$Wγ$ and $Zγ$ Production at Tevatron

Abstract

We present results from CDF and DØ on $Wγ$ and $Zγ$ productions in $p\bar{p}$ collisions at $\sqrt{s}=1.8~{\rm TeV}.$ The goal of the analyses is to test the non-abelian self-couplings of the $W$, $Z$ and photon, one of the most direct consequences of the $SU(2)_L\otimes U(1)_Y$ gauge symmetry. We present direct measurements of $WWγ$ couplings and limits on $ZZγ$ and $Zγγ$ couplings, based on $p\bar{p}\rightarrow \ellνγ+ X$ and $p\bar{p}\rightarrow \ell\ellγ+X$ events, respectively, observed during the 1992--1993 run of the Fermilab Tevatron Collider.