CLAS physics database search results Measurement E1M282 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi-) dsigma/dpsi_pim Stat. error deg mcbn/rad mcbn/rad 36 1.1338476 0.24964428 108 1.4362807 0.17438836 180 1.796645 0.27359125 251.99998 1.376145 0.24417673 324 1.0484458 0.11530861