CLAS physics database search results Measurement E62M728 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 60 0.52381843 0.10661991 180 0.55369771 0.086642385 299.99997 0.60823178 0.15536982