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  • Measurement of spin correla...
    Alexeev, G D; Bandurin, D V; Bartlett, J F; Bazterra, V; Beale, S; Bean, A; Bernhard, R; Bertram, I; Besancon, M; Beuselinck, R; Bezzubov, V A; Blazey, G; Bolton, T A; Boos, EE; Brooijmans, G; Buehler, M; Buescher, V; Bunichev, V; Carrasco-Lizarraga, MA; Chevalier-Thery, S; Cihangir, S; Davies, G; Denisov, D; Denisov, S P; Desai, S; Eads, M; Filthaut, F; tner, M; Gavrilov, V; Geist, W; Gerber, CE; Greenlee, H; Gregores, E M; Gruenendahl, S; Haas, A; Hensel, C; La Cruz, IHeredia-De; Hirosky, R; Hobbs, J D; Hoeneisen, B; Jonckheere, A; Kajfasz, E; Kasper, P A; Kehoe, R; Kharchilava, A; Kirby, M H; Kuzmin, V A; Kvita, J; Lee, S W; Lee, WM; Li, L; Li, Q Z; Lincoln, D; Lobodenko, A; Lokajicek, M; Luna-Garcia, R; Madar, R; Magana-Villalba, R; McGivern, CL; Meijer, M M; Merkin, M; Meyer, A; Novaes, S F; Obrant, G; Padilla, M; Park, S K; Parua, N; Patwa, A; Penning, B; Polozov, P; Quinn, B; Royon, C; Sajot, G; Schamberger, R D; Scheglov, Y; Schliephake, T; Schlobohm, S; Schwienhorst, R; Slattery, P; Smirnov, D; Smith, K J; Snow, G R; Snow, J; Stolin, V; Stutte, L; Suter, L; Takahashi, M; Tsai, Y-T; Uvarov, L; Verdier, P; Vilanova, D; Vokac, P; Warchol, J; Xu, C; Yacoob, S; Yasuda, T; Zelitch, S; Zhou, B; Zielinski, M; Zieminska, D

    Physics letters. B, 08/2011, Letnik: 702, Številka: 1
    Journal Article

    We measure the correlation between the spin of the top quark and the spin of the anti-top quark in inline imageinline image final states produced in inline imageinline image collisions at a center of mass energy inline imageinline image, where l is an electron or muon. The data correspond to an integrated luminosity of 5.4 fb super(-1) and were collected with the D0 detector at the Fermilab Tevatron collider. The correlation is extracted from the angles of the two leptons in the t and inline imageinline image rest frames, yielding a correlation strength inline imageinline image, in agreement with the NLO QCD prediction within two standard deviations, but also in agreement with the no correlation hypothesis.