Measurement E151M3141
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0234 | |
| Q2: | 0.0348 GeV2 | |
| W: | 1685.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.7592 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.45 | 78.0 | -0.1364 | 0.2385 |
| 0.45 | 270.0 | 0.691 | 0.2105 |
| 0.45 | 282.0 | -0.1994 | 0.2279 |
| 0.55 | 102.0 | -0.303 | 0.2588 |
| 0.55 | 258.0 | -0.2699 | 0.2763 |
| 0.55 | 270.0 | 0.2359 | 0.2765 |
| 0.55 | 318.0 | -0.0253 | 0.2747 |
| 0.65 | 126.0 | -0.0037 | 0.2245 |
| 0.65 | 198.0 | -0.073 | 0.2661 |
| 0.65 | 210.0 | 0.1189 | 0.2486 |
| 0.65 | 282.0 | 0.0994 | 0.2441 |
| 0.65 | 294.0 | -0.116 | 0.2871 |
| 0.75 | 66.0 | -0.2316 | 0.212 |
| 0.75 | 78.0 | 0.1072 | 0.2696 |
| 0.75 | 198.0 | 0.228 | 0.2201 |
| 0.75 | 222.0 | 0.0091 | 0.2297 |
| 0.75 | 258.0 | -0.0683 | 0.2595 |
| 0.75 | 270.0 | 0.2727 | 0.1831 |
| 0.75 | 282.0 | 0.3341 | 0.1839 |
| 0.85 | 114.0 | 0.5465 | 0.202 |
| 0.85 | 126.0 | -0.0412 | 0.2465 |
| 0.85 | 138.0 | -0.3987 | 0.2326 |
| 0.85 | 198.0 | 0.2935 | 0.2218 |
| 0.85 | 210.0 | -0.021 | 0.2297 |
| 0.85 | 222.0 | -0.2236 | 0.2241 |
| 0.85 | 270.0 | -0.0906 | 0.2623 |
Experiment comment: