Measurement of trilinear gauge boson couplings WWV, (V Z,gamma) in e(+)e(-) collisions at 189 GeV
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Measurement of trilinear gauge boson couplings WWV, (V Z,gamma) in e(+)e(-) collisions at 189 GeV

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Measurement of trilinear gauge boson couplings WWV, (V Z,gamma) in e(+)e(-) collisions at 189 GeV

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DELPHI Collaboration; Castillo Giménez, María Victoria Perfil; Cortina Gil, Eduardo; Costa Mezquita, María José; Ferrer Soria, Antonio Perfil; Fuster Verdú, Juan A. Perfil; García García, Carmen Perfil; Gil Botella, Inés; Hernández Rey, Juan José Perfil; Higón Rodríguez, Emilio Perfil; Perepelitsa, V.; Oyanguren Campos, Arantza Perfil; Salt Cairols, José Perfil; Tortosa Martínez, Pablo
Aquest document és un/a article, creat/da en: 2001

Este documento está disponible también en : http://dx.doi.org/10.1016/S0370-2693(01)00135-6
Measurements of the trilinear gauge boson couplings WWgamma and WWZ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189 GeV and combined with DELPHI data at 183 GeV. Values are determined for Delta(g_1^Z) and Delta(kappa_gamma), the differences of the WWZ charge coupling and of the WWgamma dipole coupling from their Standard Model values, and for lambda_gamma, the WWgamma quadrupole coupling. A measurement of the magnetic dipole and electric quadrupole moment of the W is extracted from the results for Delta(kappa_gamma) and lambda_gamma. The study uses data from the final states jjlv, jjjj, lX, jjX and gammaX, where j represents a quark jet, l an identified lepton and X missing four-momentum. The observations are consistent with the predictions of the Standard Model.

    DELPHI Collaboration Castillo Giménez, María Victoria Cortina, E. Costa Mezquita, María José Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gil, I. Hernández Rey, Juan José Higón Rodríguez, Emilio Perepelitsa, V. Oyanguren, A. Salt Cairols, José ,Tortosa Martínez, Pablo, 2001 Measurement of trilinear gauge boson couplings WWV, (V Z,gamma) in e(+)e(-) collisions at 189 GeV Physics Letters B 502 1-4 9 23
http://dx.doi.org/10.1016/S0370-2693(01)00135-6
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