Measurement E151M3022
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0728 | |
| Q2: | 0.0348 GeV2 | |
| W: | 1445.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.9175 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 66.0 | 0.211 | 0.2226 |
| 0.25 | 78.0 | 0.2413 | 0.2483 |
| 0.25 | 294.0 | 0.0051 | 0.2601 |
| 0.35 | 54.0 | 0.6649 | 0.1767 |
| 0.35 | 66.0 | 0.1294 | 0.176 |
| 0.35 | 78.0 | 0.1447 | 0.1763 |
| 0.35 | 90.0 | 0.2828 | 0.232 |
| 0.35 | 270.0 | -0.3689 | 0.2284 |
| 0.35 | 282.0 | 0.412 | 0.1699 |
| 0.35 | 294.0 | 0.0216 | 0.1883 |
| 0.45 | 66.0 | 0.4641 | 0.1815 |
| 0.45 | 78.0 | -0.0032 | 0.1513 |
| 0.45 | 90.0 | -0.1278 | 0.209 |
| 0.45 | 258.0 | -0.5391 | 0.2178 |
| 0.45 | 270.0 | 0.0565 | 0.1731 |
| 0.45 | 282.0 | -0.196 | 0.1575 |
| 0.45 | 294.0 | -0.1535 | 0.1746 |
| 0.45 | 306.0 | 0.3129 | 0.2162 |
| 0.45 | 330.0 | -0.1268 | 0.2713 |
| 0.55 | 66.0 | 0.1877 | 0.2361 |
| 0.55 | 78.0 | 0.108 | 0.1664 |
| 0.55 | 90.0 | -0.0384 | 0.18 |
| 0.55 | 102.0 | 0.4663 | 0.1817 |
| 0.55 | 114.0 | -0.0486 | 0.232 |
| 0.55 | 126.0 | -0.1002 | 0.2077 |
| 0.55 | 138.0 | 0.2923 | 0.2439 |
| 0.55 | 222.0 | 0.0704 | 0.2209 |
| 0.55 | 234.0 | -0.2039 | 0.1964 |
| 0.55 | 246.0 | 0.268 | 0.1944 |
| 0.55 | 258.0 | -0.2017 | 0.2221 |
| 0.55 | 270.0 | 0.17 | 0.1736 |
| 0.55 | 282.0 | 0.0434 | 0.1495 |
| 0.55 | 294.0 | 0.0009 | 0.1803 |
| 0.65 | 66.0 | -0.3148 | 0.2048 |
| 0.65 | 78.0 | 0.1653 | 0.1962 |
| 0.65 | 90.0 | 0.0635 | 0.2474 |
| 0.65 | 102.0 | -0.0838 | 0.2616 |
| 0.65 | 114.0 | -0.0975 | 0.1973 |
| 0.65 | 126.0 | -0.2448 | 0.1531 |
| 0.65 | 138.0 | 0.0361 | 0.1842 |
| 0.65 | 150.0 | 0.3015 | 0.2314 |
| 0.65 | 198.0 | 0.4372 | 0.2059 |
| 0.65 | 210.0 | 0.1774 | 0.2183 |
| 0.65 | 222.0 | -0.0406 | 0.1616 |
| 0.65 | 234.0 | 0.109 | 0.171 |
| 0.65 | 246.0 | 0.1382 | 0.2108 |
| 0.65 | 258.0 | 0.2296 | 0.1932 |
| 0.65 | 270.0 | -0.3644 | 0.1965 |
| 0.65 | 282.0 | 0.1814 | 0.2185 |
| 0.65 | 294.0 | 0.0686 | 0.23 |
| 0.75 | 66.0 | -0.2276 | 0.2629 |
| 0.75 | 78.0 | 0.0613 | 0.192 |
| 0.75 | 102.0 | 0.1117 | 0.2742 |
| 0.75 | 114.0 | -0.0261 | 0.1818 |
| 0.75 | 126.0 | 0.0539 | 0.1537 |
| 0.75 | 138.0 | 0.2916 | 0.1719 |
| 0.75 | 150.0 | -0.0299 | 0.2054 |
| 0.75 | 162.0 | 0.2588 | 0.2556 |
| 0.75 | 198.0 | -0.061 | 0.2228 |
| 0.75 | 210.0 | -0.0287 | 0.1935 |
| 0.75 | 222.0 | 0.0803 | 0.176 |
| 0.75 | 234.0 | -0.2253 | 0.1366 |
| 0.75 | 246.0 | -0.3253 | 0.1858 |
| 0.75 | 258.0 | 0.0649 | 0.242 |
| 0.75 | 282.0 | 0.1177 | 0.1937 |
| 0.75 | 294.0 | -0.1256 | 0.2584 |
| 0.85 | 102.0 | -0.2327 | 0.2406 |
| 0.85 | 114.0 | 0.0109 | 0.228 |
| 0.85 | 126.0 | 0.3502 | 0.238 |
| 0.85 | 138.0 | -0.3602 | 0.2164 |
| 0.85 | 150.0 | 0.2308 | 0.2625 |
| 0.85 | 198.0 | 0.1168 | 0.2666 |
| 0.85 | 210.0 | -0.2575 | 0.1998 |
| 0.85 | 222.0 | -0.0786 | 0.1636 |
| 0.85 | 234.0 | -0.1177 | 0.1629 |
| 0.85 | 246.0 | -0.108 | 0.1784 |
| 0.85 | 258.0 | 0.111 | 0.2339 |
| 0.95 | 222.0 | 0.0386 | 0.2363 |
| 0.95 | 246.0 | 0.0487 | 0.2812 |
Experiment comment: