Search for Electroweak Production of Single Top Quarks at DZero

TL;DR

This paper reports a search for electroweak single top quark production at Fermilab's Tevatron collider, setting upper limits on production cross sections using data from the DZero detector.

Contribution

First search for electroweak single top production at Tevatron using DZero data, establishing upper limits on cross sections for s- and t-channel processes.

Findings

Upper limit on s-channel cross section: 39 pb

Upper limit on t-channel cross section: 58 pb

Used ~90 pb^-1 of data from Fermilab Tevatron Run 1

Abstract

This paper discusses a search for electroweak production of single top quarks in the electron+jets and muon+jets decay channels. The measurements use ~90 pb^-1 of data from Run 1 of the Fermilab Tevatron collider, collected at 1.8 TeV with the DZero detector. We use events that include a tagging muon, implying the presence of a b jet, to set an upper limit at the 95% confidence level on the cross section for the s-channel process ppbar->tb+X of 39 pb. The upper limit for the t-channel process ppbar->tqb+X is 58 pb.