New measurements of [Formula Presented] decays to charmonium final states

R. A. Briere, G. P. Chen, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, N. E. Adam, J. P. Alexander, K. Berkelman, D. G. Cassel, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, L. Fields, R. S. Galik, L. Gibbons, B. Gittelman, R. Gray, S. W. Gray, D. L. HartillB. K. Heltsley, D. Hertz, L. Hsu, C. D. Jones, J. Kandaswamy, D. L. Kreinick, V. E. Kuznetsov, H. Mahlke-Krüger, T. O. Meyer, P. U.E. Onyisi, J. R. Patterson, D. Peterson, J. Pivarski, D. Riley, J. L. Rosner*, A. Ryd, A. J. Sadoff, H. Schwarthoff, M. R. Shepherd, W. M. Sun, J. G. Thayer, D. Urner, T. Wilksen, M. Weinberger, S. B. Athar, P. Avery, L. Breva-Newell, R. Patel, V. Potlia, H. Stoeck, J. Yelton, P. Rubin, B. I. Eisenstein, G. D. Gollin, I. Karliner, D. Kim, N. Lowrey, P. Naik, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, J. Wiss, K. W. Edwards, D. Besson, K. Y. Gao, D. T. Gong, Y. Kubota, S. Z. Li, R. Poling, A. W. Scott, A. Smith, C. J. Stepaniak, J. Urheim, Z. Metreveli, K. K. Seth, A. Tomaradze, P. Zweber, J. Ernst, K. Arms, K. K. Gan, H. Severini, P. Skubic, D. M. Asner, S. A. Dytman, S. Mehrabyan, J. A. Mueller, V. Savinov, Z. Li, A. Lopez, H. Mendez, J. Ramirez, G. S. Huang, D. H. Miller, V. Pavlunin, B. Sanghi, E. I. Shibata, I. P.J. Shipsey, G. S. Adams, M. Chasse, J. P. Cummings, I. Danko, J. Napolitano, D. Cronin-Hennessy, C. S. Park, W. Park, J. B. Thayer, E. H. Thorndike, T. E. Coan, Y. S. Gao, F. Liu, R. Stroynowski, M. Artuso, C. Boulahouache, S. Blusk, J. Butt, E. Dambasuren, O. Dorjkhaidav, N. Menaa, R. Mountain, H. Muramatsu, R. Nandakumar, R. Redjimi, R. Sia, T. Skwarnicki, S. Stone, J. C. Wang, K. Zhang, A. H. Mahmood, S. E. Csorna, G. Bonvicini, D. Cinabro, M. Dubrovin, A. Bornheim, E. Lipeles, S. P. Pappas, A. J. Weinstein

*Corresponding author for this work

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Abstract

Using data collected by the CLEO III detector at CESR, we report on measurements of [Formula Presented] decays to charmonium final states. The data sample used for this analysis consists of [Formula Presented] [Formula Presented] decays, representing about 35 times more data than previous CLEO [Formula Presented] data samples. We present substantially improved measurements of the branching fraction [Formula Presented] using [Formula Presented] and [Formula Presented] decays. The branching fractions for these two modes are averaged, thereby obtaining: [Formula Presented]. A greatly improved measurement of the [Formula Presented] momentum distribution is presented and indicates a spectrum which is much softer than predicted by the color-octet model and somewhat softer than the color-singlet model. First measurements of the [Formula Presented] polarization and production angle are also presented. In addition, we report on the first observation of [Formula Presented] and evidence for [Formula Presented]. Their branching fractions are measured relative to [Formula Presented] and are found to be [Formula Presented], [Formula Presented], and [Formula Presented] at 90% confidence level. The resulting feed-down contributions to [Formula Presented] are [Formula Presented] for [Formula Presented], [Formula Presented] for [Formula Presented], [Formula Presented] for [Formula Presented], and [Formula Presented] at 90% confidence level for [Formula Presented]. These measurements (apart from [Formula Presented]) are about a factor of 2 larger than expected based on the color-octet model.

Original languageEnglish (US)
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume70
Issue number7
DOIs
StatePublished - 2004

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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