Excited Nucleons at BESIII

摘要

Based on 106×10~6Ψ(2S) events collected with BESIII at the BEPCII, partial wave analysis(PWA) of Ψ(2S) → ppη is performed. Clear signals for N~*(1535) are observed and the mass, width and spin-parity are measured. The decay of Ψ(2S) → ppπ~0 is also studied.