Complex scaling method for three- and four-body scattering above the break-up thresholds

TL;DR

This paper introduces a complex-scaling formalism for solving three- and four-body scattering problems in configuration space, enabling efficient computation of elastic and break-up reactions with various interactions.

Contribution

It presents a novel complex-scaling approach that simplifies few-particle scattering calculations using bound state techniques, applicable to systems with short and long-range forces.

Findings

Efficient computation of elastic reactions

Successful application to A=3,4 systems

Handles both short and long-range interactions

Abstract

A formalism based on the complex-scaling method is presented to solve the few particle scattering problem in configuration space using bound state techniques with trivial boundary conditions. Several applications to A=3,4 systems are presented to demonstrate the efficiency of the method in computing elastic as well as break-up reactions with Hamiltonians including both short and long-range interaction.