CLAS physics database search results Measurement E209M8 CLAS12 RG-K K+Y recoil polarization Daniel S. Carman 2025 Q^2 P^0_y' Data errors Systematic errors GeV2 0.45 -0.3219 0.0159 0.0155 0.55 -0.3707 0.0126 0.0122 0.65 -0.4073 0.0133 0.0078 0.75 -0.437 0.0139 0.0136 0.85 -0.45 0.0147 0.0119 0.95 -0.4941 0.0159 0.0137 1.05 -0.4562 0.0171 0.0149 1.15 -0.4863 0.0191 0.0265 1.25 -0.4707 0.0202 0.0203 1.35 -0.4725 0.0208 0.0291 1.45 -0.4866 0.0231 0.0152 1.6 -0.4733 0.0175 0.0277 1.8 -0.4951 0.0208 0.017 2 -0.4517 0.0249 0.017 2.2 -0.5587 0.0289 0.015 2.4 -0.4866 0.0336 0.0261 2.65 -0.4787 0.033 0.043 2.95 -0.4676 0.0401 0.0293 3.3 -0.4717 0.0442 0.0286 4 -0.4157 0.0426 0.0122