Measurement E151M3057
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1202 | |
| Q2: | 0.0844 GeV2 | |
| W: | 1505.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.8721 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 54.0 | -0.3215 | 0.2623 |
| 0.25 | 66.0 | 0.4664 | 0.2084 |
| 0.25 | 78.0 | -0.2885 | 0.2081 |
| 0.25 | 270.0 | 0.3899 | 0.2429 |
| 0.25 | 282.0 | 0.2927 | 0.2433 |
| 0.25 | 294.0 | -0.0778 | 0.2199 |
| 0.25 | 306.0 | -0.5835 | 0.2076 |
| 0.35 | 66.0 | 0.2028 | 0.1847 |
| 0.35 | 78.0 | 0.0602 | 0.2053 |
| 0.35 | 90.0 | -0.199 | 0.2315 |
| 0.35 | 270.0 | -0.0861 | 0.2112 |
| 0.35 | 282.0 | -0.0943 | 0.1642 |
| 0.35 | 294.0 | -0.0606 | 0.2424 |
| 0.35 | 306.0 | 0.1991 | 0.2421 |
| 0.45 | 66.0 | 0.1223 | 0.2118 |
| 0.45 | 78.0 | -0.0098 | 0.171 |
| 0.45 | 90.0 | -0.0096 | 0.2063 |
| 0.45 | 258.0 | -0.2579 | 0.2536 |
| 0.45 | 270.0 | 0.2934 | 0.1777 |
| 0.45 | 282.0 | -0.1865 | 0.1673 |
| 0.45 | 294.0 | 0.0377 | 0.2015 |
| 0.55 | 66.0 | -0.0277 | 0.2474 |
| 0.55 | 78.0 | 0.0406 | 0.1742 |
| 0.55 | 102.0 | 0.5457 | 0.2045 |
| 0.55 | 114.0 | -0.241 | 0.2074 |
| 0.55 | 126.0 | 0.0466 | 0.2192 |
| 0.55 | 138.0 | -0.5284 | 0.1918 |
| 0.55 | 222.0 | 0.0476 | 0.2702 |
| 0.55 | 234.0 | 0.0784 | 0.2014 |
| 0.55 | 258.0 | -0.5368 | 0.1976 |
| 0.55 | 270.0 | 0.327 | 0.1788 |
| 0.55 | 282.0 | -0.369 | 0.1808 |
| 0.55 | 294.0 | 0.0323 | 0.2702 |
| 0.65 | 66.0 | 0.1428 | 0.1956 |
| 0.65 | 78.0 | -0.1145 | 0.234 |
| 0.65 | 90.0 | 0.2096 | 0.2849 |
| 0.65 | 102.0 | -0.0884 | 0.2009 |
| 0.65 | 114.0 | 0.2549 | 0.1811 |
| 0.65 | 126.0 | 0.031 | 0.1777 |
| 0.65 | 138.0 | 0.2433 | 0.236 |
| 0.65 | 150.0 | 0.1242 | 0.2583 |
| 0.65 | 198.0 | 0.1065 | 0.2321 |
| 0.65 | 210.0 | -0.0836 | 0.2063 |
| 0.65 | 222.0 | 0.4676 | 0.157 |
| 0.65 | 234.0 | -0.1964 | 0.166 |
| 0.65 | 246.0 | 0.2171 | 0.1986 |
| 0.65 | 258.0 | -0.2715 | 0.2686 |
| 0.65 | 270.0 | -0.0281 | 0.2342 |
| 0.65 | 282.0 | -0.1829 | 0.2279 |
| 0.65 | 294.0 | 0.2668 | 0.1893 |
| 0.65 | 306.0 | -0.2217 | 0.2559 |
| 0.75 | 66.0 | -0.0639 | 0.2696 |
| 0.75 | 102.0 | 0.1468 | 0.2173 |
| 0.75 | 114.0 | 0.049 | 0.1618 |
| 0.75 | 126.0 | 0.0445 | 0.1609 |
| 0.75 | 138.0 | -0.1473 | 0.1812 |
| 0.75 | 150.0 | 0.0071 | 0.2496 |
| 0.75 | 198.0 | -0.0866 | 0.2226 |
| 0.75 | 210.0 | -0.1209 | 0.1572 |
| 0.75 | 222.0 | 0.1044 | 0.1551 |
| 0.75 | 234.0 | 0.2543 | 0.1411 |
| 0.75 | 246.0 | 0.2733 | 0.177 |
| 0.75 | 258.0 | -0.2102 | 0.2056 |
| 0.75 | 282.0 | 0.1149 | 0.2353 |
| 0.75 | 294.0 | -0.1874 | 0.197 |
| 0.85 | 90.0 | 0.1978 | 0.1824 |
| 0.85 | 102.0 | -0.1706 | 0.1932 |
| 0.85 | 114.0 | -0.0486 | 0.2501 |
| 0.85 | 126.0 | -0.2608 | 0.212 |
| 0.85 | 138.0 | -0.3469 | 0.2186 |
| 0.85 | 198.0 | 0.4419 | 0.2473 |
| 0.85 | 210.0 | -0.0715 | 0.2005 |
| 0.85 | 222.0 | 0.0499 | 0.1636 |
| 0.85 | 234.0 | 0.1129 | 0.1954 |
| 0.85 | 246.0 | 0.0019 | 0.1798 |
| 0.85 | 258.0 | -0.0953 | 0.206 |
| 0.85 | 270.0 | -0.3654 | 0.2309 |
| 0.95 | 102.0 | -0.0865 | 0.2708 |
| 0.95 | 114.0 | 0.3483 | 0.2241 |
| 0.95 | 210.0 | -0.336 | 0.2468 |
| 0.95 | 222.0 | 0.2877 | 0.2674 |
| 0.95 | 234.0 | 0.1864 | 0.2127 |
| 0.95 | 246.0 | -0.187 | 0.1957 |
| 0.95 | 258.0 | -0.4764 | 0.187 |
Experiment comment: