CLAS physics database search results Measurement E216M672 CLAS12 Run Group A Krishna Chandra 2018 psi(p) dsigma/dpsi_pr Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 18 0.161855 0.0417579 0.02091437 54 0.0823811 0.0145227 0.01345292 90 0.0996971 0.00744984 0.00776154 126 0.104222 0.00628512 0.00807206 162 0.112202 0.00722524 0.00875389 198 0.104304 0.00706286 0.00852144 234 0.103833 0.0063281 0.00849124 270 0.0956766 0.00633081 0.00765901 306 0.0929992 0.00794116 0.00908405 342 0.13318 0.0281988 0.0238274