Search for Anomalous WW and WZ Production in ppbar Collisions at sqrt(s) = 1.8 TeV

TL;DR

This paper reports a search for anomalous WW and WZ production in proton-antiproton collisions at 1.8 TeV, setting limits on anomalous coupling parameters based on observed events and transverse momentum spectra.

Contribution

First to analyze WW and WZ production at this energy with specific limits on anomalous couplings using Tevatron data from 1992-1993.

Findings

Set limits on anomalous WWgamma and WWZ couplings at 95% CL.

Used transverse momentum spectrum to constrain new physics.

Analyzed 13.7 pb^-1 of data from Fermilab Tevatron.

Abstract

We present results from a search for anomalous WW and WZ production in ppbar collisions at sqrt(s) = 1.8 TeV. We used ppbar->evjjX events observed during the 1992-1993 run of the Fermilab Tevatron collider, corresponding to an integrated luminosity of 13.7 +- 0.7 pb^-1. A fit to the transverse momentum spectrum of the W boson yields direct limits on the CP-conserving anomalous WWgamma and WWZ coupling parameters of -0.9 < delta kappa < 1.1 (with lambda = 0) and -0.6 < lambda < 0.7 (with delta kappa = 0) at the 95% confidence level, for a form factor scale Lambda = 1.5 TeV, assuming that the WWgamma and WWZ coupling parameters are equal.