CLAS physics database search results Measurement E209M44 CLAS12 RG-K K+Y recoil polarization Daniel S. Carman 2025 W P^0_y' Data errors Systematic errors GeV 1.64 -0.1073 0.0753 0.0173 1.72 -0.14 0.0315 0.0174 1.8 -0.2311 0.0301 0.0175 1.88 -0.232 0.031 0.0175 1.96 -0.1826 0.0318 0.0174 2.04 -0.1857 0.0322 0.0174 2.12 -0.1741 0.0312 0.0174 2.2 -0.1486 0.0318 0.0174 2.28 -0.1147 0.032 0.0173 2.36 -0.0168 0.0334 0.0173