CLAS physics database search results Measurement E1M545 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 2.6187859 0.16300398 108 3.6203265 0.19076845 180 4.3848305 0.16486742 251.99998 3.5227444 0.30512169 324 3.0577309 0.18681832