CLAS physics database search results Measurement E216M330 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.59682 0.0321473 0.08672784 54 0.506349 0.0246292 0.04622974 90 0.485231 0.0132646 0.03910896 126 0.490534 0.0148132 0.03930953 162 0.497708 0.011462 0.03760553 198 0.489004 0.0135902 0.03796768 234 0.465591 0.0112202 0.03546773 270 0.481784 0.0201233 0.03842991 306 0.514615 0.019815 0.05003799 342 0.521384 0.0701823 0.08886749