CLAS physics database search results Measurement E1M221 E93-006 CLAS experiment V. D. Burkert, M. Ripani 2003 phi(pi+) dsigma/dphi_pip Stat. error deg mcbn/rad mcbn/rad 216 1.7748805 0.2294313 288 2.0711989 0.46170768 0 2.1061516 0.43346855 71.99998 1.659785 0.25979212 144 1.8386693 0.26107207