2008/11/01 by M. Avrigeanu, V. Avrigeanu
Physics and Astronomy · #Alpha particle #Astronomical and nuclear sciences #Atomic physics #Coulomb #Coulomb barrier #Nuclear physics #Nuclear physics research studies #Particle (ecology) #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scattering #Statistical physics #nucl-ex
paper · pdf · doi:10.1103/physrevc.79.027601
published as Phys.Rev.C79:027601,2009 · 4 pages, 3 figures
arxiv created 2008/11/01 · openalex publication_date 2009/02/05 · arxiv updated 2009/12/01 · openalex created_date 2017/03/16 · openalex updated_date 2026/08/05
The results of two recent papers concerning (\ensuremathα,\ensuremathγ) and (\ensuremathα,n) reaction cross sections close to the reaction thresholds are discussed with regard to predictions of a recent \ensuremathα-particle regional optical potential. It is found that the new measured cross sections are rather well described especially for the dominant reaction channels. Particular features of the \ensuremathα-particle optical potential at energies below the Coulomb barrier explain the failure of a former regional potential obtained by analysis of \ensuremathα-particle elastic scattering alone at higher energies. Additional limitations of statistical model calculations for minor reaction channels are also discussed.