The Bethe-Salpeter equation for mesons as quark — anti-quark bound states in a soliton background

Abstract
A program is provided which solves the Bethe-Salpeter equation for meson fields which are bound in the background field of a localized soliton configuration. To this end the energy and the properly normalized wave-function of the bound state are obtained by identifying the vanishing eigenvalue of the bilocal Bethe-Salpeter kernel. Special care is taken to minimize the computational time needed to obtain the bound state energy.

Title of program: bpwave
Catalogue Id: ACVC_v1_0

Nature of problem
The program calculates the bound state energy of a P-wave kaon fluctuation in the background field of the chiral soliton in the Nambu- Jona-Lasinio model [1]. Also the bound state wave-function is evaluated and normalized to carry unit strangeness charge [2].

Versions of this program held in the CPC repository in Mendeley Data
ACVC_v1_0; bpwave; 10.1016/0010-4655(94)90131-7

This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)