Measurement E151M2997
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.2894 | |
| Q2: | 0.1205 GeV2 | |
| W: | 1385.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.915 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 66.0 | -0.0979 | 0.2664 |
| 0.15 | 294.0 | -0.2679 | 0.2477 |
| 0.15 | 306.0 | -0.0364 | 0.2796 |
| 0.25 | 66.0 | 0.0291 | 0.1924 |
| 0.25 | 294.0 | 0.2355 | 0.2301 |
| 0.35 | 66.0 | -0.0723 | 0.1927 |
| 0.35 | 78.0 | 0.374 | 0.255 |
| 0.35 | 282.0 | 0.0716 | 0.2462 |
| 0.35 | 294.0 | -0.4721 | 0.2114 |
| 0.35 | 306.0 | -0.1883 | 0.2166 |
| 0.45 | 66.0 | 0.1482 | 0.2259 |
| 0.45 | 78.0 | -0.0406 | 0.2284 |
| 0.45 | 282.0 | 0.2653 | 0.1998 |
| 0.45 | 294.0 | -0.0094 | 0.2062 |
| 0.55 | 66.0 | 0.582 | 0.2119 |
| 0.55 | 78.0 | -0.2795 | 0.1884 |
| 0.55 | 258.0 | -0.2194 | 0.2524 |
| 0.55 | 282.0 | -0.3297 | 0.2297 |
| 0.55 | 294.0 | -0.1392 | 0.2318 |
| 0.65 | 66.0 | -0.4341 | 0.2253 |
| 0.65 | 90.0 | -0.4674 | 0.1936 |
| 0.65 | 102.0 | -0.0397 | 0.1926 |
| 0.65 | 114.0 | 0.1641 | 0.175 |
| 0.65 | 126.0 | 0.0083 | 0.2336 |
| 0.65 | 234.0 | -0.0115 | 0.2635 |
| 0.65 | 246.0 | -0.0967 | 0.2423 |
| 0.65 | 258.0 | -0.1128 | 0.1928 |
| 0.65 | 270.0 | 0.2433 | 0.225 |
| 0.75 | 90.0 | 0.1923 | 0.1921 |
| 0.75 | 102.0 | -0.0517 | 0.178 |
| 0.75 | 114.0 | -0.0185 | 0.1754 |
| 0.75 | 126.0 | 0.2314 | 0.2104 |
| 0.75 | 138.0 | 0.3836 | 0.1952 |
| 0.75 | 222.0 | 0.1728 | 0.2203 |
| 0.75 | 234.0 | 0.2057 | 0.2001 |
| 0.75 | 246.0 | -0.1853 | 0.1775 |
| 0.75 | 258.0 | -0.1227 | 0.1548 |
| 0.75 | 270.0 | 0.0315 | 0.185 |
| 0.75 | 282.0 | 0.3956 | 0.2289 |
| 0.85 | 78.0 | 0.1334 | 0.2538 |
| 0.85 | 90.0 | 0.0778 | 0.2436 |
| 0.85 | 102.0 | 0.1771 | 0.1737 |
| 0.85 | 114.0 | 0.0995 | 0.1694 |
| 0.85 | 126.0 | 0.4216 | 0.1497 |
| 0.85 | 138.0 | 0.1875 | 0.1809 |
| 0.85 | 150.0 | -0.5023 | 0.1942 |
| 0.85 | 210.0 | 0.1462 | 0.2103 |
| 0.85 | 222.0 | -0.1555 | 0.1978 |
| 0.85 | 234.0 | 0.1083 | 0.1801 |
| 0.85 | 246.0 | 0.1908 | 0.1611 |
| 0.85 | 258.0 | -0.1986 | 0.1448 |
| 0.85 | 270.0 | -0.0615 | 0.1646 |
| 0.85 | 282.0 | -0.2296 | 0.2127 |
| 0.95 | 78.0 | 0.5112 | 0.2032 |
| 0.95 | 90.0 | -0.6574 | 0.1982 |
| 0.95 | 102.0 | -0.1798 | 0.2827 |
| 0.95 | 126.0 | 0.0669 | 0.3038 |
| 0.95 | 138.0 | 0.155 | 0.2647 |
| 0.95 | 150.0 | -0.5351 | 0.2236 |
| 0.95 | 162.0 | -0.2116 | 0.2722 |
| 0.95 | 210.0 | -0.0595 | 0.2607 |
| 0.95 | 222.0 | -0.1462 | 0.2175 |
| 0.95 | 234.0 | 0.4099 | 0.2346 |
| 0.95 | 246.0 | 0.0078 | 0.1855 |
| 0.95 | 258.0 | -0.1737 | 0.1796 |
| 0.95 | 270.0 | 0.1369 | 0.1874 |
| 0.95 | 282.0 | -0.1092 | 0.2269 |
Experiment comment: