Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.96 TeV in dilepton final states

We present a measurement of the top quark pair (a) production cross section in pp collisions at root s = 1.96 TeV using events with two charged leptons in the final state. This analysis utilizes an integrated luminosity of 224-243 pb(-1) collected with the DO detector at the Fermilab Tevatron Collid...

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Bibliographic Details
Published inPhysics letters. B Vol. 626; p. 55
Main Authors Abazov, V. M., Åsman, Barbro, Clément, Christophe, Gollub, Nils, Lager, Sara, Strandberg, Jonas, Zverev, E.G., et al
Format Journal Article
LanguageEnglish
Published 20.10.2005
Subjects
Fysik
NATURAL SCIENCES
NATURVETENSKAP
Physics
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Summary:We present a measurement of the top quark pair (a) production cross section in pp collisions at root s = 1.96 TeV using events with two charged leptons in the final state. This analysis utilizes an integrated luminosity of 224-243 pb(-1) collected with the DO detector at the Fermilab Tevatron Collider. We observe 13 events in the e(+)e(-), e mu and mu(+)mu(-) channels with an expected background of 3.2 +/- 0.7 events. For a top quark mass of 175 GeV, we measure a t (t) over bar production cross section of sigma(t (t) over bar) = 8.6(-2.7)(+3.2) (stat) +/- 1.1(syst) +/- 0.6(lumi) pb, consistent with the standard model prediction.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2005.08.105