CLAS physics database search results Measurement E216M357 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.669538 0.184544 0.18564203 54 0.520149 0.0156738 0.04129018 90 0.473966 0.0115594 0.0368684 126 0.488919 0.0118811 0.03741728 162 0.521323 0.0163507 0.04229979 198 0.501766 0.0156897 0.04175088 234 0.463163 0.0308686 0.033776 270 0.497107 0.0188461 0.03834171 306 0.488787 0.0164167 0.03825097 342 0.527494 0.0551373 0.06719326