CLAS physics database search results Measurement E195M92 CLAS12 RG-K Daniel S. Carman 2022 W P'_x Data errors Systematic errors GeV 1.64 0.08408 0.06381 0.02155 1.72 0.05197 0.03616 0.01718 1.8 0.0261 0.03606 0.01745 1.88 0.02973 0.03731 0.01779 1.96 0.02329 0.03716 0.01841 2.04 -0.01801 0.03646 0.01747 2.12 0.0292 0.03516 0.01727 2.2 0.05337 0.03541 0.01703 2.28 0.0029 0.03552 0.01687 2.36 0.05365 0.03688 0.01731