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Measurement of t(t)over-bar production in the tau plus jets topology using p(p)over-bar collisions root s=1.96 TeV
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2010 (English)In: PHYS REV D, ISSN 1550-7998, Vol. 82, no 7, 071102- p.Article in journal (Refereed) Published
Abstract [en]

We present a measurement of the t (t) over bar production cross section multiplied by the branching ratio to tau lepton decaying semihadronically (tau(h)) plus jets, sigma(p (p) over bar -> t (t) over bar + X) center dot BR(t (t) over bar -> tau(h) + jets), at a center of mass energy root s = 1.96 TeV using 1 fb(-1) of integrated luminosity collected with the D0 detector. Assuming a top quark mass of 170 GeV, we measure sigma(t (t) over bar) center dot BR tau h (+ j) = 0.60(-0.22)(+0.23)(stat)(-0.14)(+0.15)(syst) +/- 0.04(lumi) pb. In addition, we extract the t (t) over bar production cross section using the t (t) over bar -> tau(h) + jets topology, with the result sigma(t (t) over bar) = 6.9(-1.2)(+1.2)(stat)(-0.7)(+0.8)(syst) +/- 0.4(lumi) pb. These findings are in good agreement with standard model predictions and measurements performed using other top quark decay channels.

Place, publisher, year, edition, pages
2010. Vol. 82, no 7, 071102- p.
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:uu:diva-133716DOI: 10.1103/PhysRevD.82.071102ISI: 000283539300001OAI: oai:DiVA.org:uu-133716DiVA: diva2:370979
Available from: 2010-11-18 Created: 2010-11-15 Last updated: 2014-10-01Bibliographically approved

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