CLAS physics database search results Measurement E209M64 CLAS12 RG-K K+Y recoil polarization Daniel S. Carman 2025 W P^0_y' Data errors Systematic errors GeV 1.72 0.2673 0.7342 0.0716 1.8 0.9529 0.2811 0.0724 1.88 0.7188 0.2394 0.072 1.96 0.0338 0.3169 0.0715 2.04 0.19 0.2963 0.0715 2.12 0.9526 0.3406 0.0724 2.2 0.9839 0.3496 0.0725 2.28 0.959 0.3089 0.0724 2.36 0.9391 0.3184 0.0724