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Phys. Rev. Lett. 75, 3997–4002 (1995)

Study of tt̅ Production in pp̅ Collisions Using Total Transverse Energy

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F. Abe et al.
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Received 12 June 1995; published in the issue dated 27 November 1995

We analyze a sample of W+jet events collected with the Collider Detector at Fermilab (CDF) in pp̅ collisions at s=1.8 TeV to study tt̅ 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 tt̅ production. However, this distribution agrees well with a linear combination of background and tt̅ events, the agreement being best for a top mass of 180 GeV/c2.

© 1995 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.75.3997
DOI:
10.1103/PhysRevLett.75.3997
PACS:
14.65.Ha, 13.85.Ni, 13.85.Qk