Measurement of exclusive baryon-antibaryon decays of χcJ mesons

P. Naik, J. Rademacker, D. M. Asner, K. W. Edwards, J. Reed, R. A. Briere, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, J. L. Rosner, J. P. Alexander, D. G. Cassel, J. E. Duboscq, R. Ehrlich, L. Fields, L. Gibbons, R. Gray, S. W. Gray, D. L. HartillB. K. Heltsley, D. Hertz, J. M. Hunt, J. Kandaswamy, D. L. Kreinick, V. E. Kuznetsov, J. Ledoux, H. Mahlke-Krüger, D. Mohapatra, P. U.E. Onyisi, J. R. Patterson, D. Peterson, D. Riley, A. Ryd, A. J. Sadoff, X. Shi, S. Stroiney, W. M. Sun, T. Wilksen, S. B. Athar, R. Patel, J. Yelton, P. Rubin, B. I. Eisenstein, I. Karliner, S. Mehrabyan, N. Lowrey, M. Selen, E. J. White, J. Wiss, R. E. Mitchell, M. R. Shepherd, D. Besson, T. K. Pedlar, D. Cronin-Hennessy, K. Y. Gao, J. Hietala, Y. Kubota, T. Klein, B. W. Lang, R. Poling, A. W. Scott, P. Zweber, S. Dobbs, Z. Metreveli, K. K. Seth, A. Tomaradze, J. Libby, A. Powell, G. Wilkinson, K. M. Ecklund, W. Love, V. Savinov, H. Mendez, J. Y. Ge, D. H. Miller, I. P.J. Shipsey, B. Xin, G. S. Adams, M. Anderson, J. P. Cummings, I. Danko, D. Hu, B. Moziak, J. Napolitano, Q. He, J. Insler, H. Muramatsu, C. S. Park, E. H. Thorndike, F. Yang, M. Artuso, S. Blusk, S. Khalil, J. Li, R. Mountain, S. Nisar, K. Randrianarivony, N. Sultana, T. Skwarnicki, S. Stone, J. C. Wang, L. M. Zhang, G. Bonvicini, D. Cinabro, M. Dubrovin, A. Lincoln

Research output: Contribution to journalArticle

Abstract

Using a sample of 2.59×107 ψ(2S) decays collected by the CLEO-c detector, we present results of a study of χcJ (J=0, 1, 2) decays into baryon-antibaryon final states. We present the world's most precise measurements of the χcJ→pp̄ and χcJ→ΛΛ̄ branching fractions, and the first measurements of χc0 decays to other hyperons. These results illuminate the decay mechanism of the χc states.

Original languageEnglish (US)
Article number031101
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume78
Issue number3
DOIs
StatePublished - Aug 15 2008

ASJC Scopus subject areas

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

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    Naik, P., Rademacker, J., Asner, D. M., Edwards, K. W., Reed, J., Briere, R. A., Ferguson, T., Tatishvili, G., Vogel, H., Watkins, M. E., Rosner, J. L., Alexander, J. P., Cassel, D. G., Duboscq, J. E., Ehrlich, R., Fields, L., Gibbons, L., Gray, R., Gray, S. W., ... Lincoln, A. (2008). Measurement of exclusive baryon-antibaryon decays of χcJ mesons. Physical Review D - Particles, Fields, Gravitation and Cosmology, 78(3), [031101]. https://doi.org/10.1103/PhysRevD.78.031101