CLAS physics database search results Measurement E209M47 CLAS12 RG-K K+Y recoil polarization Daniel S. Carman 2025 W P^0_y' Data errors Systematic errors 1.64 -0.1396 0.0678 0.0174 1.72 -0.0151 0.0283 0.0173 1.8 -0.0546 0.0287 0.0173 1.88 0.0155 0.034 0.0173 1.96 -0.0455 0.042 0.0173 2.04 -0.1407 0.0469 0.0174 2.12 -0.0734 0.054 0.0173 2.2 -0.1519 0.0606 0.0174 2.28 0.0353 0.0699 0.0173 2.36 0.1325 0.0798 0.0174