Study of exclusive two-body B0 meson decays to charmonium

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. HansE. 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, 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 J Shipsey, V. Pavlunin, D. Cronin-Hennessy, A. L. Lyon, E. H. Thorndike, C. P. Jessop, H. Marsiske, M. L. Perl, V. Savinov, D. Ugolini, 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, R. A. Briere, T. Ferguson, H. Vogel, 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, P. G. Thies, B. Valant-Spaight, A. Warburton

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Abstract

We present a study of three B0 decay modes useful for time-dependent CP asymmetry measurements. From a sample of 9.7×106 BB̄ meson pairs collected with the CLEO detector, we have reconstructed B0 →J/ψKS0, B0→χclKS0, and B0→J/ψπ0 decays. The latter two decay modes have been observed for the first time. We describe a KS0→π0π0 detection technique and its application to the reconstruction of the decay B0 →J/ψKS0. Combining the results obtained using KS0→π+π- and KS0→π0π0 decays, we determine B(B0 →J/ψK0)=(9.5±0.8±0.6)×10-4, where the first uncertainty is statistical and the second one is systematic. We also obtain B(B0→χclK0)=(3.9-1.3 +1.9±0.4)×10-4 and B(B0→J/ψπ0)=(2.5-0.9 +1.1±0.2)×10-5.

Original languageEnglish (US)
Article number051101
Pages (from-to)1-5
Number of pages5
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume62
Issue number5
StatePublished - Sep 1 2000

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