Measurement E151M3249
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1645 | |
| Q2: | 0.0707 GeV2 | |
| W: | 1415.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.939 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 54.0 | -0.0469 | 0.2417 |
| 0.25 | 66.0 | 0.0115 | 0.1413 |
| 0.25 | 282.0 | -0.0635 | 0.2491 |
| 0.25 | 294.0 | -0.0455 | 0.1556 |
| 0.35 | 66.0 | -0.1067 | 0.1703 |
| 0.35 | 78.0 | 0.144 | 0.2172 |
| 0.35 | 282.0 | -0.0969 | 0.1777 |
| 0.35 | 294.0 | -0.0196 | 0.1747 |
| 0.35 | 306.0 | 0.0877 | 0.2311 |
| 0.45 | 66.0 | 0.2474 | 0.1844 |
| 0.45 | 78.0 | 0.2453 | 0.1688 |
| 0.45 | 90.0 | -0.1703 | 0.205 |
| 0.45 | 102.0 | -0.0417 | 0.2675 |
| 0.45 | 270.0 | -0.1874 | 0.1935 |
| 0.45 | 282.0 | -0.1659 | 0.1431 |
| 0.45 | 294.0 | -0.0895 | 0.1612 |
| 0.45 | 306.0 | -0.151 | 0.2404 |
| 0.55 | 66.0 | 0.2525 | 0.2101 |
| 0.55 | 78.0 | -0.0264 | 0.2355 |
| 0.55 | 90.0 | -0.2291 | 0.2299 |
| 0.55 | 102.0 | -0.0142 | 0.197 |
| 0.55 | 114.0 | -0.0135 | 0.2181 |
| 0.55 | 126.0 | -0.092 | 0.2402 |
| 0.55 | 246.0 | -0.1862 | 0.2365 |
| 0.55 | 258.0 | -0.1568 | 0.2107 |
| 0.55 | 270.0 | -0.0979 | 0.1832 |
| 0.55 | 282.0 | -0.1344 | 0.1559 |
| 0.55 | 294.0 | 0.2015 | 0.2141 |
| 0.65 | 66.0 | 0.201 | 0.1936 |
| 0.65 | 78.0 | 0.3292 | 0.2116 |
| 0.65 | 90.0 | -0.3027 | 0.1869 |
| 0.65 | 102.0 | 0.2584 | 0.1769 |
| 0.65 | 114.0 | 0.0063 | 0.1414 |
| 0.65 | 126.0 | 0.1154 | 0.1875 |
| 0.65 | 138.0 | -0.2372 | 0.2004 |
| 0.65 | 150.0 | 0.3551 | 0.2609 |
| 0.65 | 210.0 | 0.3745 | 0.2415 |
| 0.65 | 222.0 | -0.1421 | 0.2331 |
| 0.65 | 234.0 | -0.3561 | 0.1668 |
| 0.65 | 246.0 | 0.0115 | 0.1616 |
| 0.65 | 258.0 | 0.4218 | 0.1887 |
| 0.65 | 270.0 | -0.401 | 0.1942 |
| 0.65 | 282.0 | 0.1815 | 0.179 |
| 0.65 | 294.0 | 0.178 | 0.2131 |
| 0.75 | 90.0 | -0.1064 | 0.2396 |
| 0.75 | 102.0 | 0.1558 | 0.1807 |
| 0.75 | 114.0 | 0.3727 | 0.1294 |
| 0.75 | 126.0 | 0.0454 | 0.1551 |
| 0.75 | 138.0 | 0.0857 | 0.1661 |
| 0.75 | 150.0 | -0.0106 | 0.2324 |
| 0.75 | 198.0 | -0.2965 | 0.2518 |
| 0.75 | 210.0 | -0.3472 | 0.1988 |
| 0.75 | 222.0 | -0.4097 | 0.1917 |
| 0.75 | 234.0 | 0.0446 | 0.1744 |
| 0.75 | 246.0 | 0.3123 | 0.1538 |
| 0.75 | 258.0 | -0.0749 | 0.1773 |
| 0.85 | 90.0 | 0.2243 | 0.2683 |
| 0.85 | 114.0 | -0.1717 | 0.2006 |
| 0.85 | 126.0 | 0.0665 | 0.1725 |
| 0.85 | 138.0 | -0.1755 | 0.1921 |
| 0.85 | 150.0 | 0.0989 | 0.2471 |
| 0.85 | 210.0 | -0.1124 | 0.2452 |
| 0.85 | 222.0 | 0.1062 | 0.1687 |
| 0.85 | 234.0 | 0.0439 | 0.2033 |
| 0.85 | 246.0 | -0.0531 | 0.1481 |
| 0.85 | 258.0 | -0.2927 | 0.1756 |
| 0.85 | 270.0 | 0.1961 | 0.2094 |
| 0.85 | 282.0 | 0.322 | 0.2371 |
| 0.95 | 210.0 | 0.269 | 0.2285 |
| 0.95 | 222.0 | -0.1307 | 0.2281 |
| 0.95 | 234.0 | -0.1591 | 0.2073 |
| 0.95 | 246.0 | -0.0529 | 0.1908 |
| 0.95 | 258.0 | 0.0736 | 0.2234 |
| 0.25 | 306.0 | 0.0983 | 0.2532 |
| 0.35 | 54.0 | 0.0936 | 0.2528 |
| 0.35 | 66.0 | 0.0615 | 0.1576 |
| 0.35 | 78.0 | 0.0405 | 0.1568 |
| 0.35 | 270.0 | -0.1928 | 0.2362 |
| 0.35 | 282.0 | -0.2187 | 0.1782 |
| 0.35 | 294.0 | -0.1448 | 0.1845 |
| 0.35 | 306.0 | 0.2765 | 0.2213 |
| 0.45 | 66.0 | -0.0375 | 0.1833 |
| 0.45 | 78.0 | -0.0708 | 0.1549 |
| 0.45 | 90.0 | -0.1617 | 0.2143 |
| 0.45 | 270.0 | 0.0393 | 0.1833 |
| 0.45 | 282.0 | -0.0304 | 0.1526 |
| 0.45 | 294.0 | 0.1464 | 0.1709 |
| 0.45 | 306.0 | 0.1847 | 0.2535 |
| 0.55 | 66.0 | 0.1142 | 0.2406 |
| 0.55 | 78.0 | -0.3273 | 0.1792 |
| 0.55 | 90.0 | 0.1794 | 0.1953 |
| 0.55 | 102.0 | 0.0211 | 0.1887 |
| 0.55 | 114.0 | -0.3797 | 0.1836 |
| 0.55 | 126.0 | -0.0802 | 0.186 |
| 0.55 | 246.0 | 0.2448 | 0.2252 |
| 0.55 | 258.0 | 0.0039 | 0.2052 |
| 0.55 | 270.0 | -0.0373 | 0.173 |
| 0.55 | 282.0 | -0.1507 | 0.1718 |
| 0.55 | 294.0 | -0.2201 | 0.2207 |
| 0.55 | 306.0 | -0.1199 | 0.2597 |
| 0.65 | 66.0 | 0.2534 | 0.2095 |
| 0.65 | 78.0 | -0.2658 | 0.24 |
| 0.65 | 90.0 | -0.3606 | 0.2055 |
| 0.65 | 102.0 | 0.2484 | 0.1578 |
| 0.65 | 114.0 | 0.0072 | 0.1692 |
| 0.65 | 126.0 | -0.3104 | 0.1615 |
| 0.65 | 138.0 | 0.0823 | 0.1992 |
| 0.65 | 150.0 | 0.1944 | 0.2476 |
| 0.65 | 210.0 | -0.3952 | 0.2436 |
| 0.65 | 222.0 | 0.2483 | 0.19 |
| 0.65 | 234.0 | 0.5106 | 0.1572 |
| 0.65 | 246.0 | 0.0132 | 0.1689 |
| 0.65 | 258.0 | -0.0998 | 0.1759 |
| 0.65 | 270.0 | -0.223 | 0.1803 |
| 0.65 | 282.0 | 0.0602 | 0.1862 |
| 0.65 | 294.0 | 0.0244 | 0.2177 |
| 0.75 | 78.0 | 0.2046 | 0.1879 |
| 0.75 | 102.0 | -0.0347 | 0.1455 |
| 0.75 | 114.0 | 0.0301 | 0.1485 |
| 0.75 | 126.0 | 0.3847 | 0.1452 |
| 0.75 | 138.0 | -0.095 | 0.1762 |
| 0.75 | 150.0 | -0.2206 | 0.2113 |
| 0.75 | 162.0 | 0.4649 | 0.2197 |
| 0.75 | 198.0 | -0.1242 | 0.2546 |
| 0.75 | 210.0 | 0.2534 | 0.1965 |
| 0.75 | 222.0 | -0.2024 | 0.1604 |
| 0.75 | 234.0 | 0.0089 | 0.1555 |
| 0.75 | 246.0 | 0.1103 | 0.1537 |
| 0.75 | 258.0 | -0.0221 | 0.1788 |
| 0.75 | 270.0 | 0.011 | 0.2066 |
| 0.75 | 282.0 | -0.4592 | 0.1932 |
| 0.75 | 294.0 | 0.3671 | 0.2411 |
| 0.85 | 90.0 | -0.2106 | 0.2569 |
| 0.85 | 102.0 | 0.24 | 0.2264 |
| 0.85 | 114.0 | 0.0838 | 0.1831 |
| 0.85 | 126.0 | -0.0446 | 0.1865 |
| 0.85 | 138.0 | -0.0943 | 0.1999 |
| 0.85 | 150.0 | -0.0057 | 0.2144 |
| 0.85 | 210.0 | -0.107 | 0.1841 |
| 0.85 | 222.0 | -0.2028 | 0.1761 |
| 0.85 | 234.0 | 0.0706 | 0.1458 |
| 0.85 | 246.0 | 0.0141 | 0.1498 |
| 0.85 | 258.0 | 0.2142 | 0.1612 |
| 0.85 | 270.0 | -0.1317 | 0.1662 |
| 0.85 | 282.0 | 0.1042 | 0.2527 |
| 0.95 | 102.0 | -0.0722 | 0.2441 |
| 0.95 | 210.0 | -0.1019 | 0.2581 |
| 0.95 | 222.0 | -0.0581 | 0.2068 |
| 0.95 | 234.0 | -0.1303 | 0.2073 |
| 0.95 | 246.0 | -0.2484 | 0.2053 |
| 0.95 | 258.0 | 0.1916 | 0.1887 |
Experiment comment: