%0 Journal Article %T Measurement of the W charge asymmetry in the W -> mu nu decay mode in pp collisions at sqrt(s)=7 TeV with the ATLAS detector %A ATLAS Collaboration (Aad, G. et al %A Amoros, G. %A Cabrera Urban, S. %A Castillo Gimenez, V. %A Costa, M. J. %A Escobar, C. %A Ferrer, A. %A Fuster, J. %A Garcia, C. %A Gonzalez de la Hoz, S. %A Hernandez Jimenez, Y. %A Higon-Rodriguez, E. %A Irles Quiles, A. %A Kaci, M. %A Lacasta, C. %A Lacuesta, V. R. %A Marti-Garcia, S. %A Miñano, M. %A Mitsou, V. A. %A Moles-Valls, R. %A Moreno Llacer, M. %A Oliver Garcia, E. %A Perez Garcia-Estañ, M. T. %A Ros, E. %A Salt, J. %A Solans, C. A. %A Soldevila, U. %A Sanchez, J. %A Torro Pastor, E. %A Valladolid Gallego, E. %A Valls Ferrer, J. A. %A Villaplana Perez, M. %A Vos, M. %A Wildauer, A. %J Physics Letters B %D 2011 %V 701 %N 1 %I Elsevier Science Bv %@ 0370-2693 %G English %F ATLASCollaborationAad_etal2011 %O WOS:000292719700003 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=704), last updated on Wed, 17 Aug 2011 12:28:16 +0000 %X 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. %K W production %K Charge asymmetry %K Parton distribution function %K Muon decay mode %R 10.1016/j.physletb.2011.05.024 %U http://arxiv.org/abs/arXiv:1103.2929 %U https://doi.org/10.1016/j.physletb.2011.05.024 %P 31-49