Search for heavy W bosons in 1.8 TeV pp̅ collisions

Abstract

A search for a heavy charged gauge boson, W', using the decay channels W'→eν and W'→τν→ eννν̅ is reported. The data used in the analysis were collected by the DØ experiment at the Fermilab Tevatron during the 1992-93 pp̅ collider run from an integrated luminosity of 13.9 ± 0.8 pb^-1 at √s=1.8 TeV. Assuming that the neutrino from W' decay is stable and has a mass significantly less than m_W', an upper limit at the 95% confidence level is set on the cross section times branching ratio for pp̅→W'→eν. A W' with the same couplings to quarks and leptons as the standard model W boson is excluded for m_W'< 610 GeV/c².