CLAS physics database search results Measurement E209M28 CLAS12 RG-K K+Y recoil polarization Daniel S. Carman 2025 W P^0_y' Data errors Systematic errors GeV 1.64 0.0189 0.0656 0.0173 1.72 -0.1588 0.0272 0.0174 1.8 -0.1451 0.0237 0.0174 1.88 -0.1344 0.023 0.0174 1.96 -0.2125 0.0222 0.0175 2.04 -0.1197 0.0217 0.0174 2.12 -0.0621 0.0215 0.0173 2.2 -0.0742 0.0206 0.0173 2.28 -0.03 0.0217 0.0173 2.36 -0.0098 0.0235 0.0173