CLAS physics database search results Measurement E1M724 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 3.2062967 0.18264128 108 3.874119 0.22759114 180 4.2387285 0.2308612 251.99998 4.0536127 0.30922505 324 3.3845832 0.24240738