Measurement E151M3262
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1213 | |
| Q2: | 0.0593 GeV2 | |
| W: | 1445.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9327 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 54.0 | 0.0719 | 0.1582 |
| 0.25 | 66.0 | -0.26 | 0.1239 |
| 0.25 | 78.0 | -0.0642 | 0.1494 |
| 0.25 | 282.0 | 0.1314 | 0.1738 |
| 0.25 | 294.0 | 0.0669 | 0.1381 |
| 0.35 | 66.0 | -0.0311 | 0.1191 |
| 0.35 | 78.0 | -0.027 | 0.1256 |
| 0.35 | 90.0 | 0.2189 | 0.209 |
| 0.35 | 270.0 | 0.2788 | 0.1391 |
| 0.35 | 282.0 | 0.1693 | 0.1225 |
| 0.35 | 294.0 | -0.0302 | 0.118 |
| 0.35 | 306.0 | -0.0025 | 0.1735 |
| 0.45 | 66.0 | 0.0659 | 0.1275 |
| 0.45 | 78.0 | -0.014 | 0.1098 |
| 0.45 | 90.0 | 0.0687 | 0.1328 |
| 0.45 | 114.0 | 0.3362 | 0.191 |
| 0.45 | 258.0 | -0.2271 | 0.1686 |
| 0.45 | 270.0 | -0.0238 | 0.1184 |
| 0.45 | 282.0 | 0.0618 | 0.1028 |
| 0.45 | 294.0 | 0.0368 | 0.1153 |
| 0.55 | 66.0 | 0.2482 | 0.1969 |
| 0.55 | 78.0 | -0.2509 | 0.1749 |
| 0.55 | 90.0 | -0.4902 | 0.1794 |
| 0.55 | 102.0 | -0.3419 | 0.1981 |
| 0.55 | 114.0 | -0.034 | 0.1929 |
| 0.55 | 126.0 | 0.0222 | 0.2112 |
| 0.55 | 234.0 | -0.1332 | 0.2537 |
| 0.55 | 246.0 | -0.1768 | 0.2406 |
| 0.55 | 258.0 | -0.466 | 0.1789 |
| 0.55 | 270.0 | 0.0936 | 0.1701 |
| 0.55 | 282.0 | 0.0511 | 0.1532 |
| 0.55 | 294.0 | 0.1177 | 0.2117 |
| 0.65 | 66.0 | -0.0201 | 0.1992 |
| 0.65 | 78.0 | -0.0112 | 0.2059 |
| 0.65 | 90.0 | -0.3312 | 0.1943 |
| 0.65 | 102.0 | -0.1412 | 0.2081 |
| 0.65 | 114.0 | 0.0724 | 0.169 |
| 0.65 | 126.0 | 0.0376 | 0.1577 |
| 0.65 | 138.0 | 0.0348 | 0.2116 |
| 0.65 | 150.0 | 0.2118 | 0.234 |
| 0.65 | 210.0 | 0.2211 | 0.2438 |
| 0.65 | 222.0 | -0.05 | 0.1721 |
| 0.65 | 234.0 | 0.0165 | 0.1856 |
| 0.65 | 246.0 | -0.0423 | 0.1975 |
| 0.65 | 258.0 | 0.2858 | 0.1787 |
| 0.65 | 270.0 | -0.0615 | 0.1831 |
| 0.65 | 282.0 | -0.1998 | 0.1929 |
| 0.65 | 294.0 | -0.5931 | 0.1756 |
| 0.65 | 306.0 | -0.3603 | 0.2278 |
| 0.75 | 66.0 | 0.2434 | 0.2252 |
| 0.75 | 78.0 | 0.2905 | 0.2329 |
| 0.75 | 90.0 | -0.1266 | 0.2521 |
| 0.75 | 102.0 | -0.0194 | 0.1786 |
| 0.75 | 114.0 | -0.1958 | 0.1481 |
| 0.75 | 126.0 | 0.4196 | 0.1383 |
| 0.75 | 138.0 | -0.0251 | 0.1731 |
| 0.75 | 150.0 | -0.3369 | 0.1786 |
| 0.75 | 210.0 | -0.1099 | 0.192 |
| 0.75 | 222.0 | -0.3359 | 0.1563 |
| 0.75 | 234.0 | 0.2126 | 0.1392 |
| 0.75 | 246.0 | -0.3201 | 0.1778 |
| 0.75 | 258.0 | 0.1068 | 0.1934 |
| 0.75 | 282.0 | -0.4975 | 0.1676 |
| 0.75 | 294.0 | -0.3805 | 0.2343 |
| 0.85 | 90.0 | 0.1009 | 0.2403 |
| 0.85 | 102.0 | -0.1227 | 0.2199 |
| 0.85 | 114.0 | -0.2153 | 0.2207 |
