Study of the psi(2S) decay to p pbar pi+ pi-
  The branching ratios of psi(2S)-->p pbar Pi+ pi- and psi(2S)-->p pbar omega, omega--> pi+ pi- pi0 are measured and the pi+ pi- invariant mass distribution in the first decay is discussed by analyzing   14 million produced psi(2S) events collected by the BESII detector at the BEPC. 
J. G. Bian