Measurement E151M2973
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.7121 | |
| Q2: | 0.348 GeV2 | |
| W: | 1325.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.8694 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.65 | 102.0 | -0.3279 | 0.243 |
| 0.65 | 282.0 | -0.3923 | 0.2423 |
| 0.75 | 78.0 | 0.2313 | 0.2435 |
| 0.75 | 102.0 | -0.0915 | 0.2531 |
| 0.75 | 114.0 | 0.0003 | 0.2659 |
| 0.75 | 258.0 | -0.3387 | 0.2668 |
| 0.75 | 270.0 | -0.217 | 0.2528 |
| 0.75 | 282.0 | 0.1539 | 0.2308 |
| 0.85 | 78.0 | -0.1524 | 0.2589 |
| 0.85 | 90.0 | 0.1972 | 0.2513 |
| 0.85 | 102.0 | 0.0693 | 0.2575 |
| 0.85 | 114.0 | 0.1822 | 0.212 |
| 0.85 | 234.0 | 0.0258 | 0.2733 |
| 0.85 | 246.0 | 0.248 | 0.2539 |
| 0.85 | 258.0 | 0.0839 | 0.2619 |
| 0.85 | 270.0 | 0.0913 | 0.2405 |
| 0.85 | 282.0 | 0.4383 | 0.237 |
| 0.85 | 294.0 | -0.2684 | 0.2301 |
| 0.85 | 306.0 | -0.0701 | 0.2809 |
| 0.95 | 114.0 | -0.1959 | 0.2617 |
| 0.95 | 282.0 | 0.3512 | 0.2245 |
| 0.95 | 294.0 | 0.0938 | 0.2486 |
Experiment comment: