Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/5069
Title: Measurement of the top quark pair production cross section in pp collisions at root s=7 TeV in dilepton final states with ATLAS
Authors: Aad, G.
Abbott, B.
Abdallah, J.
Abdelalim, A. A.
Abdesselam, A.
Abdinov, O.
The ATLAS Collaboration
Sultansoy, Saleh
Keywords: Top physics
Heavy quark production
Total cross section
Issue Date: 2012
Publisher: Elsevier
Abstract: A measurement of the production cross section of top quark pairs (t (t) over bar) in proton-proton collisions at a center-of-mass energy of 7 TeV recorded with the ATLAS detector at the Large Hadron Collider is reported. Candidate events are selected in the dilepton topology with large missing transverse energy and at least two jets. Using a data sample corresponding to an integrated luminosity of 35 pb(-1), a t (t) over bar production cross section sigma(t (t) over bar) = 177 +/- 20(stat.) +/- 14(syst.) +/- 7(lum.) pb is measured for an assumed top quark mass of m(t) = 172.5 GeV. A second measurement requiring at least one jet identified as coming from a b quark yields a comparable result, demonstrating that the dilepton final states are consistent with being accompanied by b-quark jets. These measurements are in good agreement with Standard Model predictions. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.
URI: https://doi.org/10.1016/j.physletb.2011.12.055
https://hdl.handle.net/20.500.11851/5069
ISSN: 0370-2693
1873-2445
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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