CLAS physics database search results Measurement E216M186 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 1.0153 0.0504604 0.14221284 54 0.866155 0.0574292 0.10248243 90 0.811785 0.0359408 0.07719528 126 0.842099 0.0207524 0.06994936 162 0.88979 0.0196359 0.06972378 198 0.825934 0.0173635 0.06614349 234 0.769223 0.016761 0.06034231 270 0.753681 0.0151973 0.06137843 306 0.958444 0.121632 0.12811869 342 0.794216 0.0363807 0.12843663