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Heavy-quark decomposition of the s-matrix and its relation to the pinch technique

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dc.contributor.author	Papavassiliou, Joannis
dc.contributor.author	Philippides, Kostas
dc.contributor.author	Schaden, Martin
dc.date.accessioned	2015-04-10T08:00:31Z
dc.date.available	2015-04-10T08:00:31Z
dc.date.issued	1995
dc.identifier.citation	Papavassiliou, Joannis Philippides, Kostas Schaden, Martin 1995 Heavy-quark decomposition of the s-matrix and its relation to the pinch technique Physical Review D 51 11 6364 6368
dc.identifier.uri	http://hdl.handle.net/10550/42985
dc.description.abstract	We propose a decomposition of the S-matrix into individually gauge invariant sub-amplitudes, which are kinematically akin to propagators, vertices, boxes, etc. This decompsition is obtained by considering limits of the S-matrix when some or all of the external particles have masses larger than any other physical scale. We show at the one-loop level that the effective gluon self-energy so defined is physically equivalent to the corresponding gauge independent self-energy obtained in the framework of the pinch technique. The generalization of this procedure to arbitrary gluonic n-point functions is briefly discussed.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 1995, vol. 51, num. 11, p. 6364-6368
dc.subject	Física
dc.title	Heavy-quark decomposition of the s-matrix and its relation to the pinch technique
dc.type	journal article	es_ES
dc.date.updated	2015-04-10T08:00:31Z
dc.identifier.doi	10.1103/PhysRevD.51.6364
dc.identifier.idgrec	091127
dc.rights.accessRights	open access	es_ES