EPJ Web of Conferences
Volume 111, 2016WONDER-2015 – 4th International Workshop On Nuclear Data Evaluation for Reactor applications
|Number of page(s)||6|
|Section||Evaluation of Nuclear data (Theories, Models, Codes)|
|Published online||15 March 2016|
A Lane consistent optical model potential for nucleon scattering on actinide nuclei with extended coupling
1 Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla, Apartado 1065, 41080, Sevilla, España
2 NAPC-Nuclear Data Section, International Atomic Energy Agency, Vienna International Centre, A–1400, Vienna, Austria
3 Joint Institute for Energy and Nuclear Research 220109, Minsk-Sosny, Belarus
4 Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology 2-12-1-N1-9 Ookayama, Meguroku, Tokyo 152-8550, Japan
Published online: 15 March 2016
An extension for odd-A actinides of a previously derived dispersive coupledchannel optical model potential (OMP) for 238U and 232Th nuclei is presented. It is used to fit simultaneously all the available experimental databases including neutron strength functions for nucleon scattering on 232Th, 233,235,238U and 239Pu nuclei. Quasi-elastic (p,n) scattering data on 232Th and 238U to the isobaric analogue states of the target nucleus are also used to constrain the isovector part of the optical potential. For even-even (odd) actinides almost all low-lying collective levels below 1 MeV (0.5 MeV) of excitation energy are coupled. OMP parameters show a smooth energy dependence and energy independent geometry.
© Owned by the authors, published by EDP Sciences, 2016
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