CLAS physics database search results Measurement E216M204 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.794935 0.0526513 0.11162219 54 0.718209 0.0234733 0.07100368 90 0.692096 0.0145676 0.05863854 126 0.631144 0.0179172 0.05474461 162 0.673965 0.0148526 0.05947681 198 0.684697 0.018892 0.06249642 234 0.657893 0.0134628 0.05280955 270 0.68173 0.0171504 0.05868476 306 0.756327 0.0350011 0.07458081 342 0.652763 0.0179499 0.09422791