Measurement E151M3211
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.3093 | |
| Q2: | 0.0844 GeV2 | |
| W: | 1325.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9578 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 306.0 | 0.0141 | 0.237 |
| 0.25 | 66.0 | 0.0745 | 0.2218 |
| 0.25 | 78.0 | -0.1449 | 0.2557 |
| 0.25 | 294.0 | -0.3139 | 0.2115 |
| 0.25 | 306.0 | -0.1842 | 0.2025 |
| 0.35 | 66.0 | -0.0166 | 0.2227 |
| 0.35 | 78.0 | 0.0218 | 0.1793 |
| 0.35 | 282.0 | -0.0161 | 0.2394 |
| 0.35 | 294.0 | -0.1943 | 0.1696 |
| 0.35 | 306.0 | -0.0231 | 0.2189 |
| 0.45 | 66.0 | 0.1725 | 0.1994 |
| 0.45 | 78.0 | 0.1724 | 0.1799 |
| 0.45 | 90.0 | 0.258 | 0.2475 |
| 0.45 | 282.0 | -0.1692 | 0.1903 |
| 0.45 | 294.0 | 0.0091 | 0.1854 |
| 0.55 | 66.0 | -0.1159 | 0.2032 |
| 0.55 | 78.0 | -0.2529 | 0.1927 |
| 0.55 | 90.0 | 0.027 | 0.1842 |
| 0.55 | 102.0 | -0.0615 | 0.2503 |
| 0.55 | 270.0 | -0.0287 | 0.2277 |
| 0.55 | 282.0 | 0.2647 | 0.1903 |
| 0.55 | 294.0 | -0.0708 | 0.2496 |
| 0.65 | 90.0 | 0.1148 | 0.2318 |
| 0.65 | 102.0 | -0.2211 | 0.1988 |
| 0.65 | 114.0 | 0.4896 | 0.1879 |
| 0.65 | 126.0 | -0.0274 | 0.2475 |
| 0.65 | 234.0 | 0.0143 | 0.2437 |
| 0.65 | 246.0 | 0.1308 | 0.2515 |
| 0.65 | 258.0 | -0.0217 | 0.1714 |
| 0.65 | 270.0 | -0.0626 | 0.1773 |
| 0.65 | 282.0 | 0.2446 | 0.2044 |
| 0.75 | 90.0 | -0.198 | 0.238 |
| 0.75 | 102.0 | 0.1149 | 0.1804 |
| 0.75 | 114.0 | 0.1765 | 0.1547 |
| 0.75 | 126.0 | 0.135 | 0.152 |
| 0.75 | 138.0 | -0.147 | 0.2199 |
| 0.75 | 222.0 | -0.3019 | 0.2486 |
| 0.75 | 234.0 | -0.0356 | 0.1741 |
| 0.75 | 246.0 | -0.4162 | 0.1606 |
| 0.75 | 258.0 | -0.0671 | 0.167 |
| 0.75 | 270.0 | 0.1852 | 0.167 |
| 0.75 | 282.0 | -0.1889 | 0.1656 |
| 0.75 | 294.0 | 0.0509 | 0.259 |
| 0.85 | 90.0 | -0.3169 | 0.2348 |
| 0.85 | 102.0 | 0.0353 | 0.1808 |
| 0.85 | 114.0 | 0.1351 | 0.1659 |
| 0.85 | 126.0 | 0.1848 | 0.1646 |
| 0.85 | 138.0 | 0.0197 | 0.1818 |
| 0.85 | 150.0 | 0.3594 | 0.1963 |
| 0.85 | 162.0 | -0.098 | 0.2491 |
| 0.85 | 222.0 | -0.1194 | 0.2555 |
| 0.85 | 234.0 | 0.1073 | 0.1586 |
| 0.85 | 246.0 | -0.2673 | 0.1408 |
| 0.85 | 258.0 | 0.0772 | 0.1377 |
| 0.85 | 270.0 | -0.1418 | 0.1595 |
| 0.85 | 282.0 | -0.2318 | 0.1736 |
| 0.95 | 126.0 | -0.0493 | 0.2311 |
| 0.95 | 138.0 | 0.0789 | 0.2133 |
| 0.95 | 150.0 | 0.6027 | 0.2084 |
| 0.95 | 162.0 | -0.2814 | 0.2574 |
| 0.95 | 174.0 | 0.2315 | 0.0303 |
| 0.95 | 210.0 | -0.2291 | 0.2262 |
| 0.95 | 222.0 | 0.0344 | 0.2506 |
| 0.95 | 234.0 | -0.1611 | 0.1772 |
