CLAS physics database search results Measurement E216M140 CLAS12 Run Group A Krishna Chandra 2018 psi(pi+) dsigma/dpsi_pip Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.318999 0.016718 0.05032218 54 0.28225 0.00991564 0.04842291 90 0.32914 0.0130593 0.05432123 126 0.41192 0.0124785 0.06025404 162 0.473995 0.0145947 0.070269 198 0.494032 0.0154149 0.07075084 234 0.415765 0.0128881 0.06017389 270 0.302004 0.0118528 0.0508806 306 0.299816 0.0133049 0.04839375 342 0.329954 0.0121572 0.05031618