Measurement E151M3497
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.3361 | |
| Q2: | 0.2915 GeV2 | |
| W: | 1505.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.9198 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.05 | 54.0 | 0.2855 | 0.229 |
| 0.05 | 66.0 | 0.2212 | 0.241 |
| 0.05 | 306.0 | 0.6225 | 0.207 |
| 0.15 | 54.0 | 0.1413 | 0.2325 |
| 0.15 | 66.0 | -0.1988 | 0.1946 |
| 0.15 | 282.0 | 0.2519 | 0.2351 |
| 0.15 | 294.0 | -0.0112 | 0.2226 |
| 0.15 | 306.0 | -0.6556 | 0.2084 |
| 0.25 | 54.0 | 0.2818 | 0.2537 |
| 0.25 | 66.0 | -0.2019 | 0.2023 |
| 0.25 | 282.0 | -0.3152 | 0.2101 |
| 0.25 | 294.0 | 0.2218 | 0.1957 |
| 0.25 | 306.0 | -0.0641 | 0.2045 |
| 0.35 | 66.0 | 0.209 | 0.2122 |
| 0.35 | 270.0 | -0.2909 | 0.2155 |
| 0.35 | 282.0 | -0.1243 | 0.1757 |
| 0.35 | 294.0 | -0.4195 | 0.1738 |
| 0.45 | 78.0 | -0.3481 | 0.2644 |
| 0.45 | 90.0 | 0.0676 | 0.2587 |
| 0.45 | 102.0 | -0.0332 | 0.2097 |
| 0.45 | 114.0 | 0.0177 | 0.2481 |
| 0.45 | 270.0 | -0.3604 | 0.2571 |
| 0.45 | 282.0 | 0.1631 | 0.2223 |
| 0.45 | 294.0 | -0.0276 | 0.2391 |
| 0.45 | 306.0 | -0.0535 | 0.2409 |
| 0.55 | 54.0 | -0.2048 | 0.2725 |
| 0.55 | 78.0 | 0.0377 | 0.2192 |
| 0.55 | 90.0 | 0.1335 | 0.171 |
| 0.55 | 102.0 | -0.0297 | 0.1753 |
| 0.55 | 114.0 | 0.2565 | 0.1614 |
| 0.55 | 126.0 | -0.1442 | 0.2689 |
| 0.55 | 258.0 | -0.3993 | 0.2241 |
| 0.55 | 270.0 | 0.0663 | 0.2303 |
| 0.55 | 282.0 | -0.9819 | 0.0984 |
| 0.55 | 294.0 | 0.2562 | 0.2709 |
| 0.55 | 306.0 | 0.1734 | 0.2108 |
| 0.65 | 78.0 | 0.2052 | 0.2182 |
| 0.65 | 90.0 | 0.4587 | 0.1424 |
| 0.65 | 102.0 | -0.0432 | 0.1712 |
| 0.65 | 114.0 | 0.088 | 0.1637 |
| 0.65 | 126.0 | 0.2846 | 0.1817 |
| 0.65 | 234.0 | -0.2293 | 0.2436 |
| 0.65 | 246.0 | -0.2243 | 0.1745 |
| 0.65 | 258.0 | -0.279 | 0.184 |
| 0.65 | 270.0 | -0.37 | 0.1998 |
| 0.65 | 294.0 | 0.0287 | 0.2573 |
| 0.65 | 306.0 | -0.1533 | 0.235 |
| 0.75 | 54.0 | -0.0356 | 0.23 |
| 0.75 | 66.0 | -0.0013 | 0.2157 |
| 0.75 | 78.0 | 0.0836 | 0.2396 |
| 0.75 | 90.0 | 0.0327 | 0.1387 |
| 0.75 | 102.0 | -0.1864 | 0.1519 |
| 0.75 | 114.0 | -0.1178 | 0.1505 |
| 0.75 | 126.0 | 0.1384 | 0.202 |
| 0.75 | 138.0 | 0.0897 | 0.2371 |
| 0.75 | 198.0 | -0.1018 | 0.2275 |
| 0.75 | 210.0 | -0.1024 | 0.1892 |
| 0.75 | 222.0 | -0.2578 | 0.2303 |
| 0.75 | 234.0 | 0.1914 | 0.1585 |
| 0.75 | 246.0 | -0.1055 | 0.1696 |
| 0.75 | 258.0 | 0.3404 | 0.1765 |
| 0.75 | 270.0 | 0.1364 | 0.1774 |
| 0.75 | 282.0 | 0.3465 | 0.2408 |
| 0.85 | 54.0 | -0.0905 | 0.2037 |
| 0.85 | 66.0 | -0.2392 | 0.1501 |
| 0.85 | 78.0 | 0.4143 | 0.1999 |
| 0.85 | 90.0 | -0.1248 | 0.2619 |
| 0.85 | 102.0 | 0.0035 | 0.1526 |
| 0.85 | 114.0 | 0.4974 | 0.1384 |
| 0.85 | 126.0 | -0.2692 | 0.1843 |
| 0.85 | 150.0 | -0.0959 | 0.2783 |
| 0.85 | 186.0 | 0.0037 | 0.2553 |
| 0.85 | 198.0 | -0.2542 | 0.2153 |
| 0.85 | 210.0 | 0.1849 | 0.1734 |
| 0.85 | 222.0 | -0.2871 | 0.1734 |
| 0.85 | 234.0 | 0.0808 | 0.1522 |
| 0.85 | 246.0 | -0.17 | 0.1414 |
| 0.85 | 258.0 | 0.2659 | 0.137 |
| 0.85 | 270.0 | -0.1233 | 0.1363 |
| 0.85 | 282.0 | -0.0098 | 0.1502 |
| 0.85 | 294.0 | -0.2558 | 0.164 |
| 0.85 | 306.0 | -0.5294 | 0.224 |
| 0.95 | 54.0 | 0.144 | 0.2593 |
| 0.95 | 66.0 | 0.2901 | 0.2091 |
| 0.95 | 78.0 | 0.0012 | 0.2327 |
| 0.95 | 114.0 | -0.1364 | 0.2198 |
| 0.95 | 198.0 | 0.0554 | 0.2355 |
| 0.95 | 210.0 | -0.6549 | 0.2388 |
| 0.95 | 222.0 | -0.1723 | 0.2062 |
| 0.95 | 234.0 | -0.0235 | 0.1896 |
| 0.95 | 246.0 | -0.1059 | 0.2301 |
| 0.95 | 258.0 | 0.1137 | 0.1889 |
| 0.95 | 270.0 | -0.489 | 0.1379 |
| 0.95 | 282.0 | -0.0847 | 0.1507 |
| 0.95 | 294.0 | -0.0329 | 0.1549 |
| 0.95 | 306.0 | -0.051 | 0.1544 |
| 0.95 | 318.0 | -0.3057 | 0.1766 |
| 0.95 | 330.0 | -0.1424 | 0.2526 |
Experiment comment: