Measurement of the Single Top Quark Production Cross Section and |V[subscript tb]| in Events with One Charged Lepton, Large Missing Transverse Energy, and Jets at CDF
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PhysRevLett.113.261804.pdf
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Author(s)
Aaltonen, T.
Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Apollinari, G.
Appel, J. A.
Arisawa, T.
Artikov, A.
Date Issued
December 2014
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
"Measurement of the Single Top Quark Production Cross Section and |V[subscript tb]| in Events with One Charged Lepton, Large Missing Transverse Energy, and Jets at CDF." Phys. Rev. Lett. 113, 261804 (December 2014). © 2014 American Physical Society
Version
Final published version
Abstract
We report a measurement of single top quark production in proton-antiproton collisions at a center-of-mass energy of √s = 1.96 TeV using a data set corresponding to 7.5 fb[superscript -1] of integrated luminosity collected by the Collider Detector at Fermilab. We select events consistent with the single top quark decay process t → Wb → ℓνb by requiring the presence of an electron or muon, a large imbalance of transverse momentum indicating the presence of a neutrino, and two or three jets including at least one originating from a bottom quark. An artificial neural network is used to discriminate the signal from backgrounds. We measure a single top quark production cross section of 3.04[+0.57 over -0.53] pb and set a lower limit on the magnitude of the coupling between the top quark and bottom quark |V[subscript tb]| > 0.78 at the 95% credibility level.
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
https://doi.org/10.1103/PhysRevLett.113.261804
