CLAS physics database search results Measurement E216M906 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0488929 0.0198562 0.00953442 54 0.0600619 0.0262031 0.01116895 90 0.033907 0.00576656 0.00463626 126 0.0400334 0.00586009 0.00483508 162 0.0521094 0.00787928 0.00641242 198 0.0369434 0.00566414 0.0041484 234 0.0310988 0.00550861 0.00402801 270 0.020221 0.00440703 0.00312274 306 0.0366434 0.00781158 0.00461817 342 0.0239897 0.00611453 0.00641293