CLAS Physics Database

Measurement E209M24

Experiment: CLAS12 RG-K K+Y recoil polarization
Year: 2025
Spokesperson: Daniel S. Carman
Reaction: ep → K+ Σ0
Polarization: final
Quantity: P0y
Q2: 0.4 — 4.5 GeV2
W: 1.625 — 2.4 GeV
Ebeam: 7.546 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
1.74 0.9549 0.4408
1.76 0.5692 0.2313
1.79 0.4068 0.1788
1.81 0.254 0.1563
1.84 0.168 0.136
1.86 -0.1473 0.1232
1.89 0.019 0.1166
1.91 0.1032 0.1204
1.94 0.1182 0.1323
1.96 -0.1751 0.1457
1.99 0.0957 0.1601
2.01 0.014 0.1821
2.04 0.2363 0.1876
2.06 0.3785 0.2046
2.09 0.3991 0.2155
2.11 0.9515 0.212
2.14 0.0477 0.2374
2.16 0.1452 0.2271
2.19 -0.0644 0.2278
2.21 -0.0799 0.2337
2.24 0.4284 0.228
2.26 -0.4148 0.2319
2.29 0.0766 0.2353
2.31 0.3488 0.247
2.34 0.376 0.249
2.36 0.4202 0.2418
2.39 -0.2212 0.2648