Measurement E195M2
| Experiment: | CLAS12 RG-K | |
|---|---|---|
| Year: | 2022 | |
| Spokesperson: | Daniel S. Carman | |
| Reaction: | ep → K+ Λ | |
| Polarization: | final | |
| Quantity: | P′x′ | |
| Q2: | 0.3 — 3.5 GeV2 | |
| W: | 1.6 — 2.4 GeV | |
| Ebeam: | 6.535 GeV | |
| Publication: |
D. S. Carman et al. (CLAS Collaboration) Beam-recoil transferred polarization in K + Y electroproduction in the nucleon resonance region with CLAS12 //
https://journals.aps.org/prc/abstract/10.1103/PhysRevC.105.065201
|
|
| Q2, [GeV2] | P′x′ | uncertainty | syst. uncert. |
|---|---|---|---|
| 0.35 | -0.18458 | 0.00912 | 0.0211 |
| 0.45 | -0.20381 | 0.00887 | 0.02005 |
| 0.55 | -0.21435 | 0.00975 | 0.01928 |
| 0.65 | -0.20852 | 0.01058 | 0.01848 |
| 0.75 | -0.19238 | 0.0115 | 0.01813 |
| 0.85 | -0.2055 | 0.01246 | 0.01767 |
| 0.95 | -0.22816 | 0.01347 | 0.01762 |
| 1.05 | -0.245 | 0.01461 | 0.01704 |
| 1.15 | -0.2014 | 0.01582 | 0.01707 |
| 1.25 | -0.20481 | 0.01715 | 0.01677 |
| 1.35 | -0.22927 | 0.01878 | 0.0167 |
| 1.45 | -0.27865 | 0.02016 | 0.01691 |
| 1.6 | -0.24377 | 0.01628 | 0.01688 |
| 1.8 | -0.26123 | 0.01941 | 0.01714 |
| 2.0 | -0.25679 | 0.02295 | 0.01716 |
| 2.2 | -0.31172 | 0.02662 | 0.01708 |
| 2.4 | -0.26767 | 0.03141 | 0.01723 |
| 2.65 | -0.35799 | 0.0304 | 0.01702 |
| 2.95 | -0.39018 | 0.03625 | 0.01648 |
| 3.3 | -0.43081 | 0.03904 | 0.01605 |
Measurement comment:
Coordinate system:
(x′,y′,z′), z′ along K+, y′ normal to hadronic plane, x′=y′ x z′