Measurement of the W charge asymmetry in the W→μν decay mode in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
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Measurement of the W charge asymmetry in the W→μν decay mode in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

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Measurement of the W charge asymmetry in the W→μν decay mode in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

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ATLAS Collaboration; Mitsou, Vasiliki; Ferrer Soria, Antonio Perfil; Cabrera Urbán, Susana Perfil; Castillo Giménez, María Victoria Perfil; Valls Ferrer, Juan Antonio; Fuster Verdú, Juan A. Perfil; Ros Martínez, Eduardo; Fiorini, Luca; Hernández Jiménez, Yesenia; Lacasta Llácer, Carlos; González de la Hoz, Santiago Perfil; Salt Cairols, José Perfil; Higón Rodríguez, Emilio Perfil; García García, Carmen Perfil; Martí García, Salvador; Villaplana Pérez, Miguel
Aquest document és un/a article, creat/da en: 2011

Este documento está disponible también en : http://dx.doi.org/10.1016/j.physletb.2011.05.024
This Letter reports a measurement of the muon charge asymmetry from W bosons produced in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS experiment at the LHC. The asymmetry is measured in the W -> μnu decay mode as a function of the muon pseudorapidity using a data sample corresponding to a total integrated luminosity of 31 pb(-1). The results are compared to predictions based on next-to-leading order calculations with various parton distribution functions. This measurement provides information on the u and d quark momentum fractions in the proton.

    ATLAS Collaboration (Aad, G. Mitsou, Vasiliki Ferrer Soria, Antonio Cabrera Urbán, Susana Castillo Giménez, María Victoria Valls Ferrer, Juan Antonio Fuster Verdú, Juan A. Ros Martínez, Eduardo Fiorini, Luca Hernández Jiménez, Yesenia Lacasta Llácer, Carlos González de la Hoz, Santiago Salt Cairols, José Higón Rodríguez, Emilio García García, Carmen Martí García, Salvador Villaplana Pérez, Miguel 2011 Measurement of the W charge asymmetry in the W→μν decay mode in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector Physics Letters B 701 1 31 49
http://dx.doi.org/10.1016/j.physletb.2011.05.024
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