First Evidence of WW/WZ -> lnuqq at the Tevatron

TL;DR

This paper reports the first evidence of WW and WZ boson production with semi-leptonic decays at a hadron collider, using data from the Tevatron, with a measured cross section of 20.2 pb and 4.4 sigma significance.

Contribution

It provides the first experimental evidence of WW/WZ production with semi-leptonic decays at a hadron collider, using Tevatron data.

Findings

Measured cross section of 20.2 pb for WW+WZ production.

Observed significance of 4.4 standard deviations.

First evidence of this process at a hadron collider.

Abstract

We present the first evidence from a hadron collider of WW+WZ production with semi-leptonic decays. The data were recorded by the D0 detector at the Fermilab Tevatron and correspond to 1.07 inverse femtobarn of integrated luminosity obtained in proton-antiproton collisions at sqrt(s) = 1.96 TeV. The cross section observed for WW+WZ production is 20.2 +- 4.5 pb with a significance of 4.4 standard deviations.