CLAS Physics Database

Measurement E209M14

Experiment: CLAS12 RG-K K+Y recoil polarization
Year: 2025
Spokesperson: Daniel S. Carman
Reaction: ep → K+ Σ0
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
Q2, [GeV2] P0y′ uncertainty syst. uncert.
0.35 0.237 0.0456 0.0898
0.45 0.3083 0.0478 0.0502
0.55 0.1925 0.0562 0.0584
0.65 0.0779 0.0668 0.0938
0.75 -0.0271 0.0788 0.1742
0.85 -0.2166 0.0909 0.1025
0.95 -0.1548 0.102 0.1443
1.05 -0.3726 0.1183 0.1808
1.15 -0.2186 0.1336 0.0755
1.25 -0.246 0.1492 0.1315
1.35 -0.1876 0.1717 0.097
1.45 -0.2831 0.1933 0.1172
1.6 -0.4612 0.1596 0.1882
1.8 -0.2536 0.1981 0.1296
2.0 -0.2244 0.2354 0.0284
2.2 -0.2356 0.2696 0.0228
2.4 0.4791 0.3094 0.0816
2.65 0.0374 0.3263 0.0227
2.95 0.293 0.4358 0.2699
3.3 0.4296 0.5325 0.2472