F. Abe et al., STUDY OF T(T)OVER-BAR PRODUCTION IN P(P)OVER-BAR COLLISIONS USING TOTAL TRANSVERSE ENERGY, Physical review letters, 75(22), 1995, pp. 3997-4002
We analyze a sample of W + jet events collected with the Collider Dete
ctor at Fermilab (CDF) in p (p) over bar collisions at root s = 1.8 Te
V to study t (t) over bar production. We employ a simple kinematical v
ariable 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 mor
e jets, the shape of the H distribution deviates by 3.8 standard devia
tions from that expected from known backgrounds to t (t) over bar prod
uction. However, this distribution agrees well with a linear combinati
on of background and t (t) over bar events, the agreement being best f
or a top mass of 180 GeV/c(2).