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| Authors | G. Aad, . et al, S.C.M. Bentvelsen, A.P. Colijn, A. Doxiadis, P. Ferrari, H. Garitaonandia, D.A.A. Geerts, M. Gosselink, P.J. de Jong, M.S. Kayl, Z. van Kesteren, E.N. Koffeman, E.E. van der Kraaij, H.C. Lee, R.H.L. van der Leeuw, F.L. Linde, J. Mechnich, I. Mussche, L. de Nooij, J.P. Ottersbach, M. Tsiakiris, J.C. Vermeulen, M. Vreeswijk, I.B. van Vulpen | | Title | 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 |
| Journal | Physics Letters B |
| Volume | 701 |
| Year | 2011 |
| Pages | 31-49 |
| ISSN | 03702693 |
| Faculty | Faculty of Science |
| Institute/dept. | FNWI: Institute for High Energy Physics (IHEF) |
| Abstract | 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→μν 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. |
| Document type | Article |
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