Search for the Top Quark in Dimuon Events at D0

I report on a search for the top quark through the decay mode t| t to mumu + X in pp collisions at a center of mass energy of sqrt{s } = 1.8 TeV, using the DO detector on the Tevatron collider at the Fermi National Accelerator Laboratory. The analysis is based on 11 pb^{-1} of data collected during the 1992-93 collider run. A search was performed for top-antitop decay into two muon final states. No event candidates were observed with an expected background of 0.37 +/- 0.02(stat.) +/- 0.05(sys.) +/- 0.04(lum) events.