CLAS physics database search results Measurement E1M642 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi-) dsigma/dpsi_pim Stat. error deg mcbn/rad mcbn/rad 36 2.5890806 0.16101217 108 3.0484669 0.21429327 180 3.1209393 0.23137845 251.99998 2.8078837 0.21787424 324 2.3930771 0.16470568