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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, 403-410 p.Article 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, 403-410 p.
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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: 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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