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  • PhysRevLett.115.152003

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Tevatron combination of single-top-quark cross sections and determination of the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element Vtb

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  • D0 Collaboration
  • CDFR Collaboration
Article number152003
<mark>Journal publication date</mark>9/10/2015
<mark>Journal</mark>Physical review letters
Issue number15
Number of pages11
Publication StatusPublished
<mark>Original language</mark>English


We present the final combination of CDF and D0 measurements of cross sections for single-top-quark production in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV. The data correspond to total integrated luminosities of up to 9.7  fb−1 per experiment. The t-channel cross section is measured to be σt=2.25+0.29−0.31  pb. We also present the combinations of the two-dimensional measurements of the s- vs t-channel cross section. In addition, we give the combination of the s+t channel cross section measurement resulting in σs+t=3.30+0.52−0.40  pb, without assuming the standard model value for the ratio σs/σt. The resulting value of the magnitude of the top-to-bottom quark coupling is |Vtb|=1.02+0.06−0.05, corresponding to |Vtb|>0.92 at the 95% C.L.

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© 2015 American Physical Society