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dc.identifier.uri Sales, J.H.O. Frederico, T. Carlson, B.V. Sauer, Peter Ulrich 2020-01-15T08:50:09Z 2020-01-15T08:50:09Z 2000
dc.identifier.citation Sales, J.H.O.; Frederico, T.; Carlson, B.V.; Sauer, P.U.: Light-front Bethe-Salpeter equation. In: Physical Review C 61 (2000), Nr. 4, 044003. DOI:
dc.description.abstract A three-dimensional reduction of the two-particle Bethe-Salpeter equation is proposed. The proposed reduction is in the framework of light-front dynamics. It yields auxiliary quantities for the transition matrix and the bound state. The arising effective interaction can be perturbatively expanded according to the number of particles exchanged at a given light-front time. An example suggests that the convergence of the expansion is rapid. This result is particular for light-front dynamics. The covariant results of the Bethe-Salpeter equation can be recovered from the corresponding auxiliary three-dimensional ones. The technical procedure is developed for a two-boson case; the idea for an extension to fermions is given. The technical procedure appears quite practicable, possibly allowing one to go beyond the ladder approximation for the solution of the Bethe-Salpeter equation. The relation between the three-dimensional light-front reduction of the field-theoretic Bethe-Salpeter equation and a corresponding quantum-mechanical description is discussed. eng
dc.language.iso eng
dc.publisher College Park, MD : American Physical Society
dc.relation.ispartofseries Physical Review C 61 (2000), Nr. 4
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
dc.subject two-particle Bethe-Salpeter equation eng
dc.subject ladder approximation eng
dc.subject quantum-mechanic eng
dc.subject.ddc 530 | Physik ger
dc.title Light-front Bethe-Salpeter equation eng
dc.type Article
dc.type Text
dc.relation.essn 1089-490X
dc.relation.essn 2469-9993
dc.relation.issn 0556-2813
dc.relation.issn 2469-9985
dc.bibliographicCitation.issue 4
dc.bibliographicCitation.volume 61
dc.bibliographicCitation.firstPage 44003
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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