CLAS physics database search results Measurement E62M763 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi-) dsigma/dpsi_pim Stat. error deg mcbn/rad mcbn/rad 36 2.0319438 0.42524174 108 2.4075239 0.34904775 180 1.7388356 0.3647351 251.99998 2.5173068 0.41399705 324 2.173744 0.30960074