Observation of Electroweak Single Top-Quark Production
Name
Aaltonen-2009-Observation of Elect.pdf
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Author(s)
Xie, Si
Knuteson, Bruce O.
Henderson, C.
Hahn, Kristian Allan
Goncharov, Maxim
Gomez-Ceballos, Guillelmo
Choudalakis, Georgios
Paus, Christoph M. E.
Makhoul, Khaldoun
Bauer, Gerry P
Date Issued
August 2009
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
CDF Collaboration et al. “Observation of Electroweak Single Top-Quark Production.” Physical Review Letters 103.9 (2009): 092002. © 2009 The American Physical Society
Version
Final published version
Abstract
We report the observation of single top-quark production using 3.2 fb[superscript -1] of pp̅ collision data with √s=1.96 TeV collected by the Collider Detector at Fermilab. The significance of the observed data is 5.0 standard deviations, and the expected sensitivity for standard model production and decay is in excess of 5.9 standard deviations. Assuming m[subscript t]=175 GeV/c[superscript 2], we measure a cross section of 2.3[subscript -0.5][superscript +0.6](stat+syst) pb, extract the CKM matrix-element value |V[subscript tb]|=0.91±0.11(stat+syst)±0.07(theory), and set the limit |V[subscript tb]|>0.71 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.103.092002
