Experimental Study of the Triple-Gluon Vertex
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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.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.rights.uri info:eu-repo/semantics/openAccess
dc.source 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.subject Física nuclear
dc.title Experimental Study of the Triple-Gluon Vertex
dc.type info:eu-repo/semantics/article
dc.date.updated 2016-05-23T11:52:17Z
dc.identifier.doi http://dx.doi.org/10.1016/0370-2693(91)90796-S
dc.identifier.idgrec 070963

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