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

, D0 Collaboration and , CDFR Collaboration (2015) Tevatron combination of single-top-quark cross sections and determination of the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element Vtb. Physical review letters, 115 (15). ISSN 1079-7114

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Abstract

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.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Additional Information:
© 2015 American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
76563
Deposited By:
Deposited On:
22 Dec 2015 14:00
Refereed?:
Yes
Published?:
Published
Last Modified:
26 Nov 2020 03:21