CLAS physics database search results Measurement E62M66 E-94-005 CLAS experiment L. Elouadrhiri 2006 phi(p) dsigma/dphi_pr Data errors deg mcbn/rad mcbn/rad 36 1.414028 0.22958803 108 1.6538422 0.22037636 180 2.0177581 0.34069043 251.99998 1.6851072 0.27316499 324 1.2152547 0.14128265