Title
Measurement of the tt̄ production cross section in pp collisions at √s=7 TeV using the kinematic properties of events with leptons and jets
Date Issued
01 July 2011
Access level
open access
Resource Type
journal article
Author(s)
Chatrchyan S.
Khachatryan V.
Sirunyan A.M.
Tumasyan A.
Adam W.
Bergauer T.
Dragicevic M.
Erö J.
Fabjan C.
Friedl M.
Frühwirth R.
Ghete V.M.
Hammer J.
Hänsel S.
Hoch M.
Hörmann N.
Hrubec J.
Jeitler M.
Kiesenhofer W.
Krammer M.
Liko D.
Mikulec I.
Pernicka M.
Rohringer H.
Schöfbeck R.
Strauss J.
Taurok A.
Teischinger F.
Wagner P.
Waltenberger W.
Walzel G.
Widl E.
Wulz C.E.
Mossolov V.
Shumeiko N.
Suarez Gonzalez J.
Bansal S.
Benucci L.
de Wolf E.A.
Janssen X.
Maes J.
Maes T.
Mucibello L.
Ochesanu S.
Roland B.
Rougny R.
Selvaggi M.
van Haevermaet H.
van Mechelen P.
van Remortel N.
Blekman F.
Blyweert S.
D'Hondt J.
Devroede O.
Suarez R.G.
Kalogeropoulos A.
Maes M.
van Doninck W.
van Mulders P.
van Onsem G.P.
villella I.
Charaf O.
Clerbaux B.
De Lentdecker G.
Dero V.
Gay A.P.R.
Hammad G.H.
Hreus T.
Marage P.E.
Thomas L.
Vander Velde C.
Vanlaer P.
Adler V.
Cimmino A.
Costantini S.
Grunewald M.
Klein B.
Lellouch J.
Marinov A.
Mccartin J.
Ryckbosch D.
Thyssen F.
Tytgat M.
Vanelderen L.
Verwilligen P.
Walsh S.
Zaganidis N.
Basegmez S.
Bruno G.
Caudron J.
Ceard L.
Gil E.C.
de Favereau de Jeneret J.
Delaere C.
Favart D.
Giammanco A.
Grégoire G.
Hollar J.
Lemaitre V.
Publisher(s)
Springer New York LLC
Abstract
A measurement of the tt̄ production cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV has been performed at the LHC with the CMS detector. The analysis uses a data sample corresponding to an integrated luminosity of 36 pb-1and is based on the reconstruction of the final state with one isolated, high transverse-momentum electron or muon and three or more hadronic jets. The kinematic properties of the events are used to separate the tt̄ signal from W+jets and QCD multijet background events. The measured cross section is 173+39-32(stat. + syst.) pb, consistent with standard model expectations. © 2011 CERN for the benefit of the CMS collaboration.
Start page
1
End page
27
Volume
71
Issue
9
Language
English
OCDE Knowledge area
Física nuclear
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-82655167518
Source
European Physical Journal C
ISSN of the container
14346044
Sponsor(s)
National Science Foundation - 0955765.
Science and Technology Facilities Council - GRIDPP, ST/F006748/1, ST/F007094/1, ST/G502347/1, ST/I000410/1, ST/I002200/1, ST/I005912/1, ST/I505572/1.
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung - 123501.
Sources of information:
Directorio de Producción Científica
Scopus