Relativistic three-quark bound states in separable two-quark approximation

Abstract
Baryons as relativistic bound states in 3-quark correlations are described by an effective Bethe–Salpeter equation when irreducible 3-quark interactions are neglected and separable 2-quark correlations are assumed. We present an efficient numerical method to calculate the nucleon mass and its covariant wave function in this quantum field theoretic quark–diquark model with quark-exchange interaction. Expanding the components of the spinorial wave function in terms of Chebyshev polynomials, the...

Title of program: BSE
Catalogue Id: ADPT_v1_0

Nature of problem
Diquarks are introduced as separable correlations in the two-quark Green's function to facilitate the description of baryons as relativistic three-quark bound states. These states then emerge as solutions of Bethe-Salpeter equations for quarks and diquarks that interact via quark exchange.

Versions of this program held in the CPC repository in Mendeley Data
ADPT_v1_0; BSE; 10.1016/S0010-4655(01)00465-9

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