https://doi.org/10.1140/epja/s10050-020-00331-5
Regular Article – Theoretical Physics
Diving into Raynal’s DWBA code
1
CEA,DAM,DIF, F-91297, Arpajon, France
2
Department of Physics—FCFM, University of Chile, Av. Blanco Encalada 2008, Santiago, Chile
3
Department of Theoretical Physics, Research School of Physics, The Australian National University, ACT 2601, Canberra, Australia
4
Université Paris-Saclay, CEA, Laboratoire Matière en Conditions Extrêmes, Bruyères-le-Châtel, France
Received:
30
November
2020
Accepted:
14
December
2020
Published online:
7
January
2021
The study of nucleon-nucleus elastic scattering for spherical targets amounts to solving Schrödinger equation with a given optical potential. This potential can be obtained microscopically by taking as a starting point the interaction between two nucleons. It can also be obtained in a phenomenological way by postulating the geometry of potential and fitting parameters to reproduce experimental data. Microscopic approaches show in general terms that optical potentials are nonlocal, energy-dependent, complex and dispersive. The nonlocality of the potential leads to an integro-differential equation for the wavefunction. We present here a new version of SIDES (Schrödinger Integro-Differential Equation Solver), a code developed with the participation of Jacques Raynal, extended for nonlocal potentials with first-derivative terms.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
