CLAS physics database search results Measurement E1M507 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi-) dsigma/dpsi_pim Stat. error deg mcbn/rad mcbn/rad 36 3.0982168 0.1438114 108 3.4946628 0.16753165 180 4.0619645 0.21305771 251.99998 3.4404397 0.13985254 324 3.5289972 0.1953802