emission from excited compound nuclei. The key role of the pickup direct interaction is finally proved even at incident energies below ~10 MeV, as well as being eventually at the origin of the above-mentioned OMPs difference.
Highlights
The α-particle interaction with nuclei and the corresponding optical model potential (OMP) were of special interest from the earliest days of nuclear physics
Further analysis of α-particle emission from similar nuclei excited in neutron- as well as low-energy proton-induced reactions is involved concerning a possible difference between the optical model potentials (OMPs) which describe either alpha-particle elastic scattering and induced reactions or alpha-emission from excited compound nuclei
The widely-used phenomenological OMP parameters were derived from analysis of either elastic-scattering or α-induced reaction data and used to describe the α-particle emission from hot nuclei excited in nuclear reactions
Summary
The α-particle interaction with nuclei and the corresponding optical model potential (OMP) were of special interest from the earliest days of nuclear physics. Further analysis of α-particle emission from similar nuclei excited in neutron- as well as low-energy proton-induced reactions is involved concerning a possible difference between the optical model potentials (OMPs) which describe either alpha-particle elastic scattering and induced reactions or alpha-emission from excited compound nuclei.
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