We report on a study of the invariant mass spectrum of the hadronic system in the decay (Formula presented) This study was performed with data obtained with the CLEO II detector operating at the CESR (Formula presented) collider. We present fits to phenomenological models in which resonance parameters associated with the (Formula presented) and (Formula presented) mesons are determined. The (Formula presented) spectral function inferred from the invariant mass spectrum is compared with data on (Formula presented) as a test of the conserved vector current theorem. We also discuss the implications of our data with regard to estimates of the hadronic contribution to the muon anomalous magnetic moment.
|Original language||English (US)|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|State||Published - 2000|