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Experimental Study of the Triple-Gluon Vertex

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Experimental Study of the Triple-Gluon Vertex

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dc.contributor.author	DELPHI Collaboration
dc.contributor.author	Allen, Paul
dc.contributor.author	Alted Abad, Francesc Josep
dc.contributor.author	Benlloch Baviera, José María
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Contreras González, José Luis
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	Fez Laso, M. D. M. de
dc.contributor.author	Gómez Cadenas, Juan José
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Lozano Bahilo, José Julio
dc.contributor.author	Llosá Reig, Rafael
dc.contributor.author	Sánchez Rojo, María Ester
dc.contributor.author	Sánchez Martínez, Javier
dc.contributor.author	Valls Ferrer, Juan Antonio
dc.contributor.author	Velasco González, Jorge
dc.contributor.author	Zúñiga Román, Juan
dc.date.accessioned	2016-05-23T11:52:17Z
dc.date.available	2016-05-23T11:52:17Z
dc.date.issued	1991
dc.identifier.citation	DELPHI Collaboration Allen, Paul Alted Abad, Francesc Josep Benlloch Baviera, José María Castillo Giménez, María Victoria Contreras González, José Luis Ferrer Soria, Antonio Fuster Verdú, Juan A. Fez Laso, M. D. M. de Gómez Cadenas, Juan José Hernández Rey, Juan José Higón Rodríguez, Emilio Lozano Bahilo, José Julio Llosá Reig, Rafael Sánchez Rojo, María Ester Sánchez Martínez, Javier Valls Ferrer, Juan Antonio Velasco González, Jorge Zúñiga Román, Juan 1991 Experimental Study of the Triple-Gluon Vertex Physics Letters B 255 3 466 476
dc.identifier.uri	http://hdl.handle.net/10550/53683
dc.description.abstract	In four-jet events from e + e − →Z 0 →multihadrons one can separate the three principal contributions from the triple-gluon vertex, double gluon-bremsstrahlung and the secondary quark-antiquark production, using the shape of the two-dimensional angular distributions in the generalized Nachtmann-Reiter angle θ NR ∗ and the opening angle of the secondary jets. Thus one can identify directly the contribution from the triple-gluon vertex without comparison with a specific non-QCD model. Applying this new method to events taken with the DELPHI-detector we get for the ratio of the colour factor N c to the fermionic Casimir operator C F : N c C F = 2.55 ± 0.55 ( stat. ) ± 0.4 ( fragm. + models ) ± 0.2 ( error in bias ) in agreement with the value 2.25 expected in QCD from N c =3 and C F = 4 3 .
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 1991, vol. 255, num. 3, p. 466-476
dc.subject	Física nuclear
dc.title	Experimental Study of the Triple-Gluon Vertex
dc.type	journal article	es_ES
dc.date.updated	2016-05-23T11:52:17Z
dc.identifier.doi	10.1016/0370-2693(91)90796-S
dc.identifier.idgrec	070963
dc.rights.accessRights	open access	es_ES