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Abdallah, J; Alon, R; Bagnaia, P; Baines, J T; Banerjee, P; Barbero, M; Barnett, R M; Bell, P J; Benhammou, Y; Bohm, C; Borissov, G; Boscherini, D; Bourdarios, C; Bruncko, D; Bruni, G; Buchanan, N J; Burckhart, H; Chen, T; Chiefari, G; Chikovani, L; De, K; Dell'Asta, L; Di Girolamo, A; Dohmae, T; Duchovni, E; Duxfield, R; Eriksson, D; Etzion, E; Feng, E J; Gardner, R W; Gemmell, A; Giugni, D; Göpfert, T; Grabowska-Bold, I; Hsu, P J; Ioannou, P; Ji, W; Kaplon, J; Kass, R D; Katsoufis, E; Katzy, J; Khandanyan, H; Klinger, J A; Koffeman, E; Krumshteyn, Z V; Lankford, A J; Laplace, S; Lei, X; Li, B; Litke, A M; Lobodzinska, E; Loginov, A; Lounis, A; Ludwig, I; Machado Miguens, J; Maidantchik, C; Mockett, P; Moisseev, A M; Mount, R; Okuyama, T; Olszewski, A; Oren, Y; Ouyang, Q; Pina, J; Prell, S; Przysiezniak, H; Qin, Z; Rizvi, E; Royon, C R; Ruckstuhl, N; Salamanna, G; Sander, H G; Searcy, J; Seiden, A; Seuster, R; Shao, Q T; Shimizu, S; Sjölin, J; Smirnov, Y; Soffer, A; Solovyanov, O V; Stockton, M C; Stoicea, G; Strauss, M; Strom, D M; Thomson, M; Toczek, B; Trinh, T N; Troncon, C; Tylmad, M; Vachon, B; Voss, R; Wang, R; Winkelmann, S; Yamaoka, J; Yorita, K; Zabinski, B; Zemla, A; Zhan, Z; Zhao, Z
Physical review letters, 2012-Jul-06, Letnik: 109, Številka: 1Journal Article
A QCD analysis is reported of ATLAS data on inclusive W(±) and Z boson production in pp collisions at the LHC, jointly with ep deep-inelastic scattering data from HERA. The ATLAS data exhibit sensitivity to the light quark sea composition and magnitude at Bjorken x∼0.01. Specifically, the data support the hypothesis of a symmetric composition of the light quark sea at low x. The ratio of the strange-to-down sea quark distributions is determined to be 1.00(-0.28)(+0.25) at absolute four-momentum transfer squared Q(2)=1.9 GeV(2) and x=0.023.
