Measurement E151M2535
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0878 | |
| Q2: | 0.0245 GeV2 | |
| W: | 1325.0 GeV | |
| Ebeam: | 1.0539 GeV | |
| ε: | 0.825 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 42.0 | -0.4578 | 0.2045 |
| 0.25 | 42.0 | 0.0106 | 0.1799 |
| 0.25 | 54.0 | -0.0909 | 0.191 |
| 0.35 | 30.0 | 0.3731 | 0.213 |
| 0.35 | 42.0 | 0.3427 | 0.1773 |
| 0.35 | 54.0 | -0.2484 | 0.175 |
| 0.35 | 66.0 | -0.2336 | 0.2612 |
| 0.45 | 30.0 | 0.1026 | 0.1614 |
| 0.45 | 42.0 | 0.2483 | 0.1303 |
| 0.45 | 54.0 | -0.0118 | 0.2006 |
| 0.45 | 246.0 | -0.0692 | 0.2561 |
| 0.55 | 42.0 | 0.132 | 0.175 |
| 0.55 | 54.0 | -0.4018 | 0.1826 |
| 0.55 | 234.0 | -0.0981 | 0.1918 |
| 0.55 | 246.0 | 0.0687 | 0.1569 |
| 0.55 | 258.0 | -0.0321 | 0.1374 |
| 0.55 | 270.0 | -0.5685 | 0.183 |
| 0.65 | 138.0 | 0.0646 | 0.2362 |
| 0.65 | 150.0 | 0.117 | 0.1917 |
| 0.65 | 162.0 | 0.017 | 0.1864 |
| 0.65 | 174.0 | 0.1608 | 0.2208 |
| 0.65 | 198.0 | -0.4068 | 0.2411 |
| 0.65 | 210.0 | 0.1033 | 0.241 |
| 0.65 | 222.0 | -0.3463 | 0.1783 |
| 0.65 | 234.0 | 0.2607 | 0.142 |
| 0.65 | 246.0 | 0.1693 | 0.1291 |
| 0.65 | 258.0 | 0.0069 | 0.1257 |
| 0.65 | 270.0 | -0.0136 | 0.1508 |
| 0.75 | 126.0 | 0.2767 | 0.2369 |
| 0.75 | 138.0 | -0.0281 | 0.1726 |
| 0.75 | 150.0 | 0.087 | 0.1692 |
| 0.75 | 162.0 | 0.1857 | 0.1717 |
| 0.75 | 174.0 | -0.0014 | 0.2085 |
| 0.75 | 186.0 | -0.5403 | 0.1739 |
| 0.75 | 210.0 | -0.1106 | 0.2133 |
| 0.75 | 222.0 | -0.2654 | 0.1899 |
| 0.75 | 234.0 | -0.0803 | 0.1586 |
| 0.75 | 246.0 | -0.0424 | 0.1329 |
| 0.75 | 258.0 | -0.0602 | 0.1381 |
| 0.75 | 270.0 | -0.1705 | 0.1604 |
| 0.85 | 126.0 | 0.3901 | 0.2346 |
| 0.85 | 138.0 | -0.249 | 0.2167 |
| 0.85 | 150.0 | -0.1391 | 0.2153 |
| 0.85 | 162.0 | 0.0552 | 0.2419 |
| 0.85 | 174.0 | -0.2748 | 0.2402 |
| 0.85 | 222.0 | -0.3306 | 0.2082 |
| 0.85 | 234.0 | 0.0008 | 0.1365 |
| 0.85 | 246.0 | -0.0343 | 0.1401 |
| 0.85 | 258.0 | 0.0364 | 0.1279 |
| 0.85 | 270.0 | -0.4344 | 0.1372 |
| 0.95 | 246.0 | 0.0115 | 0.2418 |
Experiment comment: