CLAS physics database search results Measurement E216M465 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.360851 0.0241223 0.05470991 54 0.35034 0.012303 0.03259871 90 0.387512 0.0171644 0.03421464 126 0.357919 0.00895404 0.02816775 162 0.356333 0.00876115 0.02894859 198 0.370592 0.00932247 0.03264816 234 0.355662 0.0102618 0.02790843 270 0.362519 0.0189049 0.03050478 306 0.372201 0.0118075 0.03405461 342 0.359465 0.0214257 0.04651208