Gauge Boson Self Couplings and four fermion final states at LEP

TL;DR

This paper reviews four-fermion production measurements at LEP2, providing the first clear evidence for gauge boson self couplings, supporting the non-abelian structure of the electroweak theory at the percent precision.

Contribution

It presents the first clear experimental evidence for gauge boson self couplings in four-fermion production at LEP2, confirming key electroweak model predictions.

Findings

First evidence of gauge boson self couplings

Supports non-abelian SU(2)xU(1) electroweak structure

Measurements agree with theoretical predictions

Abstract

Four-fermion productions measured in the LEP2 data are reviewed. The total and differential cross-section yields represent the first clear evidence for the existence of gauge boson self couplings, in support of the non-abelian SU(2)xU(1) structure of the electroweak model, at the percent level.