Measurement E151M3265
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1916 | |
| Q2: | 0.101 GeV2 | |
| W: | 1445.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9227 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 66.0 | 0.3891 | 0.1956 |
| 0.25 | 78.0 | 0.1367 | 0.244 |
| 0.25 | 294.0 | -0.1125 | 0.1551 |
| 0.35 | 66.0 | -0.12 | 0.2252 |
| 0.35 | 78.0 | -0.4943 | 0.1731 |
| 0.35 | 282.0 | 0.0934 | 0.1924 |
| 0.35 | 294.0 | 0.2121 | 0.2235 |
| 0.45 | 66.0 | -0.0457 | 0.1929 |
| 0.45 | 78.0 | 0.2297 | 0.1981 |
| 0.45 | 270.0 | -0.3201 | 0.2082 |
| 0.45 | 282.0 | 0.025 | 0.1749 |
| 0.45 | 294.0 | -0.0811 | 0.1956 |
| 0.55 | 102.0 | -0.1866 | 0.2194 |
| 0.55 | 114.0 | -0.2048 | 0.2178 |
| 0.55 | 126.0 | 0.1761 | 0.2578 |
| 0.55 | 258.0 | 0.2024 | 0.2502 |
| 0.55 | 270.0 | 0.1803 | 0.226 |
| 0.55 | 282.0 | -0.2171 | 0.2084 |
| 0.55 | 294.0 | 0.1441 | 0.2589 |
| 0.65 | 66.0 | -0.317 | 0.2457 |
| 0.65 | 78.0 | 0.0383 | 0.2488 |
| 0.65 | 90.0 | 0.2524 | 0.2742 |
| 0.65 | 102.0 | 0.1646 | 0.2362 |
| 0.65 | 114.0 | -0.1032 | 0.1875 |
| 0.65 | 126.0 | 0.1827 | 0.223 |
| 0.65 | 222.0 | -0.0463 | 0.2245 |
| 0.65 | 234.0 | 0.2351 | 0.2121 |
| 0.65 | 246.0 | -0.5167 | 0.1901 |
| 0.65 | 258.0 | -0.216 | 0.2279 |
| 0.65 | 270.0 | 0.265 | 0.2142 |
| 0.65 | 282.0 | -0.2157 | 0.2569 |
| 0.65 | 306.0 | -0.1162 | 0.2322 |
| 0.75 | 90.0 | 0.0691 | 0.2363 |
| 0.75 | 102.0 | 0.0796 | 0.1881 |
| 0.75 | 114.0 | 0.3253 | 0.1551 |
| 0.75 | 126.0 | 0.1424 | 0.1717 |
| 0.75 | 138.0 | 0.0756 | 0.2004 |
| 0.75 | 150.0 | 0.2104 | 0.2592 |
| 0.75 | 222.0 | -0.0812 | 0.1873 |
| 0.75 | 234.0 | -0.1113 | 0.1878 |
| 0.75 | 246.0 | -0.045 | 0.2254 |
| 0.75 | 258.0 | -0.2809 | 0.1813 |
| 0.75 | 270.0 | 0.5414 | 0.2128 |
| 0.85 | 78.0 | -0.1633 | 0.2524 |
| 0.85 | 90.0 | -0.3259 | 0.2442 |
| 0.85 | 102.0 | -0.4317 | 0.2287 |
| 0.85 | 114.0 | -0.0108 | 0.2257 |
| 0.85 | 126.0 | 0.4325 | 0.1873 |
| 0.85 | 138.0 | 0.0848 | 0.2256 |
| 0.85 | 210.0 | 0.2346 | 0.2334 |
| 0.85 | 222.0 | 0.0061 | 0.2035 |
| 0.85 | 234.0 | 0.1199 | 0.1763 |
| 0.85 | 246.0 | -0.1713 | 0.1567 |
| 0.85 | 258.0 | 0.0545 | 0.1698 |
| 0.85 | 270.0 | -0.1926 | 0.2213 |
