CLAS physics database search results Measurement E62M559 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi-) dsigma/dpsi_pim Data errors deg mcbn/rad mcbn/rad 36 2.2533956 0.37806877 108 2.0223784 0.25852227 180 1.9116871 0.33791125 251.99998 1.9766477 0.31504306 324 1.4939036 0.2245663