Gauge-invariant 3-boson vertices and their ward identities in the standard model
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Gauge-invariant 3-boson vertices and their ward identities in the standard model

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Gauge-invariant 3-boson vertices and their ward identities in the standard model

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dc.contributor.author Papavassiliou, Joannis
dc.contributor.author Philippides, Kostas
dc.date.accessioned 2015-04-10T07:59:27Z
dc.date.available 2015-04-10T07:59:27Z
dc.date.issued 1995
dc.identifier.uri http://hdl.handle.net/10550/42984
dc.description.abstract In the context of the Standard Model we extend the S--matrix pinch technique for non--conserved currents to the case of three boson vertices. We outline in detail how effective gauge invariant three boson vertices can be constructed, with all three incoming momenta {\it off--shell}. Explicit closed expressions for the vertices γW−W+, ZW−W+, and χW−W+ are reported. The three boson vertices so constructed satisfy naive QED--like Ward identities which relate them to the gauge invariant gauge boson self--energies previously constructed by the same method. The derivation of the aforementioned Ward identities relies on the sole requirement of complete gauge invariance of the S--matrix element considered; in particular, no knowledge of the explicit closed form of the three boson vertices involved is necessary.The validity of one of these Ward identities is demonstrated explicitly, through a detailed diagrammatic one-loop analysis, in the context of three different gauges.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 1995, vol. 52, num. 4, p. 2355-2378
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Papavassiliou, Joannis Philippides, Kostas 1995 Gauge-invariant 3-boson vertices and their ward identities in the standard model Physical Review D 52 4 2355 2378
dc.subject Física
dc.title Gauge-invariant 3-boson vertices and their ward identities in the standard model
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-04-10T07:59:27Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.52.2355
dc.identifier.idgrec 091126

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