Measurement E151M2590
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0141 | |
| Q2: | 0.0071 GeV2 | |
| W: | 1415.0 GeV | |
| Ebeam: | 1.0539 GeV | |
| ε: | 0.7202 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.35 | 42.0 | -0.2501 | 0.235 |
| 0.35 | 54.0 | -0.3225 | 0.2466 |
| 0.45 | 42.0 | 0.0821 | 0.2275 |
| 0.45 | 54.0 | -0.2593 | 0.163 |
| 0.45 | 222.0 | 0.3392 | 0.2185 |
| 0.45 | 234.0 | -0.3356 | 0.2152 |
| 0.55 | 18.0 | -0.1253 | 0.2498 |
| 0.55 | 30.0 | -0.1847 | 0.2332 |
| 0.55 | 42.0 | -0.5805 | 0.1812 |
| 0.55 | 54.0 | 0.0329 | 0.2115 |
| 0.55 | 222.0 | 0.2621 | 0.2092 |
| 0.55 | 234.0 | -0.2093 | 0.198 |
| 0.55 | 246.0 | 0.1809 | 0.238 |
| 0.65 | 42.0 | -0.111 | 0.2562 |
| 0.65 | 54.0 | 0.1357 | 0.2051 |
| 0.65 | 150.0 | 0.1836 | 0.2628 |
| 0.65 | 174.0 | 0.0169 | 0.2561 |
| 0.65 | 222.0 | -0.1083 | 0.1923 |
| 0.65 | 234.0 | 0.1936 | 0.1633 |
| 0.65 | 246.0 | -0.1127 | 0.2259 |
| 0.75 | 222.0 | -0.0737 | 0.2547 |
| 0.75 | 234.0 | 0.0862 | 0.203 |
| 0.75 | 246.0 | 0.1517 | 0.1823 |
| 0.85 | 210.0 | -0.4276 | 0.2424 |
| 0.85 | 222.0 | 0.2611 | 0.2023 |
| 0.85 | 234.0 | 0.0875 | 0.241 |
| 0.85 | 246.0 | -0.0179 | 0.191 |
Experiment comment: