Diboson Production at D0

TL;DR

This paper reports measurements of diboson production at the D0 experiment, including observations of ZZ and Zgamma processes, and sets new limits on anomalous gauge couplings using various leptonic and semi-leptonic final states.

Contribution

It provides the first observation of ZZ production in leptonic final states and sets the most stringent limits on anomalous gauge couplings from a hadron collider to date.

Findings

Observation of ZZ production in leptonic final states

First limits on anomalous Zgammagamma and ZZgamma TGCs from a hadron collider

Most stringent limits on WWZ and WWgamma TGCs achieved

Abstract

We present recent diboson production measurements from the D0 experiment at Fermilab's Tevatron collider. The production of ZZ was observed using leptonic final states. Zgamma->nunugamma was observed and used to set the most stringent limits from a hadron collider on anomalous Zgammagamma and ZZgamma trilinear gauge couplings (TGCs). WW events with leptonic final states and WW+WZ events with semi-leptonic final states were used to set limits on anomalous WWZ and WWgamma TGCs. Finally, limits on anomalous WWZ and WWgamma TGCs were obtained from a combination of the fully-leptonic Wgamma, WW, and WZ channels and the semi-leptonic WW and WZ channels, giving the most stringent limits from a hadron collider.