CLAS physics database search results Measurement E216M303 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.710595 0.158768 0.16032075 54 0.485481 0.019795 0.06445039 90 0.459171 0.0186813 0.04364378 126 0.40876 0.0143748 0.03206778 162 0.481953 0.0206731 0.03665948 198 0.441797 0.0129058 0.03295262 234 0.425843 0.0137262 0.03192941 270 0.444274 0.0159969 0.03553828 306 0.517565 0.0440398 0.05244814 342 0.497227 0.0280115 0.07853662