Search for WW and WZ resonances decaying to electron, missing ET, and two jets in pp̄ collisions at √s=1.96TeV.

Using data from 2.9 fb{sup -1} 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{sup '}, and W{sup '} bosons. By comparing these limits to theoretical cross sections, mass exclusion regions for the three particles are derived. The mass exclusion regions for Z{sup '} and W{sup '} are further evaluated as a function of their gauge coupling strength.