CLAS physics database search results Measurement E62M53 E-94-005 CLAS experiment L. Elouadrhiri 2006 phi(pi+) dsigma/dphi_pip Data errors deg mcbn/rad mcbn/rad 45 1.2362974 0.17897075 135 0.73610258 0.24865496 225 0.77839088 0.3016865 315 1.4352174 0.20941016