Measurement E151M3250
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1913 | |
| Q2: | 0.0844 GeV2 | |
| W: | 1415.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9359 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 66.0 | 0.2925 | 0.181 |
| 0.25 | 294.0 | -0.0102 | 0.1812 |
| 0.25 | 306.0 | 0.1888 | 0.2437 |
| 0.35 | 66.0 | 0.0969 | 0.1941 |
| 0.35 | 78.0 | 0.1134 | 0.1739 |
| 0.35 | 90.0 | 0.1372 | 0.2489 |
| 0.35 | 282.0 | 0.1142 | 0.1673 |
| 0.35 | 294.0 | 0.1757 | 0.1915 |
| 0.35 | 306.0 | 0.1775 | 0.2204 |
| 0.45 | 66.0 | -0.1738 | 0.1709 |
| 0.45 | 78.0 | 0.0214 | 0.1999 |
| 0.45 | 90.0 | 0.1315 | 0.2234 |
| 0.45 | 270.0 | 0.124 | 0.2074 |
| 0.45 | 282.0 | 0.2509 | 0.1478 |
| 0.45 | 294.0 | -0.1491 | 0.1615 |
| 0.55 | 66.0 | 0.0737 | 0.2334 |
| 0.55 | 78.0 | 0.2837 | 0.1531 |
| 0.55 | 90.0 | -0.0235 | 0.2544 |
| 0.55 | 102.0 | -0.253 | 0.2004 |
| 0.55 | 114.0 | -0.2984 | 0.2061 |
| 0.55 | 246.0 | -0.0985 | 0.2518 |
| 0.55 | 258.0 | -0.0506 | 0.199 |
| 0.55 | 270.0 | -0.0212 | 0.1944 |
| 0.55 | 282.0 | -0.0498 | 0.1744 |
| 0.55 | 294.0 | 0.237 | 0.2382 |
| 0.65 | 66.0 | -0.174 | 0.1985 |
| 0.65 | 78.0 | -0.1476 | 0.238 |
| 0.65 | 90.0 | -0.2115 | 0.2329 |
| 0.65 | 102.0 | 0.2685 | 0.2006 |
| 0.65 | 114.0 | -0.0805 | 0.1634 |
| 0.65 | 126.0 | 0.2013 | 0.1749 |
| 0.65 | 138.0 | -0.0333 | 0.1896 |
| 0.65 | 222.0 | -0.2416 | 0.2128 |
| 0.65 | 234.0 | -0.0605 | 0.1784 |
| 0.65 | 246.0 | 0.1427 | 0.1723 |
| 0.65 | 258.0 | 0.0686 | 0.182 |
| 0.65 | 270.0 | 0.017 | 0.1767 |
| 0.65 | 282.0 | -0.3224 | 0.2348 |
| 0.65 | 306.0 | 0.143 | 0.2599 |
| 0.75 | 90.0 | 0.1213 | 0.2135 |
| 0.75 | 102.0 | -0.0957 | 0.1548 |
| 0.75 | 114.0 | 0.1919 | 0.1381 |
| 0.75 | 126.0 | -0.374 | 0.1506 |
| 0.75 | 138.0 | 0.0054 | 0.1825 |
| 0.75 | 150.0 | -0.2422 | 0.1951 |
| 0.75 | 210.0 | -0.1364 | 0.228 |
| 0.75 | 222.0 | -0.0381 | 0.1657 |
| 0.75 | 234.0 | -0.1132 | 0.1573 |
| 0.75 | 246.0 | -0.4162 | 0.1438 |
| 0.75 | 258.0 | -0.2317 | 0.1644 |
| 0.75 | 270.0 | -0.3942 | 0.1673 |
| 0.85 | 90.0 | 0.0265 | 0.2052 |
| 0.85 | 102.0 | 0.0007 | 0.1995 |
| 0.85 | 114.0 | 0.4312 | 0.1891 |
| 0.85 | 126.0 | -0.1256 | 0.156 |
| 0.85 | 138.0 | -0.1335 | 0.1815 |
| 0.85 | 210.0 | 0.1788 | 0.2522 |
| 0.85 | 222.0 | 0.117 | 0.161 |
| 0.85 | 234.0 | -0.0471 | 0.1754 |
| 0.85 | 246.0 | 0.1701 | 0.1448 |
| 0.85 | 258.0 | -0.132 | 0.1538 |
| 0.85 | 270.0 | 0.1444 | 0.1776 |
| 0.85 | 282.0 | 0.2903 | 0.2161 |
| 0.95 | 90.0 | -0.2055 | 0.2454 |
| 0.95 | 102.0 | -0.0503 | 0.2385 |
| 0.95 | 114.0 | -0.4129 | 0.2263 |
| 0.95 | 210.0 | 0.1878 | 0.2007 |
