CLAS physics database search results Measurement E62M629 E-94-005 CLAS experiment L. Elouadrhiri 2006 phi(pi+) dsigma/dphi_pip Data errors deg mcbn/rad mcbn/rad 45 0.47268167 0.06473919 135 0.31269968 0.074156553 225 0.66249669 0.31984374 315 0.5127852 0.08344467