CLAS physics database search results Measurement E216M402 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.254739 0.0121072 0.04651781 54 0.258359 0.0330275 0.03130278 90 0.174717 0.0120206 0.01468409 126 0.202823 0.0110414 0.01753416 162 0.217334 0.0100333 0.01718548 198 0.201355 0.0106802 0.01753797 234 0.20395 0.0115059 0.02172528 270 0.199168 0.0121046 0.0164722 306 0.225648 0.0214652 0.02575164 342 0.217573 0.010222 0.04525041