CLAS physics database search results Measurement E62M304 E-94-005 CLAS experiment L. Elouadrhiri 2006 phi(pi-) dsigma/dphi_pim Data errors deg mcbn/rad mcbn/rad 45 0.66562521 0.15655403 135 0.5345543 0.095608078 225 0.55480808 0.096669175 315 0.54607308 0.13234428