Measurement of the charge asymmetry in top quark pair production in pp collisions at √(s)=7 TeV using the ATLAS detector
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Measurement of the charge asymmetry in top quark pair production in pp collisions at √(s)=7 TeV using the ATLAS detector

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Measurement of the charge asymmetry in top quark pair production in pp collisions at √(s)=7 TeV using the ATLAS detector

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dc.contributor.author ATLAS Collaboration
dc.contributor.author Mitsou, Vasiliki
dc.contributor.author Fuster Verdú, Juan A.
dc.contributor.author Ferrer Soria, Antonio
dc.contributor.author Castillo Giménez, María Victoria
dc.contributor.author Cabrera Urbán, Susana
dc.contributor.author García García, Carmen
dc.contributor.author Higón Rodríguez, Emilio
dc.contributor.author Martí García, Salvador
dc.contributor.author Ros Martínez, Eduardo
dc.contributor.author González de la Hoz, Santiago
dc.contributor.author Salt Cairols, José
dc.contributor.author Valls Ferrer, Juan Antonio
dc.contributor.author Kaci, Mohammed
dc.contributor.author Fiorini, Luca
dc.contributor.author Hernández Jiménez, Yesenia
dc.contributor.author Lacasta Llácer, Carlos
dc.contributor.author Villaplana Pérez, Miguel
dc.date.accessioned 2014-07-04T12:19:02Z
dc.date.available 2014-07-04T12:19:02Z
dc.date.issued 2012
dc.identifier.uri http://hdl.handle.net/10550/36968
dc.description.abstract A measurement of the top-antitop production charge asymmetry A(C) is presented using data corresponding to an integrated luminosity of 1.04 fb(-1) of pp collisions at root s = 7 TeV collected by the ATLAS detector at the LHC. Events are selected with a single lepton (electron or muon), missing transverse momentum and at least four jets of which at least one jet is identified as coming from a b-quark. A kinematic fit is used to reconstruct the t (t) over bar event topology. After background subtraction, a Bayesian unfolding procedure is performed to correct for acceptance and detector effects. The measured value of A(C) is A(C) =-0.019+/-0.028 (stat.)+/-0.024 (syst.), consistent with the prediction from the MC@NLO Monte Carlo generator of A(C) = 0.006+/-0.002. Measurements of AC in two ranges of invariant mass of the top-antitop pair are also shown.
dc.language.iso eng
dc.relation.ispartof European Physical Journal C, 2012, vol. 72, num. 06-2039, p. 1-27
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source ATLAS Collaboration Mitsou, Vasiliki Fuster Verdú, Juan A. Ferrer Soria, Antonio Castillo Giménez, María Victoria Cabrera Urbán, Susana García García, Carmen Higón Rodríguez, Emilio Martí García, Salvador Ros Martínez, Eduardo González de la Hoz, Santiago Salt Cairols, José Valls Ferrer, Juan Antonio Kaci, Mohammed Fiorini, Luca Hernández Jiménez, Yesenia Lacasta Llácer, Carlos Villaplana Pérez, Miguel 2012 Measurement of the charge asymmetry in top quark pair production in pp collisions at √(s)=7 TeV using the ATLAS detector European Physical Journal C 72 06-2039 1 27
dc.subject Física nuclear
dc.subject Partícules (Física nuclear)
dc.subject Col·lisions (Física nuclear)
dc.subject Detectors de radiació
dc.title Measurement of the charge asymmetry in top quark pair production in pp collisions at √(s)=7 TeV using the ATLAS detector
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-07-04T12:19:02Z
dc.identifier.doi http://dx.doi.org/10.1140/epjc/s10052-012-2039-5
dc.identifier.idgrec 083410

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