Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-58819
CMS Collaboration, including the following authors; Amsler, C; Chiochia, V; Favaro, C; Verzetti, M; Snoek, H; De Visscher, S; Schmitt, A; Storey, J; Millan, B; Ivova, M; Otyugova, P; Aguiló, E (2011). Measurement of the tt̅ production cross section in pp collisions at 7 TeV in lepton+jets events using b-quark jet identification. Physical Review D, 84(9):092004 .
A new measurement of the inclusive production cross section for pp→tt̅ is performed at a center-of-mass energy of 7 TeV using data collected by the CMS experiment at the LHC. The analysis uses a data sample corresponding to an integrated luminosity of 36 pb-1, and is based on the final state with one isolated, high transverse momentum muon or electron, missing transverse energy, and hadronic jets. The tt̅ content of the selected events is enhanced by requiring the presence of at least one jet consistent with b-quark hadronization. The measured cross section is 150±9(stat)±17(syst)±6(lumi) pb and is in agreement with higher-order QCD calculations. The combination of this measurement with a previous CMS result based on dileptons gives 154±17(stat+syst)±6(lumi) pb.
Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
© 2011 CERN, for the CMS Collaboration
|Other titles:||Measurement of the t t-bar production cross section in pp collisions at 7 TeV in lepton + jets events using b-quark jet identification|
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Physics Institute|
|Deposited On:||13 Feb 2012 09:26|
|Last Modified:||30 Nov 2012 18:53|
|Publisher:||American Physical Society|
|ISSN:||1550-7998 (P) 1089-4918 (E)|
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