CLAS physics database search results Measurement E62M271 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi-) dsigma/dpsi_pim Data errors deg mcbn/rad mcbn/rad 36 5.7359247 0.31950381 108 6.0167952 0.3287639 180 5.3860111 0.40124086 251.99998 6.6138968 0.45027786 324 5.7052655 0.31893313