Numerical investigations of the three-dimensional proton-proton screened Coulomb t-matrix

TL;DR

This paper presents a numerical method to accurately compute the three-dimensional screened Coulomb t-matrix in momentum space, which is crucial for few-body physics calculations involving screened Coulomb interactions.

Contribution

It introduces a reliable numerical approach to solve the three-dimensional Lippmann-Schwinger equation for the screened Coulomb t-matrix with various screening types.

Findings

Successful numerical solutions for different screening types.

Demonstrated the reliability of the method for few-body calculations.

Validated the approach with example results.

Abstract

We demonstrate behaviour of the momentum space screened Coulomb t-matrix, obtained by a numerical solution of the three-dimensional Lippmann-Schwinger equation. Examples are given for different types of screening. They prove that it is possible to obtain numerically a reliable three-dimensional screened Coulomb t-matrix, what is important in view of its application in few-body calculations.