CLAS physics database search results Measurement E1M606 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi-) dsigma/dpsi_pim Stat. error deg mcbn/rad mcbn/rad 36 2.0095546 0.15894665 108 2.5947618 0.19070736 180 2.4883945 0.17481501 251.99998 2.7064197 0.25621676 324 2.2323453 0.15545957