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Precise Measurement of the Top Quark Mass in the Dilepton Channel at D0
Stockholm University, Faculty of Science, Department of Physics.
2011 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 107, no 8, 082004- p.Article in journal (Refereed) Published
Abstract [en]

We measure the top quark mass (m(t)) in p (p) over bar collisions at a center of mass energy root s = 1.96 TeV using dilepton t (t) over bar -> W(+)bW(-)b(-) -> l(+)nu(l)bl(-)(nu) over bar (l)(b) over bar events, where l denotes an electron, a muon, or a tau that decays leptonically. The data correspond to an integrated luminosity of 5.4 fb(-1) collected with the D0 detector at the Fermilab Tevatron Collider. We obtain m(t) = 174.0 +/- 1.8(stat) +/- 2.4(syst) GeV, which is in agreement with the current world average m(t) = 173.3 +/- 1.1 GeV. This is currently the most precise measurement of mt in the dilepton channel.

Place, publisher, year, edition, pages
2011. Vol. 107, no 8, 082004- p.
National Category
Subatomic Physics
Research subject
URN: urn:nbn:se:su:diva-63096DOI: 10.1103/PhysRevLett.107.082004ISI: 000294067500004OAI: diva2:446683
Swedish Research Council
Publikationen har totalt 421 författare, V. Abazov et al.Available from: 2011-10-08 Created: 2011-10-08 Last updated: 2012-01-26Bibliographically approved

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