CLAS physics database search results Measurement E209M12 CLAS12 RG-K K+Y recoil polarization Daniel S. Carman 2025 W P^0_y Data errors Systematic errors GeV 1.64 -0.2532 0.0442 0.0442 1.66 -0.325 0.0287 0.0423 1.69 -0.2438 0.0222 0.0371 1.71 -0.2763 0.0177 0.0322 1.74 -0.2827 0.0175 0.0104 1.76 -0.2784 0.0173 0.0055 1.79 -0.2916 0.0176 0.0121 1.81 -0.2446 0.0182 0.0139 1.84 -0.2814 0.0184 0.0113 1.86 -0.291 0.0192 0.0398 1.89 -0.3683 0.0195 0.0124 1.91 -0.3295 0.0208 0.0088 1.94 -0.361 0.0216 0.0146 1.96 -0.3583 0.0229 0.0095 1.99 -0.3844 0.0236 0.008 2.01 -0.419 0.0249 0.0266 2.04 -0.4529 0.0254 0.017 2.06 -0.4144 0.0272 0.017 2.09 -0.3793 0.0276 0.0295 2.11 -0.4403 0.0288 0.0102 2.14 -0.4231 0.0299 0.0423 2.16 -0.4283 0.0308 0.034 2.19 -0.3991 0.0318 0.0171 2.21 -0.4153 0.0326 0.0368 2.24 -0.4821 0.0336 0.0387 2.26 -0.5025 0.0346 0.0308 2.29 -0.4448 0.0353 0.0148 2.31 -0.5032 0.0368 0.0312 2.34 -0.4508 0.0382 0.0188 2.36 -0.4757 0.0389 0.0238 2.39 -0.4394 0.0397 0.0258