Measurement of the $WZ\to \ell \nu \ell \ell$ cross section and limits on anomalous triple gauge couplings in $p\bar{p}$ collisions at $\sqrt{s}$ = 1.96 TeV

Abstract

We present a new measurement of the $WZ\to \ell \nu \ell \ell$ ($\ell =e,\mu$) cross section and limits on anomalous triple gauge couplings. Using 4.1 fb${}^{-1}$ of integrated luminosity of $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV, we observe 34 $WZ$ candidate events with an estimated background of $6.0\pm 0.4$ events. We measure the $WZ$ production cross section to be $3.90_{-0.90}^{+1.06}$ pb, in good agreement with the standard model prediction. We find no evidence for anomalous $WWZ$ couplings and set 95% C.L. limits on the coupling parameters, $-0.075<{\lambda }_Z<0.093$ and $-0.027<\Delta {\kappa }_Z<0.080$, in the HISZ parameterization for a $\Lambda =2$ TeV form factor scale. These are the best limits to date obtained from the direct measurement of the $WWZ$ vertex.

8 pages, 7 figures, 2 tables

References in corpus (6)

• PYTHIA 6.4 Physics and Manual
• Implications of CTEQ global analysis for collider observables
• LHC Signals for Warped Electroweak Charged Gauge Bosons
• Low-Scale Technicolor at the Tevatron and LHC
• LHC Signatures of New Gauge Bosons in the Minimal Higgsless Model
• Measurement of the p\bar{p}\to WZ + X cross section at \sqrt{s}=1.96 TeV and limits on WWZ trilinear gauge couplings

Cited by in corpus (5)

• Vector boson pair production at the LHC
• Measurements of the pp $\to$ WZ inclusive and differential production cross section and constraints on charged anomalous triple gauge couplings at $\sqrt{s}=$ 13 TeV
• Measurement of the inclusive and differential WZ production cross sections, polarization angles, and triple gauge couplings in pp collisions at $\sqrt{s}=$ 13 TeV
• Role of polarizations and spin-spin correlations of $W^{\prime }s$ in $e^{-}{e}^{+}\to W^{-}{W}^{+}$ at $\sqrt{s}=250$ GeV to probe anomalous $W^{-}{W}^{+}Z/\gamma$ couplings
• Review of Physics Results from the Tevatron: Electroweak Physics