CLAS physics database search results Measurement E62M581 E-94-005 CLAS experiment L. Elouadrhiri 2006 phi(pi+) dsigma/dphi_pip Data errors deg mcbn/rad mcbn/rad 36 3.8967309 0.28691411 108 3.0246847 0.2527605 180 3.6386969 0.62431061 251.99998 3.3840067 0.31164908 324 3.262183 0.25220752