Measurement E151M2578
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0668 | |
| Q2: | 0.0291 GeV2 | |
| W: | 1385.0 GeV | |
| Ebeam: | 1.0539 GeV | |
| ε: | 0.741 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 30.0 | 0.2506 | 0.2359 |
| 0.25 | 42.0 | -0.2525 | 0.2145 |
| 0.25 | 54.0 | -0.1337 | 0.2265 |
| 0.35 | 30.0 | -0.1678 | 0.2208 |
| 0.35 | 42.0 | 0.1006 | 0.1536 |
| 0.35 | 54.0 | 0.0327 | 0.1583 |
| 0.35 | 66.0 | -0.3048 | 0.2299 |
| 0.45 | 18.0 | 0.1903 | 0.2103 |
| 0.45 | 30.0 | 0.2319 | 0.1554 |
| 0.45 | 42.0 | 0.2146 | 0.1602 |
| 0.45 | 54.0 | 0.1153 | 0.178 |
| 0.45 | 234.0 | -0.3542 | 0.2374 |
| 0.45 | 246.0 | 0.0443 | 0.2453 |
| 0.45 | 258.0 | 0.0112 | 0.2646 |
| 0.55 | 30.0 | -0.1753 | 0.2348 |
| 0.55 | 42.0 | 0.3202 | 0.1503 |
| 0.55 | 54.0 | -0.1724 | 0.1626 |
| 0.55 | 138.0 | 0.0805 | 0.2464 |
| 0.55 | 222.0 | 0.2034 | 0.1994 |
| 0.55 | 234.0 | 0.1824 | 0.1891 |
| 0.55 | 246.0 | 0.0991 | 0.1617 |
| 0.55 | 258.0 | 0.0002 | 0.1553 |
| 0.65 | 138.0 | 0.3408 | 0.194 |
| 0.65 | 150.0 | -0.2455 | 0.1974 |
| 0.65 | 162.0 | 0.1908 | 0.2244 |
| 0.65 | 174.0 | 0.2824 | 0.2216 |
| 0.65 | 210.0 | -0.3269 | 0.2178 |
| 0.65 | 222.0 | -0.0723 | 0.1654 |
| 0.65 | 234.0 | 0.1093 | 0.1333 |
| 0.65 | 246.0 | -0.187 | 0.1604 |
| 0.65 | 258.0 | -0.3299 | 0.14 |
| 0.65 | 270.0 | 0.0479 | 0.1962 |
| 0.75 | 138.0 | 0.0758 | 0.1927 |
| 0.75 | 150.0 | 0.0414 | 0.1686 |
| 0.75 | 162.0 | 0.2631 | 0.1761 |
| 0.75 | 174.0 | -0.2283 | 0.2031 |
| 0.75 | 186.0 | -0.0742 | 0.218 |
| 0.75 | 222.0 | -0.017 | 0.1927 |
| 0.75 | 234.0 | -0.006 | 0.1484 |
| 0.75 | 246.0 | -0.0486 | 0.1444 |
| 0.75 | 258.0 | 0.0668 | 0.1485 |
| 0.75 | 270.0 | -0.3579 | 0.1902 |
| 0.85 | 222.0 | 0.0449 | 0.214 |
| 0.85 | 234.0 | -0.0893 | 0.1482 |
| 0.85 | 246.0 | 0.0099 | 0.1396 |
| 0.85 | 258.0 | -0.192 | 0.1496 |
| 0.85 | 270.0 | -0.1028 | 0.1932 |
| 0.95 | 234.0 | 0.1449 | 0.2445 |
| 0.95 | 246.0 | 0.4642 | 0.2026 |
| 0.95 | 258.0 | -0.04 | 0.228 |
Experiment comment: