Top decay to lepton + jets: CDF B tags and cross section

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Description

The top search in the lepton plus jets channel with the Collider Detector at Fermilab (CDF) is presented. The analysis uses a 67 pb{sup {minus}1} data sample of p{bar p} collisions at {radical}s = 1.8 TeV. Soft lepton tagging (SLT) and secondary vertex tagging (SVX) of b jets are used to reduce backgrounds. A significant excess of events over expected backgrounds is seen, and together with the excess of observed events in the dilepton (DIL) channel, firmly establish the existence of the top quark. Combining all channels, the t{bar t} production cross section is measured to be {sigma} {sub t{bar ... continued below

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24 p.

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Incandela, J. June 23, 1995.

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Description

The top search in the lepton plus jets channel with the Collider Detector at Fermilab (CDF) is presented. The analysis uses a 67 pb{sup {minus}1} data sample of p{bar p} collisions at {radical}s = 1.8 TeV. Soft lepton tagging (SLT) and secondary vertex tagging (SVX) of b jets are used to reduce backgrounds. A significant excess of events over expected backgrounds is seen, and together with the excess of observed events in the dilepton (DIL) channel, firmly establish the existence of the top quark. Combining all channels, the t{bar t} production cross section is measured to be {sigma} {sub t{bar t}} = 7.6{sub -2.0}{sup +2.4} pb. The Branching of top to Wb is measured to be Br(t {yields} Wb) = 0.87{sub -0.30}{sup +0.13}(stat) {sub -0.11}{sup +0.13}(syst).

Physical Description

24 p.

Notes

INIS; OSTI as DE95016488

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  • 10. topical workshop on proton-antiproton collider physics, Batavia, IL (United States), 9-13 May 1995

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  • Other: DE95016488
  • Report No.: FNAL/C--95/162-E
  • Report No.: CONF-9505137--8
  • Grant Number: AC02-76CH03000
  • DOI: 10.2172/111896 | External Link
  • Office of Scientific & Technical Information Report Number: 111896
  • Archival Resource Key: ark:/67531/metadc623450

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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.

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  • June 23, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Nov. 10, 2016, 4:14 p.m.

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Incandela, J. Top decay to lepton + jets: CDF B tags and cross section, report, June 23, 1995; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc623450/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.