Instantaneous Bethe-Salpeter Equation with Exact Propagators

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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.
11 pages

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High Energy Physics - Theory, High Energy Physics - Phenomenology, Nuclear Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/95684

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-th/0507281
 http://arxiv.org/abs/hep-th/0507281
 J.Phys. G31 (2005) 1133-1140

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arXiv