Resonance structure of [formula presented] decays

D. M. Asner, A. Eppich, J. Gronberg, T. S. Hill, D. J. Lange, R. J. Morrison, V. Boisvert, D. G. Cassel, M. Dickson, P. S. Drell, K. M. Ecklund, R. Ehrlich, A. D. Foland, P. Gaidarev, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. HeltsleyP. I. Hopman, C. D. Jones, D. L. Kreinick, M. Lohner, A. Magerkurth, T. O. Meyer, N. B. Mistry, C. R. Ng, E. Nordberg, J. R. Patterson, D. Peterson, D. Riley, J. G. Thayer, P. G. Thies, B. Valant-Spaight, A. Warburton

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Using a sample of 4.7 (Formula presented) integrated luminosity accumulated with the CLEO II detector at the Cornell Electron Storage Ring (CESR), we investigate the mass spectrum and resonant structure in (Formula presented) decays. We measure the relative fractions of (Formula presented) and (Formula presented) resonances in these decays, as well as the (Formula presented) masses and widths. Our fitted (Formula presented) resonances are somewhat broader than previous hadroproduction measurements, and in agreement with recent CERN LEP results from tau decay. The larger central value of our measured width supports models which attribute the small (Formula presented) branching fraction to larger (Formula presented) widths than are presently tabulated. We also determine the (Formula presented) mixing angle (Formula presented).

Original languageEnglish (US)
Pages (from-to)11
Number of pages1
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number7
StatePublished - 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

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


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