Measurement E151M3277
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1228 | |
| Q2: | 0.0707 GeV2 | |
| W: | 1475.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9198 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 66.0 | -0.0349 | 0.2029 |
| 0.25 | 78.0 | -0.4404 | 0.218 |
| 0.25 | 282.0 | 0.02 | 0.2449 |
| 0.25 | 294.0 | 0.4042 | 0.2326 |
| 0.35 | 66.0 | 0.1278 | 0.1907 |
| 0.35 | 78.0 | -0.0192 | 0.1891 |
| 0.35 | 90.0 | 0.0669 | 0.2455 |
| 0.35 | 270.0 | 0.3237 | 0.2073 |
| 0.35 | 282.0 | -0.1268 | 0.1834 |
| 0.35 | 294.0 | -0.1537 | 0.1798 |
| 0.45 | 66.0 | 0.5766 | 0.1574 |
| 0.45 | 78.0 | 0.0386 | 0.1601 |
| 0.45 | 90.0 | -0.1077 | 0.2143 |
| 0.45 | 102.0 | -0.0984 | 0.2099 |
| 0.45 | 258.0 | -0.2184 | 0.2309 |
| 0.45 | 270.0 | -0.4187 | 0.1771 |
| 0.45 | 282.0 | 0.3678 | 0.1465 |
| 0.45 | 294.0 | -0.0764 | 0.192 |
| 0.55 | 78.0 | -0.1024 | 0.1778 |
| 0.55 | 90.0 | -0.117 | 0.2014 |
| 0.55 | 102.0 | -0.0786 | 0.2046 |
| 0.55 | 114.0 | 0.0174 | 0.187 |
| 0.55 | 126.0 | -0.2934 | 0.1612 |
| 0.55 | 234.0 | 0.0 | 0.2629 |
| 0.55 | 246.0 | 0.1853 | 0.262 |
| 0.55 | 258.0 | -0.2735 | 0.1756 |
| 0.55 | 270.0 | 0.1088 | 0.1679 |
| 0.55 | 282.0 | -0.2151 | 0.1811 |
| 0.55 | 294.0 | 0.046 | 0.2009 |
| 0.65 | 78.0 | -0.071 | 0.2241 |
| 0.65 | 90.0 | -0.0823 | 0.2079 |
| 0.65 | 102.0 | 0.4649 | 0.2095 |
| 0.65 | 114.0 | 0.0664 | 0.1912 |
| 0.65 | 126.0 | -0.0131 | 0.1581 |
| 0.65 | 138.0 | -0.1467 | 0.1809 |
| 0.65 | 150.0 | -0.3226 | 0.2155 |
| 0.65 | 210.0 | 0.3201 | 0.1961 |
| 0.65 | 222.0 | 0.2449 | 0.172 |
| 0.65 | 234.0 | -0.214 | 0.1475 |
| 0.65 | 246.0 | 0.1741 | 0.185 |
| 0.65 | 258.0 | 0.1642 | 0.1722 |
| 0.65 | 270.0 | -0.1599 | 0.1857 |
| 0.65 | 294.0 | 0.1073 | 0.2136 |
| 0.65 | 306.0 | -0.0898 | 0.246 |
| 0.75 | 78.0 | -0.1026 | 0.2363 |
| 0.75 | 102.0 | -0.2844 | 0.2023 |
| 0.75 | 114.0 | 0.3984 | 0.1622 |
| 0.75 | 126.0 | 0.2055 | 0.1705 |
| 0.75 | 138.0 | 0.0318 | 0.1728 |
| 0.75 | 150.0 | 0.8249 | 0.1475 |
| 0.75 | 198.0 | -0.4609 | 0.2047 |
| 0.75 | 210.0 | 0.0608 | 0.1947 |
| 0.75 | 222.0 | -0.085 | 0.1938 |
| 0.75 | 234.0 | 0.1311 | 0.1732 |
| 0.75 | 246.0 | -0.131 | 0.1671 |
| 0.75 | 258.0 | 0.0801 | 0.1888 |
| 0.75 | 282.0 | -0.3394 | 0.201 |
| 0.75 | 294.0 | 0.2159 | 0.2203 |
| 0.85 | 90.0 | 0.0604 | 0.1929 |
| 0.85 | 102.0 | 0.4585 | 0.2216 |
| 0.85 | 114.0 | 0.3135 | 0.2146 |
| 0.85 | 126.0 | 0.0378 | 0.2166 |
| 0.85 | 138.0 | -0.2651 | 0.209 |
| 0.85 | 222.0 | -0.0628 | 0.1735 |
| 0.85 | 234.0 | -0.0568 | 0.1714 |
| 0.85 | 246.0 | -0.1805 | 0.1708 |
| 0.85 | 258.0 | 0.0376 | 0.1871 |
| 0.85 | 270.0 | -0.3963 | 0.1914 |
| 0.95 | 222.0 | -0.1971 | 0.2458 |
| 0.95 | 234.0 | 0.3204 | 0.2269 |
| 0.95 | 246.0 | -0.2356 | 0.2108 |
| 0.95 | 258.0 | 0.0444 | 0.2592 |
| 0.15 | 66.0 | 0.1162 | 0.2526 |
| 0.25 | 54.0 | -0.1294 | 0.2377 |
| 0.25 | 66.0 | 0.0649 | 0.2222 |
| 0.25 | 78.0 | 0.2593 | 0.2121 |
| 0.25 | 282.0 | -0.4533 | 0.2055 |
| 0.25 | 294.0 | -0.4122 | 0.1949 |
| 0.25 | 306.0 | -0.0033 | 0.2193 |
| 0.35 | 66.0 | -0.1669 | 0.1604 |
| 0.35 | 78.0 | 0.1149 | 0.1601 |
| 0.35 | 90.0 | 0.5657 | 0.2034 |
| 0.35 | 270.0 | 0.0113 | 0.1935 |
| 0.35 | 282.0 | -0.1079 | 0.165 |
| 0.35 | 294.0 | 0.0063 | 0.1728 |
| 0.35 | 306.0 | -0.2667 | 0.2406 |
| 0.45 | 66.0 | -0.2049 | 0.163 |
| 0.45 | 78.0 | 0.0259 | 0.156 |
| 0.45 | 90.0 | -0.0424 | 0.1997 |
| 0.45 | 102.0 | 0.1125 | 0.2504 |
| 0.45 | 270.0 | -0.4371 | 0.1482 |
| 0.45 | 282.0 | -0.063 | 0.1451 |
| 0.45 | 294.0 | 0.2331 | 0.1461 |
| 0.55 | 66.0 | 0.1038 | 0.2458 |
| 0.55 | 78.0 | 0.2978 | 0.1816 |
| 0.55 | 90.0 | -0.1935 | 0.2144 |
| 0.55 | 102.0 | -0.1582 | 0.1759 |
| 0.55 | 114.0 | 0.1293 | 0.1901 |
| 0.55 | 126.0 | 0.1327 | 0.1707 |
| 0.55 | 222.0 | -0.1933 | 0.2561 |
| 0.55 | 234.0 | 0.3784 | 0.2381 |
| 0.55 | 246.0 | -0.6615 | 0.1875 |
| 0.55 | 258.0 | -0.0177 | 0.1641 |
| 0.55 | 270.0 | -0.2189 | 0.1577 |
| 0.55 | 282.0 | 0.1837 | 0.1585 |
| 0.55 | 294.0 | -0.1683 | 0.2246 |
| 0.65 | 66.0 | -0.1913 | 0.2286 |
| 0.65 | 78.0 | 0.0805 | 0.2125 |
| 0.65 | 90.0 | -0.245 | 0.215 |
| 0.65 | 102.0 | -0.0043 | 0.1984 |
| 0.65 | 114.0 | 0.2765 | 0.1483 |
| 0.65 | 126.0 | 0.1565 | 0.1573 |
| 0.65 | 138.0 | 0.0603 | 0.2037 |
| 0.65 | 198.0 | -0.3074 | 0.2362 |
| 0.65 | 210.0 | -0.0389 | 0.2388 |
| 0.65 | 222.0 | 0.2481 | 0.1621 |
| 0.65 | 234.0 | 0.2552 | 0.1647 |
| 0.65 | 246.0 | -0.1728 | 0.1527 |
| 0.65 | 258.0 | -0.0801 | 0.1835 |
| 0.65 | 270.0 | -0.1526 | 0.1931 |
| 0.65 | 282.0 | -0.125 | 0.2163 |
| 0.65 | 294.0 | -0.2749 | 0.1973 |
| 0.65 | 306.0 | 0.1813 | 0.208 |
| 0.75 | 66.0 | -0.0245 | 0.2426 |
| 0.75 | 78.0 | 0.0737 | 0.2285 |
| 0.75 | 102.0 | 0.1605 | 0.1914 |
| 0.75 | 114.0 | -0.0892 | 0.1402 |
| 0.75 | 126.0 | 0.1412 | 0.1493 |
| 0.75 | 138.0 | -0.1496 | 0.1857 |
| 0.75 | 150.0 | -0.2165 | 0.2238 |
| 0.75 | 186.0 | -0.3275 | 0.2393 |
| 0.75 | 198.0 | 0.6604 | 0.2021 |
| 0.75 | 210.0 | 0.2671 | 0.1828 |
| 0.75 | 222.0 | 0.0123 | 0.1443 |
| 0.75 | 234.0 | 0.0336 | 0.1579 |
| 0.75 | 246.0 | 0.0629 | 0.1692 |
| 0.75 | 258.0 | 0.2 | 0.1738 |
| 0.75 | 270.0 | 0.0087 | 0.2235 |
| 0.75 | 282.0 | -0.3418 | 0.1671 |
| 0.75 | 294.0 | -0.1471 | 0.1869 |
| 0.85 | 90.0 | 0.5552 | 0.1945 |
| 0.85 | 102.0 | 0.1797 | 0.1993 |
| 0.85 | 114.0 | 0.1318 | 0.21 |
| 0.85 | 126.0 | 0.2339 | 0.1656 |
| 0.85 | 138.0 | -0.2438 | 0.2069 |
| 0.85 | 150.0 | 0.22 | 0.2511 |
| 0.85 | 198.0 | -0.2127 | 0.2436 |
| 0.85 | 210.0 | -0.0716 | 0.2009 |
| 0.85 | 222.0 | -0.0546 | 0.1601 |
| 0.85 | 234.0 | -0.1066 | 0.1657 |
| 0.85 | 246.0 | -0.1709 | 0.1499 |
| 0.85 | 258.0 | 0.2662 | 0.1895 |
| 0.85 | 270.0 | -0.1242 | 0.1911 |
| 0.95 | 114.0 | 0.0015 | 0.2219 |
| 0.95 | 234.0 | -0.1468 | 0.2242 |
| 0.95 | 246.0 | -0.075 | 0.2163 |
| 0.95 | 258.0 | 0.2442 | 0.2441 |
Experiment comment: