CLAS physics database search results Measurement E216M409 CLAS12 Run Group A Krishna Chandra 2018 psi(pi-) dsigma/dpsi_pim Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.218918 0.020155 0.03922071 54 0.202443 0.0124147 0.01978033 90 0.198916 0.00880134 0.01715881 126 0.19317 0.00935989 0.01653337 162 0.212298 0.0086868 0.01817893 198 0.204156 0.00930427 0.01686128 234 0.233816 0.0204265 0.03035317 270 0.204043 0.01069 0.020894 306 0.178486 0.0121619 0.02056333 342 0.236219 0.0288796 0.03904739