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Towards a coupled-channel optical potential for rare-earth nuclei

2013/11/03 by G. P. A. Nobre, A. Palumbo, Nobre, G. P. A. +9
Chemistry · Earth and Planetary Sciences · Physics and Astronomy · #Advanced NMR Techniques and Applications #FOS: Physical sciences #High-pressure geophysics and materials #Nuclear Theory (nucl-th) #Nuclear physics research studies

paper · pdf · doi:10.48550/arxiv.1311.0426

openalex publication_date 2013/11/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We present an outline of an extensive study of the effects of collective couplings and nuclear deformations on integrated cross sections as well as on angular distributions in a consistent manner for neutron-induced reactions on nuclei in the rare-earth region. This specific subset of the nuclide chart was chosen precisely because of a clear static deformation pattern. We analyze the convergence of the coupled-channel calculations regarding the number of states being explicitly coupled. A model for deforming the spherical Koning-Delaroche optical potential as function of quadrupole and hexadecupole deformations is also proposed, inspired by previous works. We demonstrate that the obtained results of calculations for total, elastic, inelastic, and capture cross sections, as well as elastic and inelastic angular distributions are in remarkably good agreement with experimental data for scattering energies around a few MeV.

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