Abstract
We study three-body nonleptonic decays by introducing two-meson distribution amplitudes for the vector-pseudoscalar pair, such that the analysis is simplified into the one for two-body decays. The twist-2 and twist-3 two-meson distribution amplitudes, associated with longitudinally and transversely polarized mesons, are constrained by the experimental data of the and branching ratios. We then predict the and decay spectra in the invariant mass. Since the resonant contribution in the channel is negligible, the above decay spectra provide a clean test for the application of two-meson distribution amplitudes to three-body meson decays.
- Received 3 May 2004
DOI:https://doi.org/10.1103/PhysRevD.70.054006
©2004 American Physical Society