Observation of $WZ$ Production

Journal Article (Academic article)

We report the first observation of the associated production of a W boson and a Z boson. This result is based on 1.1 fb-1 of integrated luminosity from p[overline p] collisions at sqrt(s)=1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We observe 16 WZ candidates passing our event selection with an expected background of 2.7$\pm$0.4 events. A fit to the missing transverse energy distribution indicates an excess of events compared to the background expectation corresponding to a significance equivalent to 6 standard deviations. The measured cross section is sigma(p[overline p]-->WZ)=5.0-1.6+1.8 pb, consistent with the standard model expectation.

Full Text

Duke Authors

Cited Authors

  • Abulencia, ; A, ; others,

Published Date

  • 2007

Published In

  • Phys. Rev. Lett.

Volume / Issue

  • 98 /

Start / End Page

  • 161801 -

PubMed ID

  • 17501412