Measurement of the tt̅ [f f overscore] production cross section with an in situ calibration of b-jet identification efficiency
Name
Aaltonen-2011-Measurement of the t.pdf
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Author(s)
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Makhoul, Khaldoun
Paus, Christoph M. E.
Bauer, Gerry P
Date Issued
April 2011
Journal
Physical review D
Publisher
American Physical Society
Citation
Aaltonen, T. "Measurement of the tt̅ production cross section with an in situ calibration of b-jet identification efficiency" Phys. Rev. D, v. 83, 071102(R) (2011) © 2011 American Physical Society
Version
Final published version
Abstract
A measurement of the top-quark pair-production cross section in pp̅ [p p overscore] collisions at √s=1.96 [square root of 1.96] TeV using data corresponding to an integrated luminosity of 1.12 fb-1 [fb superscript -1] collected with the Collider Detector at Fermilab is presented. Decays of top-quark pairs into the final states eν+ jets and μν+ [mu v+] jets are selected, and the cross section and the b-jet identification efficiency are determined using a new measurement technique which requires agreement between the measured cross sections with exactly one and with multiple identified b quarks from the top-quark decays. Assuming a top-quark mass of 175 GeV/c2 [GeV / c superscript 2], a cross section of 8.5±0.6(stat)±0.7(syst)pb is measured.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.83.071102