| 0.85 | 126.0 | 0.0537 | 0.2113 |
| 0.85 | 138.0 | -0.1331 | 0.2273 |
| 0.85 | 150.0 | -0.5235 | 0.2223 |
| 0.85 | 198.0 | 0.0547 | 0.2377 |
| 0.85 | 210.0 | 0.4022 | 0.1921 |
| 0.85 | 222.0 | 0.0071 | 0.1758 |
| 0.85 | 234.0 | -0.0766 | 0.1763 |
| 0.85 | 246.0 | -0.0353 | 0.1616 |
| 0.85 | 258.0 | -0.456 | 0.183 |
| 0.85 | 270.0 | -0.0765 | 0.2194 |
| 0.95 | 222.0 | 0.0555 | 0.2375 |
| 0.95 | 234.0 | -0.0146 | 0.2097 |
| 0.95 | 246.0 | 0.1865 | 0.216 |
| 0.45 | 306.0 | 0.0092 | 0.2375 |
| 0.55 | 66.0 | -0.131 | 0.2313 |
| 0.55 | 78.0 | 0.0348 | 0.1722 |
| 0.55 | 90.0 | -0.0611 | 0.18 |
| 0.55 | 102.0 | -0.27 | 0.1996 |
| 0.55 | 114.0 | -0.2609 | 0.1652 |
| 0.55 | 126.0 | 0.2687 | 0.1694 |
| 0.55 | 222.0 | -0.5447 | 0.229 |
| 0.55 | 234.0 | -0.0741 | 0.2297 |
| 0.55 | 246.0 | -0.4421 | 0.1947 |
| 0.55 | 258.0 | 0.312 | 0.2002 |
| 0.55 | 270.0 | 0.1577 | 0.1895 |
| 0.55 | 282.0 | 0.0597 | 0.1366 |
| 0.55 | 294.0 | -0.0247 | 0.2037 |
| 0.65 | 66.0 | 0.1984 | 0.2109 |
| 0.65 | 78.0 | -0.2775 | 0.1866 |
| 0.65 | 90.0 | 0.014 | 0.2348 |
| 0.65 | 102.0 | -0.1654 | 0.201 |
| 0.65 | 114.0 | -0.469 | 0.1613 |
| 0.65 | 126.0 | 0.1034 | 0.1413 |
| 0.65 | 138.0 | -0.0549 | 0.1585 |
| 0.65 | 150.0 | 0.2723 | 0.2102 |
| 0.65 | 210.0 | 0.3756 | 0.2353 |
| 0.65 | 222.0 | -0.2075 | 0.1738 |
| 0.65 | 234.0 | 0.1418 | 0.167 |
| 0.65 | 246.0 | -0.1392 | 0.1855 |
| 0.65 | 258.0 | 0.204 | 0.1723 |
| 0.65 | 270.0 | -0.1745 | 0.1613 |
| 0.65 | 282.0 | -0.3081 | 0.2024 |
| 0.65 | 294.0 | 0.3047 | 0.1766 |
| 0.75 | 102.0 | 0.1248 | 0.1577 |
| 0.75 | 114.0 | 0.018 | 0.1541 |
| 0.75 | 126.0 | 0.0022 | 0.1672 |
| 0.75 | 138.0 | 0.1244 | 0.1951 |
| 0.75 | 150.0 | 0.1539 | 0.2433 |
| 0.75 | 198.0 | -0.1742 | 0.2214 |
| 0.75 | 210.0 | -0.06 | 0.1763 |
| 0.75 | 222.0 | -0.0771 | 0.176 |
| 0.75 | 234.0 | 0.0844 | 0.145 |
| 0.75 | 246.0 | 0.055 | 0.1596 |
| 0.75 | 258.0 | -0.0301 | 0.1833 |
| 0.75 | 270.0 | 0.027 | 0.2442 |
| 0.75 | 282.0 | -0.1161 | 0.2051 |
| 0.75 | 294.0 | 0.0985 | 0.1938 |
| 0.85 | 90.0 | -0.0742 | 0.2116 |
| 0.85 | 102.0 | -0.2705 | 0.2154 |
| 0.85 | 114.0 | -0.0804 | 0.1917 |
| 0.85 | 126.0 | -0.0407 | 0.1742 |
| 0.85 | 138.0 | 0.0733 | 0.2089 |
| 0.85 | 198.0 | -0.0288 | 0.2512 |
| 0.85 | 222.0 | -0.0812 | 0.1709 |
| 0.85 | 234.0 | -0.0028 | 0.1505 |
| 0.85 | 246.0 | 0.0757 | 0.1635 |
| 0.85 | 258.0 | -0.1117 | 0.1856 |
| 0.85 | 270.0 | 0.1584 | 0.232 |
| 0.95 | 222.0 | -0.2766 | 0.1894 |
| 0.95 | 234.0 | 0.1627 | 0.1932 |
| 0.95 | 246.0 | -0.1017 | 0.1966 |
| 0.95 | 258.0 | -0.3072 | 0.2091 |
Experiment comment: