Search for Quark-Lepton Compositeness and a Heavy \u3ci\u3eW\u3c/i\u3e′ Boson Using the eν Channel in \u3ci\u3epp̅\u3c/i\u3e Collisions at √s = 1.8 TeV

We present searches for quark-lepton compositeness and a heavy W′ boson at high electron-neutrino transverse mass. We use ~110 pb-1 of data collected in pp̅ collisions at √s= 1.8 TeV by the CDF Collaboration during 1992–1995. The data are consistent with standard model expectations. Limits are set on the quark-lepton compositeness scale Λ, the ratio of partial cross sections σ (W′ → eν)/ σ (W → eν), and the mass of a W′ boson with standard model couplings. We exclude Λ\u3c 2.81 TeV and a W′ boson with mass below 754 GeV/c2 at the 95% confidence level. Combining with our previously published limit obtained using the muon channel, we exclude a W′ boson with mass below 786 GeV/c2 at the 95% confidence level