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    Alexeev, G D; Aoki, M; Augsten, K; Avila, C; Bandurin, D V; Bartlett, J F; Bazterra, V; Belanger-Champagne, C; Bellantoni, L; Beuselinck, R; Bhat, P C; Buehler, M; Carrasco-Lizarraga, MA; Cho, S W; Clutter, J; Cooper, W E; Couderc, F; Cousinou, M-C; de Jong, SJ; Diehl, H T; Ding, P F; Dominguez, A; Eads, M; Edmunds, D; Ellison, J; Elvira, V D; Fisk, HE; tner, M; Fuess, S; Garcia-Guerra, G A; Geng, W; Gerbaudo, D; Gershtein, Y; Ginther, G; Golovanov, G; Goussiou, A; Greder, S; Grohsjean, A; Gruenewald, M W; Haley, J; Han, L; Harder, K; Hays, J; Head, T; Hedin, D; Hubacek, Z; Illingworth, R; Jabeen, S; Johns, K; Juste, A; Karmanov, D; Kermiche, S; Kozelov, A V; Kulikov, S; Kumar, A; Lyon, AL; Maciel, AKA; Malyshev, V L; Maravin, Y; Menezes, D; Mercadante, P G; Mulhearn, M; Narain, M; Nayyar, R; Neal, HA; Osta, J; Parihar, V; Perfilov, M; Qian, J; Ranjan, K; Renkel, P; Ripp-Baudot, I; Salcido, P; Sanghi, B; Savage, G; Sawyer, L; Schamberger, R D; Shabalina, E; Smith, K J; Stolin, V; Stutte, L; Takahashi, M; Tschann-Grimm, K; Tuchming, B; Uvarov, S; Van Kooten, R; Verzocchi, M; Wahl, H D; Wang, MHLS; Warchol, J; Watts, G; Welty-Rieger, L; White, A; Wicke, D; Wilson, G W; Xie, Y; Yatsunenko, YA; Yip, K; Zhao, T; Zhu, J

    Physics letters. B, 02/2012, Letnik: 708, Številka: 1-2
    Journal Article

    We present new direct constraints on a general Wtb interaction using data corresponding to an integrated luminosity of 5.4 fb-1 collected by the D0 detector at the Tevatron p p macr collider. The standard model provides a purely left-handed vector coupling at the Wtb vertex, while the most general, lowest dimension Lagrangian allows right-handed vector and left- or right-handed tensor couplings as well. We obtain precise limits on these anomalous couplings by comparing the data to the expectations from different assumptions on the Wtb coupling.