CLAS physics database search results Measurement E1M126 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 1.6905677 0.57926482 108 1.9756243 0.38522646 180 3.3945117 0.68835115 251.99998 3.0624738 0.50733232 324 1.7897625 0.58239192