Measurement E151M2570
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0175 | |
| Q2: | 0.0071 GeV2 | |
| W: | 1385.0 GeV | |
| Ebeam: | 1.0539 GeV | |
| ε: | 0.7671 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.45 | 42.0 | 0.6486 | 0.1603 |
| 0.45 | 54.0 | 0.046 | 0.2556 |
| 0.55 | 30.0 | 0.1815 | 0.2545 |
| 0.55 | 42.0 | -0.0059 | 0.1965 |
| 0.55 | 54.0 | 0.1927 | 0.2064 |
| 0.55 | 222.0 | -0.54 | 0.2009 |
| 0.55 | 234.0 | -0.0282 | 0.254 |
| 0.55 | 246.0 | 0.3443 | 0.182 |
| 0.65 | 42.0 | 0.2597 | 0.2132 |
| 0.65 | 54.0 | 0.0549 | 0.2143 |
| 0.65 | 150.0 | 0.1613 | 0.2435 |
| 0.65 | 222.0 | -0.3119 | 0.185 |
| 0.65 | 234.0 | 0.0476 | 0.219 |
| 0.65 | 246.0 | 0.1857 | 0.1877 |
| 0.65 | 258.0 | 0.1645 | 0.2372 |
| 0.75 | 222.0 | 0.0112 | 0.2267 |
| 0.75 | 234.0 | -0.1791 | 0.1803 |
| 0.75 | 246.0 | 0.1924 | 0.1933 |
| 0.75 | 258.0 | -0.2099 | 0.2422 |
| 0.85 | 222.0 | -0.3097 | 0.212 |
| 0.85 | 234.0 | -0.2049 | 0.1988 |
| 0.85 | 246.0 | -0.0321 | 0.2612 |
Experiment comment: