CLAS physics database search results Measurement E216M582 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.226382 0.0137738 0.03216715 54 0.264664 0.0163553 0.02277533 90 0.245033 0.0104723 0.02213183 126 0.246516 0.00839405 0.01900215 162 0.233151 0.00823645 0.01929859 198 0.238912 0.00917656 0.0189026 234 0.239681 0.0100234 0.01811404 270 0.232123 0.0087878 0.01816793 306 0.247904 0.0132011 0.02248966 342 0.217133 0.0189004 0.03906447