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Measurement of the tt̄ production cross section in pp̄ collisions at √s = 1.96 TeV in dilepton final states

  • V. M. Abazov
  • , B. Abbott
  • , M. Abolins
  • , B. S. Acharya
  • , M. Adams
  • , T. Adams
  • , M. Agelou
  • , J. L. Agram
  • , S. H. Ahn
  • , M. Ahsan
  • , G. D. Alexeev
  • , G. Alkhazov
  • , A. Alton
  • , G. Alverson
  • , G. A. Alves
  • , M. Anastasoaie
  • , T. Andeen
  • , S. Anderson
  • , B. Andrieu
  • , Y. Arnoud
  • A. Askew, B. Åsman, A. C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, F. Badaud, A. Baden, B. Baldin, P. W. Balm, S. Banerjee, E. Barberis, P. Bargassa, P. Baringer, C. Barnes, J. Barreto, J. F. Bartlett, U. Bassler, D. Bauer, A. Bean, S. Beauceron, M. Begalli, M. Begel, A. Bellavance, S. B. Beri, G. Bernardi, R. Bernhard, I. Bertram, M. Besançon, R. Beuselinck, V. A. Bezzubov, P. C. Bhat, V. Bhatnagar, M. Binder, C. Biscarat, K. M. Black, I. Blackler, G. Blazey, F. Blekman, S. Blessing, D. Bloch, U. Blumenschein, A. Boehnlein, O. Boeriu, T. A. Bolton, F. Borcherding, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, N. J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, S. Burdin, S. Burke, T. H. Burnett, E. Busato, C. P. Buszello, J. M. Butler, J. Cammin, S. Caron, W. Carvalho, B. C.K. Casey, N. M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K. M. Chan, A. Chandra, D. Chapin, F. Charles, E. Cheu, D. K. Cho, S. Choi, B. 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Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

We present a measurement of the top quark pair (tt̄) production cross section in pp̄ collisions at √s=1.96 TeV using events with two charged leptons in the final state. This analysis utilizes an integrated luminosity of 224-243 pb-1 collected with the DØ detector at the Fermilab Tevatron Collider. We observe 13 events in the e+e -, eμ and μ+μ- channels with an expected background of 3.2±0.7 events. For a top quark mass of 175 GeV, we measure a tt̄ production cross section of σtt̄=8. 6-2.7+3.2(stat)±1.1(syst)±0.6(lumi) pb, consistent with the standard model prediction.

Original languageEnglish
Pages (from-to)55-64
Number of pages10
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume626
Issue number1-4
DOIs
StatePublished - Oct 20 2005

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