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Measurement of the top pair production cross section in the lepton+jets channel using a jet flavor discriminant

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Aaltonen, T., Álvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Appel, J., Apresyan, A. et al.
(2011) Measurement of the top pair production cross section in the lepton+jets channel using a jet flavor discriminant. Physical Review D, Vol. 84 (No. 3). doi:10.1103/PhysRevD.84.031101

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Official URL: http://dx.doi.org/10.1103/PhysRevD.84.031101

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Abstract

We present a new method to measure the top quark pair production cross section and the background rates with data corresponding to an integrated luminosity of 2.7  fb-1 from pp̅ collisions at √s=1.96  TeV collected with the CDF II Detector. We select events with a single electron or muon candidate, missing transverse energy, and at least one b-tagged jet. We perform a simultaneous fit to a jet flavor discriminant across nine samples defined by the number of jets and b tags. An advantage of this approach is that many systematic uncertainties are measured in situ and inversely scale with integrated luminosity. We measure a top cross section of σtt̅ =7.64±0.57(stat+syst)±0.45(luminosity)  pb.

Item Type: Journal Article
Divisions: Faculty of Science > Physics
Journal or Publication Title: Physical Review D
Publisher: American Physical Society
ISSN: 1550-7998
Official Date: 2011
Dates:
DateEvent
2011Published
Volume: Vol. 84
Number: No. 3
DOI: 10.1103/PhysRevD.84.031101
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

Data sourced from Thomson Reuters' Web of Knowledge

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