Resonance structure of [formula presented] decays
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). © 2000 The American Physical Society.
Physical Review D - Particles, Fields, Gravitation and Cosmology
Asner, D. M.; Eppich, A.; Gronberg, J.; Hill, T. S.; Lange, D. J.; Morrison, R. J.; Boisvert, V.; Cassel, D. G.; Dickson, M.; Drell, P. S.; Ecklund, K. M.; Ehrlich, R.; Foland, A. D.; Gaidarev, P.; Galik, R. S.; Gibbons, L.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hopman, P. I.; Jones, C. D.; Kreinick, D. L.; Lohner, M.; Magerkurth, A.; Meyer, T. O.; Mistry, N. B.; Ng, C. R.; Nordberg, E.; Patterson, J. R.; Peterson, D.; Riley, D.; and Thayer, J. G., "Resonance structure of [formula presented] decays" (2000). Faculty Articles Indexed in Scopus. 2316.