Measurement E151M3127
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0227 | |
| Q2: | 0.0291 GeV2 | |
| W: | 1655.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.7891 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.35 | 78.0 | 0.255 | 0.228 |
| 0.35 | 282.0 | -0.2346 | 0.2691 |
| 0.45 | 18.0 | -0.0432 | 0.2828 |
| 0.45 | 258.0 | -0.2874 | 0.221 |
| 0.45 | 270.0 | -0.4416 | 0.2195 |
| 0.45 | 282.0 | -0.0484 | 0.2748 |
| 0.55 | 78.0 | 0.2896 | 0.255 |
| 0.55 | 126.0 | -0.1895 | 0.2232 |
| 0.55 | 210.0 | 0.4773 | 0.2318 |
| 0.55 | 258.0 | -0.1907 | 0.2631 |
| 0.55 | 270.0 | 0.1282 | 0.2306 |
| 0.55 | 282.0 | 0.1921 | 0.2633 |
| 0.65 | 126.0 | -0.4355 | 0.2319 |
| 0.65 | 138.0 | -0.0492 | 0.2543 |
| 0.65 | 150.0 | -0.634 | 0.2199 |
| 0.65 | 210.0 | 0.133 | 0.2613 |
| 0.65 | 222.0 | 0.2319 | 0.2565 |
| 0.65 | 294.0 | 0.3987 | 0.2444 |
| 0.75 | 66.0 | 0.6252 | 0.1927 |
| 0.75 | 126.0 | 0.021 | 0.264 |
| 0.75 | 210.0 | -0.2658 | 0.2568 |
| 0.75 | 222.0 | 0.028 | 0.233 |
| 0.75 | 234.0 | 0.1366 | 0.237 |
| 0.75 | 258.0 | -0.1814 | 0.2456 |
| 0.75 | 270.0 | -0.0674 | 0.2009 |
| 0.75 | 282.0 | 0.27 | 0.2417 |
| 0.85 | 114.0 | 0.3978 | 0.2069 |
| 0.85 | 126.0 | -0.1332 | 0.2187 |
| 0.85 | 198.0 | 0.0755 | 0.2845 |
| 0.85 | 210.0 | -0.2658 | 0.205 |
| 0.85 | 222.0 | 0.1365 | 0.2436 |
| 0.85 | 234.0 | 0.1528 | 0.2596 |
| 0.85 | 258.0 | 0.2931 | 0.2607 |
Experiment comment: