CLAS Physics Database

Measurement E209M3

Experiment: CLAS12 RG-K K+Y recoil polarization
Year: 2025
Spokesperson: Daniel S. Carman
Reaction: ep → K+ Λ
Polarization: final
Quantity: P0y′
Q2: 0.3 — 3.5 GeV2
W: 1.625 — 2.4 GeV
Ebeam: 6.535 GeV
Publication:
D. S. Carman et al. (CLAS Collaboration) Recoil Polarization in K+Y Electroproduction in the Nucleon Resonance Region with CLAS12 // https://arxiv.org/abs/2505.12030

Measurement data
W, [GeV] P0y′ uncertainty
1.64 -0.2939 0.0327
1.66 -0.3101 0.02
1.69 -0.3924 0.0149
1.71 -0.3997 0.0147
1.74 -0.4575 0.0111
1.76 -0.4879 0.0107
1.79 -0.5111 0.0114
1.81 -0.5023 0.0123
1.84 -0.4925 0.0123
1.86 -0.4723 0.0132
1.89 -0.425 0.0132
1.91 -0.4506 0.0136
1.94 -0.3912 0.0146
1.96 -0.3824 0.0149
1.99 -0.3821 0.0155
2.01 -0.4113 0.0165
2.04 -0.4105 0.0174
2.06 -0.4286 0.0182
2.09 -0.4577 0.0187
2.11 -0.4273 0.0194
2.14 -0.4187 0.0204
2.16 -0.3947 0.0213
2.19 -0.4141 0.0216
2.21 -0.3752 0.0223
2.24 -0.3004 0.0238
2.26 -0.3418 0.0242
2.29 -0.2846 0.0253
2.31 -0.2864 0.0265
2.34 -0.2392 0.0273
2.36 -0.2798 0.0282
2.39 -0.3025 0.0295