Observation of Single Top Quark Production at the Tevatron

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This paper reports on the first observation of electroweak production of single top quarks by the D0 and CDF collaborations. At Fermilab's 1.96 TeV proton-antiproton collider, a few thousand events are selected from several inverse femtobarns of data that contain an isolated electron or muon and/or missing transverse energy, together with jets that originate from the decays of b quarks. Using sophisticated multivariate analyses to separate signal from background, the D0 collaboration measures a cross section {sigma} (p{bar p} {yields} tb + X, tqb + X) = 3.94 {+-} 0.88 pb (for a top quark mass of 170 GeV) and ... continued below

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4 pages

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Heinson, A.P.; D0, for the & Collaborations, CDF September 1, 2009.

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This paper reports on the first observation of electroweak production of single top quarks by the D0 and CDF collaborations. At Fermilab's 1.96 TeV proton-antiproton collider, a few thousand events are selected from several inverse femtobarns of data that contain an isolated electron or muon and/or missing transverse energy, together with jets that originate from the decays of b quarks. Using sophisticated multivariate analyses to separate signal from background, the D0 collaboration measures a cross section {sigma} (p{bar p} {yields} tb + X, tqb + X) = 3.94 {+-} 0.88 pb (for a top quark mass of 170 GeV) and the CDF collaboration measures a value of 2.3{sub -0.5}{sup +0.6} pb (for a top quark mass of 175 GeV). These values are consistent with theoretical predictions at next-to-leading order precision. Both measurements have a significance of 5.0 standard deviations, meeting the benchmark to be considered unambiguous observation.

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4 pages

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  • Report No.: FERMILAB-CONF-09-431-E
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 965406
  • Archival Resource Key: ark:/67531/metadc935420

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • September 1, 2009

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Nov. 30, 2016, 2:06 p.m.

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Heinson, A.P.; D0, for the & Collaborations, CDF. Observation of Single Top Quark Production at the Tevatron, article, September 1, 2009; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc935420/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.