Title
Measurement of the <tex>$t\overline{t}$</tex> production cross section and the top quark mass in the dilepton channel in pp collisions at <tex>$\sqrt{s}$</tex> = 7 TeV Measurement of the <tex>$t\overline{t}$</tex> production cross section and the top quark mass in the dilepton channel in pp collisions at <tex>$\sqrt{s}$</tex> = 7 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Bristol ,
Subject
Physics
Source (journal)
Journal of high energy physics. - Bristol
Volume/pages
(2011) :7 , p. 1-49
ISSN
1126-6708
1029-8479
ISI
000293741400049
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The tt production cross section and top quark mass are measured in proton-proton collisions at s=7 TeV in a data sample corresponding to an integrated luminosity of 36 pb−1 collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identification are obtained and combined. The measured value is  = 168 ± 18 (stat.) ± 14 (syst.) ± 7 (lumi.) pb, consistent with predictions from the standard model. The top quark mass m top is reconstructed with two different methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of m top = 175.5 ± 4.6 (stat.) ± 4.6 (syst.) GeV/c 2.
E-info
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Full text (open access)
https://repository.uantwerpen.be/docman/irua/65a01b/92938.pdf
Handle