Instantaneous Bethe-Salpeter Equation with Exact Propagators

Details Instantaneous Bethe-Salpeter Equation with Exact Propagators Instantaneous Bethe-Salpeter Equation with Exact Propagators

2005-07-28

arxiv.org/abs/hep-th/0507281v2

J.Phys. G31 (2005) 1133-1140

Physics

High Energy Physics

High Energy Physics - Theory

11 pages

Scientific paper

Consequent application of the instantaneous approximation to both the interaction and all propagators of the bound-state constituents allows us to forge, within the framework of the Bethe-Salpeter formalism for the description of bound states, an instantaneous form of the Bethe-Salpeter equation with exact (i.e., full) propagators of the bound-state constituents. This instantaneous equation generalizes the well-known Salpeter equation the derivation of which needs the additional assumption of free propagation of the bound-state constituents.

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