CLAS physics database search results Measurement E1M162 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi-) dsigma/dpsi_pim Stat. error deg mcbn/rad mcbn/rad 36 1.4614784 0.52832228 108 2.0390303 0.33079937 180 2.2788591 0.4296532 251.99998 2.5384989 0.35208777 324 1.9079336 0.22030367