dc.identifier.uri |
http://dx.doi.org/10.15488/9229 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/9282 |
|
dc.contributor.author |
Sales, J.H.O.
|
|
dc.contributor.author |
Frederico, T.
|
|
dc.contributor.author |
Carlson, B.V.
|
|
dc.contributor.author |
Sauer, Peter Ulrich
|
|
dc.date.accessioned |
2020-01-15T08:50:09Z |
|
dc.date.available |
2020-01-15T08:50:09Z |
|
dc.date.issued |
2000 |
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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: https://doi.org/10.1103/PhysRevC.61.044003 |
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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 |
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dc.publisher |
College Park, MD : American Physical Society |
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dc.relation.ispartofseries |
Physical Review C 61 (2000), Nr. 4 |
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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 |
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dc.relation.essn |
1089-490X |
|
dc.relation.essn |
2469-9993 |
|
dc.relation.issn |
0556-2813 |
|
dc.relation.issn |
2469-9985 |
|
dc.relation.doi |
https://doi.org/10.1103/PhysRevC.61.044003 |
|
dc.bibliographicCitation.issue |
4 |
|
dc.bibliographicCitation.volume |
61 |
|
dc.bibliographicCitation.firstPage |
44003 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
|