SWANLOP : Scattering waves off nonlocal optical potentials in the presence of Coulomb interactions
| Autor: | Arellano, H. F., Blanchon, G. |
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| Rok vydání: | 2020 |
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| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.cpc.2020.107543 |
| Popis: | 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. Comment: Accepted for publication in Computer Physics Communications. Code available at CPC web site or by request to HFA. PLB page number corrected in Abstract |
| Databáze: | arXiv |
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