CLAS physics database search results Measurement E62M535 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi-) dsigma/dpsi_pim Data errors deg mcbn/rad mcbn/rad 60 0.60930812 0.1745197 180 0.46141484 0.11147363 299.99997 0.78307778 0.14907044