CLAS physics database search results Measurement E62M425 E-94-005 CLAS experiment L. Elouadrhiri 2006 phi(pi+) dsigma/dphi_pip Data errors deg mcbn/rad mcbn/rad 45 0.63093114 0.086209215 135 0.45553675 0.13981462 225 0.52033985 0.17471926 315 0.55080336 0.078846715