Triple and quartic gauge couplings at LEP 2

R. Brunelière

doi:10.1140/epjcd/s2004-03-1625-3

EPJ

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2023 Impact factor 4.2

Particles and Fields

Open Access

Eur Phys J C (2004) 33: s709-s713
https://doi.org/10.1140/epjcd/s2004-03-1625-3

PS07 Tests of the Standard Model

Triple and quartic gauge couplings at LEP 2

R. Brunelière

Laboratoire d’Annecy-le-Vieux de Physique des Particules, Chemin de Bellevue, 74941 Annecy-le-Vieux Cedex, France

Received: 29 October 2003
Accepted: 14 January 2004
Published online: 3 February 2004

Abstract

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 ( $700\ \mathrm{pb}^{-1}$ 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, $q\bar{q}\gamma\gamma$ and $\nu\bar{\nu}\gamma\gamma$ events. No strong deviations from the Standard Model expectations are found.