CLAS physics database search results Measurement E1M810 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi-) dsigma/dpsi_pim Stat. error deg mcbn/rad mcbn/rad 36 2.1056137 0.14124729 108 2.4100578 0.17334029 180 2.689409 0.1924316 251.99998 2.3261585 0.14770861 324 2.2077684 0.15020671