Measurement E151M3221
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1938 | |
| Q2: | 0.0593 GeV2 | |
| W: | 1355.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9565 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 54.0 | 0.0369 | 0.2588 |
| 0.25 | 66.0 | 0.2025 | 0.1372 |
| 0.25 | 78.0 | 0.0347 | 0.161 |
| 0.25 | 294.0 | -0.164 | 0.1389 |
| 0.25 | 306.0 | 0.1177 | 0.1578 |
| 0.35 | 66.0 | -0.18 | 0.1372 |
| 0.35 | 78.0 | -0.109 | 0.1343 |
| 0.35 | 282.0 | 0.3407 | 0.1425 |
| 0.35 | 294.0 | -0.0112 | 0.1242 |
| 0.35 | 306.0 | 0.0306 | 0.1507 |
| 0.45 | 66.0 | -0.0009 | 0.1273 |
| 0.45 | 78.0 | 0.0115 | 0.1118 |
| 0.45 | 90.0 | -0.0403 | 0.1468 |
| 0.45 | 270.0 | -0.0705 | 0.1689 |
| 0.45 | 282.0 | 0.041 | 0.1476 |
| 0.45 | 294.0 | -0.0537 | 0.1123 |
| 0.45 | 306.0 | -0.1483 | 0.1699 |
| 0.55 | 66.0 | 0.2158 | 0.1347 |
| 0.55 | 78.0 | -0.0768 | 0.1172 |
| 0.55 | 90.0 | -0.1645 | 0.1394 |
| 0.55 | 102.0 | -0.2286 | 0.2197 |
| 0.55 | 114.0 | -0.2403 | 0.2312 |
| 0.55 | 246.0 | -0.4802 | 0.2276 |
| 0.55 | 258.0 | 0.115 | 0.1689 |
| 0.55 | 270.0 | 0.216 | 0.1501 |
| 0.55 | 282.0 | -0.1342 | 0.1316 |
| 0.55 | 294.0 | 0.0171 | 0.1392 |
| 0.65 | 66.0 | -0.0148 | 0.1742 |
| 0.65 | 78.0 | 0.2545 | 0.14 |
| 0.65 | 90.0 | 0.4201 | 0.2173 |
| 0.65 | 102.0 | 0.1519 | 0.1369 |
| 0.65 | 114.0 | 0.0441 | 0.1203 |
| 0.65 | 126.0 | -0.0253 | 0.1374 |
| 0.65 | 138.0 | 0.2722 | 0.2348 |
| 0.65 | 222.0 | -0.3137 | 0.2356 |
| 0.65 | 234.0 | 0.0356 | 0.1488 |
| 0.65 | 246.0 | -0.0526 | 0.1281 |
| 0.65 | 258.0 | 0.212 | 0.1354 |
| 0.65 | 270.0 | -0.0153 | 0.1409 |
| 0.75 | 90.0 | -0.2344 | 0.2358 |
| 0.75 | 102.0 | 0.6086 | 0.1539 |
| 0.75 | 114.0 | 0.1178 | 0.152 |
| 0.75 | 126.0 | 0.0653 | 0.149 |
| 0.75 | 138.0 | -0.0574 | 0.1836 |
| 0.75 | 150.0 | 0.1412 | 0.2219 |
| 0.75 | 198.0 | 0.4137 | 0.2384 |
| 0.75 | 222.0 | -0.1446 | 0.2279 |
| 0.75 | 234.0 | -0.3284 | 0.1788 |
| 0.75 | 246.0 | 0.1158 | 0.1504 |
| 0.75 | 258.0 | 0.0629 | 0.1636 |
| 0.75 | 270.0 | 0.0918 | 0.1796 |
| 0.85 | 102.0 | 0.416 | 0.219 |
| 0.85 | 114.0 | 0.0227 | 0.186 |
| 0.85 | 126.0 | 0.1231 | 0.1613 |
| 0.85 | 138.0 | -0.0153 | 0.173 |
| 0.85 | 150.0 | 0.2221 | 0.2318 |
| 0.85 | 162.0 | -0.0768 | 0.2655 |
| 0.85 | 198.0 | 0.0986 | 0.2624 |
| 0.85 | 210.0 | -0.3432 | 0.2195 |
| 0.85 | 222.0 | -0.0379 | 0.1805 |
| 0.85 | 234.0 | 0.2394 | 0.1665 |
| 0.85 | 246.0 | -0.1078 | 0.141 |
| 0.85 | 258.0 | -0.0704 | 0.1354 |
| 0.85 | 270.0 | -0.4838 | 0.1469 |
| 0.95 | 126.0 | 0.2016 | 0.255 |
| 0.95 | 210.0 | -0.3174 | 0.2418 |
| 0.95 | 222.0 | -0.1452 | 0.2442 |
| 0.95 | 234.0 | -0.1208 | 0.2018 |
| 0.95 | 246.0 | 0.0715 | 0.2366 |
| 0.95 | 258.0 | 0.4462 | 0.224 |
| 0.65 | 282.0 | -0.1858 | 0.2285 |
| 0.75 | 90.0 | -0.1153 | 0.2629 |
| 0.75 | 102.0 | -0.0516 | 0.1651 |
| 0.75 | 114.0 | -0.0469 | 0.1423 |
| 0.75 | 126.0 | 0.1968 | 0.1621 |
| 0.75 | 138.0 | -0.215 | 0.1714 |
| 0.75 | 150.0 | -0.1349 | 0.2236 |
| 0.75 | 210.0 | 0.3177 | 0.2152 |
| 0.75 | 222.0 | -0.258 | 0.1677 |
| 0.75 | 234.0 | -0.058 | 0.172 |
| 0.75 | 246.0 | 0.2187 | 0.1412 |
| 0.75 | 258.0 | 0.0919 | 0.153 |
| 0.75 | 270.0 | -0.2793 | 0.2044 |
| 0.85 | 102.0 | -0.1606 | 0.2209 |
| 0.85 | 114.0 | -0.238 | 0.1533 |
| 0.85 | 126.0 | -0.1335 | 0.1615 |
| 0.85 | 138.0 | -0.0629 | 0.1945 |
| 0.85 | 150.0 | -0.2461 | 0.1831 |
| 0.85 | 162.0 | -0.2936 | 0.2385 |
| 0.85 | 210.0 | -0.34 | 0.1948 |
| 0.85 | 222.0 | -0.0885 | 0.1628 |
| 0.85 | 234.0 | -0.0563 | 0.1516 |
| 0.85 | 246.0 | 0.0226 | 0.1422 |
| 0.85 | 258.0 | 0.4422 | 0.144 |
| 0.85 | 270.0 | 0.2472 | 0.1499 |
| 0.95 | 138.0 | 0.0725 | 0.2498 |
| 0.95 | 198.0 | 0.3446 | 0.2356 |
| 0.95 | 210.0 | -0.8068 | 0.1674 |
| 0.95 | 222.0 | -0.2278 | 0.2092 |
| 0.95 | 234.0 | -0.1503 | 0.2139 |
| 0.95 | 246.0 | 0.0242 | 0.1991 |
| 0.95 | 258.0 | -0.2032 | 0.2134 |
Experiment comment: