CLAS physics database search results Measurement E216M941 CLAS12 Run Group A Krishna Chandra 2018 psi(pi+) dsigma/dpsi_pip Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0754564 0.00772021 0.00887921 54 0.0741993 0.00725882 0.00763379 90 0.0804863 0.00743881 0.00877604 126 0.102468 0.0210529 0.01187911 162 0.098413 0.0168279 0.01046774 198 0.115071 0.0105021 0.01102329 234 0.106568 0.0154386 0.01330655 270 0.0675992 0.00885952 0.00691474 306 0.0620507 0.00609117 0.00722632 342 0.0646145 0.00633877 0.00737459