CLAS physics database search results Measurement E216M472 CLAS12 Run Group A Krishna Chandra 2018 psi(pi-) dsigma/dpsi_pim Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.314239 0.0109513 0.03754977 54 0.331272 0.0137442 0.02975141 90 0.35343 0.0117594 0.02731061 126 0.369421 0.0108229 0.02768271 162 0.427882 0.00985886 0.03178433 198 0.448712 0.00957466 0.03286635 234 0.375652 0.00960238 0.02897351 270 0.321915 0.0117879 0.02595486 306 0.316632 0.0126626 0.03360303 342 0.319369 0.0125302 0.03778683