CLAS physics database search results Measurement E195M90 CLAS12 RG-K Daniel S. Carman 2022 W P'_x Data errors Systematic errors GeV 1.64 0.02097 0.04979 0.01491 1.72 -0.00711 0.0308 0.01519 1.8 -0.01369 0.0325 0.01845 1.88 0.00621 0.03683 0.02572 1.96 0.03164 0.04531 0.03146 2.04 -0.0007 0.05989 0.03631 2.12 -0.04759 0.08015 0.04262 2.2 0.00553 0.10285 0.04394 2.28 0.17208 0.16246 0.05538 2.36 0.32737 0.21598 0.06006