Measurement E151M3212
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.3561 | |
| Q2: | 0.101 GeV2 | |
| W: | 1325.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9546 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 66.0 | 0.0406 | 0.2461 |
| 0.15 | 294.0 | 0.1454 | 0.2581 |
| 0.15 | 306.0 | -0.0522 | 0.152 |
| 0.25 | 66.0 | -0.0883 | 0.1348 |
| 0.25 | 78.0 | 0.6694 | 0.2112 |
| 0.25 | 294.0 | -0.2212 | 0.1511 |
| 0.25 | 306.0 | 0.1634 | 0.1405 |
| 0.35 | 66.0 | 0.0471 | 0.1159 |
| 0.35 | 78.0 | -0.1301 | 0.1395 |
| 0.35 | 282.0 | -0.2048 | 0.2546 |
| 0.35 | 294.0 | 0.1268 | 0.1347 |
| 0.45 | 66.0 | 0.0377 | 0.2151 |
| 0.45 | 78.0 | -0.1784 | 0.1851 |
| 0.45 | 282.0 | -0.0556 | 0.2229 |
| 0.45 | 294.0 | 0.1666 | 0.188 |
| 0.55 | 66.0 | -0.0014 | 0.1923 |
| 0.55 | 78.0 | 0.0836 | 0.1969 |
| 0.55 | 90.0 | -0.1446 | 0.2511 |
| 0.55 | 258.0 | -0.2731 | 0.2449 |
| 0.55 | 270.0 | 0.0751 | 0.25 |
| 0.55 | 282.0 | 0.2967 | 0.2232 |
| 0.65 | 90.0 | 0.1813 | 0.241 |
| 0.65 | 114.0 | -0.2417 | 0.231 |
| 0.65 | 246.0 | -0.045 | 0.1887 |
| 0.65 | 258.0 | -0.0785 | 0.1834 |
| 0.65 | 270.0 | 0.1057 | 0.1903 |
| 0.65 | 282.0 | 0.1681 | 0.2031 |
| 0.75 | 90.0 | -0.0465 | 0.202 |
| 0.75 | 102.0 | 0.1013 | 0.169 |
| 0.75 | 114.0 | -0.0588 | 0.1565 |
| 0.75 | 126.0 | -0.1735 | 0.1745 |
| 0.75 | 222.0 | -0.1148 | 0.2486 |
| 0.75 | 234.0 | 0.0932 | 0.1961 |
| 0.75 | 246.0 | 0.1632 | 0.1761 |
| 0.75 | 258.0 | -0.1873 | 0.1475 |
| 0.75 | 270.0 | -0.2022 | 0.1607 |
| 0.75 | 282.0 | 0.0681 | 0.2174 |
| 0.85 | 90.0 | -0.5319 | 0.2083 |
| 0.85 | 102.0 | 0.0841 | 0.173 |
| 0.85 | 114.0 | -0.1082 | 0.1381 |
| 0.85 | 126.0 | 0.0877 | 0.1596 |
| 0.85 | 138.0 | -0.1192 | 0.1836 |
| 0.85 | 150.0 | -0.0369 | 0.2031 |
| 0.85 | 162.0 | 0.1724 | 0.2001 |
| 0.85 | 174.0 | -0.2156 | 0.2298 |
| 0.85 | 222.0 | 0.0292 | 0.1867 |
| 0.85 | 234.0 | 0.0912 | 0.1385 |
| 0.85 | 246.0 | 0.103 | 0.1413 |
| 0.85 | 258.0 | 0.0534 | 0.1392 |
| 0.85 | 270.0 | 0.0367 | 0.1472 |
| 0.85 | 282.0 | -0.3733 | 0.1733 |
| 0.95 | 102.0 | -0.0271 | 0.2386 |
| 0.95 | 114.0 | 0.1729 | 0.1863 |
| 0.95 | 126.0 | -0.0223 | 0.1878 |
| 0.95 | 138.0 | -0.3165 | 0.1858 |
| 0.95 | 150.0 | -0.1199 | 0.2349 |
| 0.95 | 162.0 | 0.5802 | 0.2144 |
| 0.95 | 186.0 | 0.3084 | 0.2436 |
| 0.95 | 210.0 | 0.1909 | 0.2083 |
| 0.95 | 222.0 | 0.0364 | 0.2086 |
| 0.95 | 234.0 | 0.2075 | 0.1993 |
| 0.95 | 246.0 | -0.3836 | 0.2262 |
| 0.95 | 258.0 | -0.2245 | 0.1737 |
| 0.95 | 270.0 | -0.2347 | 0.1609 |
| 0.35 | 306.0 | -0.1188 | 0.2282 |
| 0.45 | 66.0 | -0.0904 | 0.1816 |
| 0.45 | 78.0 | 0.2128 | 0.2169 |
| 0.45 | 294.0 | 0.3563 | 0.2098 |
| 0.55 | 66.0 | -0.1866 | 0.2136 |
| 0.55 | 78.0 | -0.5261 | 0.1831 |
| 0.55 | 270.0 | 0.1744 | 0.2301 |
| 0.55 | 282.0 | -0.2411 | 0.2184 |
| 0.65 | 66.0 | -0.0033 | 0.2559 |
| 0.65 | 78.0 | 0.0631 | 0.2345 |
| 0.65 | 90.0 | 0.0732 | 0.252 |
| 0.65 | 102.0 | -0.0349 | 0.2152 |
| 0.65 | 114.0 | -0.288 | 0.2049 |
| 0.65 | 246.0 | -0.2447 | 0.2112 |
| 0.65 | 258.0 | -0.2045 | 0.1967 |
| 0.65 | 270.0 | 0.02 | 0.1868 |
| 0.65 | 282.0 | 0.4436 | 0.1694 |
| 0.75 | 90.0 | 0.267 | 0.2101 |
| 0.75 | 102.0 | 0.1898 | 0.1766 |
| 0.75 | 114.0 | 0.0433 | 0.1583 |
| 0.75 | 126.0 | -0.0749 | 0.1758 |
| 0.75 | 222.0 | -0.4086 | 0.2284 |
| 0.75 | 234.0 | 0.1119 | 0.1891 |
| 0.75 | 246.0 | -0.1777 | 0.1699 |
| 0.75 | 258.0 | 0.0456 | 0.1434 |
| 0.75 | 270.0 | -0.0607 | 0.1581 |
| 0.75 | 282.0 | -0.0793 | 0.2257 |
| 0.75 | 294.0 | -0.3988 | 0.2396 |
| 0.85 | 90.0 | 0.1445 | 0.2108 |
| 0.85 | 102.0 | -0.0867 | 0.1496 |
| 0.85 | 114.0 | -0.2035 | 0.1704 |
| 0.85 | 126.0 | -0.1954 | 0.1513 |
| 0.85 | 138.0 | -0.0043 | 0.1799 |
| 0.85 | 150.0 | 0.0524 | 0.2091 |
| 0.85 | 210.0 | -0.082 | 0.2493 |
| 0.85 | 222.0 | 0.4815 | 0.2154 |
| 0.85 | 234.0 | -0.0489 | 0.1722 |
| 0.85 | 246.0 | -0.0742 | 0.1472 |
| 0.85 | 258.0 | 0.2546 | 0.1422 |
| 0.85 | 270.0 | -0.0223 | 0.1544 |
| 0.85 | 282.0 | 0.0407 | 0.1878 |
| 0.95 | 102.0 | -0.1312 | 0.2562 |
| 0.95 | 114.0 | 0.3642 | 0.252 |
| 0.95 | 126.0 | 0.2538 | 0.2089 |
| 0.95 | 138.0 | -0.4364 | 0.1963 |
| 0.95 | 150.0 | 0.1851 | 0.0316 |
| 0.95 | 222.0 | -0.0865 | 0.2376 |
| 0.95 | 234.0 | 0.0553 | 0.2056 |
| 0.95 | 246.0 | -0.0597 | 0.183 |
| 0.95 | 258.0 | -0.0946 | 0.1929 |
| 0.95 | 270.0 | 0.2073 | 0.1869 |
| 0.95 | 282.0 | -0.3847 | 0.2237 |
Experiment comment: