https://doi.org/10.1051/epjconf/202429202002
Construction of density-dependent α-nucleon interaction to describe α-nucleus scattering
1 College of Education, Yokohama National University, Yokohama 240-8501, Japan
2 National Institute of Technology, Asahikawa College, Asahikawa 071-8142, Japan
3 Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan
4 Department of Physics, Osaka Metropolitan University, Osaka 558-8585, Japan
5 Nambu Yoichiro Institute of Theoretical and Experimental Physics (NITEP), Osaka Metropolitan University, Osaka 558-8585, Japan
6 RIKEN Nishina Center, Wako 351-0198, Japan
7 Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
* e-mail: furumoto-takenori-py@ynu.ac.jp
Published online: 14 March 2024
We provide a global density-dependent α-nucleon (DD-αN) interaction to construct the α-nucleus optical potential in a wide range of incident energies. The α-nucleus potential based on the folding model with the present DD-αN interaction reproduces the experimental data up to backward angles using the point-nucleon density obtained by the mean-field model. The present DD-αN interaction is based on the phenomenological optical potential to reproduce the p + 4He elastic scattering at the incident energies at 12.04–1000 MeV. Namely, the α-nucleon system is considered an elementary process. The density dependence (medium effect) of the DD-αN interaction is phenomenologically added to reproduce the α elastic scatterings by the 16O, 40Ca, 58Ni, 90Zr and 208Pb targets at E/A = 10–342.5 MeV. The total reaction cross sections are also compared with the experimental data.
© 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.
