Analysis of $��^{+}(1232)$ Isobar Observables, with Improved Quark Distribution Amplitudes

A model distribution amplitude for the $��^{+}(1232)$ isobar is proposed, derived on the basis of the QCD sum-rule calculations of Farrar et al. combined with those of Carlson and Poor. The transition form factor $��p��^{+}$ is calculated modeling the proton by selected distribution amplitudes. Furthermore, predictions are made for some exclusive charmonium decays into $��\bar��$. The obtained results are compared with other theoretical models and with the available data.
15 pages, RUB-TPII-22/92 Preprint