CLAS physics database search results Measurement E1M533 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 2.4715581 0.15461403 108 3.438843 0.19367635 180 4.1909289 0.1855952 251.99998 3.3427281 0.156865 324 3.0953062 0.20845157