CLAS physics database search results Measurement E216M753 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.134393 0.0151541 0.01512654 54 0.147837 0.00756027 0.01126615 90 0.14618 0.00764466 0.01082048 126 0.154999 0.0065712 0.01253581 162 0.142734 0.00726562 0.01097767 198 0.149216 0.0058991 0.01154232 234 0.147961 0.0070818 0.01195632 270 0.130039 0.00643464 0.01026612 306 0.139273 0.0122861 0.02373518 342 0.127698 0.0143984 0.01897027