Measurement E151M3237
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.2578 | |
| Q2: | 0.101 GeV2 | |
| W: | 1385.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9405 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 66.0 | -0.2206 | 0.2129 |
| 0.25 | 78.0 | 0.3827 | 0.2291 |
| 0.25 | 294.0 | -0.2927 | 0.2157 |
| 0.35 | 66.0 | -0.0525 | 0.2253 |
| 0.35 | 78.0 | 0.0394 | 0.1957 |
| 0.35 | 282.0 | 0.0155 | 0.2057 |
| 0.35 | 294.0 | -0.5248 | 0.1852 |
| 0.35 | 306.0 | 0.2226 | 0.2367 |
| 0.45 | 66.0 | 0.4288 | 0.2142 |
| 0.45 | 78.0 | -0.0651 | 0.1708 |
| 0.45 | 282.0 | -0.0335 | 0.232 |
| 0.45 | 294.0 | 0.005 | 0.1983 |
| 0.55 | 66.0 | 0.0879 | 0.2473 |
| 0.55 | 78.0 | -0.3352 | 0.1954 |
| 0.55 | 90.0 | -0.2895 | 0.2254 |
| 0.55 | 102.0 | 0.0465 | 0.2634 |
| 0.55 | 114.0 | -0.1257 | 0.261 |
| 0.55 | 282.0 | -0.1019 | 0.2292 |
| 0.55 | 294.0 | 0.1192 | 0.2118 |
| 0.65 | 66.0 | -0.0731 | 0.2266 |
| 0.65 | 78.0 | 0.3429 | 0.2157 |
| 0.65 | 90.0 | -0.26 | 0.2259 |
| 0.65 | 102.0 | -0.0999 | 0.1792 |
| 0.65 | 114.0 | -0.1374 | 0.1815 |
| 0.65 | 126.0 | 0.0731 | 0.201 |
| 0.65 | 234.0 | -0.073 | 0.2248 |
| 0.65 | 246.0 | -0.0862 | 0.1956 |
| 0.65 | 258.0 | 0.1451 | 0.1725 |
| 0.65 | 270.0 | 0.1378 | 0.2627 |
| 0.75 | 90.0 | -0.028 | 0.2379 |
| 0.75 | 102.0 | -0.2364 | 0.1657 |
| 0.75 | 114.0 | 0.2105 | 0.1611 |
| 0.75 | 126.0 | -0.1792 | 0.1711 |
| 0.75 | 138.0 | -0.0967 | 0.2359 |
| 0.75 | 210.0 | 0.0694 | 0.2263 |
| 0.75 | 222.0 | -0.3557 | 0.1689 |
| 0.75 | 234.0 | 0.0476 | 0.1714 |
| 0.75 | 246.0 | 0.0282 | 0.1663 |
| 0.75 | 258.0 | 0.0961 | 0.173 |
| 0.75 | 270.0 | -0.1392 | 0.1793 |
| 0.85 | 90.0 | 0.0968 | 0.2295 |
| 0.85 | 102.0 | 0.2423 | 0.171 |
| 0.85 | 114.0 | 0.0857 | 0.1773 |
| 0.85 | 126.0 | -0.0153 | 0.1647 |
| 0.85 | 138.0 | -0.0584 | 0.1937 |
| 0.85 | 150.0 | -0.6051 | 0.195 |
| 0.85 | 222.0 | -0.3382 | 0.1759 |
| 0.85 | 234.0 | -0.1354 | 0.1592 |
| 0.85 | 246.0 | -0.1482 | 0.1532 |
| 0.85 | 258.0 | -0.0721 | 0.1533 |
| 0.85 | 270.0 | -0.0503 | 0.1651 |
| 0.85 | 282.0 | 0.0653 | 0.1734 |
| 0.95 | 90.0 | 0.1729 | 0.2481 |
| 0.95 | 126.0 | 0.3512 | 0.2254 |
| 0.95 | 222.0 | 0.3285 | 0.2185 |
| 0.95 | 234.0 | 0.3892 | 0.207 |
