CLAS physics database search results Measurement E1M655 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 1.9082223 0.15144762 108 2.817034 0.16590068 180 3.4171042 0.18799496 251.99998 2.5993783 0.14615314 324 1.6889641 0.13009311