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Measurement of the t(t)over-bar production cross section using dilepton events in p(p)over-bar collisions
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2011 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 704, no 5, p. 403-410Article in journal (Refereed) Published
Abstract [en]

We present a measurement of the a production cross section sigma((u) over bar) in p (p) over bar collisions at root s = 1.96 TeV using 5.4 fb(-1) of integrated luminosity collected with the D0 detector. We consider final states with at least two jets and two leptons (ee, e mu, mu mu), and events with one jet for the e mu final state as well. The measured cross section is sigma((u) over bar) = 7.36(-0.79)(+0.90)(stat + syst) pb. This result combined with the cross section measurement in the lepton + jets final state yields sigma((u) over bar) = 7.56(-0.56)(+0.63)(stat + syst) pb, which agrees with the standard model expectation. The relative precision of 8% of this measurement is comparable to the precision of the latest theoretical calculations. (C) 2011 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2011. Vol. 704, no 5, p. 403-410
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Physical Sciences
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URN: urn:nbn:se:uu:diva-166093DOI: 10.1016/j.physletb.2011.09.046ISI: 000296549200005OAI: oai:DiVA.org:uu-166093DiVA, id: diva2:475726
Available from: 2012-01-11 Created: 2012-01-10 Last updated: 2017-12-08Bibliographically approved

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Bélanger-Champagne, Camille

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