Measurement E151M2558
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0971 | |
| Q2: | 0.0348 GeV2 | |
| W: | 1355.0 GeV | |
| Ebeam: | 1.0539 GeV | |
| ε: | 0.777 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 42.0 | -0.0431 | 0.2609 |
| 0.25 | 42.0 | 0.1409 | 0.2011 |
| 0.25 | 54.0 | 0.0281 | 0.2162 |
| 0.35 | 30.0 | 0.1597 | 0.1983 |
| 0.35 | 42.0 | 0.0069 | 0.2159 |
| 0.35 | 54.0 | -0.5153 | 0.1829 |
| 0.45 | 30.0 | 0.066 | 0.1902 |
| 0.45 | 42.0 | -0.0668 | 0.1794 |
| 0.45 | 54.0 | -0.1376 | 0.1996 |
| 0.45 | 246.0 | -0.3879 | 0.2335 |
| 0.45 | 258.0 | 0.3182 | 0.2279 |
| 0.55 | 42.0 | 0.4441 | 0.1848 |
| 0.55 | 54.0 | 0.1173 | 0.1976 |
| 0.55 | 234.0 | 0.105 | 0.197 |
| 0.55 | 246.0 | 0.0963 | 0.1962 |
| 0.55 | 258.0 | 0.1763 | 0.1605 |
| 0.55 | 270.0 | 0.1059 | 0.2109 |
| 0.65 | 138.0 | 0.0311 | 0.1992 |
| 0.65 | 150.0 | 0.0382 | 0.2278 |
| 0.65 | 222.0 | 0.1406 | 0.191 |
| 0.65 | 234.0 | -0.132 | 0.1624 |
| 0.65 | 246.0 | 0.0093 | 0.13 |
| 0.65 | 258.0 | -0.0764 | 0.1356 |
| 0.65 | 270.0 | 0.0506 | 0.2022 |
| 0.75 | 126.0 | -0.0404 | 0.2492 |
| 0.75 | 138.0 | -0.209 | 0.1857 |
| 0.75 | 150.0 | 0.0124 | 0.1919 |
| 0.75 | 162.0 | -0.2636 | 0.1867 |
| 0.75 | 174.0 | 0.2709 | 0.1947 |
| 0.75 | 186.0 | 0.0532 | 0.2389 |
| 0.75 | 210.0 | 0.1803 | 0.2513 |
| 0.75 | 222.0 | -0.1967 | 0.2013 |
| 0.75 | 234.0 | 0.0866 | 0.1478 |
| 0.75 | 246.0 | 0.1222 | 0.1412 |
| 0.75 | 258.0 | 0.0893 | 0.1309 |
| 0.75 | 270.0 | -0.0116 | 0.1678 |
| 0.85 | 126.0 | 0.3708 | 0.2194 |
| 0.85 | 138.0 | 0.0442 | 0.2565 |
| 0.85 | 162.0 | -0.1206 | 0.2187 |
| 0.85 | 186.0 | -0.1954 | 0.2298 |
| 0.85 | 222.0 | -0.1015 | 0.2223 |
| 0.85 | 234.0 | 0.058 | 0.184 |
| 0.85 | 246.0 | 0.0175 | 0.1416 |
| 0.85 | 258.0 | -0.2267 | 0.1422 |
| 0.85 | 270.0 | 0.0702 | 0.1772 |
| 0.95 | 138.0 | -0.0666 | 0.2047 |
| 0.95 | 162.0 | 0.1904 | 0.2508 |
| 0.95 | 234.0 | -0.1635 | 0.2404 |
| 0.95 | 246.0 | -0.2902 | 0.2247 |
| 0.95 | 258.0 | -0.3108 | 0.2303 |
Experiment comment: