CLAS physics database search results Measurement E216M644 CLAS12 Run Group A Krishna Chandra 2018 psi(pi+) dsigma/dpsi_pip Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0533723 0.00488888 0.00760773 54 0.0578218 0.00512674 0.00765265 90 0.0770745 0.00713734 0.00955605 126 0.0845029 0.0067018 0.00977235 162 0.117174 0.0154051 0.0168631 198 0.104248 0.00897174 0.01220215 234 0.0885196 0.0083905 0.01290623 270 0.068187 0.00599477 0.00839038 306 0.053794 0.00992058 0.0074084 342 0.107143 0.0418234 0.03713172