Measurement E151M3191
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.7987 | |
| Q2: | 0.205 GeV2 | |
| W: | 1265.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9462 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.55 | 282.0 | -0.1694 | 0.2576 |
| 0.65 | 282.0 | 0.0256 | 0.2131 |
| 0.75 | 90.0 | -0.2018 | 0.2552 |
| 0.75 | 102.0 | -0.145 | 0.2618 |
| 0.75 | 258.0 | 0.2923 | 0.2258 |
| 0.75 | 270.0 | -0.0261 | 0.2176 |
| 0.75 | 282.0 | -0.0349 | 0.2049 |
| 0.75 | 294.0 | 0.1573 | 0.225 |
| 0.85 | 78.0 | -0.4609 | 0.1941 |
| 0.85 | 90.0 | 0.0307 | 0.2346 |
| 0.85 | 102.0 | 0.4943 | 0.1829 |
| 0.85 | 246.0 | 0.3247 | 0.2366 |
| 0.85 | 258.0 | -0.2008 | 0.2009 |
| 0.85 | 282.0 | 0.0353 | 0.2302 |
| 0.85 | 294.0 | -0.2351 | 0.2249 |
| 0.95 | 78.0 | 0.0171 | 0.2371 |
| 0.95 | 90.0 | 0.6037 | 0.2233 |
| 0.95 | 126.0 | -0.1838 | 0.2233 |
| 0.95 | 270.0 | -0.2237 | 0.2379 |
| 0.35 | 66.0 | 0.0106 | 0.2664 |
| 0.55 | 270.0 | -0.0248 | 0.2421 |
| 0.55 | 282.0 | 0.5161 | 0.2148 |
| 0.65 | 282.0 | -0.4559 | 0.2384 |
| 0.75 | 270.0 | -0.0255 | 0.2383 |
| 0.75 | 282.0 | 0.1243 | 0.2463 |
| 0.85 | 114.0 | -0.1893 | 0.2581 |
| 0.85 | 126.0 | -0.0261 | 0.263 |
| 0.85 | 258.0 | 0.1897 | 0.2628 |
| 0.85 | 270.0 | -0.161 | 0.235 |
| 0.85 | 282.0 | 0.5152 | 0.1974 |
| 0.85 | 294.0 | 0.3027 | 0.2256 |
| 0.95 | 114.0 | 0.2216 | 0.0301 |
| 0.95 | 138.0 | -0.0454 | 0.2481 |
Experiment comment: