Study of tp-bar collisions using total transverse energy.
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We analyze a sample of W+jet events collected with the Collider Detector at Fermilab (CDF) in pp collisions at s=1.8 TeV to study tt production. We employ a simple kinematical variable H, defined as the scalar sum of the transverse energies of the lepton, neutrino, and jets. For events with a W boson and four or more jets, the shape of the H distribution deviates by 3.8 standard deviations from that expected from known backgrounds to tt production. However, this distribution agrees well with a linear combination of background and tt events, the agreement being best for a top mass of 180 GeV/c2. 1995 The American Physical Society.