Measurement of B -> D-s(()*K-)pi branching fractions

S. Ahmed,M. S. Alam,S. B. Athar,L. Jian,L. Ling,M. Saleem,S. Timm,F. Wappler, A. Anastassov,J. E. Duboscq,E. Eckhart,K. K. Gan,C. Gwon, T. Hart, K. Honscheid,D. Hufnagel,H. Kagan,R. Kass,T. K. Pedlar,H. Schwarthoff,J. B. Thayer, E. von Toerne, M. M. Zoeller,S. J. Richichi, H. Severini, P. Skubic, A. Undrus, S. Chen,J. Fast, J. W. Hinson,J. Lee,D. H. Miller, E. I. Shibata, I. P. Shipsey, V. Pavlunin, D. Cronin-Hennessy, A. L. Lyon, E. H. Thorndike, C. P. Jessop, H. Marsiske,M. L. Perl, V. Savinov, X. Zhou,T. E. Coan, V. Fadeyev, Y. Maravin,I. Narsky, R. Stroynowski, J. Ye, T. Wlodek,M. Artuso, R. Ayad, C. Boulahouache, K. Bukin, E. Dambasuren, S. Karamov, G. Majumder, G. C. Moneti, R. Mountain,S. Schuh, T. Skwarnicki,S. Stone,G. Viehhauser,J. C. Wang, A. Wolf, J. Wu,S. Kopp, A. H. Mahmood, S. E. Csorna,I. Danko, K. W. McLean,Sz. Márka, Z. Xu,R. Godang,K. Kinoshita, I. C. Lai,S. Schrenk, G. Bonvicini, D. Cinabro,S. McGee, L. P. Perera,G. J. Zhou, E. Lipeles,S. P. Pappas, M. Schmidtler,A. Shapiro, W. M. Sun, A. J. Weinstein, F. Würthwein,D. E. Jaffe,G. Masek, H. P. Paar, E. M. Potter, S. Prell, V. Sharma,D. M. Asner, A. Eppich,T. S. Hill, R. J. Morrison,H. N. Nelson, J. D. Richman,M. S. Witherell,R. A. Briere,G. P. Chen, B. H. Behrens, W. T. Ford, A. Gritsan,J. Roy,J. G. Smith, J. P. Alexander,R. Baker, C. Bebek,B. E. Berger, K. Berkelman,F. Blanc, V. Boisvert, D. G. Cassel,M. Dickson, P. S. Drell,K. M. Ecklund, R. Ehrlich, A. D. Foland, P. Gaidarev, L. Gibbons, B. Gittelman,S. W. Gray, D. L. Hartill, B. K. Heltsley,P. I. Hopman,C. D. Jones, D. L. Kreinick, M. Lohner, A. Magerkurth, T. O. Meyer, N. B. Mistry, E. Nordberg, J. R. Patterson, D. Peterson,D. Riley,J. G. Thayer, D. Urner, B. Valant-Spaight, A. Warburton, P. Avery, C. Prescott, A. I. Rubiera, J. Yelton, J. Zheng, G. Brandenburg, A. Ershov, Y. S. Gao, D. Y. J. Kim,R. Wilson,T. E. Browder, Y. Li,J. L. Rodriguez,H. Yamamoto,T. Bergfeld, B. I. Eisenstein,J. Ernst, G. E. Gladding, G. D. Gollin, R. M. Hans,E. Johnson, I. Karliner, M. A. Marsh,M. Palmer, C. Plager, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, K. W. Edwards, R. Janicek,P. M. Patel, A. J. Sadoff, R. Ammar,A. Bean, D. Besson, R. Davis,N. Kwak, X. Zhao,S. Anderson, V. V. Frolov,Y. Kubota,S. J. Lee,R. Mahapatra, J. J. O'neill, R. Poling,T. Riehle,A. Smith, C. J. Stepaniak, J. Urheim

Physical Review D(2009)

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摘要
We report a measurement of the exclusive B+ meson decay to the D-s(()*K-)(+)pi(+) final state using 657 x 10(6) B (B) over bar pairs collected at the gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We use D-s* -\u003e D-s(-) -\u003e phi pi(-), (K) over bar*(892)K-0(-) and (KSK-)-K-0 decay modes for D-s(()*()) reconstruction and measure the following branching fractions: B(B+ -\u003e Ds-K+pi(+)) = (1.71(-0.07)(+0.08)(stat)(-0.20)(+0.20)(syst) +/- 0.15(B-int)) x 10(-4) and B(B+ -\u003e D-s*K--(+)pi(+)) = (1.31(-0.12)(+0.13)(stat)(-0.25)(+0.25)(syst) +/- 0.12(B-int)) x 10(-4). The uncertainties are due to statistics, experimental systematic errors, and uncertainties of intermediate branching fractions, respectively.
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