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Phys. Rev. Lett. 103, 092002 (2009) [8 pages]

Observation of Electroweak Single Top-Quark Production

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T. Aaltonen et al. CDF Collaboration
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Received 4 March 2009; published 24 August 2009

See accompanying Physics Synopsis

We report the observation of single top-quark production using 3.2  fb-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 mt=175  GeV/c2, we measure a cross section of 2.3-0.5+0.6(stat+syst)  pb, extract the CKM matrix-element value |Vtb|=0.91±0.11(stat+syst)±0.07(theory), and set the limit |Vtb|>0.71 at the 95% C.L.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.092002
DOI:
10.1103/PhysRevLett.103.092002
PACS:
14.65.Ha, 12.15.Hh, 12.15.Ji, 13.85.Qk

See Also

See Also: V. M. Abazov et al. D0 Collaboration, Observation of Single Top-Quark Production, Phys. Rev. Lett. 103, 092001 (2009).