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| Título: | Measurements of CP-conserving trilinear gauge boson couplings WWV (V gamma, Z) in e(+)e(-) collisions at LEP2 |
Autor: | Abdallah, J.; Costa, María José CSIC ORCID; Ferrer, Antonio CSIC ORCID; Fuster, Juan CSIC ORCID; García García, Carmen CSIC ORCID; Oyanguren, Arantza CSIC ORCID; Perepelitsa, Vassil; Salt, José CSIC ORCID; Tortosa, Pablo CSIC; Abreu, P. | Fecha de publicación: | mar-2010 | Editor: | Springer Nature | Citación: | European Physical Journal C 66(1-2): 35-56 (2010) | Resumen: | The data taken by DELPHI at centre-of-mass energies between 189 and 209 GeV are used to place limits on the CP-conserving trilinear gauge boson couplings Delta g(1)(Z), lambda(gamma) and Delta k(gamma) associated to W+W- and single W production at LEP2. Using data from the jjl nu, jjjj, jjX and lX final states, where j,l and X represent a jet, a lepton and missing four-momentum, respectively, the following limits are set on the couplings when one parameter is allowed to vary and the others are set to their Standard Model values of zero: Delta g(1)(Z) =-0.025-(+0.033)(0.030,), lambda(gamma) = 0.002(-0.035)(+0.035) and Delta k(gamma) = 0.024(-0.081)(+0.077). Results are also presented when two or three parameters are allowed to vary. All observations are consistent with the predictions of the Standard Model and supersede the previous results on these gauge coupling parameters published by DELPHI. | Descripción: | 22 páginas, 12 figuras, 8 tablas.-- DELPHI Collaboration: et al.-- El Pdf del artículo es la versión pre-print: 1002.0752v1. | Versión del editor: | http://dx.doi.org/10.1140/epjc/s10052-010-1254-1 | URI: | http://hdl.handle.net/10261/24541 | DOI: | 10.1140/epjc/s10052-010-1254-1 | ISSN: | 1434-6044 |
| Aparece en las colecciones: | (IFIC) Artículos (IFCA) Artículos |
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| Fichero | Descripción | Tamaño | Formato | |
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| Trilinear.pdf | 486,82 kB | Adobe PDF |  Visualizar/Abrir |
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