Search for new gauge bosons decaying into dielectrons in p-barp collisions at sqrt s=1.8 TeV.
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1995 The American Physical Society We have searched for heavy neutral gauge bosons (Z') in pp collisions at s=1.8 TeV. The data were obtained using the CDF detector during the 1992-1993 run corresponding to an integrated luminosity of 19.70.7 pb-1. We present a 95% confidence level upper limit on the production cross section times the branching ratio of Z' decaying into dielectrons as a function of Z' mass. Assuming standard model coupling strengths, we exclude a Z' with a mass less than 505 GeV/c2. We also present lower mass limits for Z' bosons from E6 models and the alternative left-right model.