https://doi.org/10.1051/epjconf/202429206003
Predicting nucleon-nucleus scattering observables using nuclear structure theory
1 Lawrence Livermore National Laboratory, Livermore, CA, USA
2 Brookhaven National Laboratory, Upton, NY, USA
3 CEA, DAM, DIF, F-91297 Arpajon, France and Université Paris-Saclay, CEA, France
4 Laboratoire Matière sous Conditions Extrêmes, 91680 Bruyères-Le-Châtel, France
* e-mail: aaina1@llnl.gov
Published online: 14 March 2024
Developing a predictive capability for inelastic scattering will find applications in multiple areas. Experimental data for neutron-nucleus inelastic scattering is limited and thus one needs a robust theoretical framework to complement it. Charged-particle inelastic scattering can be used as a surrogate for (n, γ) reactions to predict capture cross sections for unstable nuclei. Our work uses microscopic nuclear structure calculations for spherical nuclei to obtain nucleon-nucleus scattering potentials and calculate cross sections for these processes. We implement the Jeukenne, Lejeune, Mahaux (JLM) semi-microscopic folding approach, where the medium effects on nuclear interaction are parameterized in nuclear matter to obtain the nucleon-nucleon (NN) interaction in a medium at positive energies. We solve for the nuclear ground state using the Hartree-Fock-Bogliubov (HFB) many-body method, assuming the nucleons within the nucleus interact via the Gogny-D1M potential. The vibrational excited states of the target nucleus are calculated using the quasi-particle random phase approximation (QRPA). We demonstrate our approach for spherical nuclei in the medium-mass region, showing scattering results for the 90Zr nucleus.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
