CLAS physics database search results Measurement E216M294 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.420593 0.0259344 0.05392984 54 0.450703 0.105804 0.08090012 90 0.323935 0.0253366 0.02870793 126 0.323824 0.0159875 0.02881946 162 0.33702 0.0129821 0.02561127 198 0.319279 0.0204832 0.03444314 234 0.305863 0.0109316 0.02333732 270 0.29836 0.0168815 0.02494033 306 0.384886 0.0209082 0.03395517 342 0.379445 0.0240257 0.0550174