| 0.95 | 210.0 | -0.1839 | 0.2533 |
| 0.95 | 222.0 | -0.1648 | 0.2242 |
| 0.95 | 246.0 | 0.3925 | 0.2054 |
| 0.95 | 258.0 | 0.2034 | 0.2053 |
| 0.25 | 306.0 | -0.3867 | 0.2396 |
| 0.35 | 66.0 | -0.0398 | 0.1757 |
| 0.35 | 78.0 | 0.3578 | 0.1964 |
| 0.35 | 282.0 | -0.1309 | 0.2113 |
| 0.35 | 294.0 | -0.0368 | 0.1836 |
| 0.45 | 66.0 | 0.1118 | 0.2424 |
| 0.45 | 78.0 | 0.3657 | 0.1864 |
| 0.45 | 90.0 | 0.3548 | 0.2419 |
| 0.45 | 270.0 | -0.0796 | 0.1953 |
| 0.45 | 282.0 | -0.1222 | 0.1809 |
| 0.45 | 294.0 | -0.0702 | 0.1849 |
| 0.55 | 78.0 | -0.0332 | 0.2089 |
| 0.55 | 102.0 | 0.0523 | 0.2528 |
| 0.55 | 114.0 | 0.2712 | 0.2015 |
| 0.55 | 258.0 | 0.1811 | 0.241 |
| 0.55 | 270.0 | 0.2396 | 0.2006 |
| 0.55 | 282.0 | -0.0821 | 0.1716 |
| 0.55 | 294.0 | -0.571 | 0.1973 |
| 0.65 | 90.0 | 0.115 | 0.2455 |
| 0.65 | 102.0 | 0.001 | 0.1821 |
| 0.65 | 114.0 | -0.2595 | 0.1712 |
| 0.65 | 126.0 | 0.2476 | 0.1672 |
| 0.65 | 138.0 | 0.1451 | 0.2091 |
| 0.65 | 222.0 | -0.4276 | 0.211 |
| 0.65 | 234.0 | 0.1872 | 0.2023 |
| 0.65 | 246.0 | -0.0346 | 0.2103 |
| 0.65 | 258.0 | -0.207 | 0.2542 |
| 0.65 | 270.0 | -0.3742 | 0.206 |
| 0.75 | 102.0 | 0.056 | 0.187 |
| 0.75 | 114.0 | -0.1196 | 0.1568 |
| 0.75 | 126.0 | 0.1942 | 0.1984 |
| 0.75 | 138.0 | 0.0069 | 0.187 |
| 0.75 | 150.0 | -0.2712 | 0.2288 |
| 0.75 | 210.0 | -0.4155 | 0.2305 |
| 0.75 | 222.0 | 0.0355 | 0.1842 |
| 0.75 | 234.0 | -0.0759 | 0.1864 |
| 0.75 | 246.0 | 0.0469 | 0.1663 |
| 0.75 | 258.0 | -0.0482 | 0.1686 |
| 0.75 | 270.0 | -0.5476 | 0.2242 |
| 0.75 | 294.0 | 0.0433 | 0.2351 |
| 0.85 | 90.0 | 0.2669 | 0.199 |
| 0.85 | 114.0 | 0.3137 | 0.198 |
| 0.85 | 126.0 | 0.1404 | 0.1883 |
| 0.85 | 138.0 | -0.0036 | 0.1938 |
| 0.85 | 210.0 | 0.1576 | 0.2394 |
| 0.85 | 222.0 | 0.178 | 0.2045 |
| 0.85 | 234.0 | 0.1491 | 0.2019 |
| 0.85 | 246.0 | -0.3072 | 0.1494 |
| 0.85 | 258.0 | 0.2512 | 0.1761 |
| 0.85 | 270.0 | 0.0052 | 0.2082 |
| 0.95 | 102.0 | 0.0132 | 0.2554 |
| 0.95 | 222.0 | -0.0117 | 0.2438 |
| 0.95 | 234.0 | -0.1152 | 0.212 |
| 0.95 | 246.0 | -0.197 | 0.2156 |
| 0.95 | 258.0 | -0.0605 | 0.1754 |
| 0.95 | 270.0 | -0.1441 | 0.2443 |
Experiment comment: