Abazov, V. M. and Bertram, Iain and Borissov, Guennadi and Fox, Harald and Ratoff, Peter and Sopczak, Andre (2007) Measurement of the t <span style='text-decoration: overline'></span>t production cross-section in p <span style='text-decoration: overline'>p</span> collisions using dilepton events}. Physical Review D, 76. 052006. ISSN 1550-7998Full text not available from this repository.
We present a measurement of the t[overline t] pair production cross section in p[overline p] collisions at sqrt(s)=1.96 TeV utilizing approximately 425 pb-1 of data collected with the D0 detector. We consider decay channels containing two high pT charged leptons (either e or µ) from leptonic decays of both top-daughter W bosons. These were gathered using four sets of selection criteria, three of which required that a pair of fully identified leptons (i.e., eµ, ee, or µµ) be found. The fourth approach imposed less restrictive criteria on one of the lepton candidates and required that at least one hadronic jet in each event be tagged as containing a b quark. For a top quark mass of 175 GeV, the measured cross section is 7.4±1.4(stat)±1.0(syst) pb and for the current Tevatron average top quark mass of 170.9 GeV, the resulting value of the cross section is 7.8±1.8(stat+syst) pb.
|Journal or Publication Title:||Physical Review D|
|Uncontrolled Keywords:||elementary particle jets ; high-energy elementary particle interactions ; intermediate boson decay ; leptonic decays ; proton-proton inclusive interactions ; quark mass ; quark production ; W bosons|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited By:||Dr Iain Bertram|
|Deposited On:||12 Aug 2008 16:48|
|Last Modified:||26 Jul 2012 14:58|
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