Measurement E151M3197
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.3199 | |
| Q2: | 0.0707 GeV2 | |
| W: | 1295.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.966 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 306.0 | 0.2289 | 0.1585 |
| 0.25 | 66.0 | -0.071 | 0.1398 |
| 0.25 | 78.0 | 0.2522 | 0.224 |
| 0.25 | 294.0 | -0.0474 | 0.1382 |
| 0.25 | 306.0 | 0.0973 | 0.1469 |
| 0.35 | 66.0 | 0.0931 | 0.1156 |
| 0.35 | 78.0 | 0.2021 | 0.1115 |
| 0.35 | 282.0 | -0.3909 | 0.2303 |
| 0.35 | 294.0 | -0.0497 | 0.1202 |
| 0.35 | 306.0 | -0.071 | 0.1362 |
| 0.45 | 66.0 | 0.2142 | 0.115 |
| 0.45 | 78.0 | -0.0417 | 0.1047 |
| 0.45 | 90.0 | -0.0964 | 0.1594 |
| 0.45 | 282.0 | -0.0019 | 0.1498 |
| 0.45 | 294.0 | -0.072 | 0.1379 |
| 0.55 | 66.0 | -0.0007 | 0.2185 |
| 0.55 | 78.0 | -0.0817 | 0.1483 |
| 0.55 | 90.0 | 0.1344 | 0.1993 |
| 0.55 | 270.0 | 0.0753 | 0.1955 |
| 0.55 | 282.0 | -0.5158 | 0.1767 |
| 0.55 | 294.0 | 0.0143 | 0.2455 |
| 0.65 | 78.0 | 0.192 | 0.1889 |
| 0.65 | 90.0 | -0.1706 | 0.2043 |
| 0.65 | 102.0 | 0.1649 | 0.1953 |
| 0.65 | 114.0 | 0.158 | 0.2101 |
| 0.65 | 246.0 | 0.0053 | 0.1892 |
| 0.65 | 258.0 | 0.2246 | 0.1694 |
| 0.65 | 270.0 | -0.1205 | 0.1698 |
| 0.65 | 282.0 | -0.0379 | 0.1967 |
| 0.75 | 90.0 | 0.4469 | 0.1925 |
| 0.75 | 102.0 | 0.2208 | 0.1653 |
| 0.75 | 114.0 | 0.2515 | 0.154 |
| 0.75 | 126.0 | -0.0296 | 0.1545 |
| 0.75 | 138.0 | 0.2553 | 0.1816 |
| 0.75 | 222.0 | -0.4539 | 0.2216 |
| 0.75 | 234.0 | -0.1822 | 0.1666 |
| 0.75 | 246.0 | 0.0859 | 0.1378 |
| 0.75 | 258.0 | 0.0522 | 0.145 |
| 0.75 | 270.0 | -0.0543 | 0.1498 |
| 0.75 | 282.0 | -0.0005 | 0.21 |
| 0.85 | 102.0 | -0.0427 | 0.1512 |
| 0.85 | 114.0 | 0.0726 | 0.1365 |
| 0.85 | 126.0 | 0.0101 | 0.1518 |
| 0.85 | 138.0 | 0.131 | 0.1522 |
| 0.85 | 150.0 | 0.1978 | 0.1863 |
| 0.85 | 162.0 | -0.0444 | 0.2065 |
| 0.85 | 210.0 | 0.1386 | 0.2125 |
| 0.85 | 222.0 | 0.1666 | 0.1668 |
| 0.85 | 234.0 | 0.2034 | 0.1643 |
| 0.85 | 246.0 | 0.0673 | 0.1343 |
| 0.85 | 258.0 | -0.0681 | 0.1285 |
| 0.85 | 270.0 | -0.1833 | 0.1478 |
| 0.85 | 282.0 | -0.2738 | 0.2438 |
| 0.95 | 114.0 | 0.4299 | 0.2278 |
| 0.95 | 126.0 | -0.0249 | 0.2021 |
| 0.95 | 138.0 | 0.1404 | 0.2052 |
| 0.95 | 150.0 | 0.1741 | 0.2016 |
| 0.95 | 162.0 | 0.0431 | 0.2157 |
| 0.95 | 174.0 | 0.2984 | 0.2232 |
| 0.95 | 186.0 | -0.1239 | 0.2579 |
| 0.95 | 210.0 | 0.1017 | 0.2275 |
| 0.95 | 222.0 | -0.3558 | 0.2073 |
| 0.95 | 234.0 | -0.0824 | 0.1975 |
| 0.95 | 246.0 | -0.2782 | 0.1927 |
| 0.95 | 258.0 | -0.1331 | 0.2275 |
| 0.95 | 270.0 | -0.145 | 0.2459 |
| 0.45 | 306.0 | 0.1157 | 0.2365 |
| 0.55 | 66.0 | -0.4118 | 0.2392 |
| 0.55 | 78.0 | -0.172 | 0.1766 |
| 0.55 | 90.0 | 0.2117 | 0.2027 |
| 0.55 | 270.0 | 0.1268 | 0.2244 |
| 0.55 | 282.0 | -0.4114 | 0.2034 |
| 0.55 | 294.0 | 0.0874 | 0.2221 |
| 0.65 | 78.0 | 0.0311 | 0.1834 |
| 0.65 | 90.0 | 0.1901 | 0.234 |
| 0.65 | 102.0 | 0.0622 | 0.2408 |
| 0.65 | 114.0 | -0.239 | 0.2299 |
| 0.65 | 246.0 | 0.3326 | 0.2021 |
| 0.65 | 258.0 | -0.1167 | 0.1619 |
| 0.65 | 270.0 | -0.1633 | 0.1769 |
| 0.65 | 282.0 | -0.1693 | 0.2066 |
| 0.75 | 102.0 | -0.0361 | 0.1749 |
| 0.75 | 114.0 | 0.1253 | 0.1501 |
| 0.75 | 126.0 | -0.1573 | 0.1594 |
| 0.75 | 138.0 | -0.1721 | 0.2496 |
| 0.75 | 234.0 | 0.121 | 0.1966 |
| 0.75 | 246.0 | -0.2364 | 0.1882 |
| 0.75 | 258.0 | -0.0111 | 0.1533 |
| 0.75 | 270.0 | -0.0147 | 0.1825 |
| 0.75 | 282.0 | -0.1388 | 0.2172 |
| 0.85 | 102.0 | 0.3 | 0.1779 |
| 0.85 | 114.0 | 0.4482 | 0.1522 |
| 0.85 | 126.0 | 0.0511 | 0.1557 |
| 0.85 | 138.0 | -0.127 | 0.1564 |
| 0.85 | 150.0 | -0.0858 | 0.2022 |
| 0.85 | 162.0 | -0.0974 | 0.2011 |
| 0.85 | 186.0 | -0.1514 | 0.2463 |
| 0.85 | 210.0 | 0.6492 | 0.1908 |
| 0.85 | 222.0 | -0.4064 | 0.2047 |
| 0.85 | 234.0 | 0.0504 | 0.1907 |
| 0.85 | 246.0 | -0.1687 | 0.1488 |
| 0.85 | 258.0 | -0.1204 | 0.1335 |
| 0.85 | 270.0 | -0.1773 | 0.1731 |
| 0.95 | 114.0 | -0.1754 | 0.2325 |
| 0.95 | 126.0 | 0.0689 | 0.1976 |
| 0.95 | 138.0 | 0.0087 | 0.2111 |
| 0.95 | 150.0 | 0.4551 | 0.2237 |
| 0.95 | 186.0 | 0.2523 | 0.0306 |
| 0.95 | 198.0 | -0.0263 | 0.2556 |
| 0.95 | 222.0 | -0.0259 | 0.23 |
| 0.95 | 234.0 | 0.106 | 0.2109 |
| 0.95 | 246.0 | -0.1764 | 0.2168 |
| 0.95 | 258.0 | -0.0282 | 0.237 |
Experiment comment: