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Measurement of sigma(p(p)over-bar -> Z)center dot Br(Z ->tau tau) at root s=1.96 TeV
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2005 (English)In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Vol. 71, no 7, 072004- p.Article in journal (Refereed) Published
Abstract [en]

We present a measurement of the cross section for Z production times the branching fraction to tau leptons, sigma.Br(Z ->tau(+)tau(-)), in p (p) over bar collisions at root s=1.96 TeV in the channel in which one tau decays into mu nu(mu)nu(tau), and the other into hadrons+nu(tau) or e nu(e)nu(tau). The data sample corresponds to an integrated luminosity of 226 pb(-1) collected with the D0 detector at the Fermilab Tevatron collider. The final sample contains 2008 candidate events with an estimated background of 55%. From this we obtain sigma.Br(Z ->tau(+)tau(-)) = 237 +/- 15(stat)+/- 18(sys)+/- 15(lum)pb, in agreement with the standard model prediction.

Place, publisher, year, edition, pages
2005. Vol. 71, no 7, 072004- p.
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Physical Sciences
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URN: urn:nbn:se:kth:diva-37868DOI: 10.1103/PhysRevD.71.072004ISI: 000228765400010Scopus ID: 2-s2.0-18444371737OAI: oai:DiVA.org:kth-37868DiVA: diva2:435365
Available from: 2011-08-18 Created: 2011-08-18 Last updated: 2017-12-08Bibliographically approved

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Strandberg, Jonas

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