63 citations · 176 across the 17 of their papers we have counts for
17 papers
Bound states in Yukawa theory
Axel Weber, Norbert E. Ligterink
A generalization of the Gell-Mann-Low Theorem is applied to bound state calculations in Yukawa theory. The resulting effective Schroedinger equation is solved numerically for two-f…
A Coulomb Gauge Model of Mesons
Norbert Ligterink, Eric S. Swanson
A model of mesons which is based on the QCD Hamiltonian in Coulomb gauge is presented. The model relies on a novel quasiparticle basis to improve the reliability of the Fock space…
Kinematical classification of two-pion production on the nucleon
N. E. Ligterink
We give a full kinematical classification of all the tree-level two-pion photoproduction processes on the nucleon, which consists of seventeen diagrams. It suggests a method of ana…
Three particle states and t-exchanges
Norbert E. Ligterink
The multiple particle final states in modern data from detector experiments offer a wealth of information about higher hadronic resonances and hadron interactions. However, i…
A simple plan for the Delta resonance
N. E. Ligterink
We construct the resonance as a superposition of a bare state and the continuum. It is parametrized by three coupling constants for local and couplings…
Coherent bubble-sum approximation for coupled-channel resonance scattering
N. E. Ligterink
For coupled-channel resonance scattering we derive a model with a closed form solution for the -matrix that satisfies unitarity and analyticity. The two-channel case is handled…