Measurement E151M3304
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0796 | |
| Q2: | 0.0593 GeV2 | |
| W: | 1535.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.899 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.35 | 66.0 | 0.2173 | 0.1953 |
| 0.35 | 78.0 | -0.4856 | 0.1872 |
| 0.35 | 270.0 | 0.0701 | 0.2285 |
| 0.35 | 282.0 | -0.0146 | 0.2365 |
| 0.45 | 66.0 | 0.0602 | 0.2163 |
| 0.45 | 78.0 | -0.064 | 0.1977 |
| 0.45 | 90.0 | 0.0527 | 0.2135 |
| 0.45 | 102.0 | -0.4976 | 0.2326 |
| 0.45 | 114.0 | -0.1901 | 0.258 |
| 0.45 | 126.0 | -0.1617 | 0.2497 |
| 0.45 | 270.0 | -0.1806 | 0.1828 |
| 0.45 | 282.0 | -0.3986 | 0.1875 |
| 0.45 | 294.0 | 0.2154 | 0.2078 |
| 0.55 | 78.0 | -0.0068 | 0.2407 |
| 0.55 | 90.0 | 0.3073 | 0.2334 |
| 0.55 | 114.0 | -0.1901 | 0.1949 |
| 0.55 | 138.0 | -0.4886 | 0.1902 |
| 0.55 | 222.0 | 0.1081 | 0.2516 |
| 0.55 | 234.0 | -0.0988 | 0.2479 |
| 0.55 | 246.0 | -0.1349 | 0.2378 |
| 0.55 | 258.0 | -0.1132 | 0.2586 |
| 0.55 | 270.0 | -0.0423 | 0.189 |
| 0.55 | 282.0 | 0.1392 | 0.2029 |
| 0.65 | 78.0 | -0.2714 | 0.2249 |
| 0.65 | 90.0 | -0.4836 | 0.2235 |
| 0.65 | 102.0 | -0.3213 | 0.2475 |
| 0.65 | 114.0 | 0.1791 | 0.1905 |
| 0.65 | 126.0 | 0.1039 | 0.2099 |
| 0.65 | 138.0 | -0.1024 | 0.1911 |
| 0.65 | 150.0 | 0.174 | 0.2103 |
| 0.65 | 162.0 | -0.2425 | 0.2577 |
| 0.65 | 198.0 | 0.3855 | 0.2374 |
| 0.65 | 210.0 | 0.1331 | 0.2212 |
| 0.65 | 222.0 | 0.2262 | 0.1848 |
| 0.65 | 234.0 | 0.18 | 0.2116 |
| 0.65 | 246.0 | 0.0144 | 0.2134 |
| 0.65 | 258.0 | -0.0388 | 0.2594 |
| 0.65 | 270.0 | 0.0218 | 0.2235 |
| 0.65 | 294.0 | 0.2388 | 0.2154 |
| 0.75 | 66.0 | 0.1065 | 0.231 |
| 0.75 | 102.0 | -0.181 | 0.2492 |
| 0.75 | 114.0 | -0.0077 | 0.2027 |
| 0.75 | 126.0 | -0.1895 | 0.1817 |
| 0.75 | 138.0 | 0.1801 | 0.2167 |
| 0.75 | 150.0 | 0.2847 | 0.2551 |
| 0.75 | 162.0 | 0.419 | 0.2452 |
| 0.75 | 198.0 | 0.2013 | 0.251 |
| 0.75 | 210.0 | 0.0698 | 0.2063 |
| 0.75 | 222.0 | -0.5753 | 0.1681 |
| 0.75 | 234.0 | -0.101 | 0.2131 |
| 0.75 | 246.0 | 0.1438 | 0.2337 |
| 0.75 | 270.0 | -0.1098 | 0.2074 |
| 0.75 | 282.0 | -0.1727 | 0.1667 |
| 0.75 | 294.0 | -0.1569 | 0.2304 |
| 0.85 | 90.0 | -0.238 | 0.2413 |
| 0.85 | 102.0 | -0.0537 | 0.2292 |
| 0.85 | 114.0 | 0.3462 | 0.2398 |
| 0.85 | 126.0 | 0.0289 | 0.263 |
| 0.85 | 210.0 | -0.373 | 0.1836 |
| 0.85 | 222.0 | 0.3589 | 0.1959 |
| 0.85 | 234.0 | 0.4163 | 0.1636 |
| 0.85 | 246.0 | -0.1762 | 0.1979 |
| 0.85 | 258.0 | 0.079 | 0.2459 |
| 0.85 | 270.0 | 0.1682 | 0.2515 |
| 0.95 | 210.0 | 0.2362 | 0.2608 |
| 0.95 | 222.0 | -0.1355 | 0.2453 |
| 0.25 | 66.0 | -0.3555 | 0.2341 |
| 0.25 | 78.0 | -0.304 | 0.2121 |
| 0.25 | 294.0 | 0.1453 | 0.2377 |
| 0.35 | 66.0 | 0.005 | 0.2187 |
| 0.35 | 78.0 | -0.1295 | 0.1853 |
| 0.35 | 270.0 | 0.2278 | 0.2075 |
| 0.35 | 282.0 | -0.0375 | 0.2024 |
| 0.35 | 294.0 | 0.0051 | 0.2088 |
| 0.45 | 66.0 | 0.0232 | 0.2426 |
| 0.45 | 78.0 | -0.1094 | 0.1758 |
| 0.45 | 90.0 | -0.118 | 0.2405 |
| 0.45 | 114.0 | -0.0677 | 0.2278 |
| 0.45 | 258.0 | -0.0552 | 0.2235 |
| 0.45 | 270.0 | 0.0336 | 0.1681 |
| 0.45 | 282.0 | 0.0829 | 0.1793 |
| 0.45 | 294.0 | 0.0523 | 0.2359 |
| 0.55 | 66.0 | 0.061 | 0.2493 |
| 0.55 | 78.0 | 0.1712 | 0.2503 |
| 0.55 | 90.0 | 0.1603 | 0.238 |
| 0.55 | 102.0 | 0.0375 | 0.2274 |
| 0.55 | 114.0 | 0.0021 | 0.2493 |
| 0.55 | 126.0 | 0.0155 | 0.2049 |
| 0.55 | 138.0 | 0.3402 | 0.1973 |
| 0.55 | 210.0 | 0.0032 | 0.2251 |
| 0.55 | 234.0 | -0.0488 | 0.2537 |
| 0.55 | 246.0 | 0.2682 | 0.2026 |
| 0.55 | 258.0 | -0.1458 | 0.1873 |
| 0.55 | 270.0 | -0.2397 | 0.1742 |
| 0.55 | 282.0 | 0.2012 | 0.1646 |
| 0.65 | 66.0 | 0.1237 | 0.2135 |
| 0.65 | 78.0 | 0.2016 | 0.2425 |
| 0.65 | 102.0 | 0.1099 | 0.2193 |
| 0.65 | 114.0 | -0.1049 | 0.1712 |
| 0.65 | 126.0 | -0.0205 | 0.1781 |
| 0.65 | 138.0 | -0.1361 | 0.1804 |
| 0.65 | 210.0 | -0.3702 | 0.1924 |
| 0.65 | 222.0 | 0.0803 | 0.1928 |
| 0.65 | 234.0 | -0.0032 | 0.2087 |
| 0.65 | 258.0 | -0.0013 | 0.2248 |
| 0.65 | 270.0 | -0.1496 | 0.2125 |
| 0.65 | 294.0 | -0.3026 | 0.2058 |
| 0.75 | 102.0 | 0.2294 | 0.2247 |
| 0.75 | 114.0 | -0.1611 | 0.1865 |
| 0.75 | 126.0 | 0.0206 | 0.1746 |
| 0.75 | 138.0 | -0.481 | 0.1888 |
| 0.75 | 210.0 | -0.0447 | 0.1972 |
| 0.75 | 222.0 | 0.117 | 0.1721 |
| 0.75 | 234.0 | 0.1926 | 0.1887 |
| 0.75 | 246.0 | -0.157 | 0.2032 |
| 0.75 | 258.0 | 0.1828 | 0.2471 |
| 0.75 | 282.0 | 0.4095 | 0.1562 |
| 0.75 | 294.0 | -0.1541 | 0.187 |
| 0.85 | 90.0 | -0.1695 | 0.2083 |
| 0.85 | 102.0 | 0.4378 | 0.1949 |
| 0.85 | 114.0 | 0.2119 | 0.2101 |
| 0.85 | 126.0 | 0.0619 | 0.26 |
| 0.85 | 198.0 | 0.2619 | 0.24 |
| 0.85 | 210.0 | 0.2119 | 0.1859 |
| 0.85 | 222.0 | 0.1519 | 0.1701 |
| 0.85 | 234.0 | -0.1286 | 0.1884 |
| 0.85 | 246.0 | 0.0066 | 0.2042 |
| 0.95 | 114.0 | -0.2951 | 0.2009 |
| 0.95 | 210.0 | -0.2538 | 0.234 |
| 0.95 | 234.0 | -0.1807 | 0.2555 |
| 0.95 | 246.0 | 0.0886 | 0.2398 |
Experiment comment: