Inst High Energy Phys, Beijing 100039, Peoples R China
; Acad Sci Czech Republ, Inst Nucl Phys, CZ-25068 Rez, Czech Republic
; CCAST, World Lab, Beijing 100080, Peoples R China
Article; Proceedings Paper
The baryonic decays of J/psi provide a new way to study the internal structure of baryons. We apply a simple diquark model to the calculation of the decay cross-sections for the reactions J/psi --> (p) over barp, (p) over barN* (1440), (N) over bar *N*, (&ULambda;) over bar Lambda and (&USigma;) over bar (0)Sigma(0). The results are different from those given by the ordinary constituent quark model. Hence these reactions may provide a new check of two different pictures for the baryons.