Measurement of the tt[over-bar] production cross section in pp[over-bar] collisions at [sqrt]s=1.96 TeV using events with large missing transverse energy and jets
Name
Paus-2011-Measurement of the tt.pdf
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Author(s)
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Paus, Christoph M. E.
Bauer, Gerry P
Makhoul, Khaldoun
Alternative Title
Measurement of the tt̅ production cross section in pp̅ collisions at √s=1.96 TeV using events with large missing transverse energy and jets
Date Issued
August 2011
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaltonen, T. et al.(CDF Collaboration). "Measurement of the tt[over-bar] production cross section in pp[over-bar] collisions at [sqrt]s=1.96 TeV using events with large missing transverse energy and jets." Phys. Rev. D 84, 032003 (2011)[12 pages]. ©2011 American Physical Society.
Version
Final published version
Abstract
In this paper we report a measurement of the tt[over-bar] production cross section in pp[over-bar] collisions at [sqrt]s=1.96 TeV using data corresponding to an integrated luminosity of 2.2 fb[superscript -1] collected with the CDF II detector at the Tevatron accelerator. We select events with significant missing transverse energy and high jet multiplicity. This measurement vetoes the presence of explicitly identified electrons and muons, thus enhancing the tau contribution of tt[over-bar] decays. Signal events are discriminated from the background using a neural network, and heavy flavor jets are identified by a secondary-vertex tagging algorithm. We measure a tt[over-bar] production cross section of 7.99±0.55(stat)±0.76(syst)±0.46(lumi) pb, assuming a top mass m[subscript top]=172.5 GeV/c[superscript 2], in agreement with previous measurements and standard model predictions.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.84.032003
