Title First measurement of the cross section for top-quark pair production in protonproton collisions at $\sqrt{s}$=7 TeVFirst measurement of the cross section for top-quark pair production in protonproton collisions at $\sqrt{s}$=7 TeV Author Khachatryan, V. Sirunyan, A. M. Tumasyan, A. de Wolf, E.A. Janssen, X. Mucibello, L. Roland, B. Rougny, R. Selvaggi, M. van Haevermaet, H. Van Mechelen, P. Van Remortel, N. et al. Faculty/Department Faculty of Sciences. Physics Research group Elementary Particle Physics Publication type article Publication 2011Amsterdam, 2011 Subject Physics Source (journal) Physics letters: B. - Amsterdam, 1967, currens Volume/pages 695(2011):5, p. 424-443 ISSN 0370-2693 ISI 000286859500005 Carrier E Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp Abstract The first measurement of the cross section for top-quark pair production in pp collisions at the Large Hadron Collider at center-of-mass energy View the MathML source has been performed using a data sample corresponding to an integrated luminosity of 3.1±0.3 pb−1 recorded by the CMS detector. This result utilizes the final state with two isolated, highly energetic charged leptons, large missing transverse energy, and two or more jets. Backgrounds from DrellYan and non-W/Z boson production are estimated from data. Eleven events are observed in the data with 2.1±1.0 events expected from background. The measured cross section is 194±72(stat.)±24(syst.)±21(lumi.) pb, consistent with next-to-leading order predictions. Full text (open access) https://repository.uantwerpen.be/docman/irua/3e10d0/b50abf28.pdf E-info http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000286859500005&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000286859500005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000286859500005&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle