Journal
PHYSICAL REVIEW LETTERS
Volume 103, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.103.092002
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Funding
- U. S. Department of Energy and National Science Foundation
- Italian Istituto Nazionale di Fisica Nucleare
- STFC [PP/E000452/1, ST/H001077/1] Funding Source: UKRI
- Science and Technology Facilities Council [PPA/A/S/2003/00461/2, PP/E000452/1, PP/E000444/1, ST/H001077/1] Funding Source: researchfish
- National Research Foundation of Korea [과06A1102, 과06B1110] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We report the observation of single top-quark production using 3.2 fb(-1) of pp 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(t)=175 GeV/c(2), we measure a cross section of 2.3(-0.5)(+0.6)(stat+syst) pb, extract the CKM matrix-element value |V-tb|=0.91 +/- 0.11(stat+syst)+/- 0.07(theory), and set the limit |V-tb|> 0.71 at the 95% C.L.
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