Search for WW and WZ resonances decaying to electron, missing ET, and two jets in ppbar collisions at sqrt(s) = 1.96 TeV

TL;DR

This paper searches for WW and WZ resonances decaying into electron, neutrino, and jets in proton-antiproton collisions at 1.96 TeV, setting limits on new heavy gauge bosons without observing significant signals.

Contribution

It provides the first limits on W' and Z' bosons decaying into WW or WZ in this channel at Tevatron energies.

Findings

No significant excess observed above background.

Set 95% CL cross section limits on G*, Z', and W' bosons.

Derived mass exclusion regions for the new particles.

Abstract

Using data from 2.9/fb of integrated luminosity collected with the CDF II detector at the Tevatron, we search for resonances decaying into a pair of on-shell gauge bosons, WW or WZ, where one W decays into an electron and a neutrino, and the other boson decays into two jets. We observed no statistically significant excess above the expected standard model background, and we set cross section limits at 95% confidence level on G*(Randall-Sundrum graviton), Z', and W' bosons. By comparing these limits to theoretical cross sections, mass exclusion regions for the three particles are derived. The mass exclusion regions for Z' and W' are further evaluated as a function of their gauge coupling strength.