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Briere, R A; Tatishvili, G; Vogel, H; Adam, N E; Alexander, J P; Bebek, C; Berger, B E; Berkelman, K; Blanc, F; Cassel, D G; Gibbons, L; Gittelman, B; Gray, S W; Hartill, D L; Hsu, L; Jones, C D; Kandaswamy, J; Kreinick, D L; Mahlke-Krüger, H; Meyer, T O; Mistry, N B; Nordberg, E; Palmer, M; Patterson, J R; Peterson, D; Riley, D; Schwarthoff, H; Thayer, J G; Urner, D; Valant-Spaight, B; Viehhauser, G; Warburton, A; Weinberger, M; Athar, S B; Avery, P; Stoeck, H; Yelton, J; Brandenburg, G; Ershov, A; Kim, D Y-J; Wilson, R; Benslama, K; Gollin, G D; Karliner, I; Lowrey, N; Plager, C; Selen, M; Williams, J; Ammar, R; Anderson, S; Frolov, V V; Kubota, Y; Li, S Z; Smith, A; Stepaniak, C J; Urheim, J; Alam, M S; Wappler, F; Eckhart, E; Gan, K K; Gwon, C; Hufnagel, D; Kagan, H; Pedlar, T K; von Toerne, E; Wilksen, T; Richichi, S J; Severini, H; Skubic, P; Dytman, S A; Nam, S; Savinov, V; Hinson, J W; Miller, D H; Pavlunin, V; Shipsey, I P J; Cronin-Hennessy, D; Lyon, A L; Park, C S; Park, W; Liu, F; Maravin, Y; Ye, J; Boulahouache, C; Bukin, K; Dambasuren, E; Mountain, R; Skwarnicki, T; Stone, S; Wang, J C; Mahmood, A H; Csorna, S E; Danko, I; Xu, Z; Bornheim, A; Pappas, S P; Shapiro, A; Masek, G; Paar, H P; Mahapatra, R
Physical review letters, 2002-Aug-19, 20020819, Letnik: 89, Številka: 8Journal Article
We determine the weak coupling /V(cb)/ between the b and c quarks using a sample of 3 x 10(6) BB; events in the CLEO detector at the Cornell Electron Storage Ring. We determine the yield of reconstructed B-->D*l nu; decays as a function of w, the boost of the D* in the B rest frame, and from this we obtain the differential decay rate d Gamma/dw. By extrapolating d Gamma/dw to w=1, the kinematic end point at which the D* is at rest relative to the B, we extract the product /V(cb)/F(1), where F(1) is the form factor at w=1. Combined with theoretical results for F(1) we determine /V(cb)/=0.0469+/-0.0014(stat)+/-0.0020(syst)+/-0.0018(theor).
