CLAS physics database search results Measurement E216M249 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.580055 0.0194998 0.05601741 54 0.579375 0.0179553 0.04730087 90 0.57945 0.0154153 0.0449144 126 0.559723 0.0155257 0.04199004 162 0.594157 0.0131116 0.04714085 198 0.579968 0.0170471 0.04847628 234 0.55252 0.011127 0.04273977 270 0.578997 0.015107 0.0443942 306 0.578063 0.0184625 0.04577871 342 0.617058 0.0457822 0.06898266