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  • Abazov, V. M., et al. (author)
  • Search for right-handed W bosons in top quark decay
  • 2005
  • In: Physical Review D. - 1550-7998 .- 1550-2368. ; 72:1, s. 011104-
  • Journal article (peer-reviewed)abstract
    • We present a measurement of the fraction f(+) of right-handed W bosons produced in top quark decays, based on a candidate sample of t (t) over bar events in the lepton+jets decay mode. These data correspond to an integrated luminosity of 230 pb(-1), collected by the D0 detector at the Fermilab Tevatron p (p) over bar Collider at root s=1.96 TeV. We use a constrained fit to reconstruct the kinematics of the t (t) over bar and decay products, which allows for the measurement of the leptonic decay angle theta(*) for each event. By comparing the cos theta(*) distribution from the data with those for the expected background and signal for various values of f(+), we find f(+)=0.00 +/- 0.13(stat)+/- 0.07(syst). This measurement is consistent with the standard model prediction of f(+)=3.6 x 10(-4).
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  • Result 1-1 of 1
Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Strandberg, Jonas (1)
Åsman, Barbro (1)
Clement, Christophe (1)
Abazov, V. M. (1)
Zverev, E. G. (1)
Gollub, Nils (1)
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Lager, Sara (1)
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University
Royal Institute of Technology (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2005 (1)

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