CLAS physics database search results Measurement E1M250 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 1.3136952 0.26599365 108 1.9404478 0.31087598 180 2.2152216 0.25827903 251.99998 2.006237 0.42195213 324 1.2637025 0.19039662