Measurement E151M3264
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1651 | |
| Q2: | 0.0844 GeV2 | |
| W: | 1445.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9267 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 66.0 | 0.4259 | 0.2272 |
| 0.25 | 78.0 | -0.3187 | 0.2518 |
| 0.25 | 282.0 | 0.1198 | 0.2618 |
| 0.25 | 294.0 | 0.2207 | 0.2193 |
| 0.35 | 66.0 | -0.011 | 0.174 |
| 0.35 | 78.0 | -0.1012 | 0.1709 |
| 0.35 | 282.0 | 0.0686 | 0.1893 |
| 0.35 | 294.0 | 0.0819 | 0.168 |
| 0.45 | 66.0 | -0.0233 | 0.1769 |
| 0.45 | 78.0 | -0.0419 | 0.1744 |
| 0.45 | 90.0 | -0.0255 | 0.2007 |
| 0.45 | 270.0 | 0.2708 | 0.2057 |
| 0.45 | 282.0 | -0.0529 | 0.1616 |
| 0.45 | 294.0 | 0.0301 | 0.1859 |
| 0.45 | 306.0 | 0.0015 | 0.2398 |
| 0.55 | 66.0 | -0.0713 | 0.2523 |
| 0.55 | 78.0 | -0.4759 | 0.1815 |
| 0.55 | 90.0 | -0.1936 | 0.2019 |
| 0.55 | 102.0 | -0.3472 | 0.2278 |
| 0.55 | 114.0 | -0.1387 | 0.2359 |
| 0.55 | 126.0 | 0.1908 | 0.2212 |
| 0.55 | 258.0 | -0.1026 | 0.2202 |
| 0.55 | 270.0 | -0.2128 | 0.2089 |
| 0.55 | 282.0 | 0.0108 | 0.1714 |
| 0.55 | 294.0 | 0.1533 | 0.2475 |
| 0.65 | 66.0 | -0.3488 | 0.2258 |
| 0.65 | 90.0 | 0.0451 | 0.2206 |
| 0.65 | 102.0 | 0.405 | 0.1862 |
| 0.65 | 114.0 | -0.1051 | 0.1755 |
| 0.65 | 126.0 | 0.147 | 0.1814 |
| 0.65 | 138.0 | 0.3111 | 0.2111 |
| 0.65 | 150.0 | -0.0617 | 0.2419 |
| 0.65 | 210.0 | -0.2709 | 0.2497 |
| 0.65 | 222.0 | -0.0511 | 0.2458 |
| 0.65 | 234.0 | -0.5219 | 0.1619 |
| 0.65 | 246.0 | -0.1677 | 0.2017 |
| 0.65 | 258.0 | 0.1785 | 0.1962 |
| 0.65 | 270.0 | -0.2143 | 0.1976 |
| 0.65 | 282.0 | 0.162 | 0.2611 |
| 0.65 | 306.0 | 0.1381 | 0.2545 |
| 0.75 | 90.0 | 0.0202 | 0.2536 |
| 0.75 | 102.0 | -0.0025 | 0.1839 |
| 0.75 | 114.0 | 0.4132 | 0.1692 |
| 0.75 | 126.0 | 0.0574 | 0.1659 |
| 0.75 | 138.0 | 0.2399 | 0.1939 |
| 0.75 | 150.0 | 0.1617 | 0.2155 |
| 0.75 | 198.0 | -0.4386 | 0.2257 |
| 0.75 | 210.0 | -0.1509 | 0.1978 |
| 0.75 | 222.0 | 0.1019 | 0.1901 |
| 0.75 | 234.0 | 0.2633 | 0.1715 |
| 0.75 | 246.0 | 0.0473 | 0.1627 |
| 0.75 | 258.0 | -0.3641 | 0.1814 |
| 0.75 | 270.0 | -0.1528 | 0.2295 |
| 0.75 | 294.0 | -0.1669 | 0.2627 |
| 0.85 | 90.0 | 0.3059 | 0.2383 |
| 0.85 | 102.0 | 0.0144 | 0.2013 |
| 0.85 | 114.0 | -0.2961 | 0.1887 |
| 0.85 | 126.0 | 0.0333 | 0.1687 |
| 0.85 | 138.0 | -0.5358 | 0.179 |
| 0.85 | 150.0 | 0.0343 | 0.2227 |
| 0.85 | 210.0 | -0.1264 | 0.2353 |
| 0.85 | 222.0 | 0.1832 | 0.1953 |
| 0.85 | 234.0 | 0.0656 | 0.1639 |
| 0.85 | 246.0 | -0.2674 | 0.1479 |
| 0.85 | 258.0 | -0.0058 | 0.1892 |
| 0.85 | 270.0 | -0.3864 | 0.1733 |
| 0.85 | 282.0 | -0.1706 | 0.2298 |
| 0.95 | 222.0 | -0.3914 | 0.1925 |
| 0.95 | 234.0 | -0.4083 | 0.1939 |
| 0.95 | 246.0 | -0.205 | 0.2248 |
| 0.95 | 258.0 | -0.2261 | 0.2012 |
| 0.95 | 270.0 | -0.0599 | 0.2148 |
| 0.15 | 66.0 | -0.1269 | 0.2311 |
| 0.25 | 66.0 | 0.2036 | 0.1917 |
