Tevatron Combination of Single-Top-Quark Cross Sections and Determination of the Magnitude of the Cabibbo-Kobayashi-Maskawa Matrix Element V[subscript tb]
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PhysRevLett.115.152003.pdf
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Author(s)
Aaltonen, T.
Abazov, V. M.
Abbott, B.
Acharya, B. S.
Adams, M.
Adams, T.
Agnew, J. P.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Date Issued
October 2015
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aaltonen, T., et al. "Tevatron Combination of Single-Top-Quark Cross Sections and Determination of the Magnitude of the Cabibbo-Kobayashi-Maskawa Matrix Element V[subscript tb]." Phys. Rev. Lett. 115, 152003 (October 2015). © 2015 American Physical Society
Version
Final published version
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[superscript −1] per experiment. The t-channel cross section is measured to be σ[subscript t] = 2.25[+0.29 over -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 σ[subscript s + t] = 3.30[+0.52 over -0.40] pb, without assuming the standard model value for the ratio σ[subscript s]/σ[subscript t]. The resulting value of the magnitude of the top-to-bottom quark coupling is |V[subscript tb]| = 1.02[+0.06 over -0.05], corresponding to |V[subscript tb]| > 0.92 at the 95% C.L.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.115.152003
