CLAS physics database search results Measurement E62M426 E-94-005 CLAS experiment L. Elouadrhiri 2006 phi(p) dsigma/dphi_pr Data errors deg mcbn/rad mcbn/rad 45 0.48129573 0.11486737 135 0.60123205 0.1277239 225 0.71393514 0.10920431 315 0.1537928 0.065345727