CLAS physics database search results Measurement E1M620 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 2.086158 0.1331193 108 2.8297572 0.23972151 180 3.31498 0.15846965 251.99998 2.8304894 0.20280272 324 2.3133337 0.18208636