CLAS physics database search results Measurement E216M437 CLAS12 Run Group A Krishna Chandra 2018 psi(pi+) dsigma/dpsi_pip Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.387831 0.0121908 0.04738971 54 0.384653 0.00988591 0.04442179 90 0.413537 0.0114212 0.04388613 126 0.469685 0.0138562 0.04768785 162 0.503817 0.0182157 0.0530797 198 0.481466 0.0134372 0.05183091 234 0.427554 0.0123012 0.04552993 270 0.409951 0.0151905 0.04454061 306 0.364379 0.00930729 0.04356945 342 0.365133 0.0129061 0.0454866