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Measurement of sigma(p(p)over-bar -> Z plus X)Br(Z -> tau(+)tau(-)) at root s=1.96 TeV
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2009 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 670, no 4-5, 292-299 p.Article in journal (Refereed) Published
Abstract [en]

We present a measurement of the cross section for Z boson production times the branching fraction to tau lepton pairs sigma(p (p) over bar -> Z + X)Br(Z -> tau(+)tau(-)) in p (p) over bar collisions at root s = 1.96 TeV. The measurement is performed in the channel in which one tau lepton decays into a muon and neutrinos. and the other tau lepton decays hadronically or into an electron and neutrinos. The data sample corresponds to an integrated luminosity of 1.0 fb(-1) collected with the DO detector at the Fermilab Tevatron Collider. The sample contains 1511 candidate events with an estimated 20% background from jets or muons misidentified as tau leptons. We obtain sigma . Br = 240 +/- 8 (star) +/- 12 (sys) +/- 15 (lum) pb, which is consistent with the standard model prediction.

Place, publisher, year, edition, pages
2009. Vol. 670, no 4-5, 292-299 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-139986DOI: 10.1016/j.physletb.2008.11.010ISI: 000262895800010OAI: oai:DiVA.org:uu-139986DiVA: diva2:382652
Available from: 2011-01-03 Created: 2011-01-03 Last updated: 2011-01-03Bibliographically approved

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