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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
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University.
Stockholm University.
Stockholm University.
2008 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 100, no 19, 192004- p.Article in journal (Refereed) Published
Abstract [en]

We measure the t (t) over bar production cross section in p (p) over bar collisions at root s = 1.96 TeV in the lepton + jets channel. Two complementary methods discriminate between signal and background: b tagging and a kinematic likelihood discriminant. Based on 0.9 fb(-1) of data collected by the D0 detector at the Fermilab Tevatron Collider, we measure sigma(t (t) over bar) = 7.62 +/- 0.85 pb, assuming the current world average m(t) = 172.6 GeV. We compare our cross section measurement with theory predictions to determine a value for the top-quark mass of 170 +/- 7 GeV.

Place, publisher, year, edition, pages
2008. Vol. 100, no 19, 192004- p.
National Category
Natural Sciences
URN: urn:nbn:se:su:diva-58582DOI: 10.1103/PhysRevLett.100.192004ISI: 000255962500016OAI: diva2:424920
authorCount :534Available from: 2011-06-20 Created: 2011-06-03 Last updated: 2011-06-20Bibliographically approved

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Åsman, Barbro
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