| 0.95 | 246.0 | -0.5252 | 0.1841 |
| 0.95 | 258.0 | -0.1129 | 0.1743 |
| 0.95 | 270.0 | -0.1052 | 0.1864 |
| 0.15 | 306.0 | 0.0906 | 0.2396 |
| 0.25 | 54.0 | 0.1617 | 0.2721 |
| 0.25 | 66.0 | -0.1379 | 0.2271 |
| 0.25 | 294.0 | 0.0225 | 0.2554 |
| 0.35 | 66.0 | 0.1457 | 0.2022 |
| 0.35 | 78.0 | -0.006 | 0.2081 |
| 0.35 | 282.0 | 0.307 | 0.2305 |
| 0.35 | 294.0 | 0.2226 | 0.1843 |
| 0.35 | 306.0 | -0.2526 | 0.223 |
| 0.45 | 66.0 | -0.0885 | 0.2298 |
| 0.45 | 78.0 | 0.1188 | 0.1777 |
| 0.45 | 270.0 | 0.1057 | 0.2496 |
| 0.45 | 282.0 | -0.3183 | 0.1981 |
| 0.45 | 294.0 | 0.0185 | 0.1915 |
| 0.55 | 66.0 | 0.4345 | 0.2034 |
| 0.55 | 78.0 | -0.0276 | 0.1959 |
| 0.55 | 90.0 | 0.3111 | 0.2361 |
| 0.55 | 270.0 | 0.2802 | 0.2202 |
| 0.55 | 282.0 | 0.1328 | 0.1979 |
| 0.55 | 294.0 | -0.019 | 0.2322 |
| 0.65 | 102.0 | 0.3029 | 0.183 |
| 0.65 | 114.0 | -0.0336 | 0.2114 |
| 0.65 | 126.0 | -0.0298 | 0.25 |
| 0.65 | 246.0 | 0.0545 | 0.2311 |
| 0.65 | 258.0 | -0.0833 | 0.1995 |
| 0.65 | 270.0 | 0.2907 | 0.2509 |
| 0.75 | 90.0 | 0.0276 | 0.2238 |
| 0.75 | 102.0 | 0.1067 | 0.1764 |
| 0.75 | 114.0 | 0.0772 | 0.1641 |
| 0.75 | 126.0 | -0.09 | 0.1859 |
| 0.75 | 138.0 | -0.1169 | 0.2259 |
| 0.75 | 222.0 | -0.4498 | 0.1605 |
| 0.75 | 234.0 | -0.0271 | 0.177 |
| 0.75 | 246.0 | 0.1745 | 0.1629 |
| 0.75 | 258.0 | 0.1927 | 0.1736 |
| 0.75 | 270.0 | -0.1482 | 0.2231 |
| 0.75 | 282.0 | -0.0877 | 0.2398 |
| 0.85 | 78.0 | 0.13 | 0.2461 |
| 0.85 | 90.0 | -0.5623 | 0.2272 |
| 0.85 | 102.0 | 0.0474 | 0.1891 |
| 0.85 | 114.0 | 0.1737 | 0.1951 |
| 0.85 | 126.0 | -0.0826 | 0.1671 |
| 0.85 | 138.0 | 0.0851 | 0.1844 |
| 0.85 | 150.0 | -0.1854 | 0.2144 |
| 0.85 | 210.0 | 0.0486 | 0.2538 |
| 0.85 | 222.0 | 0.0539 | 0.1982 |
| 0.85 | 234.0 | 0.5046 | 0.1575 |
| 0.85 | 246.0 | 0.4378 | 0.1783 |
| 0.85 | 258.0 | -0.2318 | 0.1715 |
| 0.85 | 270.0 | -0.2504 | 0.1774 |
| 0.85 | 282.0 | -0.0443 | 0.1824 |
| 0.95 | 90.0 | -0.0427 | 0.2515 |
| 0.95 | 126.0 | 0.1215 | 0.2493 |
| 0.95 | 210.0 | -0.6296 | 0.2143 |
| 0.95 | 222.0 | -0.2889 | 0.2233 |
| 0.95 | 234.0 | 0.3511 | 0.2324 |
| 0.95 | 246.0 | 0.1427 | 0.2189 |
| 0.95 | 258.0 | 0.0603 | 0.2021 |
| 0.95 | 270.0 | -0.1945 | 0.208 |
Experiment comment: