Measurement E151M3448
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.4467 | |
| Q2: | 0.205 GeV2 | |
| W: | 1385.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.9558 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.05 | 54.0 | 0.7256 | 0.1822 |
| 0.05 | 66.0 | 0.2555 | 0.2175 |
| 0.05 | 306.0 | -0.0148 | 0.2272 |
| 0.15 | 54.0 | 0.2157 | 0.1955 |
| 0.15 | 66.0 | 0.2531 | 0.177 |
| 0.15 | 294.0 | 0.2368 | 0.1969 |
| 0.15 | 306.0 | -0.0493 | 0.1976 |
| 0.25 | 54.0 | 0.0709 | 0.2589 |
| 0.25 | 66.0 | 0.1115 | 0.1466 |
| 0.25 | 78.0 | -0.6252 | 0.1889 |
| 0.25 | 282.0 | 0.5587 | 0.1685 |
| 0.25 | 294.0 | -0.3039 | 0.1911 |
| 0.25 | 306.0 | -0.3825 | 0.1947 |
| 0.35 | 54.0 | -0.0036 | 0.2146 |
| 0.35 | 66.0 | 0.0646 | 0.1601 |
| 0.35 | 78.0 | -0.0016 | 0.1874 |
| 0.35 | 282.0 | 0.0852 | 0.2142 |
| 0.35 | 294.0 | -0.115 | 0.1646 |
| 0.35 | 306.0 | -0.1579 | 0.249 |
| 0.45 | 54.0 | 0.4219 | 0.1834 |
| 0.45 | 66.0 | -0.0036 | 0.2021 |
| 0.45 | 78.0 | 0.2176 | 0.2454 |
| 0.45 | 90.0 | 0.1863 | 0.2241 |
| 0.45 | 270.0 | 0.0462 | 0.2711 |
| 0.45 | 282.0 | -0.1433 | 0.1893 |
| 0.45 | 294.0 | 0.1125 | 0.1635 |
| 0.45 | 306.0 | -0.3818 | 0.2473 |
| 0.55 | 54.0 | 0.0168 | 0.2548 |
| 0.55 | 66.0 | -0.509 | 0.1913 |
| 0.55 | 78.0 | -0.4848 | 0.1848 |
| 0.55 | 90.0 | -0.0216 | 0.174 |
| 0.55 | 102.0 | -0.1921 | 0.17 |
| 0.55 | 258.0 | 0.0118 | 0.2317 |
| 0.55 | 270.0 | -0.0875 | 0.1812 |
| 0.55 | 282.0 | 0.2423 | 0.2157 |
| 0.55 | 294.0 | -0.1247 | 0.2521 |
| 0.55 | 306.0 | 0.5444 | 0.1944 |
| 0.65 | 66.0 | -0.2633 | 0.2483 |
| 0.65 | 78.0 | 0.1443 | 0.1419 |
| 0.65 | 90.0 | 0.0396 | 0.1262 |
| 0.65 | 102.0 | 0.01 | 0.1313 |
| 0.65 | 114.0 | -0.0454 | 0.1643 |
| 0.65 | 126.0 | 0.2034 | 0.2482 |
| 0.65 | 246.0 | -0.0807 | 0.1776 |
| 0.65 | 258.0 | -0.0834 | 0.1645 |
| 0.65 | 270.0 | 0.063 | 0.1603 |
| 0.65 | 282.0 | -0.0126 | 0.1939 |
| 0.65 | 294.0 | -0.1223 | 0.2298 |
| 0.65 | 306.0 | -0.3958 | 0.2603 |
| 0.75 | 54.0 | -0.3244 | 0.2613 |
| 0.75 | 66.0 | -0.007 | 0.2098 |
| 0.75 | 78.0 | 0.0239 | 0.1227 |
| 0.75 | 90.0 | 0.1471 | 0.1044 |
| 0.75 | 102.0 | 0.0622 | 0.1137 |
| 0.75 | 114.0 | 0.2077 | 0.1296 |
| 0.75 | 126.0 | 0.1755 | 0.1507 |
| 0.75 | 138.0 | -0.1773 | 0.2184 |
| 0.75 | 210.0 | -0.4279 | 0.2281 |
| 0.75 | 222.0 | 0.0916 | 0.2044 |
| 0.75 | 234.0 | -0.0119 | 0.1604 |
| 0.75 | 246.0 | -0.2752 | 0.1401 |
| 0.75 | 258.0 | 0.1089 | 0.1313 |
| 0.75 | 270.0 | 0.0064 | 0.1268 |
| 0.75 | 282.0 | -0.1287 | 0.1529 |
| 0.75 | 294.0 | 0.0643 | 0.1785 |
| 0.75 | 306.0 | 0.3642 | 0.27 |
| 0.85 | 54.0 | -0.0954 | 0.1892 |
| 0.85 | 66.0 | 0.1276 | 0.1767 |
| 0.85 | 78.0 | 0.1645 | 0.1459 |
| 0.85 | 90.0 | 0.1537 | 0.1213 |
| 0.85 | 102.0 | -0.1201 | 0.1105 |
| 0.85 | 114.0 | -0.2056 | 0.1165 |
| 0.85 | 126.0 | 0.3981 | 0.1249 |
| 0.85 | 138.0 | 0.1272 | 0.1802 |
| 0.85 | 150.0 | -0.3251 | 0.1694 |
| 0.85 | 198.0 | 0.0336 | 0.2074 |
| 0.85 | 210.0 | 0.0567 | 0.156 |
| 0.85 | 222.0 | -0.292 | 0.142 |
| 0.85 | 234.0 | -0.1177 | 0.1198 |
| 0.85 | 246.0 | -0.0134 | 0.1281 |
| 0.85 | 258.0 | -0.0267 | 0.1052 |
| 0.85 | 270.0 | -0.1711 | 0.1104 |
| 0.85 | 282.0 | -0.1287 | 0.1133 |
| 0.85 | 294.0 | -0.0732 | 0.1284 |
| 0.85 | 306.0 | -0.0248 | 0.1616 |
| 0.95 | 54.0 | -0.0613 | 0.1947 |
| 0.95 | 66.0 | -0.1519 | 0.2094 |
| 0.95 | 90.0 | 0.279 | 0.1543 |
| 0.95 | 102.0 | 0.0773 | 0.1596 |
| 0.95 | 114.0 | 0.1742 | 0.175 |
| 0.95 | 126.0 | -0.2618 | 0.173 |
| 0.95 | 138.0 | 0.0428 | 0.2055 |
| 0.95 | 150.0 | -0.1393 | 0.1975 |
| 0.95 | 162.0 | -0.124 | 0.2421 |
| 0.95 | 174.0 | 0.0127 | 0.2187 |
| 0.95 | 186.0 | 0.0922 | 0.2146 |
| 0.95 | 198.0 | 0.4207 | 0.1643 |
| 0.95 | 210.0 | -0.2618 | 0.1632 |
| 0.95 | 222.0 | -0.0703 | 0.1459 |
| 0.95 | 234.0 | 0.1069 | 0.1454 |
| 0.95 | 246.0 | -0.1194 | 0.1411 |
| 0.95 | 258.0 | 0.075 | 0.15 |
| 0.95 | 270.0 | -0.2895 | 0.1282 |
| 0.95 | 282.0 | -0.0049 | 0.1228 |
| 0.95 | 294.0 | -0.0526 | 0.1164 |
| 0.95 | 306.0 | -0.1551 | 0.1389 |
| 0.95 | 318.0 | 0.3045 | 0.2385 |
Experiment comment: