CLAS physics database search results Measurement E216M987 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0696858 0.011835 0.00780961 54 0.0792675 0.00890713 0.00782708 90 0.0766691 0.00920574 0.00677108 126 0.0838605 0.0067075 0.00766166 162 0.0845335 0.0071263 0.00840313 198 0.0841189 0.00727715 0.00806967 234 0.0672111 0.0102366 0.00622971 270 0.0777383 0.0097101 0.00864796 306 0.0757082 0.0143413 0.00844475 342 0.0583826 0.0184166 0.00741148