CLAS physics database search results Measurement E216M897 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0316514 0.010808 0.00697889 54 0.0306474 0.00691234 0.00349146 90 0.0399292 0.00740235 0.00470117 126 0.0410947 0.00664059 0.00478806 162 0.0335414 0.00701639 0.00441081 198 0.0348223 0.00630734 0.0043903 234 0.0416829 0.00719485 0.00615823 270 0.0337245 0.00690315 0.00487375 306 0.0377032 0.0142389 0.00773626 342 0.0474422 0.0255137 0.01811111