Saturation of coupling of collective levels in optical model calculations of even-even actinides
1 Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla, Sevilla, Spain
2 Nuclear Evaluation Lab, Joint Institute for Energy and Nuclear Research, Minsk, Belarus
3 NAPC–Nuclear Data Section, International Atomic Energy Agency, Vienna, Austria
4 Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology, Japan, and National Astronomical Observatory of Japan, Tokyo, Japan
a e-mail: firstname.lastname@example.org
Published online: 13 September 2017
Saturation of the coupling-scheme is studied in dispersive optical model calculations of nucleon induced reactions on 238U target. Recently derived potential that is based on a soft-rotator-model (SRM) description of the collective levels of the target nucleus with volume conservation is used. It is show that calculated direct excitation cross sections of all considered non-GS bands levels are larger than the 4+ GS band level excitation, and can't be ignored in coupled-channel calculations. SRM couplings of 21 levels constitute a saturated coupling scheme that allows a precise calculation of the compound-nucleus (CN) formation cross sections up to several MeV.
© The Authors, published by EDP Sciences, 2017
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