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## Measurement of the ttbar production cross section and top quark mass extraction using dilepton events in ppbar collisions

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Measurement of the ttbar production cross section and top quark mass extraction using dilepton events in ppbar collisions. / D0 Collaboration, The; Bertram, Iain; Borissov, Guennadi; Fox, Harald; Williams, Mark; Ratoff, Peter; Love, Peter; Rakitin, Alexander; Sopczak, Andre.

In: Physics Letters B, Vol. 679, No. 3, 24.08.2009, p. 177-185.

Research output: Contribution to journalJournal article

### Bibtex

@article{5a85b840892c43498681c6955c8d65cb,
title = "Measurement of the ttbar production cross section and top quark mass extraction using dilepton events in ppbar collisions",
abstract = "We present a measurement of the top quark pair production cross section in ppbar collisions at \sqrt{s}=1.96 TeV using approximately 1 fb^{-1} of data collected with the D0 detector. We consider decay channels containing two high pt charged leptons where one lepton is identified as an electron or a muon while the other lepton can be an electron, a muon or a hadronically decaying tau lepton. For a mass of the top quark of 170 GeV, the measured cross section is 7.5 +1.0-1.0 (stat) +0.7-0.6 (syst) +0.6-0.5 (lumi) pb. Using lepton+tau events only, we measure: \sigma_ttbar \times B(ttbar to ltau bbbar) = 0.13 +0.09-0.08 (stat) +0.06-0.06 (syst) +0.02-0.02 (lumi) pb. Comparing the measured cross section as a function of the mass of the top quark with a partial next-to-next-to leading order Quantum Chromodynamics theoretical prediction, we extract a mass of the top quark of 171.5 +9.9-8.8 GeV, in agreement with direct measurements.",
author = "{D0 Collaboration}, The and Iain Bertram and Guennadi Borissov and Harald Fox and Mark Williams and Peter Ratoff and Peter Love and Alexander Rakitin and Andre Sopczak",
note = "published in Phys. Lett. B, 10 pages, 7 figures",
year = "2009",
month = aug
day = "24",
doi = "10.1016/j.physletb.2009.07.032",
language = "English",
volume = "679",
pages = "177--185",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "3",

}

### RIS

TY - JOUR

T1 - Measurement of the ttbar production cross section and top quark mass extraction using dilepton events in ppbar collisions

AU - D0 Collaboration, The

AU - Bertram, Iain

AU - Fox, Harald

AU - Williams, Mark

AU - Ratoff, Peter

AU - Love, Peter

AU - Rakitin, Alexander

AU - Sopczak, Andre

N1 - published in Phys. Lett. B, 10 pages, 7 figures

PY - 2009/8/24

Y1 - 2009/8/24

N2 - We present a measurement of the top quark pair production cross section in ppbar collisions at \sqrt{s}=1.96 TeV using approximately 1 fb^{-1} of data collected with the D0 detector. We consider decay channels containing two high pt charged leptons where one lepton is identified as an electron or a muon while the other lepton can be an electron, a muon or a hadronically decaying tau lepton. For a mass of the top quark of 170 GeV, the measured cross section is 7.5 +1.0-1.0 (stat) +0.7-0.6 (syst) +0.6-0.5 (lumi) pb. Using lepton+tau events only, we measure: \sigma_ttbar \times B(ttbar to ltau bbbar) = 0.13 +0.09-0.08 (stat) +0.06-0.06 (syst) +0.02-0.02 (lumi) pb. Comparing the measured cross section as a function of the mass of the top quark with a partial next-to-next-to leading order Quantum Chromodynamics theoretical prediction, we extract a mass of the top quark of 171.5 +9.9-8.8 GeV, in agreement with direct measurements.

AB - We present a measurement of the top quark pair production cross section in ppbar collisions at \sqrt{s}=1.96 TeV using approximately 1 fb^{-1} of data collected with the D0 detector. We consider decay channels containing two high pt charged leptons where one lepton is identified as an electron or a muon while the other lepton can be an electron, a muon or a hadronically decaying tau lepton. For a mass of the top quark of 170 GeV, the measured cross section is 7.5 +1.0-1.0 (stat) +0.7-0.6 (syst) +0.6-0.5 (lumi) pb. Using lepton+tau events only, we measure: \sigma_ttbar \times B(ttbar to ltau bbbar) = 0.13 +0.09-0.08 (stat) +0.06-0.06 (syst) +0.02-0.02 (lumi) pb. Comparing the measured cross section as a function of the mass of the top quark with a partial next-to-next-to leading order Quantum Chromodynamics theoretical prediction, we extract a mass of the top quark of 171.5 +9.9-8.8 GeV, in agreement with direct measurements.

U2 - 10.1016/j.physletb.2009.07.032

DO - 10.1016/j.physletb.2009.07.032

M3 - Journal article

VL - 679

SP - 177

EP - 185

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 3

ER -