EPJ

2024 Impact factor 4.8
EPJ C - Particles and Fields
Particles and Fields
Eur. Phys. J. C 14, 103-110
DOI 10.1007/s100520000399

Anomalous quartic couplings in $W^+W^-\gamma$, $Z^0Z^0\gamma$ and $Z^0\gamma\gamma$ production at present and future e+e- colliders

W. J. Stirling1,2 - A. Werthenbach1

1 Department of Physics, University of Durham, Durham DH1 3LE, UK
2 Department of Mathematical Sciences, University of Durham, Durham DH1 3LE, UK

Received: 11 March 1999 / Revised version: 14 May 1999 /
Published online: 6 April 2000 - © Springer-Verlag 2000

Abstract
The production of three electroweak gauge bosons in high-energy e+e- collisions offers a window on anomalous quartic gauge boson couplings. We investigate the effect of three possible anomalous couplings on the cross sections for $W^+W^-\gamma$, $Z^0Z^0\gamma$ and $Z^0\gamma\gamma$ productions at LEP2 ( $\sqrt{s} = 200$ GeV) and at a future linear collider ( $\sqrt{s} = 500$ GeV). We find that the combination of energies and processes provides reasonable discrimination between the various anomalous contributions.

Copyright Società Italiana di Fisica, Springer-Verlag 2000

Conference announcements