Measurement E151M2991
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1178 | |
| Q2: | 0.0415 GeV2 | |
| W: | 1385.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.9377 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 30.0 | -0.0154 | 0.2624 |
| 0.25 | 30.0 | 0.0864 | 0.2583 |
| 0.25 | 42.0 | 0.3291 | 0.2636 |
| 0.25 | 54.0 | -0.3528 | 0.2535 |
| 0.25 | 66.0 | 0.0724 | 0.238 |
| 0.25 | 78.0 | -0.0953 | 0.2199 |
| 0.25 | 282.0 | 0.0766 | 0.2569 |
| 0.25 | 294.0 | -0.2675 | 0.1922 |
| 0.25 | 306.0 | 0.2818 | 0.2506 |
| 0.35 | 30.0 | 0.1154 | 0.2634 |
| 0.35 | 54.0 | 0.1226 | 0.2358 |
| 0.35 | 66.0 | -0.0855 | 0.1483 |
| 0.35 | 78.0 | 0.0909 | 0.146 |
| 0.35 | 90.0 | 0.0063 | 0.2163 |
| 0.35 | 270.0 | -0.1294 | 0.2904 |
| 0.35 | 282.0 | 0.0021 | 0.1645 |
| 0.35 | 294.0 | -0.001 | 0.1654 |
| 0.35 | 306.0 | 0.2658 | 0.2141 |
| 0.45 | 66.0 | -0.2087 | 0.1401 |
| 0.45 | 78.0 | -0.2614 | 0.1168 |
| 0.45 | 90.0 | 0.1641 | 0.1471 |
| 0.45 | 102.0 | -0.0519 | 0.2382 |
| 0.45 | 270.0 | -0.2103 | 0.1699 |
| 0.45 | 282.0 | 0.0357 | 0.1305 |
| 0.45 | 294.0 | -0.0849 | 0.1448 |
| 0.45 | 306.0 | 0.567 | 0.1434 |
| 0.55 | 66.0 | -0.1638 | 0.1929 |
| 0.55 | 78.0 | 0.1329 | 0.1237 |
| 0.55 | 90.0 | -0.0778 | 0.1595 |
| 0.55 | 102.0 | 0.3497 | 0.1962 |
| 0.55 | 114.0 | -0.1045 | 0.2089 |
| 0.55 | 126.0 | -0.0569 | 0.2534 |
| 0.55 | 234.0 | -0.4067 | 0.2452 |
| 0.55 | 246.0 | 0.0714 | 0.2299 |
| 0.55 | 258.0 | 0.5576 | 0.1774 |
| 0.55 | 270.0 | -0.0881 | 0.1726 |
| 0.55 | 282.0 | -0.1876 | 0.1359 |
| 0.55 | 294.0 | 0.1213 | 0.1658 |
| 0.55 | 306.0 | -0.0496 | 0.251 |
| 0.65 | 66.0 | -0.4965 | 0.1559 |
| 0.65 | 78.0 | -0.0751 | 0.1664 |
| 0.65 | 90.0 | -0.1323 | 0.1796 |
| 0.65 | 102.0 | 0.2016 | 0.166 |
| 0.65 | 114.0 | -0.0875 | 0.1416 |
| 0.65 | 126.0 | 0.0325 | 0.1624 |
| 0.65 | 138.0 | -0.1413 | 0.1689 |
| 0.65 | 150.0 | 0.2004 | 0.2661 |
| 0.65 | 162.0 | -0.3365 | 0.2639 |
| 0.65 | 198.0 | 0.3117 | 0.2543 |
| 0.65 | 210.0 | -0.0426 | 0.2055 |
| 0.65 | 222.0 | -0.2003 | 0.1621 |
| 0.65 | 234.0 | 0.1919 | 0.1625 |
| 0.65 | 246.0 | -0.134 | 0.1427 |
| 0.65 | 258.0 | 0.0023 | 0.1507 |
| 0.65 | 270.0 | -0.1541 | 0.1794 |
| 0.65 | 282.0 | 0.1308 | 0.1858 |
| 0.65 | 294.0 | -0.4053 | 0.2082 |
| 0.75 | 78.0 | -0.0296 | 0.2018 |
| 0.75 | 90.0 | 0.0276 | 0.2697 |
| 0.75 | 102.0 | 0.2388 | 0.1747 |
| 0.75 | 114.0 | -0.0419 | 0.1582 |
| 0.75 | 126.0 | 0.0463 | 0.1377 |
| 0.75 | 138.0 | -0.1467 | 0.1386 |
| 0.75 | 150.0 | 0.1029 | 0.185 |
| 0.75 | 162.0 | -0.1449 | 0.2517 |
| 0.75 | 198.0 | 0.3235 | 0.177 |
| 0.75 | 210.0 | 0.0758 | 0.1737 |
| 0.75 | 222.0 | -0.0645 | 0.1453 |
| 0.75 | 234.0 | 0.1069 | 0.1279 |
| 0.75 | 246.0 | 0.0752 | 0.1498 |
| 0.75 | 258.0 | -0.099 | 0.1746 |
| 0.75 | 270.0 | 0.3478 | 0.193 |
| 0.75 | 282.0 | -0.2201 | 0.2661 |
| 0.85 | 102.0 | -0.4071 | 0.2337 |
| 0.85 | 114.0 | -0.0902 | 0.2209 |
| 0.85 | 126.0 | 0.1076 | 0.1692 |
| 0.85 | 138.0 | 0.2404 | 0.1856 |
| 0.85 | 150.0 | -0.2855 | 0.2039 |
| 0.85 | 162.0 | 0.2843 | 0.2545 |
| 0.85 | 174.0 | -0.0095 | 0.2933 |
| 0.85 | 198.0 | -0.3338 | 0.2393 |
| 0.85 | 210.0 | -0.184 | 0.1926 |
| 0.85 | 222.0 | -0.1304 | 0.1508 |
| 0.85 | 234.0 | -0.0767 | 0.1396 |
| 0.85 | 246.0 | 0.0676 | 0.1363 |
| 0.85 | 258.0 | -0.501 | 0.1347 |
| 0.85 | 270.0 | 0.2018 | 0.205 |
| 0.95 | 222.0 | 0.1021 | 0.2196 |
| 0.95 | 234.0 | -0.283 | 0.2023 |
| 0.95 | 246.0 | 0.1015 | 0.2668 |
Experiment comment: