4 papers
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…
Fano theory for hadronic resonances: the rho meson and the pionic continuum
N. E. Ligterink
We develop a model-independent analysis of hadronic scattering data in the resonance region, where the resonance shape follows from the matrix elements of a Hamiltonian. We investi…
Constructing States and Effective Hamiltonians in Lattice QCD
N. E. Ligterink
We formulate SU(3) Hamiltonian lattice QCD in terms of the plaquette variables and determine the relevant subspaces of the Hilbert space for the vacuum wave functional and its appr…
The scalar field-theoretical Coulomb problem
N. E. Ligterink, B. L. G. Bakker
We analyze the fully relativistic, field-theoretical treatment of the scalar Coulomb problem. We work in a truncated Hilbert-Fock space containing the two-constituent states and th…