Measurement E209M19
| 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
|
|
| cos(θKc.m.) | P0y′ | uncertainty | syst. uncert. |
|---|---|---|---|
| -0.96 | 0.5007 | 0.7926 | 0.1229 |
| -0.88 | -0.141 | 0.2708 | 0.0185 |
| -0.8 | -0.5494 | 0.2136 | 0.1468 |
| -0.72 | -0.2376 | 0.2081 | 0.1292 |
| -0.64 | 0.2629 | 0.2104 | 0.0784 |
| -0.56 | 0.1743 | 0.1967 | 0.0416 |
| -0.48 | -0.1833 | 0.1918 | 0.0754 |
| -0.4 | 0.3751 | 0.1657 | 0.0644 |
| -0.32 | -0.0453 | 0.1601 | 0.0864 |
| -0.24 | 0.087 | 0.1558 | 0.0479 |
| -0.16 | 0.1912 | 0.1465 | 0.0936 |
| -0.08 | 0.4732 | 0.1464 | 0.1347 |
| 0.0 | 0.3397 | 0.1487 | 0.1148 |
| 0.08 | 0.3137 | 0.1504 | 0.0873 |
| 0.16 | 0.649 | 0.1498 | 0.1258 |
| 0.24 | 0.4774 | 0.1561 | 0.1067 |
| 0.32 | 0.4531 | 0.1571 | 0.1518 |
| 0.4 | 0.1522 | 0.1654 | 0.0922 |
| 0.48 | 0.6888 | 0.16 | 0.0204 |
| 0.56 | 0.5693 | 0.1627 | 0.0789 |
| 0.64 | 0.4882 | 0.19 | 0.1554 |
| 0.72 | 0.4087 | 0.1825 | 0.0642 |
| 0.8 | -0.1365 | 0.2247 | 0.1492 |
| 0.88 | -0.1396 | 0.3329 | 0.1784 |
| 0.96 | 0.3404 | 0.6085 | 0.385 |