CLAS physics database search results Measurement E216M788 CLAS12 Run Group A Krishna Chandra 2018 psi(pi+) dsigma/dpsi_pip Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0296196 0.00321333 0.00386618 54 0.0334749 0.00361623 0.00383695 90 0.0494101 0.00466759 0.00520823 126 0.0705015 0.00897767 0.00753005 162 0.0931653 0.0119788 0.00869013 198 0.0825103 0.00823627 0.00798955 234 0.0729395 0.00777724 0.00697449 270 0.0403158 0.00468051 0.00480685 306 0.036585 0.00395495 0.00412642 342 0.025138 0.00315572 0.00372926