CLAS physics database search results Measurement E1M501 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 3.6683998 0.19968231 108 4.2737498 0.24328278 180 4.9342933 0.17579263 251.99998 4.210218 0.15510087 324 3.7433057 0.19040768