Measurement E151M2977
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1633 | |
| Q2: | 0.0496 GeV2 | |
| W: | 1355.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.9448 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 30.0 | -0.2378 | 0.2221 |
| 0.15 | 42.0 | 0.1085 | 0.2832 |
| 0.15 | 66.0 | -0.1052 | 0.2448 |
| 0.15 | 306.0 | 0.5116 | 0.2209 |
| 0.25 | 30.0 | 0.1081 | 0.2704 |
| 0.25 | 66.0 | 0.0105 | 0.1893 |
| 0.25 | 78.0 | 0.1817 | 0.2304 |
| 0.25 | 282.0 | -0.6538 | 0.218 |
| 0.25 | 294.0 | 0.0478 | 0.1776 |
| 0.25 | 306.0 | 0.2687 | 0.189 |
| 0.25 | 330.0 | -0.1427 | 0.2432 |
| 0.35 | 30.0 | 0.3324 | 0.2446 |
| 0.35 | 54.0 | -0.055 | 0.2398 |
| 0.35 | 66.0 | 0.0868 | 0.1479 |
| 0.35 | 78.0 | 0.1779 | 0.1373 |
| 0.35 | 90.0 | 0.0287 | 0.2155 |
| 0.35 | 282.0 | -0.0649 | 0.1731 |
| 0.35 | 294.0 | -0.3475 | 0.1425 |
| 0.35 | 306.0 | 0.1916 | 0.1649 |
| 0.35 | 318.0 | 0.2944 | 0.2359 |
| 0.45 | 66.0 | -0.2084 | 0.1479 |
| 0.45 | 78.0 | -0.1104 | 0.1253 |
| 0.45 | 90.0 | 0.044 | 0.1688 |
| 0.45 | 270.0 | -0.0759 | 0.181 |
| 0.45 | 282.0 | 0.0165 | 0.146 |
| 0.45 | 294.0 | -0.13 | 0.1337 |
| 0.45 | 306.0 | -0.0083 | 0.1819 |
| 0.55 | 66.0 | -0.0226 | 0.191 |
| 0.55 | 78.0 | -0.0041 | 0.1315 |
| 0.55 | 90.0 | -0.2898 | 0.1314 |
| 0.55 | 102.0 | 0.0616 | 0.2074 |
| 0.55 | 114.0 | -0.3209 | 0.2064 |
| 0.55 | 126.0 | 0.2938 | 0.2314 |
| 0.55 | 246.0 | -0.2192 | 0.2021 |
| 0.55 | 258.0 | -0.1327 | 0.2225 |
| 0.55 | 270.0 | -0.1075 | 0.1682 |
| 0.55 | 282.0 | 0.1299 | 0.1424 |
| 0.55 | 294.0 | -0.0945 | 0.1549 |
| 0.65 | 66.0 | 0.1478 | 0.2076 |
| 0.65 | 78.0 | 0.1029 | 0.168 |
| 0.65 | 90.0 | 0.1508 | 0.1836 |
| 0.65 | 102.0 | 0.0784 | 0.1695 |
| 0.65 | 114.0 | 0.0421 | 0.1621 |
| 0.65 | 126.0 | -0.3641 | 0.1508 |
| 0.65 | 138.0 | 0.0645 | 0.1911 |
| 0.65 | 150.0 | -0.1214 | 0.2684 |
| 0.65 | 222.0 | -0.0717 | 0.1745 |
| 0.65 | 234.0 | -0.0958 | 0.1715 |
| 0.65 | 246.0 | 0.111 | 0.1615 |
| 0.65 | 258.0 | 0.0406 | 0.1431 |
| 0.65 | 270.0 | -0.0946 | 0.1482 |
| 0.65 | 282.0 | 0.1493 | 0.1708 |
| 0.75 | 78.0 | 0.0495 | 0.1916 |
| 0.75 | 90.0 | -0.2607 | 0.2107 |
| 0.75 | 102.0 | -0.0952 | 0.1453 |
| 0.75 | 114.0 | -0.1064 | 0.1365 |
| 0.75 | 126.0 | 0.2541 | 0.1351 |
| 0.75 | 138.0 | 0.0046 | 0.1459 |
| 0.75 | 150.0 | 0.2166 | 0.1708 |
| 0.75 | 162.0 | -0.1808 | 0.2194 |
| 0.75 | 174.0 | 0.2628 | 0.247 |
| 0.75 | 210.0 | 0.0762 | 0.2016 |
| 0.75 | 222.0 | -0.1725 | 0.1545 |
| 0.75 | 234.0 | 0.0489 | 0.1404 |
| 0.75 | 246.0 | -0.257 | 0.1181 |
| 0.75 | 258.0 | -0.021 | 0.1424 |
| 0.75 | 270.0 | 0.2496 | 0.1629 |
| 0.75 | 282.0 | 0.249 | 0.2708 |
| 0.85 | 102.0 | 0.303 | 0.193 |
| 0.85 | 114.0 | 0.1408 | 0.1442 |
| 0.85 | 126.0 | 0.2004 | 0.1476 |
| 0.85 | 138.0 | -0.2276 | 0.1401 |
| 0.85 | 150.0 | 0.2282 | 0.1855 |
| 0.85 | 162.0 | -0.1227 | 0.1864 |
| 0.85 | 174.0 | -0.2616 | 0.2308 |
| 0.85 | 186.0 | -0.018 | 0.2473 |
| 0.85 | 198.0 | 0.2392 | 0.2022 |
| 0.85 | 210.0 | 0.1648 | 0.1852 |
| 0.85 | 222.0 | -0.1268 | 0.1577 |
| 0.85 | 234.0 | -0.0311 | 0.126 |
| 0.85 | 246.0 | -0.064 | 0.1311 |
| 0.85 | 258.0 | -0.0323 | 0.1252 |
| 0.85 | 270.0 | -0.2078 | 0.1512 |
| 0.95 | 138.0 | 0.2188 | 0.2592 |
| 0.95 | 198.0 | -0.343 | 0.2293 |
| 0.95 | 210.0 | 0.1359 | 0.2484 |
| 0.95 | 222.0 | -0.2571 | 0.1807 |
| 0.95 | 234.0 | 0.2292 | 0.1665 |
| 0.95 | 246.0 | 0.1938 | 0.1945 |
| 0.95 | 258.0 | 0.3703 | 0.2158 |
Experiment comment: