Measurement E151M3492
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.177 | |
| Q2: | 0.1205 GeV2 | |
| W: | 1505.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.945 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| -0.05 | 30.0 | 0.3438 | 0.2556 |
| 0.05 | 54.0 | -0.0436 | 0.2704 |
| 0.05 | 66.0 | 0.2331 | 0.2501 |
| 0.15 | 18.0 | -0.3206 | 0.251 |
| 0.15 | 54.0 | 0.3414 | 0.175 |
| 0.15 | 66.0 | 0.0949 | 0.1593 |
| 0.15 | 78.0 | -0.1717 | 0.234 |
| 0.15 | 282.0 | -0.1798 | 0.2788 |
| 0.15 | 294.0 | 0.126 | 0.1826 |
| 0.15 | 306.0 | -0.3322 | 0.1976 |
| 0.25 | 18.0 | -0.2814 | 0.2439 |
| 0.25 | 54.0 | 0.241 | 0.1757 |
| 0.25 | 66.0 | 0.1802 | 0.1365 |
| 0.25 | 78.0 | 0.0057 | 0.1506 |
| 0.25 | 270.0 | -0.2443 | 0.2514 |
| 0.25 | 282.0 | 0.0826 | 0.1547 |
| 0.25 | 294.0 | -0.0792 | 0.1422 |
| 0.25 | 306.0 | -0.3367 | 0.1855 |
| 0.35 | 54.0 | 0.1483 | 0.2083 |
| 0.35 | 66.0 | -0.0165 | 0.1439 |
| 0.35 | 78.0 | -0.0852 | 0.1478 |
| 0.35 | 90.0 | -0.1211 | 0.2283 |
| 0.35 | 102.0 | 0.1982 | 0.2689 |
| 0.35 | 258.0 | 0.2936 | 0.2295 |
| 0.35 | 270.0 | -0.1268 | 0.1477 |
| 0.35 | 282.0 | -0.0619 | 0.1257 |
| 0.35 | 294.0 | 0.0683 | 0.1253 |
| 0.35 | 306.0 | 0.0553 | 0.1985 |
| 0.45 | 54.0 | -0.2022 | 0.241 |
| 0.45 | 66.0 | 0.1307 | 0.1434 |
| 0.45 | 78.0 | 0.0596 | 0.1594 |
| 0.45 | 90.0 | 0.0603 | 0.1612 |
| 0.45 | 102.0 | -0.2176 | 0.1557 |
| 0.45 | 114.0 | -0.0704 | 0.1775 |
| 0.45 | 258.0 | 0.07 | 0.1938 |
| 0.45 | 270.0 | -0.0322 | 0.1214 |
| 0.45 | 282.0 | -0.1794 | 0.1168 |
| 0.45 | 294.0 | 0.1362 | 0.1195 |
| 0.45 | 306.0 | 0.1075 | 0.2668 |
| 0.55 | 54.0 | 0.1864 | 0.1945 |
| 0.55 | 66.0 | 0.0427 | 0.1717 |
| 0.55 | 78.0 | 0.0824 | 0.1868 |
| 0.55 | 90.0 | -0.092 | 0.154 |
| 0.55 | 102.0 | 0.0487 | 0.1328 |
| 0.55 | 114.0 | 0.1373 | 0.1235 |
| 0.55 | 126.0 | -0.2612 | 0.1651 |
| 0.55 | 138.0 | -0.3519 | 0.202 |
| 0.55 | 222.0 | 0.0088 | 0.271 |
| 0.55 | 234.0 | -0.0356 | 0.201 |
| 0.55 | 246.0 | 0.0835 | 0.2099 |
| 0.55 | 258.0 | -0.3632 | 0.1567 |
| 0.55 | 270.0 | 0.0088 | 0.1242 |
| 0.55 | 282.0 | -0.3288 | 0.1119 |
| 0.55 | 294.0 | 0.0617 | 0.1848 |
| 0.55 | 306.0 | 0.0011 | 0.1745 |
| 0.65 | 54.0 | 0.2813 | 0.1609 |
| 0.65 | 66.0 | 0.1765 | 0.2145 |
| 0.65 | 78.0 | 0.2351 | 0.182 |
| 0.65 | 90.0 | -0.1147 | 0.1375 |
| 0.65 | 102.0 | 0.1508 | 0.1083 |
| 0.65 | 114.0 | -0.0475 | 0.1131 |
| 0.65 | 126.0 | 0.3 | 0.1271 |
| 0.65 | 138.0 | 0.0646 | 0.1375 |
| 0.65 | 150.0 | -0.0958 | 0.1979 |
| 0.65 | 186.0 | 0.313 | 0.2579 |
| 0.65 | 198.0 | 0.1523 | 0.211 |
| 0.65 | 210.0 | 0.1616 | 0.1771 |
| 0.65 | 222.0 | -0.079 | 0.1378 |
| 0.65 | 234.0 | -0.0932 | 0.1316 |
| 0.65 | 246.0 | -0.0569 | 0.1406 |
| 0.65 | 258.0 | 0.1713 | 0.1453 |
| 0.65 | 270.0 | -0.2223 | 0.1502 |
| 0.65 | 282.0 | -0.2671 | 0.1747 |
| 0.65 | 294.0 | 0.065 | 0.1322 |
| 0.65 | 306.0 | 0.0014 | 0.165 |
| 0.75 | 66.0 | -0.1492 | 0.1921 |
| 0.75 | 78.0 | -0.0056 | 0.1745 |
| 0.75 | 90.0 | 0.1254 | 0.1461 |
| 0.75 | 102.0 | 0.0484 | 0.0991 |
| 0.75 | 114.0 | -0.0497 | 0.1081 |
| 0.75 | 126.0 | 0.0104 | 0.1123 |
| 0.75 | 138.0 | 0.1545 | 0.1475 |
| 0.75 | 150.0 | -0.1224 | 0.2283 |
| 0.75 | 162.0 | 0.0438 | 0.2799 |
| 0.75 | 174.0 | -0.2446 | 0.2082 |
| 0.75 | 186.0 | -0.1853 | 0.2075 |
| 0.75 | 198.0 | 0.1227 | 0.1582 |
| 0.75 | 210.0 | -0.0888 | 0.1353 |
| 0.75 | 222.0 | -0.0173 | 0.1231 |
| 0.75 | 234.0 | 0.0525 | 0.1125 |
| 0.75 | 246.0 | 0.2279 | 0.116 |
| 0.75 | 258.0 | 0.08 | 0.1351 |
| 0.75 | 270.0 | -0.1975 | 0.1916 |
| 0.75 | 282.0 | 0.2404 | 0.1659 |
| 0.75 | 294.0 | -0.1183 | 0.141 |
| 0.75 | 306.0 | 0.3228 | 0.2331 |
| 0.85 | 66.0 | -0.221 | 0.2212 |
| 0.85 | 78.0 | 0.0306 | 0.1203 |
| 0.85 | 90.0 | 0.1601 | 0.1341 |
| 0.85 | 102.0 | -0.092 | 0.1646 |
| 0.85 | 114.0 | 0.1878 | 0.1296 |
| 0.85 | 126.0 | -0.0891 | 0.137 |
| 0.85 | 138.0 | 0.0029 | 0.1509 |
| 0.85 | 150.0 | 0.0806 | 0.188 |
| 0.85 | 162.0 | -0.0753 | 0.2071 |
| 0.85 | 174.0 | -0.2047 | 0.2027 |
| 0.85 | 186.0 | 0.0788 | 0.1914 |
| 0.85 | 198.0 | -0.0668 | 0.1641 |
| 0.85 | 210.0 | -0.3058 | 0.1145 |
| 0.85 | 222.0 | -0.1624 | 0.1106 |
| 0.85 | 234.0 | -0.1614 | 0.1006 |
| 0.85 | 246.0 | -0.1126 | 0.1032 |
| 0.85 | 258.0 | -0.1042 | 0.1068 |
| 0.85 | 270.0 | -0.0699 | 0.138 |
| 0.85 | 282.0 | 0.075 | 0.1815 |
| 0.95 | 78.0 | 0.386 | 0.2068 |
| 0.95 | 90.0 | 0.3992 | 0.1455 |
| 0.95 | 102.0 | -0.015 | 0.1786 |
| 0.95 | 114.0 | 0.0524 | 0.2272 |
| 0.95 | 150.0 | 0.0175 | 0.2296 |
| 0.95 | 162.0 | 0.0385 | 0.2719 |
| 0.95 | 174.0 | 0.0795 | 0.2686 |
| 0.95 | 186.0 | 0.0794 | 0.1972 |
| 0.95 | 198.0 | -0.5517 | 0.1862 |
| 0.95 | 210.0 | -0.1226 | 0.1626 |
| 0.95 | 222.0 | -0.0806 | 0.1383 |
| 0.95 | 234.0 | 0.3223 | 0.1292 |
| 0.95 | 246.0 | -0.0652 | 0.1257 |
| 0.95 | 258.0 | 0.0847 | 0.1257 |
| 0.95 | 270.0 | -0.1372 | 0.116 |
| 0.95 | 282.0 | -0.2311 | 0.1475 |
Experiment comment: