CLAS physics database search results Measurement E1M223 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 1.5566163 0.44910398 108 2.0384536 0.39155143 180 2.5650444 0.31678653 251.99998 1.5741316 0.24220996 324 1.7164383 0.27446663