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Study of triple-gauge-boson couplings ZZZ, ZZγ and Zγγ at LEP

AuthorsAbdallah, J.; Ferrer, Antonio ; García García, Carmen ; Perepelitsa, Vassil; Salt, José ; Fuster, Juan ; Tortosa, Pablo ; Martínez-Rivero, Celso ; Matorras, Francisco ; Piedra, Jonatan ; Costa, María José ; Cuevas, Javier ; Rodríguez, David; Marco, Jesús ; Marco, Rafael ; Oyanguren, Arantza ; Fernández Menéndez, Javier
KeywordsMonte Carlo Event Generator
E(+)e(-) Collisions
DELPHI (DEtector with Lepton, Photon and Hadron Identification)
High Energy Physics
Issue Date5-Jul-2007
CitationEuropean Physical Journal C 51(3): 525-542 (2007)
AbstractNeutral triple-gauge-boson couplings ZZZ, ZZγ and Zγγ have been studied with the DELPHI detector using data at energies between 183 and 208 GeV. Limits are derived on these couplings from an analysis of the reactions e+e- -> Zγ, using data from the final states γ f fbar, with f = q or v, from e+e- -> ZZ, using data from the four-fermion final states q qbar q qbar, q qbar μ+ μ-, q qbar e+ e-, q qbar v vbar, μ+ μ- v vbar and e+ e- v vbar, and from e+e- -> Zγ*, in which the final state γ is off mass-shell, using data from the four-fermion final states q qbar e+ e- and q qbar μ+ μ-. No evidence for the presence of such couplings is observed, in agreement with the predictions of the Standard Model.
Description18 páginas, 10 figuras, 6 tablas.-- El Pdf del artículo es la versión pre-print: arXiv:0706.2741v1.-- DELPHI Collaboration: et al.
Publisher version (URL)http://dx.doi.org/10.1140/epjc/s10052-007-0345-0
Appears in Collections:(IFCA) Artículos
(IFIC) Artículos
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