CLAS physics database search results Measurement E1M188 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 psi(pi+) dsigma/dpsi_pip Stat. error deg mcbn/rad mcbn/rad 36 1.692143 0.36086816 108 2.2107553 0.3210007 180 1.9770118 0.26873302 251.99998 1.6237718 0.25018317 324 1.8694192 0.64109975