Search for color-suppressed B hadronic decay processes at the Υ(4S) resonance

B. Nemati,S. J. Richichi,W. R. Ross, P. Skubic,S. Glenn,S. D. Johnson,Y. Kwon,S. Roberts,E. H. Thorndike,C. P. Jessop,K. Lingel,H. Marsiske,M. L. Perl, V. Savinov, D. Ugolini,R. Wang,X. Zhou,T. E. Coan,V. Fadeyev, I. Korolkov, Y. Maravin,I. Narsky,V. Shelkov,J. Staeck, R. Stroynowski, I. Volobouev,J. Ye, M. Artuso,A. Efimov,M. Goldberg, D. He,S. Kopp,G. C. Moneti,R. Mountain,S. Schuh,T. Skwarnicki,S. Stone,G. Viehhauser,X. Xing, J. Bartelt,S. E. Csorna,V. Jain,K. W. McLean,S. Marka,R. Godang,K. Kinoshita,I. C. Lai,P. Pomianowski,S. Schrenk,G. Bonvicini,D. Cinabro,R. Greene,L. P. Perera,G. J. Zhou,B. Barish,M. Chadha,S. Chan,G. Eigen,J. S. Miller,C. O’Grady,M. Schmidtler,J. Urheim,A. J. Weinstein, F. Würthwein,D. W. Bliss,G. Masek,H. P. Paar, S. Prell,V. Sharma,D. M. Asner, J. Gronberg,T. S. Hill,D. J. Lange,S. Menary,R. J. Morrison,H. N. Nelson,T. K. Nelson,C. Qiao,J. D. Richman,D. Roberts, A. Ryd,M. S. Witherell,R. Balest,B. H. Behrens,W. T. Ford,H. Park,J. Roy,J. G. Smith, J. P. Alexander,C. Bebek,B. E. Berger,K. Berkelman,K. Bloom,D. G. Cassel,H. A. Cho,D. S. Crowcroft,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,J. Kandaswamy,P. C. Kim,D. L. Kreinick,T. Lee, Y. Liu,N. B. Mistry,C. R. Ng, E. Nordberg,M. Ogg, J. R. Patterson, D. Peterson, D. Riley, A. Soffer,B. Valant-Spaight,C. Ward,M. Athanas, P. Avery,C. D. Jones,M. Lohner, C. Prescott, J. Yelton, J. Zheng,G. Brandenburg,R. A. Briere, A. Ershov, Y. S. Gao,D. Y.-J. Kim,R. Wilson,H. Yamamoto,T. E. Browder, Y. Li,J. L. Rodriguez,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,M. Selen,J. J. Thaler, K. W. Edwards, A. Bellerive,R. Janicek,D. B. MacFarlane,P. M. Patel,A. J. Sadoff,R. Ammar, P. Baringer,A. Bean,D. Besson,D. Coppage,C. Darling,R. Davis,N. Hancock,S. Kotov,I. Kravchenko,N. Kwak,S. Anderson,Y. Kubota,S. J. Lee,J. J. O’Neill,S. Patton, R. Poling,T. Riehle,A. Smith,M. S. Alam,S. B. Athar,Z. Ling, A. H. Mahmood, H. Severini,S. Timm,F. Wappler, A. Anastassov,J. E. Duboscq,D. Fujino,K. K. Gan, T. Hart,K. Honscheid,H. Kagan, R. Kass, J. Lee,M. B. Spencer,M. Sung, A. Undrus,R. Wanke, A. Wolf, M. M. Zoeller

PHYSICAL REVIEW D（1998）

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摘要

Using 3.1 fb(-1) of data accumulated at the Y(4S) by the CLEO-II detector, corresponding to 3.3 x 10(6) pairs, we have searched for the color-suppressed B hadronic decay processes (B) over bar(0)-->D-0(D*(0))X-0, where X-0 is a light neutral meson pi(0), rho(0), eta, eta' or omega. The D-*0 mesons are reconstructed in D-*0-->D-0 pi(0) and the D-0 mesons in D-0-->K- pi(+), K(-)pi(+)pi(0) and K(-)pi(+)pi(+)pi(-) decay modes. No obvious signal is observed. We set 90% C.L. upper limits on these modes, varying from 1.2 x 10(-4) for (B) over bar(0)-->D-0 pi(0) to 1.9 x 10(-3) for (B) over bar(0)-->D-(*0 eta'.

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