CLAS physics database search results Measurement E216M851 CLAS12 Run Group A Krishna Chandra 2018 psi(pi+) dsigma/dpsi_pip Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0750181 0.00501202 0.00777001 54 0.0748228 0.00668909 0.00672952 90 0.0952092 0.00795741 0.00981569 126 0.114719 0.0104435 0.01103739 162 0.108272 0.0118783 0.00974446 198 0.14605 0.0115671 0.01176037 234 0.106754 0.00718299 0.00936347 270 0.0869963 0.00636984 0.00753355 306 0.0828324 0.00634434 0.00882844 342 0.0657542 0.00801834 0.00821014