Measurement E151M2992
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1382 | |
| Q2: | 0.0496 GeV2 | |
| W: | 1385.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.9354 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 30.0 | -0.2606 | 0.2386 |
| 0.15 | 42.0 | -0.3739 | 0.2251 |
| 0.15 | 318.0 | 0.4379 | 0.2411 |
| 0.15 | 342.0 | -0.1861 | 0.2235 |
| 0.25 | 54.0 | 0.1226 | 0.263 |
| 0.25 | 66.0 | -0.2275 | 0.1875 |
| 0.25 | 78.0 | 0.0462 | 0.2111 |
| 0.25 | 282.0 | -0.1187 | 0.2463 |
| 0.25 | 294.0 | 0.0496 | 0.1945 |
| 0.25 | 306.0 | -0.0132 | 0.1888 |
| 0.25 | 342.0 | 0.1437 | 0.2506 |
| 0.35 | 18.0 | 0.0693 | 0.2678 |
| 0.35 | 30.0 | 0.0584 | 0.2358 |
| 0.35 | 66.0 | 0.1111 | 0.1509 |
| 0.35 | 78.0 | -0.0102 | 0.1441 |
| 0.35 | 90.0 | -0.0676 | 0.21 |
| 0.35 | 270.0 | -0.3357 | 0.2413 |
| 0.35 | 282.0 | -0.1507 | 0.1503 |
| 0.35 | 294.0 | 0.035 | 0.1377 |
| 0.35 | 306.0 | -0.236 | 0.1845 |
| 0.35 | 330.0 | 0.3507 | 0.2249 |
| 0.45 | 66.0 | -0.1748 | 0.1517 |
| 0.45 | 78.0 | 0.0203 | 0.1245 |
| 0.45 | 90.0 | 0.2121 | 0.1519 |
| 0.45 | 102.0 | -0.0721 | 0.2513 |
| 0.45 | 258.0 | 0.4873 | 0.2412 |
| 0.45 | 270.0 | 0.0336 | 0.1587 |
| 0.45 | 282.0 | -0.0351 | 0.1335 |
| 0.45 | 294.0 | -0.0948 | 0.1365 |
| 0.45 | 306.0 | -0.2577 | 0.1751 |
| 0.55 | 66.0 | -0.2765 | 0.1817 |
| 0.55 | 78.0 | 0.0088 | 0.1318 |
| 0.55 | 90.0 | 0.0396 | 0.1538 |
| 0.55 | 102.0 | 0.2034 | 0.2226 |
| 0.55 | 114.0 | -0.0128 | 0.1777 |
| 0.55 | 126.0 | 0.0615 | 0.2077 |
| 0.55 | 234.0 | -0.2012 | 0.2708 |
| 0.55 | 246.0 | -0.0645 | 0.2224 |
| 0.55 | 258.0 | 0.2197 | 0.1872 |
| 0.55 | 270.0 | -0.1915 | 0.1553 |
| 0.55 | 282.0 | 0.0797 | 0.1332 |
| 0.55 | 294.0 | 0.1476 | 0.1594 |
| 0.65 | 66.0 | 0.0288 | 0.1717 |
| 0.65 | 78.0 | -0.0266 | 0.1736 |
| 0.65 | 90.0 | -0.0981 | 0.1869 |
| 0.65 | 102.0 | -0.307 | 0.1611 |
| 0.65 | 114.0 | 0.1283 | 0.163 |
| 0.65 | 126.0 | -0.0811 | 0.1464 |
| 0.65 | 138.0 | -0.1649 | 0.1635 |
| 0.65 | 150.0 | -0.1662 | 0.2175 |
| 0.65 | 210.0 | -0.1841 | 0.2703 |
| 0.65 | 222.0 | -0.4863 | 0.1603 |
| 0.65 | 234.0 | -0.5336 | 0.1462 |
| 0.65 | 246.0 | -0.1964 | 0.1633 |
| 0.65 | 258.0 | 0.0477 | 0.1652 |
| 0.65 | 270.0 | -0.2004 | 0.1513 |
| 0.65 | 282.0 | -0.0697 | 0.206 |
| 0.65 | 294.0 | -0.023 | 0.2279 |
| 0.65 | 306.0 | -0.0392 | 0.2466 |
| 0.75 | 78.0 | 0.0068 | 0.1993 |
| 0.75 | 90.0 | -0.1159 | 0.2324 |
| 0.75 | 102.0 | 0.2511 | 0.1547 |
| 0.75 | 114.0 | -0.0522 | 0.1375 |
| 0.75 | 126.0 | 0.0951 | 0.1192 |
| 0.75 | 138.0 | -0.09 | 0.1524 |
| 0.75 | 150.0 | -0.0001 | 0.1738 |
| 0.75 | 162.0 | 0.4739 | 0.2151 |
| 0.75 | 186.0 | -0.2745 | 0.2842 |
| 0.75 | 198.0 | -0.4513 | 0.2483 |
| 0.75 | 210.0 | 0.4477 | 0.1658 |
| 0.75 | 222.0 | 0.1006 | 0.1506 |
| 0.75 | 234.0 | 0.1803 | 0.1321 |
| 0.75 | 246.0 | -0.0553 | 0.1385 |
| 0.75 | 258.0 | 0.0277 | 0.1453 |
| 0.75 | 270.0 | -0.0098 | 0.1916 |
| 0.75 | 282.0 | 0.2453 | 0.2149 |
| 0.85 | 90.0 | -0.3275 | 0.2419 |
| 0.85 | 102.0 | -0.5166 | 0.2077 |
| 0.85 | 114.0 | -0.124 | 0.1521 |
| 0.85 | 126.0 | 0.1166 | 0.1475 |
| 0.85 | 138.0 | 0.161 | 0.1551 |
| 0.85 | 150.0 | 0.1072 | 0.1874 |
| 0.85 | 174.0 | -0.2467 | 0.2608 |
| 0.85 | 198.0 | 0.0961 | 0.2549 |
| 0.85 | 210.0 | -0.165 | 0.1887 |
| 0.85 | 222.0 | -0.4345 | 0.1401 |
| 0.85 | 234.0 | -0.1194 | 0.1315 |
| 0.85 | 246.0 | 0.1711 | 0.1503 |
| 0.85 | 258.0 | 0.0903 | 0.1583 |
| 0.85 | 270.0 | -0.124 | 0.2 |
| 0.95 | 198.0 | -0.2805 | 0.2828 |
| 0.95 | 210.0 | -0.0077 | 0.2886 |
| 0.95 | 222.0 | 0.0516 | 0.1994 |
| 0.95 | 234.0 | -0.2397 | 0.2132 |
| 0.95 | 246.0 | -0.1757 | 0.1894 |
| 0.95 | 258.0 | -0.1948 | 0.2455 |
Experiment comment: