Measurement E151M2559
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1132 | |
| Q2: | 0.0415 GeV2 | |
| W: | 1355.0 GeV | |
| Ebeam: | 1.0539 GeV | |
| ε: | 0.7694 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 42.0 | 0.0896 | 0.2245 |
| 0.25 | 54.0 | 0.066 | 0.2154 |
| 0.35 | 30.0 | -0.2112 | 0.2155 |
| 0.35 | 42.0 | 0.0865 | 0.2076 |
| 0.35 | 54.0 | -0.5326 | 0.215 |
| 0.45 | 30.0 | 0.5648 | 0.1874 |
| 0.45 | 42.0 | 0.148 | 0.1667 |
| 0.45 | 54.0 | 0.0352 | 0.2544 |
| 0.45 | 258.0 | 0.0611 | 0.2477 |
| 0.55 | 42.0 | 0.2153 | 0.2294 |
| 0.55 | 54.0 | -0.2042 | 0.254 |
| 0.55 | 234.0 | 0.1693 | 0.2102 |
| 0.55 | 246.0 | 0.2808 | 0.1722 |
| 0.55 | 258.0 | 0.1146 | 0.18 |
| 0.55 | 270.0 | -0.5009 | 0.1988 |
| 0.65 | 138.0 | 0.0977 | 0.229 |
| 0.65 | 150.0 | 0.033 | 0.1802 |
| 0.65 | 162.0 | 0.0497 | 0.2395 |
| 0.65 | 174.0 | 0.1141 | 0.2408 |
| 0.65 | 186.0 | -0.2547 | 0.2407 |
| 0.65 | 210.0 | 0.0208 | 0.2514 |
| 0.65 | 222.0 | -0.0014 | 0.2076 |
| 0.65 | 234.0 | 0.1396 | 0.1386 |
| 0.65 | 246.0 | 0.1357 | 0.1512 |
| 0.65 | 258.0 | -0.0141 | 0.1504 |
| 0.65 | 270.0 | -0.2525 | 0.1727 |
| 0.75 | 126.0 | -0.0336 | 0.2494 |
| 0.75 | 138.0 | 0.0023 | 0.2318 |
| 0.75 | 150.0 | 0.2698 | 0.2021 |
| 0.75 | 162.0 | -0.0177 | 0.2154 |
| 0.75 | 174.0 | 0.4161 | 0.1905 |
| 0.75 | 186.0 | -0.4585 | 0.1885 |
| 0.75 | 210.0 | -0.1454 | 0.2484 |
| 0.75 | 222.0 | 0.2373 | 0.183 |
| 0.75 | 234.0 | 0.2293 | 0.1719 |
| 0.75 | 246.0 | -0.2258 | 0.1436 |
| 0.75 | 258.0 | 0.0717 | 0.1495 |
| 0.75 | 270.0 | 0.077 | 0.1548 |
| 0.85 | 126.0 | 0.3148 | 0.2465 |
| 0.85 | 150.0 | 0.289 | 0.2394 |
| 0.85 | 162.0 | 0.0504 | 0.2127 |
| 0.85 | 174.0 | 0.102 | 0.2202 |
| 0.85 | 210.0 | 0.0098 | 0.2532 |
| 0.85 | 222.0 | 0.2231 | 0.2005 |
| 0.85 | 234.0 | 0.0439 | 0.1865 |
| 0.85 | 246.0 | -0.0532 | 0.1507 |
| 0.85 | 258.0 | -0.1689 | 0.1301 |
| 0.85 | 270.0 | -0.1024 | 0.1529 |
| 0.85 | 282.0 | -0.1787 | 0.2357 |
| 0.95 | 234.0 | 0.3402 | 0.2394 |
| 0.95 | 246.0 | 0.1913 | 0.1835 |
| 0.95 | 258.0 | -0.003 | 0.2022 |
Experiment comment: