Measurement E151M2981
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.2964 | |
| Q2: | 0.101 GeV2 | |
| W: | 1355.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.9308 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 306.0 | -0.0584 | 0.24 |
| 0.25 | 54.0 | -0.0786 | 0.2714 |
| 0.25 | 66.0 | 0.0124 | 0.2415 |
| 0.25 | 78.0 | 0.5808 | 0.1852 |
| 0.25 | 282.0 | -0.0384 | 0.2805 |
| 0.25 | 294.0 | -0.1529 | 0.1889 |
| 0.25 | 306.0 | -0.1281 | 0.2219 |
| 0.35 | 66.0 | 0.2448 | 0.1745 |
| 0.35 | 78.0 | 0.1452 | 0.1819 |
| 0.35 | 282.0 | 0.0738 | 0.2144 |
| 0.35 | 294.0 | 0.1438 | 0.2173 |
| 0.35 | 306.0 | 0.2515 | 0.2098 |
| 0.45 | 66.0 | -0.0369 | 0.1689 |
| 0.45 | 78.0 | 0.0696 | 0.1726 |
| 0.45 | 90.0 | 0.1296 | 0.2354 |
| 0.45 | 282.0 | 0.178 | 0.2349 |
| 0.45 | 294.0 | 0.0838 | 0.1959 |
| 0.55 | 66.0 | 0.2609 | 0.1993 |
| 0.55 | 78.0 | -0.1455 | 0.1832 |
| 0.55 | 258.0 | -0.1665 | 0.2288 |
| 0.55 | 270.0 | -0.0344 | 0.2194 |
| 0.55 | 282.0 | -0.0278 | 0.2397 |
| 0.55 | 294.0 | -0.2253 | 0.2669 |
| 0.65 | 66.0 | 0.0885 | 0.2434 |
| 0.65 | 78.0 | -0.0988 | 0.2265 |
| 0.65 | 90.0 | 0.3093 | 0.2162 |
| 0.65 | 102.0 | -0.171 | 0.204 |
| 0.65 | 114.0 | 0.3144 | 0.1836 |
| 0.65 | 126.0 | 0.6278 | 0.2 |
| 0.65 | 234.0 | -0.2267 | 0.2161 |
| 0.65 | 246.0 | 0.123 | 0.1773 |
| 0.65 | 258.0 | -0.0187 | 0.1841 |
| 0.65 | 270.0 | 0.0569 | 0.2069 |
| 0.65 | 282.0 | -0.0552 | 0.228 |
| 0.75 | 90.0 | -0.0991 | 0.1966 |
| 0.75 | 102.0 | -0.2166 | 0.1719 |
| 0.75 | 114.0 | 0.2096 | 0.1604 |
| 0.75 | 126.0 | 0.1452 | 0.1653 |
| 0.75 | 138.0 | 0.2545 | 0.2113 |
| 0.75 | 222.0 | -0.1591 | 0.2277 |
| 0.75 | 234.0 | 0.3812 | 0.1713 |
| 0.75 | 246.0 | -0.201 | 0.187 |
| 0.75 | 258.0 | -0.1224 | 0.171 |
| 0.75 | 270.0 | -0.3377 | 0.1714 |
| 0.75 | 282.0 | -0.0075 | 0.2107 |
| 0.85 | 90.0 | 0.1188 | 0.2514 |
| 0.85 | 102.0 | -0.1609 | 0.1503 |
| 0.85 | 114.0 | 0.1781 | 0.1574 |
| 0.85 | 126.0 | 0.055 | 0.1545 |
| 0.85 | 138.0 | -0.1078 | 0.1762 |
| 0.85 | 150.0 | -0.1344 | 0.1826 |
| 0.85 | 162.0 | 0.305 | 0.2157 |
| 0.85 | 210.0 | -0.4212 | 0.2251 |
| 0.85 | 222.0 | 0.041 | 0.1861 |
| 0.85 | 234.0 | -0.0669 | 0.1727 |
| 0.85 | 246.0 | -0.1315 | 0.1477 |
| 0.85 | 258.0 | -0.2105 | 0.1466 |
| 0.85 | 270.0 | -0.1131 | 0.1601 |
| 0.85 | 282.0 | 0.0348 | 0.1936 |
| 0.95 | 114.0 | -0.224 | 0.2568 |
| 0.95 | 126.0 | -0.065 | 0.2339 |
| 0.95 | 138.0 | 0.0727 | 0.2218 |
| 0.95 | 150.0 | -0.3721 | 0.1946 |
| 0.95 | 162.0 | 0.2832 | 0.2257 |
| 0.95 | 198.0 | 0.1198 | 0.255 |
| 0.95 | 210.0 | 0.2774 | 0.2208 |
| 0.95 | 222.0 | 0.0032 | 0.2247 |
| 0.95 | 234.0 | 0.0969 | 0.184 |
| 0.95 | 246.0 | -0.0969 | 0.1793 |
| 0.95 | 258.0 | 0.1816 | 0.1714 |
| 0.95 | 270.0 | -0.4094 | 0.1575 |
Experiment comment: