Measurement E151M3481
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.2314 | |
| Q2: | 0.1435 GeV2 | |
| W: | 1475.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.948 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| -0.15 | 30.0 | -0.2391 | 0.2744 |
| -0.05 | 30.0 | 0.1469 | 0.2349 |
| 0.05 | 30.0 | -0.1138 | 0.2663 |
| 0.05 | 54.0 | -0.0194 | 0.2489 |
| 0.05 | 66.0 | -0.2328 | 0.2066 |
| 0.05 | 294.0 | 0.458 | 0.247 |
| 0.05 | 306.0 | -0.156 | 0.229 |
| 0.15 | 18.0 | 0.1086 | 0.226 |
| 0.15 | 30.0 | -0.0365 | 0.252 |
| 0.15 | 54.0 | 0.2218 | 0.1682 |
| 0.15 | 66.0 | -0.1899 | 0.1559 |
| 0.15 | 78.0 | -0.0396 | 0.2569 |
| 0.15 | 282.0 | 0.4133 | 0.2315 |
| 0.15 | 294.0 | -0.0625 | 0.1729 |
| 0.15 | 306.0 | -0.2163 | 0.1756 |
| 0.25 | 54.0 | 0.1526 | 0.1646 |
| 0.25 | 66.0 | 0.0931 | 0.1352 |
| 0.25 | 78.0 | 0.0629 | 0.1609 |
| 0.25 | 282.0 | -0.191 | 0.1372 |
| 0.25 | 294.0 | 0.0187 | 0.1323 |
| 0.25 | 306.0 | -0.1664 | 0.152 |
| 0.35 | 54.0 | -0.0016 | 0.1785 |
| 0.35 | 66.0 | 0.221 | 0.1219 |
| 0.35 | 78.0 | -0.1413 | 0.1375 |
| 0.35 | 102.0 | 0.1405 | 0.2543 |
| 0.35 | 270.0 | 0.2127 | 0.1611 |
| 0.35 | 282.0 | 0.0851 | 0.1217 |
| 0.35 | 294.0 | 0.1398 | 0.1174 |
| 0.35 | 306.0 | 0.2026 | 0.1695 |
| 0.45 | 54.0 | 0.1703 | 0.2088 |
| 0.45 | 66.0 | 0.1885 | 0.138 |
| 0.45 | 78.0 | 0.0255 | 0.1474 |
| 0.45 | 90.0 | -0.0874 | 0.161 |
| 0.45 | 102.0 | 0.1609 | 0.179 |
| 0.45 | 114.0 | -0.0712 | 0.214 |
| 0.45 | 258.0 | -0.1853 | 0.1976 |
| 0.45 | 270.0 | -0.0888 | 0.1507 |
| 0.45 | 282.0 | 0.1538 | 0.1214 |
| 0.45 | 294.0 | 0.1023 | 0.1197 |
| 0.45 | 306.0 | -0.2247 | 0.2651 |
| 0.45 | 318.0 | -0.1643 | 0.3107 |
| 0.55 | 54.0 | -0.0144 | 0.1604 |
| 0.55 | 66.0 | -0.0957 | 0.1747 |
| 0.55 | 78.0 | -0.0386 | 0.1458 |
| 0.55 | 90.0 | 0.1365 | 0.1542 |
| 0.55 | 102.0 | 0.0515 | 0.1304 |
| 0.55 | 114.0 | 0.04 | 0.1109 |
| 0.55 | 126.0 | -0.1744 | 0.1817 |
| 0.55 | 234.0 | -0.3221 | 0.204 |
| 0.55 | 246.0 | 0.371 | 0.1816 |
| 0.55 | 258.0 | -0.0272 | 0.1592 |
| 0.55 | 270.0 | 0.2552 | 0.1438 |
| 0.55 | 282.0 | -0.1038 | 0.1218 |
| 0.55 | 294.0 | 0.1155 | 0.1927 |
| 0.55 | 306.0 | 0.0015 | 0.1568 |
| 0.65 | 54.0 | 0.0204 | 0.1881 |
| 0.65 | 66.0 | -0.1473 | 0.2246 |
| 0.65 | 78.0 | -0.0267 | 0.1668 |
| 0.65 | 90.0 | -0.2894 | 0.1088 |
| 0.65 | 102.0 | 0.1299 | 0.1011 |
| 0.65 | 114.0 | -0.1353 | 0.1112 |
| 0.65 | 126.0 | 0.0835 | 0.1304 |
| 0.65 | 138.0 | -0.414 | 0.1492 |
| 0.65 | 198.0 | 0.3425 | 0.2257 |
| 0.65 | 210.0 | -0.031 | 0.2062 |
| 0.65 | 222.0 | 0.1641 | 0.1698 |
| 0.65 | 234.0 | -0.0428 | 0.1265 |
| 0.65 | 246.0 | 0.0756 | 0.1236 |
| 0.65 | 258.0 | -0.0439 | 0.1381 |
| 0.65 | 270.0 | -0.1709 | 0.1353 |
| 0.65 | 282.0 | -0.0125 | 0.1879 |
| 0.65 | 294.0 | -0.1517 | 0.1652 |
| 0.65 | 306.0 | 0.0756 | 0.1262 |
| 0.75 | 66.0 | 0.0025 | 0.186 |
| 0.75 | 78.0 | -0.1049 | 0.1958 |
| 0.75 | 90.0 | 0.1312 | 0.1027 |
| 0.75 | 102.0 | -0.0414 | 0.0924 |
| 0.75 | 114.0 | 0.1795 | 0.1014 |
| 0.75 | 126.0 | 0.0634 | 0.1195 |
| 0.75 | 138.0 | 0.1161 | 0.1401 |
| 0.75 | 150.0 | 0.0779 | 0.1861 |
| 0.75 | 162.0 | 0.156 | 0.2257 |
| 0.75 | 174.0 | 0.0884 | 0.2369 |
| 0.75 | 186.0 | -0.3718 | 0.245 |
| 0.75 | 198.0 | 0.0014 | 0.1711 |
| 0.75 | 210.0 | 0.2054 | 0.1347 |
| 0.75 | 222.0 | -0.1084 | 0.1138 |
| 0.75 | 234.0 | -0.0445 | 0.1183 |
| 0.75 | 246.0 | -0.0492 | 0.1131 |
| 0.75 | 258.0 | -0.225 | 0.1108 |
| 0.75 | 270.0 | -0.129 | 0.1234 |
| 0.75 | 282.0 | 0.3638 | 0.1541 |
| 0.75 | 294.0 | -0.177 | 0.1592 |
| 0.85 | 66.0 | 0.0544 | 0.1533 |
| 0.85 | 78.0 | 0.1531 | 0.109 |
| 0.85 | 90.0 | 0.0538 | 0.1499 |
| 0.85 | 102.0 | 0.1545 | 0.1166 |
| 0.85 | 114.0 | 0.0141 | 0.1055 |
| 0.85 | 126.0 | -0.1466 | 0.1146 |
| 0.85 | 138.0 | 0.1793 | 0.1397 |
| 0.85 | 150.0 | -0.2551 | 0.1726 |
| 0.85 | 162.0 | 0.1814 | 0.235 |
| 0.85 | 174.0 | 0.3922 | 0.249 |
| 0.85 | 186.0 | 0.1734 | 0.1963 |
| 0.85 | 198.0 | 0.0437 | 0.1526 |
| 0.85 | 210.0 | -0.2591 | 0.1301 |
| 0.85 | 222.0 | 0.0134 | 0.1039 |
| 0.85 | 234.0 | -0.1869 | 0.098 |
| 0.85 | 246.0 | -0.0979 | 0.0936 |
| 0.85 | 258.0 | -0.1316 | 0.1009 |
| 0.85 | 270.0 | -0.1616 | 0.1239 |
| 0.85 | 282.0 | 0.2146 | 0.1422 |
| 0.85 | 294.0 | -0.0321 | 0.1778 |
| 0.95 | 66.0 | 0.2694 | 0.2373 |
| 0.95 | 78.0 | -0.3163 | 0.1373 |
| 0.95 | 90.0 | 0.0799 | 0.1497 |
| 0.95 | 102.0 | 0.1838 | 0.2164 |
| 0.95 | 114.0 | -0.3868 | 0.2268 |
| 0.95 | 126.0 | -0.1086 | 0.2005 |
| 0.95 | 138.0 | -0.0078 | 0.202 |
| 0.95 | 150.0 | 0.0573 | 0.2446 |
| 0.95 | 162.0 | 0.1414 | 0.2802 |
| 0.95 | 174.0 | -0.1693 | 0.2582 |
| 0.95 | 186.0 | -0.1464 | 0.2396 |
| 0.95 | 198.0 | 0.4871 | 0.18 |
| 0.95 | 210.0 | 0.0439 | 0.1666 |
| 0.95 | 222.0 | 0.0606 | 0.1501 |
| 0.95 | 234.0 | -0.1557 | 0.1314 |
| 0.95 | 246.0 | 0.1278 | 0.1132 |
| 0.95 | 258.0 | 0.0303 | 0.1127 |
| 0.95 | 270.0 | -0.0406 | 0.1138 |
| 0.95 | 282.0 | -0.0284 | 0.1078 |
| 0.95 | 294.0 | -0.4472 | 0.1356 |
Experiment comment: