Measurement E151M3223
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.2616 | |
| Q2: | 0.0844 GeV2 | |
| W: | 1355.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9514 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 306.0 | 0.322 | 0.1605 |
| 0.25 | 66.0 | 0.1038 | 0.1445 |
| 0.25 | 78.0 | -0.3478 | 0.2426 |
| 0.25 | 294.0 | -0.2041 | 0.1313 |
| 0.25 | 306.0 | -0.1067 | 0.1531 |
| 0.35 | 66.0 | -0.0614 | 0.1116 |
| 0.35 | 78.0 | 0.4879 | 0.1166 |
| 0.35 | 282.0 | 0.2334 | 0.1474 |
| 0.35 | 294.0 | 0.421 | 0.1241 |
| 0.35 | 306.0 | 0.0606 | 0.1671 |
| 0.45 | 66.0 | -0.1512 | 0.114 |
| 0.45 | 78.0 | -0.0156 | 0.1105 |
| 0.45 | 90.0 | -0.2451 | 0.2029 |
| 0.45 | 282.0 | 0.0329 | 0.1398 |
| 0.45 | 294.0 | -0.0324 | 0.1261 |
| 0.55 | 66.0 | 0.1562 | 0.221 |
| 0.55 | 78.0 | 0.141 | 0.1796 |
| 0.55 | 90.0 | -0.0011 | 0.1744 |
| 0.55 | 102.0 | -0.1861 | 0.2314 |
| 0.55 | 270.0 | 0.0178 | 0.215 |
| 0.55 | 282.0 | -0.0103 | 0.1784 |
| 0.55 | 294.0 | -0.1131 | 0.2154 |
| 0.65 | 66.0 | -0.2959 | 0.2071 |
| 0.65 | 78.0 | 0.0003 | 0.2076 |
| 0.65 | 90.0 | 0.2697 | 0.2148 |
| 0.65 | 102.0 | 0.1646 | 0.1864 |
| 0.65 | 114.0 | -0.0281 | 0.1718 |
| 0.65 | 126.0 | 0.2552 | 0.2247 |
| 0.65 | 234.0 | -0.2699 | 0.2185 |
| 0.65 | 246.0 | 0.138 | 0.1648 |
| 0.65 | 258.0 | -0.1697 | 0.1555 |
| 0.65 | 270.0 | 0.3207 | 0.1726 |
| 0.65 | 282.0 | -0.2816 | 0.204 |
| 0.75 | 90.0 | -0.0704 | 0.193 |
| 0.75 | 102.0 | -0.1291 | 0.1647 |
| 0.75 | 114.0 | 0.0586 | 0.1456 |
| 0.75 | 126.0 | -0.1984 | 0.1767 |
| 0.75 | 138.0 | 0.0239 | 0.1877 |
| 0.75 | 222.0 | 0.1292 | 0.2174 |
| 0.75 | 234.0 | 0.273 | 0.1604 |
| 0.75 | 246.0 | -0.2378 | 0.1542 |
| 0.75 | 258.0 | -0.0338 | 0.1396 |
| 0.75 | 270.0 | 0.0306 | 0.1568 |
| 0.75 | 282.0 | -0.2017 | 0.2528 |
| 0.85 | 90.0 | 0.3313 | 0.2479 |
| 0.85 | 102.0 | 0.2652 | 0.1856 |
| 0.85 | 114.0 | 0.1741 | 0.1486 |
| 0.85 | 126.0 | 0.0226 | 0.1619 |
| 0.85 | 138.0 | -0.2614 | 0.1498 |
| 0.85 | 150.0 | 0.3183 | 0.1967 |
| 0.85 | 162.0 | -0.0664 | 0.1809 |
| 0.85 | 210.0 | -0.2534 | 0.2323 |
| 0.85 | 222.0 | -0.095 | 0.1729 |
| 0.85 | 234.0 | 0.0455 | 0.1772 |
| 0.85 | 246.0 | -0.4613 | 0.1442 |
| 0.85 | 258.0 | 0.1774 | 0.1462 |
| 0.85 | 270.0 | 0.0333 | 0.1382 |
| 0.85 | 282.0 | 0.002 | 0.1728 |
| 0.95 | 114.0 | 0.38 | 0.2252 |
| 0.95 | 126.0 | -0.1889 | 0.2019 |
| 0.95 | 138.0 | 0.2577 | 0.2138 |
| 0.95 | 198.0 | 0.0917 | 0.2602 |
| 0.95 | 210.0 | 0.0821 | 0.2261 |
| 0.95 | 222.0 | -0.1377 | 0.2511 |
| 0.95 | 234.0 | 0.3167 | 0.1687 |
| 0.95 | 246.0 | -0.2544 | 0.1977 |
| 0.95 | 258.0 | -0.4471 | 0.1537 |
| 0.95 | 270.0 | 0.1057 | 0.1834 |
| 0.45 | 306.0 | -0.0387 | 0.2337 |
| 0.55 | 66.0 | 0.2242 | 0.1954 |
| 0.55 | 78.0 | -0.0679 | 0.1862 |
| 0.55 | 90.0 | -0.1646 | 0.2236 |
| 0.55 | 270.0 | 0.0372 | 0.2048 |
| 0.55 | 282.0 | 0.1169 | 0.1821 |
| 0.55 | 294.0 | -0.2824 | 0.2161 |
| 0.65 | 66.0 | -0.2366 | 0.2204 |
| 0.65 | 78.0 | -0.0929 | 0.2096 |
| 0.65 | 90.0 | -0.2129 | 0.2156 |
| 0.65 | 102.0 | 0.2632 | 0.2044 |
| 0.65 | 114.0 | 0.1006 | 0.2089 |
| 0.65 | 126.0 | 0.1744 | 0.189 |
| 0.65 | 234.0 | -0.3978 | 0.2252 |
| 0.65 | 246.0 | -0.3812 | 0.1798 |
| 0.65 | 258.0 | 0.1252 | 0.1828 |
| 0.65 | 270.0 | 0.1644 | 0.1778 |
| 0.65 | 282.0 | -0.0988 | 0.2212 |
| 0.75 | 90.0 | 0.113 | 0.2213 |
| 0.75 | 102.0 | -0.0104 | 0.1764 |
| 0.75 | 114.0 | -0.22 | 0.1586 |
| 0.75 | 126.0 | 0.2063 | 0.1859 |
| 0.75 | 138.0 | -0.1851 | 0.1904 |
| 0.75 | 150.0 | 0.2439 | 0.2288 |
| 0.75 | 222.0 | -0.0547 | 0.1907 |
| 0.75 | 234.0 | 0.0701 | 0.1893 |
| 0.75 | 246.0 | 0.0404 | 0.1644 |
| 0.75 | 258.0 | -0.0218 | 0.1402 |
| 0.75 | 270.0 | -0.0153 | 0.1881 |
| 0.75 | 282.0 | 0.2817 | 0.2333 |
| 0.85 | 102.0 | -0.4424 | 0.1802 |
| 0.85 | 114.0 | 0.0808 | 0.1531 |
| 0.85 | 126.0 | 0.4119 | 0.1479 |
| 0.85 | 138.0 | -0.3162 | 0.176 |
| 0.85 | 150.0 | 0.1975 | 0.1959 |
| 0.85 | 210.0 | -0.0272 | 0.2186 |
| 0.85 | 222.0 | 0.157 | 0.199 |
| 0.85 | 234.0 | 0.0131 | 0.147 |
| 0.85 | 246.0 | 0.2396 | 0.139 |
| 0.85 | 258.0 | -0.3589 | 0.1423 |
| 0.85 | 270.0 | -0.1662 | 0.1591 |
| 0.85 | 282.0 | 0.1637 | 0.1749 |
| 0.95 | 126.0 | -0.0436 | 0.2121 |
| 0.95 | 138.0 | 0.2647 | 0.0303 |
| 0.95 | 174.0 | 0.1066 | 0.2635 |
| 0.95 | 222.0 | -0.0019 | 0.2169 |
| 0.95 | 234.0 | -0.4676 | 0.2361 |
| 0.95 | 246.0 | 0.0356 | 0.2253 |
| 0.95 | 258.0 | 0.0117 | 0.2166 |
| 0.95 | 270.0 | -0.4171 | 0.2382 |
Experiment comment: