CLAS physics database search results Measurement E216M969 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0780592 0.0138891 0.00863442 54 0.0810342 0.0137007 0.0138088 90 0.0954951 0.0112756 0.01556162 126 0.0790686 0.0094384 0.00706961 162 0.0899997 0.00739828 0.00873172 198 0.0806076 0.00727975 0.00678854 234 0.0840469 0.00770655 0.00758289 270 0.0705379 0.00720047 0.00606948 306 0.0836563 0.00942271 0.00812042 342 0.105804 0.0296526 0.02907535