Baryon Resonances from J/ψ Decays

Main problems in both theoretical and experimental baryon spectroscopy are briefly discussed. Recent results from baryon program at BES are presented. Many N*, Λ* and Σ* peaks have been observed from various channels of J/ψ decays. Especially, in {J {ψ -> pπ ^ - bar n + {c}{.c}{.}}}} ; processes, besides two well-known N* peaks at 1500 MeV and 1670 MeV, there are two new N* peaks clearly shown up in the pπ invariant mass spectra around 1360 MeV and 2030 MeV, respectively. They are the first direct observation of the N* (1440) peak and a long-sought "missing" N* peak above 2 GeV in the πN invariant mass spectrum. In ψ -> K_S⁰ pK^ - bar n + {c}{.c}{.} decays, no pentaquark state is observed.