ttbar production cross section in ppbar collisions at sqrt{s} = 1.8 TeV

TL;DR

This paper reports a measurement of the top-antitop quark pair production cross section in proton-antiproton collisions at 1.8 TeV, using data from the Dzero experiment collected over several years.

Contribution

It provides the first comprehensive measurement of the ttbar production cross section across nine decay channels at this energy.

Findings

Measured cross section: 5.69 pb with uncertainties

Observed 80 candidate events against 38.8 background

Results consistent with Standard Model predictions

Abstract

Results are presented on a measurement of the ttbar pair production cross section in ppbar collisions at sqrt{s} = 1.8 TeV from nine independent decay channels. The data were collected by the Dzero experiment during the 1992-1996 run of the Fermilab Tevatron Collider. A total of 80 candidate events are observed with an expected background of 38.8 +- 3.3 events. For a top quark mass of 172.1 GeV/c^2, the measured cross section is 5.69 +- 1.21 (stat) +- 1.04 (sys) pb.