PS07 Tests of the Standard Model
Triple and quartic gauge couplings at LEP 2
Laboratoire d’Annecy-le-Vieux de Physique des Particules, Chemin de Bellevue, 74941 Annecy-le-Vieux Cedex, France
Accepted: 14 January 2004
Published online: 3 February 2004
We review the status of published and preliminary measurements of triple and quartic gauge boson couplings from the four LEP experiments. Charged current triple gauge boson couplings (WWZ and WWγ) are measured using W-pair, single-W and single-γ productions with the data collected between 1997 and 2000 ( per experiment). Neutral current triple gauge boson couplings are studied with Zγ (Zγ γ * and ZγZ* vertices) and ZZ (ZZγ * and ZZZ* vertices) events. Limits on anomalous quartic gauge boson couplings with at least one photon (WWγ γ, WWZγ and ZZγ γ) are set from WWγ, and events. No strong deviations from the Standard Model expectations are found.
© Società Italiana di Fisica, Springer-Verlag, 2004