CLAS physics database search results Measurement E1M489 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi-) dsigma/dpsi_pim Stat. error deg mcbn/rad mcbn/rad 36 3.9814229 0.18378714 108 4.7381907 0.23061478 180 5.2757597 0.3067894 251.99998 4.6283793 0.27219316 324 4.3626266 0.20364416