| 0.95 | 222.0 | -0.1729 | 0.2433 |
| 0.95 | 234.0 | -0.1357 | 0.2262 |
| 0.95 | 246.0 | 0.2976 | 0.1932 |
| 0.95 | 258.0 | -0.0534 | 0.1612 |
| 0.95 | 270.0 | 0.1417 | 0.2225 |
| 0.15 | 66.0 | -0.4144 | 0.2526 |
| 0.25 | 66.0 | -0.0869 | 0.2198 |
| 0.25 | 78.0 | 0.061 | 0.2437 |
| 0.25 | 294.0 | 0.198 | 0.1938 |
| 0.25 | 306.0 | -0.2302 | 0.2502 |
| 0.35 | 66.0 | -0.0079 | 0.2068 |
| 0.35 | 78.0 | -0.3339 | 0.2017 |
| 0.35 | 282.0 | 0.1587 | 0.1842 |
| 0.35 | 294.0 | 0.0808 | 0.2004 |
| 0.45 | 66.0 | 0.0808 | 0.1758 |
| 0.45 | 78.0 | -0.1655 | 0.1722 |
| 0.45 | 90.0 | 0.1068 | 0.2454 |
| 0.45 | 270.0 | -0.1376 | 0.2312 |
| 0.45 | 282.0 | -0.0753 | 0.1792 |
| 0.45 | 294.0 | 0.293 | 0.1588 |
| 0.55 | 66.0 | -0.0624 | 0.256 |
| 0.55 | 78.0 | -0.1113 | 0.2052 |
| 0.55 | 90.0 | 0.1833 | 0.2047 |
| 0.55 | 102.0 | -0.0222 | 0.2573 |
| 0.55 | 258.0 | 0.0471 | 0.2184 |
| 0.55 | 270.0 | -0.0141 | 0.2008 |
| 0.55 | 282.0 | 0.0896 | 0.1948 |
| 0.55 | 294.0 | 0.3397 | 0.2395 |
| 0.65 | 66.0 | -0.1242 | 0.2385 |
| 0.65 | 78.0 | 0.1939 | 0.2079 |
| 0.65 | 90.0 | 0.1022 | 0.22 |
| 0.65 | 102.0 | 0.5901 | 0.1669 |
| 0.65 | 114.0 | 0.1672 | 0.1691 |
| 0.65 | 126.0 | 0.1637 | 0.189 |
| 0.65 | 138.0 | -0.1987 | 0.2289 |
| 0.65 | 234.0 | -0.2104 | 0.1824 |
| 0.65 | 246.0 | -0.1561 | 0.1761 |
| 0.65 | 258.0 | 0.1899 | 0.181 |
| 0.65 | 270.0 | 0.0117 | 0.163 |
| 0.65 | 282.0 | -0.0076 | 0.27 |
| 0.75 | 90.0 | -0.2316 | 0.2504 |
| 0.75 | 102.0 | 0.0568 | 0.159 |
| 0.75 | 114.0 | -0.0961 | 0.1521 |
| 0.75 | 126.0 | 0.2723 | 0.1695 |
| 0.75 | 138.0 | 0.1301 | 0.1813 |
| 0.75 | 150.0 | 0.0325 | 0.2407 |
| 0.75 | 210.0 | -0.3965 | 0.1907 |
| 0.75 | 222.0 | -0.1514 | 0.1823 |
| 0.75 | 234.0 | 0.1174 | 0.1679 |
| 0.75 | 246.0 | 0.1951 | 0.1622 |
| 0.75 | 258.0 | 0.3277 | 0.1793 |
| 0.75 | 270.0 | 0.0062 | 0.1925 |
| 0.75 | 282.0 | -0.6506 | 0.191 |
| 0.75 | 294.0 | -0.5592 | 0.2197 |
| 0.85 | 90.0 | 0.0775 | 0.2026 |
| 0.85 | 102.0 | 0.0736 | 0.2484 |
| 0.85 | 114.0 | -0.214 | 0.1777 |
| 0.85 | 126.0 | -0.0921 | 0.1772 |
| 0.85 | 138.0 | -0.0305 | 0.1952 |
| 0.85 | 150.0 | 0.0948 | 0.2348 |
| 0.85 | 210.0 | 0.0531 | 0.2317 |
| 0.85 | 222.0 | -0.0986 | 0.1776 |
| 0.85 | 234.0 | 0.4053 | 0.1776 |
| 0.85 | 246.0 | 0.1515 | 0.1583 |
| 0.85 | 258.0 | -0.0074 | 0.1602 |
| 0.85 | 270.0 | -0.4232 | 0.1629 |
| 0.85 | 282.0 | 0.2401 | 0.2536 |
| 0.95 | 102.0 | 0.0328 | 0.2632 |
| 0.95 | 126.0 | 0.0262 | 0.2317 |
| 0.95 | 234.0 | -0.08 | 0.2094 |
| 0.95 | 246.0 | 0.0844 | 0.1848 |
| 0.95 | 258.0 | -0.3357 | 0.1763 |
| 0.95 | 270.0 | 0.2376 | 0.2453 |
Experiment comment: