Search for Additional Gauge Bosons

We have searched for evidence of W^ ' to enu and Z^ ' to ee in data collected with the DO detector at the Tevatron during the 1992-1993 p | p collider run at sqrt{s } = 1.8 TeV. We set an upper limit at the 95% confidence level on the cross section times branching ratio for W^' to enu, assuming that the neutrino from W^ ' decay is stable and has a mass significantly less than m_{W^'}, and an upper limit on Z^' to ee. We exclude the existence of a W ^' of mass less than 610 GeV and a Z^' of mass less than 490 GeV at the 95% confidence level, assuming standard model couplings to quarks and leptons.