| 0.95 | 246.0 | -0.0337 | 0.2068 |
| 0.95 | 258.0 | 0.311 | 0.1864 |
| 0.95 | 270.0 | -0.2128 | 0.2169 |
| 0.05 | 306.0 | 0.2754 | 0.2561 |
| 0.15 | 306.0 | 0.1362 | 0.2304 |
| 0.25 | 66.0 | -0.0027 | 0.2049 |
| 0.25 | 294.0 | 0.1883 | 0.2292 |
| 0.25 | 306.0 | 0.0907 | 0.1992 |
| 0.35 | 66.0 | -0.0174 | 0.1501 |
| 0.35 | 78.0 | -0.2644 | 0.177 |
| 0.35 | 282.0 | -0.2564 | 0.2323 |
| 0.35 | 294.0 | -0.3117 | 0.1669 |
| 0.35 | 306.0 | 0.1811 | 0.1974 |
| 0.45 | 66.0 | -0.2726 | 0.1893 |
| 0.45 | 78.0 | -0.1689 | 0.152 |
| 0.45 | 90.0 | 0.3442 | 0.2251 |
| 0.45 | 282.0 | -0.0686 | 0.2047 |
| 0.45 | 294.0 | -0.061 | 0.1788 |
| 0.55 | 66.0 | 0.2961 | 0.2033 |
| 0.55 | 78.0 | -0.0038 | 0.1916 |
| 0.55 | 90.0 | -0.1686 | 0.2034 |
| 0.55 | 258.0 | -0.004 | 0.2242 |
| 0.55 | 270.0 | 0.0433 | 0.1995 |
| 0.55 | 282.0 | 0.0204 | 0.1804 |
| 0.55 | 294.0 | 0.1624 | 0.2106 |
| 0.65 | 78.0 | 0.0692 | 0.2028 |
| 0.65 | 90.0 | 0.1594 | 0.2023 |
| 0.65 | 102.0 | -0.318 | 0.1962 |
| 0.65 | 114.0 | 0.1881 | 0.1925 |
| 0.65 | 246.0 | 0.2567 | 0.1798 |
| 0.65 | 258.0 | -0.0155 | 0.1674 |
| 0.65 | 270.0 | -0.0637 | 0.1617 |
| 0.65 | 282.0 | 0.0149 | 0.1858 |
| 0.75 | 78.0 | 0.1541 | 0.2625 |
| 0.75 | 90.0 | 0.0922 | 0.1971 |
| 0.75 | 102.0 | 0.2435 | 0.1533 |
| 0.75 | 114.0 | 0.0049 | 0.1427 |
| 0.75 | 126.0 | -0.1977 | 0.1666 |
| 0.75 | 222.0 | -0.2952 | 0.2163 |
| 0.75 | 234.0 | 0.1944 | 0.1612 |
| 0.75 | 246.0 | -0.0448 | 0.1591 |
| 0.75 | 258.0 | -0.0277 | 0.1545 |
| 0.75 | 270.0 | -0.2269 | 0.1752 |
| 0.75 | 282.0 | 0.0609 | 0.1941 |
| 0.85 | 90.0 | 0.3425 | 0.2412 |
| 0.85 | 102.0 | -0.0699 | 0.1583 |
| 0.85 | 114.0 | -0.3181 | 0.1329 |
| 0.85 | 126.0 | -0.1801 | 0.1467 |
| 0.85 | 138.0 | 0.2121 | 0.1499 |
| 0.85 | 150.0 | -0.3993 | 0.183 |
| 0.85 | 162.0 | 0.1188 | 0.1856 |
| 0.85 | 198.0 | -0.184 | 0.2521 |
| 0.85 | 222.0 | 0.1292 | 0.1964 |
| 0.85 | 234.0 | -0.2201 | 0.1667 |
| 0.85 | 246.0 | 0.1415 | 0.1361 |
| 0.85 | 258.0 | 0.2303 | 0.1405 |
| 0.85 | 270.0 | 0.2368 | 0.1371 |
| 0.85 | 282.0 | 0.1855 | 0.1898 |
| 0.95 | 114.0 | -0.1714 | 0.2189 |
| 0.95 | 126.0 | -0.0551 | 0.1917 |
| 0.95 | 138.0 | -0.1239 | 0.2257 |
| 0.95 | 150.0 | 0.3675 | 0.2263 |
| 0.95 | 162.0 | -0.3403 | 0.2172 |
| 0.95 | 174.0 | -0.3238 | 0.2196 |
| 0.95 | 210.0 | 0.276 | 0.2084 |
| 0.95 | 222.0 | -0.0847 | 0.2476 |
| 0.95 | 234.0 | 0.1783 | 0.1813 |
| 0.95 | 246.0 | -0.0453 | 0.186 |
| 0.95 | 258.0 | -0.109 | 0.1841 |
| 0.95 | 270.0 | -0.253 | 0.1885 |
Experiment comment: