Measurement E151M2572
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0247 | |
| Q2: | 0.0101 GeV2 | |
| W: | 1385.0 GeV | |
| Ebeam: | 1.0539 GeV | |
| ε: | 0.7635 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.35 | 42.0 | -0.1999 | 0.2482 |
| 0.35 | 54.0 | 0.1208 | 0.2156 |
| 0.45 | 42.0 | 0.0769 | 0.1799 |
| 0.45 | 54.0 | 0.0584 | 0.1644 |
| 0.45 | 222.0 | 0.1303 | 0.2413 |
| 0.45 | 234.0 | -0.073 | 0.2296 |
| 0.45 | 246.0 | 0.3785 | 0.2414 |
| 0.55 | 18.0 | -0.2939 | 0.2281 |
| 0.55 | 30.0 | -0.4128 | 0.1998 |
| 0.55 | 42.0 | -0.1402 | 0.151 |
| 0.55 | 54.0 | 0.1194 | 0.182 |
| 0.55 | 222.0 | 0.3891 | 0.1824 |
| 0.55 | 234.0 | -0.2672 | 0.1837 |
| 0.55 | 246.0 | 0.0782 | 0.1888 |
| 0.65 | 30.0 | -0.5187 | 0.2208 |
| 0.65 | 42.0 | 0.0267 | 0.2141 |
| 0.65 | 54.0 | 0.0967 | 0.1714 |
| 0.65 | 138.0 | 0.3768 | 0.2119 |
| 0.65 | 150.0 | -0.4608 | 0.1814 |
| 0.65 | 162.0 | 0.0919 | 0.202 |
| 0.65 | 210.0 | -0.3045 | 0.1993 |
| 0.65 | 222.0 | -0.2193 | 0.1671 |
| 0.65 | 234.0 | -0.0981 | 0.1531 |
| 0.65 | 246.0 | 0.2298 | 0.1485 |
| 0.75 | 138.0 | -0.0065 | 0.2327 |
| 0.75 | 150.0 | -0.1312 | 0.2409 |
| 0.75 | 162.0 | -0.439 | 0.2201 |
| 0.75 | 174.0 | 0.488 | 0.2238 |
| 0.75 | 210.0 | 0.2199 | 0.2554 |
| 0.75 | 222.0 | 0.1265 | 0.1727 |
| 0.75 | 234.0 | 0.1648 | 0.1591 |
| 0.75 | 246.0 | -0.1449 | 0.1615 |
| 0.75 | 258.0 | -0.3539 | 0.2422 |
| 0.85 | 222.0 | 0.3227 | 0.1941 |
| 0.85 | 234.0 | 0.242 | 0.1542 |
| 0.85 | 246.0 | -0.0033 | 0.169 |
| 0.85 | 258.0 | -0.1953 | 0.226 |
Experiment comment: