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
0.35 0.237 0.0456
0.45 0.3083 0.0478
0.55 0.1925 0.0562
0.65 0.0779 0.0668
0.75 -0.0271 0.0788
0.85 -0.2166 0.0909
0.95 -0.1548 0.102
1.05 -0.3726 0.1183
1.15 -0.2186 0.1336
1.25 -0.246 0.1492
1.35 -0.1876 0.1717
1.45 -0.2831 0.1933
1.6 -0.4612 0.1596
1.8 -0.2536 0.1981
2.0 -0.2244 0.2354
2.2 -0.2356 0.2696
2.4 0.4791 0.3094
2.65 0.0374 0.3263
2.95 0.293 0.4358
3.3 0.4296 0.5325