CLAS physics database search results Measurement E15M57 E99-105 M. Garçon, M. Guidal, E. S. Smith 2002 phi dsigma/dphi Data errors deg mcbn/rad mcbn/rad 20 0.03586536 0.005974407 60 0.02352927 0.00375045 100 0.036362 0.003871197 140 0.04273996 0.005015234 180 0.02347946 0.006298701 220 0.04171737 0.005107833 260 0.03630449 0.00371846 300 0.02980014 0.0040676 340 0.04769532 0.007664154