CLAS physics database search results Measurement E216M816 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.0898115 0.0115341 0.01526378 54 0.112521 0.00995428 0.01252069 90 0.101913 0.00829372 0.00833586 126 0.11081 0.00719933 0.00883252 162 0.108719 0.00715304 0.00959204 198 0.11705 0.0072789 0.00934574 234 0.104593 0.00755068 0.00948357 270 0.123846 0.014608 0.01103724 306 0.124927 0.0122056 0.01238734 342 0.0984456 0.0100353 0.01427881