| 0.25 | 78.0 | -0.3939 | 0.1776 |
| 0.25 | 282.0 | -0.0114 | 0.2302 |
| 0.25 | 294.0 | -0.0204 | 0.2385 |
| 0.25 | 306.0 | -0.2299 | 0.2518 |
| 0.35 | 66.0 | 0.0174 | 0.1687 |
| 0.35 | 78.0 | 0.0576 | 0.1838 |
| 0.35 | 90.0 | -0.0367 | 0.2026 |
| 0.35 | 270.0 | -0.3607 | 0.2095 |
| 0.35 | 282.0 | -0.0152 | 0.1739 |
| 0.35 | 294.0 | 0.0513 | 0.187 |
| 0.35 | 306.0 | 0.1639 | 0.2566 |
| 0.45 | 66.0 | -0.1949 | 0.1668 |
| 0.45 | 78.0 | -0.0004 | 0.1504 |
| 0.45 | 102.0 | 0.0128 | 0.2455 |
| 0.45 | 270.0 | -0.0661 | 0.2204 |
| 0.45 | 282.0 | 0.0711 | 0.1586 |
| 0.45 | 294.0 | 0.138 | 0.1639 |
| 0.45 | 306.0 | -0.178 | 0.2153 |
| 0.55 | 66.0 | -0.4705 | 0.199 |
| 0.55 | 78.0 | -0.1234 | 0.1788 |
| 0.55 | 90.0 | 0.0026 | 0.201 |
| 0.55 | 102.0 | 0.1275 | 0.1933 |
| 0.55 | 114.0 | -0.0087 | 0.1783 |
| 0.55 | 126.0 | 0.0475 | 0.2016 |
| 0.55 | 246.0 | -0.2098 | 0.2398 |
| 0.55 | 258.0 | 0.2087 | 0.2048 |
| 0.55 | 270.0 | -0.1885 | 0.1714 |
| 0.55 | 282.0 | 0.2538 | 0.1636 |
| 0.55 | 294.0 | -0.3682 | 0.1925 |
| 0.65 | 66.0 | -0.0427 | 0.2208 |
| 0.65 | 78.0 | -0.1553 | 0.2383 |
| 0.65 | 90.0 | -0.2659 | 0.2067 |
| 0.65 | 102.0 | 0.2517 | 0.1769 |
| 0.65 | 114.0 | -0.0435 | 0.1709 |
| 0.65 | 126.0 | -0.1264 | 0.1629 |
| 0.65 | 138.0 | -0.201 | 0.2233 |
| 0.65 | 210.0 | 0.1217 | 0.2344 |
| 0.65 | 222.0 | -0.1656 | 0.1975 |
| 0.65 | 234.0 | 0.3963 | 0.1751 |
| 0.65 | 246.0 | 0.078 | 0.1929 |
| 0.65 | 258.0 | -0.1412 | 0.1701 |
| 0.65 | 270.0 | -0.1358 | 0.231 |
| 0.65 | 294.0 | -0.3264 | 0.2454 |
| 0.65 | 306.0 | -0.2542 | 0.2549 |
| 0.75 | 78.0 | -0.3279 | 0.2023 |
| 0.75 | 90.0 | -0.1018 | 0.2518 |
| 0.75 | 102.0 | 0.2588 | 0.1858 |
| 0.75 | 114.0 | -0.0469 | 0.1414 |
| 0.75 | 126.0 | -0.3085 | 0.1452 |
| 0.75 | 138.0 | -0.0417 | 0.1887 |
| 0.75 | 150.0 | 0.0917 | 0.2379 |
| 0.75 | 210.0 | -0.0126 | 0.1998 |
| 0.75 | 222.0 | -0.0994 | 0.1823 |
| 0.75 | 234.0 | -0.0928 | 0.1805 |
| 0.75 | 246.0 | -0.0425 | 0.1548 |
| 0.75 | 258.0 | 0.0687 | 0.1777 |
| 0.75 | 270.0 | -0.4468 | 0.1901 |
| 0.75 | 282.0 | -0.4023 | 0.226 |
| 0.75 | 294.0 | -0.1475 | 0.2042 |
| 0.85 | 90.0 | 0.0835 | 0.1906 |
| 0.85 | 102.0 | -0.0204 | 0.2207 |
| 0.85 | 114.0 | 0.0988 | 0.1594 |
| 0.85 | 126.0 | 0.0386 | 0.179 |
| 0.85 | 138.0 | 0.272 | 0.2127 |
| 0.85 | 150.0 | 0.1087 | 0.258 |
| 0.85 | 198.0 | 0.3626 | 0.2225 |
| 0.85 | 210.0 | -0.0445 | 0.2193 |
| 0.85 | 222.0 | 0.2086 | 0.1821 |
| 0.85 | 234.0 | 0.354 | 0.1524 |
| 0.85 | 246.0 | -0.1579 | 0.1501 |
| 0.85 | 258.0 | 0.099 | 0.1543 |
| 0.85 | 270.0 | -0.0135 | 0.183 |
| 0.85 | 282.0 | 0.0635 | 0.2319 |
| 0.95 | 102.0 | -0.1613 | 0.2184 |
| 0.95 | 222.0 | -0.2993 | 0.2177 |
| 0.95 | 234.0 | 0.1141 | 0.2107 |
| 0.95 | 246.0 | -0.0241 | 0.1811 |
| 0.95 | 258.0 | -0.0925 | 0.1916 |
| 0.95 | 270.0 | 0.0758 | 0.2555 |
Experiment comment: