Measurement E151M3263
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1418 | |
| Q2: | 0.0707 GeV2 | |
| W: | 1445.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9299 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 54.0 | 0.0697 | 0.1638 |
| 0.25 | 66.0 | -0.0098 | 0.1599 |
| 0.25 | 78.0 | 0.1961 | 0.1582 |
| 0.25 | 282.0 | 0.0114 | 0.2511 |
| 0.25 | 294.0 | 0.1173 | 0.1509 |
| 0.35 | 66.0 | 0.0768 | 0.109 |
| 0.35 | 78.0 | 0.033 | 0.1224 |
| 0.35 | 90.0 | -0.0127 | 0.1805 |
| 0.35 | 270.0 | -0.0089 | 0.2351 |
| 0.35 | 282.0 | -0.2678 | 0.1111 |
| 0.35 | 294.0 | 0.1252 | 0.1163 |
| 0.35 | 306.0 | 0.2149 | 0.169 |
| 0.45 | 66.0 | 0.1038 | 0.1278 |
| 0.45 | 78.0 | -0.0064 | 0.1118 |
| 0.45 | 90.0 | -0.126 | 0.1486 |
| 0.45 | 102.0 | -0.0854 | 0.2425 |
| 0.45 | 270.0 | 0.0914 | 0.1209 |
| 0.45 | 282.0 | 0.0388 | 0.1101 |
| 0.45 | 294.0 | 0.0823 | 0.1172 |
| 0.55 | 78.0 | 0.1153 | 0.1978 |
| 0.55 | 90.0 | 0.596 | 0.2246 |
| 0.55 | 102.0 | -0.1491 | 0.1991 |
| 0.55 | 114.0 | -0.2563 | 0.1974 |
| 0.55 | 126.0 | 0.236 | 0.1933 |
| 0.55 | 138.0 | 0.102 | 0.2651 |
| 0.55 | 234.0 | -0.2182 | 0.2524 |
| 0.55 | 258.0 | 0.1316 | 0.1647 |
| 0.55 | 270.0 | 0.1697 | 0.1819 |
| 0.55 | 282.0 | -0.1199 | 0.1617 |
| 0.55 | 294.0 | -0.0929 | 0.2212 |
| 0.65 | 66.0 | 0.0923 | 0.2146 |
| 0.65 | 78.0 | 0.2797 | 0.2178 |
| 0.65 | 90.0 | 0.396 | 0.1841 |
| 0.65 | 102.0 | 0.0009 | 0.1697 |
| 0.65 | 114.0 | 0.1098 | 0.1587 |
| 0.65 | 126.0 | -0.2786 | 0.1679 |
| 0.65 | 138.0 | -0.0623 | 0.22 |
| 0.65 | 150.0 | 0.2394 | 0.2685 |
| 0.65 | 210.0 | 0.0328 | 0.2544 |
| 0.65 | 222.0 | 0.0478 | 0.195 |
| 0.65 | 234.0 | -0.2017 | 0.1699 |
| 0.65 | 246.0 | -0.2615 | 0.1543 |
| 0.65 | 258.0 | -0.1334 | 0.1735 |
| 0.65 | 270.0 | 0.345 | 0.2246 |
| 0.65 | 282.0 | -0.334 | 0.2285 |
| 0.65 | 294.0 | -0.0277 | 0.1882 |
| 0.65 | 306.0 | -0.3693 | 0.2134 |
| 0.75 | 66.0 | 0.2407 | 0.2648 |
| 0.75 | 78.0 | 0.2469 | 0.2377 |
| 0.75 | 90.0 | -0.0226 | 0.2432 |
| 0.75 | 102.0 | 0.1024 | 0.1849 |
| 0.75 | 114.0 | 0.0996 | 0.1494 |
| 0.75 | 126.0 | 0.1024 | 0.1648 |
| 0.75 | 138.0 | 0.0929 | 0.1831 |
| 0.75 | 198.0 | 0.4959 | 0.1989 |
| 0.75 | 210.0 | 0.1412 | 0.2091 |
| 0.75 | 222.0 | 0.2002 | 0.1687 |
| 0.75 | 234.0 | -0.3106 | 0.1631 |
| 0.75 | 246.0 | -0.1708 | 0.1725 |
| 0.75 | 258.0 | 0.0146 | 0.1933 |
| 0.75 | 270.0 | -0.1889 | 0.2339 |
| 0.75 | 282.0 | -0.038 | 0.1984 |
| 0.75 | 294.0 | -0.2521 | 0.219 |
| 0.85 | 90.0 | 0.5808 | 0.1703 |
| 0.85 | 102.0 | -0.307 | 0.2363 |
| 0.85 | 114.0 | 0.2155 | 0.2064 |
| 0.85 | 126.0 | -0.0272 | 0.197 |
| 0.85 | 138.0 | 0.2243 | 0.1881 |
| 0.85 | 150.0 | -0.372 | 0.2264 |
| 0.85 | 210.0 | 0.2753 | 0.2282 |
| 0.85 | 222.0 | 0.1776 | 0.2153 |
| 0.85 | 234.0 | 0.3932 | 0.1621 |
| 0.85 | 246.0 | 0.291 | 0.1646 |
| 0.85 | 258.0 | 0.1203 | 0.2035 |
| 0.85 | 270.0 | -0.3396 | 0.1822 |
| 0.85 | 282.0 | 0.2446 | 0.2514 |
| 0.95 | 102.0 | 0.0752 | 0.2579 |
| 0.95 | 222.0 | -0.2989 | 0.2382 |
| 0.95 | 234.0 | 0.007 | 0.2096 |
| 0.95 | 246.0 | -0.0705 | 0.2043 |
| 0.95 | 258.0 | -0.4068 | 0.2179 |
| 0.45 | 306.0 | 0.1494 | 0.2255 |
| 0.55 | 66.0 | 0.0906 | 0.2013 |
| 0.55 | 78.0 | 0.1032 | 0.1802 |
| 0.55 | 90.0 | -0.2143 | 0.1938 |
| 0.55 | 102.0 | -0.0732 | 0.1996 |
| 0.55 | 114.0 | 0.3059 | 0.2049 |
| 0.55 | 126.0 | 0.155 | 0.2102 |
| 0.55 | 246.0 | 0.2417 | 0.2179 |
| 0.55 | 258.0 | -0.0863 | 0.1779 |
| 0.55 | 270.0 | 0.0204 | 0.1605 |
| 0.55 | 282.0 | -0.1617 | 0.1424 |
| 0.55 | 294.0 | -0.1997 | 0.1765 |
| 0.65 | 66.0 | 0.1441 | 0.1907 |
| 0.65 | 78.0 | 0.1052 | 0.2026 |
| 0.65 | 90.0 | -0.3862 | 0.1766 |
| 0.65 | 102.0 | 0.3677 | 0.1781 |
| 0.65 | 114.0 | 0.0913 | 0.1883 |
| 0.65 | 126.0 | 0.0634 | 0.1699 |
| 0.65 | 138.0 | 0.2247 | 0.1946 |
| 0.65 | 210.0 | 0.2318 | 0.2279 |
| 0.65 | 222.0 | 0.2747 | 0.1746 |
| 0.65 | 234.0 | 0.0251 | 0.1565 |
| 0.65 | 246.0 | 0.1142 | 0.1753 |
| 0.65 | 258.0 | -0.0465 | 0.164 |
| 0.65 | 270.0 | -0.0325 | 0.1553 |
| 0.65 | 282.0 | 0.1304 | 0.2056 |
| 0.65 | 294.0 | 0.2286 | 0.179 |
| 0.65 | 306.0 | -0.0879 | 0.2199 |
| 0.75 | 66.0 | 0.11 | 0.221 |
| 0.75 | 90.0 | -0.0613 | 0.2363 |
| 0.75 | 102.0 | 0.1402 | 0.1799 |
| 0.75 | 114.0 | -0.1722 | 0.176 |
| 0.75 | 126.0 | -0.0828 | 0.147 |
| 0.75 | 138.0 | -0.0917 | 0.1899 |
| 0.75 | 150.0 | 0.3634 | 0.2438 |
| 0.75 | 198.0 | -0.4595 | 0.207 |
| 0.75 | 210.0 | 0.0251 | 0.199 |
| 0.75 | 222.0 | 0.1105 | 0.1648 |
| 0.75 | 234.0 | -0.2384 | 0.1572 |
| 0.75 | 246.0 | 0.0852 | 0.1416 |
| 0.75 | 258.0 | 0.0637 | 0.1562 |
| 0.75 | 270.0 | -0.4694 | 0.1822 |
| 0.75 | 282.0 | -0.1124 | 0.2158 |
| 0.75 | 294.0 | -0.0 | 0.2118 |
| 0.85 | 90.0 | 0.1401 | 0.1971 |
| 0.85 | 102.0 | -0.1055 | 0.2022 |
| 0.85 | 114.0 | 0.0626 | 0.1871 |
| 0.85 | 126.0 | 0.3191 | 0.1668 |
| 0.85 | 138.0 | -0.0044 | 0.1735 |
| 0.85 | 150.0 | 0.282 | 0.2408 |
| 0.85 | 174.0 | -0.2323 | 0.2533 |
| 0.85 | 210.0 | -0.1314 | 0.2029 |
| 0.85 | 222.0 | 0.3093 | 0.1892 |
| 0.85 | 234.0 | 0.0613 | 0.1629 |
| 0.85 | 246.0 | -0.011 | 0.1578 |
| 0.85 | 258.0 | 0.4035 | 0.1607 |
| 0.85 | 270.0 | 0.2787 | 0.1948 |
| 0.95 | 102.0 | -0.124 | 0.2577 |
| 0.95 | 114.0 | 0.2143 | 0.2479 |
| 0.95 | 222.0 | 0.2465 | 0.2361 |
| 0.95 | 234.0 | 0.1284 | 0.2181 |
| 0.95 | 246.0 | -0.3222 | 0.1854 |
| 0.95 | 258.0 | 0.3616 | 0.2174 |
Experiment comment: