CLAS physics database search results Measurement E216M654 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0976716 0.0107866 0.01520097 54 0.0846245 0.00942248 0.00815085 90 0.0764343 0.00714757 0.00664882 126 0.106032 0.010579 0.01197257 162 0.0943317 0.00949304 0.00757975 198 0.102875 0.00739292 0.00865373 234 0.0787383 0.00770984 0.00664536 270 0.0847192 0.00945948 0.00867314 306 0.102678 0.0102181 0.01133285 342 0.113233 0.0327087 0.02815162