CLAS physics database search results Measurement E209M2 CLAS12 RG-K K+Y recoil polarization Daniel S. Carman 2025 Q^2 P^0_y' Data errors Systematic errors GeV2 0.35 -0.3255 0.0089 0.0155 0.45 -0.427 0.0086 0.0125 0.55 -0.4301 0.0092 0.008 0.65 -0.3712 0.0102 0.0133 0.75 -0.4243 0.0109 0.0118 0.85 -0.4427 0.0117 0.0134 0.95 -0.4441 0.0128 0.0149 1.05 -0.4989 0.0137 0.0266 1.15 -0.487 0.0148 0.0204 1.25 -0.4889 0.0163 0.0291 1.35 -0.4698 0.0174 0.0151 1.45 -0.4574 0.0191 0.0276 1.6 -0.4644 0.0153 0.0169 1.8 -0.4625 0.0183 0.0171 2 -0.5197 0.0214 0.0148 2.2 -0.4955 0.0252 0.0262 2.4 -0.4885 0.0295 0.043 2.65 -0.4342 0.0286 0.0292 2.95 -0.3934 0.0347 0.0284 3.3 -0.4073 0.0386 0.0122