CLAS physics database search results Measurement E1M519 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi-) dsigma/dpsi_pim Stat. error deg mcbn/rad mcbn/rad 36 3.0451615 0.1512588 108 3.4436924 0.15226696 180 4.1664605 0.23206131 251.99998 3.3103232 0.13988633 324 3.1378751 0.15354615