https://doi.org/10.1140/epja/s10050-023-01072-x
Regular Article - Theoretical Physics
Systematic study of elastic proton-nucleus scattering using relativistic impulse approximation based on covariant density functional theory
1
School of Physical Science and Technology, Southwest University, 400715, Chongqing, China
2
Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
3
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 100049, Beijing, China
4
School of Nuclear Science and Technology, Lanzhou University, 730000, Lanzhou, China
5
State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, 100871, Beijing, China
6
Institute of Nuclear Physics and Chemistry, CAEP, 621900, Mianyang, Sichuan, China
Received:
6
February
2023
Accepted:
30
June
2023
Published online:
17
July
2023
In this work, we apply relativistic impulse approximation (RIA) with a modern density functional PC-PK1 to systematically analyze the available experimental data at 
MeV. The theoretical calculations successfully reproduce the numerous experimental data of the elastic-scattering cross sections and analyzing power for both even and odd nuclei in a wide range of mass number (
) and incident energies ( MeV). Moreover, a strong correlation between the root-mean-square (rms) radius of the neutron distribution and the inverse of momentum transfer corresponding to the minimum of the cross section is demonstrated again. We have further confirmed the validity of RIA and the universality of the density functional PC-PK1. This work also provides a good basis to incorporate the ab-initio relativistic chiral force and the medium effect using G-matrix to the present RIA framework.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
