CLAS physics database search results Measurement E209M1 CLAS12 RG-K K+Y recoil polarization Daniel S. Carman 2025 cos(theta_K^c.m.) P^0_y' Data errors Systematic errors -0.96 0.2182 0.1258 0.1978 -0.88 0.0053 0.0254 0.0305 -0.8 -0.0929 0.0166 0.0212 -0.72 -0.1982 0.0148 0.011 -0.64 -0.3185 0.0144 0.0054 -0.56 -0.4207 0.0141 0.026 -0.48 -0.5367 0.0148 0.015 -0.4 -0.5663 0.0151 0.0242 -0.32 -0.6314 0.0156 0.0113 -0.24 -0.6524 0.0155 0.0197 -0.16 -0.66 0.0153 0.0127 -0.08 -0.6421 0.0154 0.0245 0 -0.6449 0.0145 0.0121 0.08 -0.6024 0.0144 0.0231 0.16 -0.6008 0.0143 0.0089 0.24 -0.5718 0.0138 0.0124 0.32 -0.551 0.0135 0.0101 0.4 -0.5358 0.0129 0.0082 0.48 -0.5396 0.012 0.0115 0.56 -0.5 0.0117 0.0096 0.64 -0.4782 0.0113 0.0098 0.72 -0.4124 0.0112 0.0208 0.8 -0.4068 0.0115 0.0199 0.88 -0.3076 0.0126 0.0229 0.96 -0.1477 0.0163 0.0121