Abstract:
We revised a description of low-energy neutron cross section data for even-even spherical nuclei in terms of the coupled channel optical model (CCOM). It is shown that two-phonon version of this model allows to obtain a unified description of these data assuming slight changes of nuclear diffuseness parameter for magic and near-magic nuclei. Neutron strength functions and scattering lengths for even-even spherical nuclei are also calculated using the same model. Results of these calculations are in a good agreement with experimental data. N p N n-systematics of inelastic neutron scattering on even-even nuclei is proposed. This systematics combined with CCOM calculations of neutron cross sections presents an additional method for finding nuclei with semimagic numbers of nucleons.
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Received: 11 January 1999
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Zaikin, D., Surkova, I. & Mordovskoy, M. Low-energy neutron interaction with even-even nuclei and coupled channel optical model . EPJ A 5, 53–62 (1999). https://doi.org/10.1007/s100500050256
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DOI: https://doi.org/10.1007/s100500050256