CLAS physics database search results Measurement E216M276 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.339075 0.0271651 0.06028737 54 0.286494 0.0154854 0.03017626 90 0.246429 0.0124818 0.02055036 126 0.260214 0.0116244 0.02208988 162 0.301351 0.0143063 0.02697943 198 0.294958 0.0132618 0.0254212 234 0.271643 0.012052 0.02200452 270 0.233844 0.012545 0.03803576 306 0.301936 0.020516 0.03225794 342 0.368221 0.038347 0.05596393