CLAS physics database search results Measurement E216M500 CLAS12 Run Group A Krishna Chandra 2018 psi(pi+) dsigma/dpsi_pip Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.267696 0.0116444 0.02653309 54 0.259304 0.00853877 0.02208842 90 0.30981 0.0106492 0.02307784 126 0.364227 0.0105497 0.02886466 162 0.46297 0.0142214 0.03648601 198 0.497085 0.0166508 0.03806709 234 0.350334 0.0118182 0.02686697 270 0.289256 0.00906532 0.02406969 306 0.243157 0.00842544 0.01966727 342 0.272034 0.00851709 0.02741761