CLAS physics database search results Measurement E216M194 CLAS12 Run Group A Krishna Chandra 2018 psi(pi+) dsigma/dpsi_pip Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.708458 0.0139175 0.08254653 54 0.66335 0.0131876 0.07274336 90 0.709427 0.0143482 0.07141267 126 0.805058 0.0157548 0.07220448 162 0.892505 0.0179975 0.1085989 198 0.852825 0.019096 0.07650707 234 0.808856 0.017956 0.07462379 270 0.713989 0.0248968 0.07318688 306 0.625254 0.0135427 0.07210334 342 0.675405 0.0133522 0.07505316