CLAS physics database search results Measurement E216M742 CLAS12 Run Group A Krishna Chandra 2018 psi(pi-) dsigma/dpsi_pim Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0989531 0.00768017 0.01276224 54 0.108696 0.00652065 0.01285902 90 0.141148 0.00987865 0.01425374 126 0.168666 0.0068383 0.01255504 162 0.20331 0.00975475 0.01602958 198 0.195145 0.00782869 0.01538975 234 0.170194 0.00777681 0.01352456 270 0.129016 0.00711352 0.01111596 306 0.116393 0.00784956 0.01031479 342 0.11836 0.011662 0.01233656