We have searched for a heavy neutral gauge boson, Z', using the decay
channel Z' --> ee. The data were collected with the DO detector at the
Fermilab Tevatron during the 1992-1993 <p(p)over bar> collider run at
root s = 1.8 TeV from an integrated luminosity of 15 +/- 1 pb(-1). Li
mits are set on the cross section times branching ratio for the proces
s <p(p)over bar> --> Z' --> ee as a function of the Z' mass. We exclud
e the existence of a Z' of mass less than 490 GeV/c(2), assuming a Z'
with the same coupling strengths to quarks and leptons as the standard
model Z boson.