CLAS physics database search results Measurement E62M403 E-94-005 CLAS experiment L. Elouadrhiri 2006 psi(pi-) dsigma/dpsi_pim Data errors deg mcbn/rad mcbn/rad 36 5.1863484 0.33522069 108 4.9887266 0.39881229 180 5.8149805 0.45729411 251.99998 5.3368378 0.39190802 324 5.1833997 0.29984781