CLAS physics database search results Measurement E62M533 E-94-005 CLAS experiment L. Elouadrhiri 2006 phi(pi+) dsigma/dphi_pip Data errors deg mcbn/rad mcbn/rad 45 0.60838443 0.15604946 135 0.64896399 0.15595821 225 0.62835419 0.12930837 315 0.61832237 0.10338811