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This Letter describes the current most precise measurement of the $WZ$production cross section as well as limits on anomalous $WWZ$ couplings at acenter-of-mass energy of 1.96 TeV in proton-antiproton collisions for theCollider Detector at Fermilab (CDF). $WZ$ candidates are reconstructed fromdecays containing three charged leptons and missing energy from a neutrino,where the charged leptons are either electrons or muons. Using data collectedby the CDF II detector (7.1 fb$^{-1}$ of integrated luminosity), 63 candidateevents are observed with the expected background contributing $8 \pm 1$ events.The measured total cross section $\sigma (p \bar p \to WZ) =3.93_{-0.53}^{+0.60}(\text{stat})_{-0.46}^{+0.59}(\text{syst}) $ pb is in goodagreement with the standard model prediction of $3.50\pm 0.21$. The same sampleis used to set limits on anomalous $WWZ$ couplings.

Measurement of the $WZ$ Cross Section and Triple Gauge Couplings in $p \bar p$ Collisions at $\sqrt{s} = 1.96$ TeV