Measurement E151M3281
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.22 | |
| Q2: | 0.1435 GeV2 | |
| W: | 1475.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9013 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.35 | 66.0 | -0.0964 | 0.2623 |
| 0.35 | 282.0 | 0.1709 | 0.2365 |
| 0.45 | 66.0 | 0.0519 | 0.2644 |
| 0.45 | 282.0 | -0.4859 | 0.1972 |
| 0.45 | 294.0 | 0.249 | 0.2216 |
| 0.55 | 102.0 | 0.0381 | 0.2474 |
| 0.55 | 114.0 | 0.5823 | 0.2116 |
| 0.55 | 282.0 | -0.2007 | 0.2305 |
| 0.55 | 306.0 | 0.1268 | 0.2637 |
| 0.65 | 102.0 | -0.1269 | 0.2244 |
| 0.65 | 114.0 | 0.3834 | 0.21 |
| 0.65 | 126.0 | 0.4154 | 0.1998 |
| 0.65 | 246.0 | -0.3996 | 0.2156 |
| 0.65 | 258.0 | -0.3118 | 0.2411 |
| 0.75 | 102.0 | -0.3771 | 0.1968 |
| 0.75 | 114.0 | 0.1836 | 0.1765 |
| 0.75 | 126.0 | -0.1323 | 0.231 |
| 0.75 | 210.0 | 0.129 | 0.2469 |
| 0.75 | 222.0 | -0.1266 | 0.2196 |
| 0.75 | 234.0 | -0.0516 | 0.2452 |
| 0.75 | 246.0 | -0.292 | 0.2308 |
| 0.85 | 102.0 | -0.304 | 0.2588 |
| 0.85 | 126.0 | 0.1959 | 0.2221 |
| 0.85 | 222.0 | 0.3077 | 0.228 |
| 0.85 | 234.0 | -0.227 | 0.2038 |
| 0.85 | 246.0 | 0.1257 | 0.1903 |
| 0.85 | 258.0 | 0.5053 | 0.171 |
| 0.95 | 102.0 | -0.2392 | 0.2561 |
| 0.95 | 234.0 | -0.1771 | 0.2588 |
| 0.95 | 246.0 | 0.0904 | 0.2553 |
| 0.95 | 258.0 | -0.0908 | 0.2328 |
| 0.95 | 270.0 | -0.228 | 0.2204 |
| 0.25 | 66.0 | -0.0358 | 0.263 |
| 0.25 | 294.0 | 0.1771 | 0.2562 |
| 0.35 | 66.0 | -0.025 | 0.2276 |
| 0.35 | 78.0 | -0.3483 | 0.235 |
| 0.35 | 282.0 | -0.1653 | 0.2242 |
| 0.35 | 294.0 | 0.2204 | 0.209 |
| 0.45 | 78.0 | 0.3615 | 0.248 |
| 0.45 | 270.0 | 0.0383 | 0.2511 |
| 0.45 | 282.0 | 0.3127 | 0.2041 |
| 0.55 | 54.0 | -0.2817 | 0.2504 |
| 0.55 | 114.0 | 0.1185 | 0.2204 |
| 0.55 | 282.0 | -0.0412 | 0.2533 |
| 0.65 | 102.0 | -0.0 | 0.2234 |
| 0.65 | 114.0 | 0.0337 | 0.2011 |
| 0.65 | 126.0 | 0.0992 | 0.2104 |
| 0.65 | 222.0 | -0.1536 | 0.2449 |
| 0.65 | 246.0 | 0.2533 | 0.2146 |
| 0.65 | 258.0 | 0.2867 | 0.2177 |
| 0.75 | 90.0 | 0.2801 | 0.234 |
| 0.75 | 102.0 | -0.0081 | 0.2149 |
| 0.75 | 114.0 | 0.1366 | 0.2126 |
| 0.75 | 126.0 | 0.1451 | 0.2149 |
| 0.75 | 138.0 | 0.0514 | 0.2328 |
| 0.75 | 210.0 | -0.0947 | 0.2332 |
| 0.75 | 222.0 | -0.3638 | 0.2281 |
| 0.75 | 234.0 | 0.0101 | 0.1965 |
| 0.75 | 246.0 | -0.0446 | 0.2149 |
| 0.75 | 258.0 | -0.178 | 0.2466 |
| 0.85 | 78.0 | -0.0806 | 0.2257 |
| 0.85 | 90.0 | -0.3652 | 0.2253 |
| 0.85 | 114.0 | -0.1964 | 0.2368 |
| 0.85 | 126.0 | 0.1668 | 0.2228 |
| 0.85 | 138.0 | 0.1253 | 0.2514 |
| 0.85 | 222.0 | -0.1481 | 0.2287 |
| 0.85 | 234.0 | -0.1859 | 0.2227 |
| 0.85 | 246.0 | -0.2227 | 0.1844 |
| 0.85 | 258.0 | -0.3569 | 0.1987 |
| 0.85 | 270.0 | -0.225 | 0.2058 |
| 0.95 | 222.0 | -0.3518 | 0.2227 |
| 0.95 | 234.0 | -0.51 | 0.2344 |
| 0.95 | 246.0 | -0.1291 | 0.2268 |
| 0.95 | 258.0 | -0.2674 | 0.2239 |
| 0.95 | 270.0 | 0.4753 | 0.1788 |
Experiment comment: