CLAS physics database search results Measurement E216M699 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.186248 0.0163235 0.02046548 54 0.168734 0.0123735 0.01455838 90 0.155067 0.0116727 0.01267351 126 0.165123 0.00699124 0.01288682 162 0.165412 0.00864106 0.0127877 198 0.161651 0.00872714 0.01230951 234 0.145359 0.00762716 0.01122245 270 0.14259 0.0103537 0.0134078 306 0.15815 0.0141481 0.01833945 342 0.133535 0.00989392 0.02024263