CLAS physics database search results Measurement E216M393 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.2143 0.0199171 0.04337799 54 0.189701 0.0174938 0.02597242 90 0.170743 0.0123952 0.01526556 126 0.193453 0.012673 0.02198091 162 0.208647 0.0109718 0.01574614 198 0.202437 0.0115451 0.0194621 234 0.175863 0.0104236 0.01453901 270 0.167671 0.00974318 0.01684183 306 0.224001 0.0414901 0.04221406 342 0.201296 0.0212868 0.04246835