Measurement E151M3055
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0882 | |
| Q2: | 0.0593 GeV2 | |
| W: | 1505.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.881 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 30.0 | -0.2772 | 0.2547 |
| 0.15 | 330.0 | -0.2622 | 0.2684 |
| 0.25 | 42.0 | 0.5257 | 0.2705 |
| 0.25 | 54.0 | 0.1779 | 0.2195 |
| 0.25 | 66.0 | 0.1623 | 0.1946 |
| 0.25 | 78.0 | 0.3385 | 0.2093 |
| 0.25 | 282.0 | 0.1733 | 0.2102 |
| 0.25 | 294.0 | 0.0887 | 0.2021 |
| 0.25 | 306.0 | 0.0283 | 0.2237 |
| 0.25 | 318.0 | -0.1939 | 0.2577 |
| 0.25 | 330.0 | 0.2614 | 0.266 |
| 0.35 | 18.0 | 0.4683 | 0.1937 |
| 0.35 | 30.0 | -0.065 | 0.2411 |
| 0.35 | 42.0 | -0.057 | 0.2651 |
| 0.35 | 54.0 | 0.1607 | 0.2847 |
| 0.35 | 66.0 | 0.1743 | 0.1625 |
| 0.35 | 78.0 | -0.2674 | 0.1421 |
| 0.35 | 90.0 | 0.0037 | 0.2095 |
| 0.35 | 102.0 | 0.3545 | 0.2578 |
| 0.35 | 270.0 | 0.2086 | 0.1575 |
| 0.35 | 282.0 | -0.1049 | 0.1511 |
| 0.35 | 294.0 | -0.0017 | 0.1506 |
| 0.35 | 306.0 | 0.0429 | 0.2029 |
| 0.45 | 66.0 | -0.2915 | 0.1893 |
| 0.45 | 78.0 | -0.0118 | 0.14 |
| 0.45 | 90.0 | 0.0751 | 0.1603 |
| 0.45 | 102.0 | 0.1163 | 0.2106 |
| 0.45 | 114.0 | 0.4708 | 0.207 |
| 0.45 | 126.0 | 0.2928 | 0.2119 |
| 0.45 | 222.0 | 0.4029 | 0.2608 |
| 0.45 | 246.0 | 0.0495 | 0.2603 |
| 0.45 | 258.0 | 0.0181 | 0.1984 |
| 0.45 | 270.0 | 0.381 | 0.149 |
| 0.45 | 282.0 | -0.0437 | 0.1354 |
| 0.45 | 294.0 | -0.079 | 0.1463 |
| 0.45 | 306.0 | 0.0804 | 0.2466 |
| 0.45 | 318.0 | -0.1895 | 0.2659 |
| 0.45 | 330.0 | -0.4498 | 0.2149 |
| 0.55 | 66.0 | 0.054 | 0.2319 |
| 0.55 | 78.0 | -0.2506 | 0.1662 |
| 0.55 | 90.0 | 0.2048 | 0.1759 |
| 0.55 | 102.0 | -0.3339 | 0.1851 |
| 0.55 | 114.0 | -0.1088 | 0.1696 |
| 0.55 | 126.0 | 0.1966 | 0.1717 |
| 0.55 | 138.0 | 0.2291 | 0.1988 |
| 0.55 | 150.0 | 0.0087 | 0.2391 |
| 0.55 | 198.0 | 0.0938 | 0.2674 |
| 0.55 | 210.0 | -0.2903 | 0.2021 |
| 0.55 | 222.0 | 0.1913 | 0.1992 |
| 0.55 | 234.0 | -0.0073 | 0.1817 |
| 0.55 | 246.0 | -0.129 | 0.1922 |
| 0.55 | 258.0 | -0.0455 | 0.193 |
| 0.55 | 270.0 | -0.0203 | 0.1558 |
| 0.55 | 282.0 | -0.1322 | 0.1447 |
| 0.55 | 294.0 | 0.1854 | 0.207 |
| 0.55 | 306.0 | 0.2688 | 0.3052 |
| 0.65 | 66.0 | -0.1755 | 0.1934 |
| 0.65 | 78.0 | -0.0204 | 0.2306 |
| 0.65 | 90.0 | -0.2282 | 0.201 |
| 0.65 | 102.0 | 0.0254 | 0.1878 |
| 0.65 | 114.0 | 0.0256 | 0.1484 |
| 0.65 | 126.0 | 0.1381 | 0.1455 |
| 0.65 | 138.0 | 0.0426 | 0.173 |
| 0.65 | 150.0 | 0.0876 | 0.2109 |
| 0.65 | 162.0 | 0.2111 | 0.2557 |
| 0.65 | 186.0 | 0.2235 | 0.2466 |
| 0.65 | 198.0 | -0.1591 | 0.1897 |
| 0.65 | 210.0 | 0.1702 | 0.1661 |
| 0.65 | 222.0 | 0.0361 | 0.1649 |
| 0.65 | 234.0 | 0.1084 | 0.1581 |
| 0.65 | 246.0 | -0.3025 | 0.162 |
| 0.65 | 258.0 | -0.211 | 0.1546 |
| 0.65 | 270.0 | -0.0159 | 0.1775 |
| 0.65 | 282.0 | 0.0281 | 0.205 |
| 0.65 | 294.0 | 0.1513 | 0.1796 |
| 0.65 | 306.0 | 0.0777 | 0.211 |
| 0.75 | 66.0 | 0.0795 | 0.2074 |
| 0.75 | 78.0 | -0.0019 | 0.1912 |
| 0.75 | 90.0 | 0.2318 | 0.261 |
| 0.75 | 114.0 | 0.0152 | 0.1625 |
| 0.75 | 126.0 | 0.046 | 0.1481 |
| 0.75 | 138.0 | 0.1409 | 0.1667 |
| 0.75 | 150.0 | 0.3328 | 0.2366 |
| 0.75 | 162.0 | 0.177 | 0.2218 |
| 0.75 | 186.0 | 0.2512 | 0.2099 |
| 0.75 | 198.0 | -0.202 | 0.1768 |
| 0.75 | 210.0 | -0.1476 | 0.1394 |
| 0.75 | 222.0 | 0.2646 | 0.1476 |
| 0.75 | 234.0 | -0.0648 | 0.1371 |
| 0.75 | 246.0 | 0.204 | 0.1602 |
| 0.75 | 258.0 | -0.028 | 0.2036 |
| 0.75 | 270.0 | -0.0802 | 0.2556 |
| 0.75 | 282.0 | 0.1126 | 0.1529 |
| 0.75 | 294.0 | 0.0502 | 0.174 |
| 0.85 | 90.0 | -0.0719 | 0.2245 |
| 0.85 | 102.0 | 0.0753 | 0.1901 |
| 0.85 | 114.0 | 0.0519 | 0.1943 |
| 0.85 | 126.0 | 0.1603 | 0.2132 |
| 0.85 | 138.0 | 0.154 | 0.2079 |
| 0.85 | 150.0 | 0.2407 | 0.2485 |
| 0.85 | 198.0 | -0.1607 | 0.2046 |
| 0.85 | 210.0 | -0.0257 | 0.1836 |
| 0.85 | 222.0 | 0.2061 | 0.1558 |
| 0.85 | 234.0 | 0.0194 | 0.1424 |
| 0.85 | 246.0 | 0.019 | 0.1627 |
| 0.85 | 258.0 | 0.2624 | 0.1687 |
| 0.85 | 270.0 | -0.188 | 0.2404 |
| 0.95 | 114.0 | -0.2398 | 0.2626 |
| 0.95 | 126.0 | 0.2407 | 0.2405 |
| 0.95 | 210.0 | -0.2047 | 0.2028 |
| 0.95 | 222.0 | 0.3255 | 0.2452 |
| 0.95 | 234.0 | -0.1247 | 0.1957 |
| 0.95 | 246.0 | 0.0389 | 0.2321 |
| 0.95 | 258.0 | -0.1419 | 0.2773 |
Experiment comment: