CLAS physics database search results Measurement E62M188 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi+) dsigma/dpsi_pip Data errors deg mcbn/rad mcbn/rad 60 0.48447534 0.085990287 180 0.7975508 0.11692942 299.99997 0.65020245 0.1090861