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arXiv · 2009.12235

SWANLOP : Scattering waves off nonlocal optical potentials in the presence of Coulomb interactions

H. F. Arellano·G. Blanchon
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Abstract

We introduce the package SWANLOP to calculate scattering waves and corresponding observables for nucleon elastic collisions off spin-zero nuclei. The code is capable of handling local and nonlocal optical potentials superposed to long-range Coulomb interaction. Solutions to the implied Schr\"odinger integro-differential equation are obtained by solving an integral equation of Lippmann-Schwinger type for the scattering wavefunctions, $\psi=\phi_{C} + {G}_{C} {U}_{S}\psi$, providing and exact treatment to the Coulomb force [Phys. Lett. B 789, 256 (2019)]. The package has been developed to handle potentials either in momentum or coordinate representations, providing flexible options under each of them. The code is fully self-contained, being dimensioned to handle any $A\!\geq\!4$ target for nucleon beam energies of up to 1.1 GeV. Accuracy and benchmark applications are presented and discussed.

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H. F. Arellano, G. Blanchon. 2020-09-25. SWANLOP : Scattering waves off nonlocal optical potentials in the presence of Coulomb interactions. https://doi.org/10.1016/j.cpc.2020.107543

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