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hep-ph2005
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…
hep-ph2000
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…