STUDY OF J/PSI THREE-BODY DECAYS INVOLVING BARYONS

Abstract

The $J/\Psi$ decay into a baryon pair and a pseudoscalar meson is computed, for some channels, in lowest order in perturbative QCD, modeling the baryon with a quark-diquark system. We use a set of parameters that has been proposed by some authors in order to fit the proton magnetic form factor $G_M^p$, the angular distribution of protons in the process $\gamma \gamma \to p\bar{p}$ and the width of ${\eta }_c\to \gamma \gamma$.

Comments: Plain Latex file, 10 pages; 1 figure appended as a uuencoded file; Keywords : Charmonium, Baryons, Paiar production, Particle Structure.