CLAS physics database search results Measurement E216M888 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0305316 0.0130571 0.01095798 54 0.00816061 0.00269667 0.00177603 90 0.0208341 0.00588315 0.00475544 126 0.0297284 0.00650946 0.00562743 162 0.0252578 0.00586516 0.00458799 198 0.0164827 0.00458034 0.0047205 234 0.0237295 0.00585743 0.0022781 270 0.0148416 0.00466865 0.00176001 306 0.0137831 0.00605431 0.00316209 342 0.0207417 0.00852333 0.0053385