CLAS Physics Database

Measurement E209M5

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
Q2, [GeV2] P0y uncertainty
0.35 -0.4767 0.0086
0.45 -0.4561 0.0086
0.55 -0.472 0.0096
0.65 -0.388 0.0103
0.75 -0.3673 0.0111
0.85 -0.3506 0.012
0.95 -0.3495 0.0132
1.05 -0.3743 0.0143
1.15 -0.3523 0.0153
1.25 -0.3592 0.0167
1.35 -0.3469 0.0179
1.45 -0.3694 0.0196
1.6 -0.3684 0.0156
1.8 -0.3597 0.0189
2.0 -0.3245 0.0224
2.2 -0.2824 0.0259
2.4 -0.2916 0.0305
2.65 -0.261 0.0294
2.95 -0.2904 0.0353
3.3 -0.2827 0.0394