CLAS physics database search results Measurement E216M861 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0814108 0.0077038 0.00915337 54 0.0900298 0.00620105 0.0086353 90 0.0899887 0.00680517 0.0073474 126 0.0994161 0.00669076 0.00854633 162 0.0975319 0.00556833 0.00883984 198 0.0971156 0.00680445 0.00792721 234 0.0891941 0.00663515 0.00773959 270 0.0980608 0.00847122 0.00867088 306 0.0909505 0.00701866 0.00863531 342 0.0712387 0.0062894 0.00931098