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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
- Abazov, V. M. (author)
- Åsman, Barbro (author)
- Clément, Christophe (author)
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- Gollub, Nils (author)
- Lager, Sara (author)
- Strandberg, Jonas (author)
- Zverev, E.G. (author)
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- Elsevier BV, 2005
- 2005
- English.
- In: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 626, s. 55-64
- Journal article (peer-reviewed)
Abstract
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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- Physics
- Fysik
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- ref (subject category)
- art (subject category)
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