Measurement E151M3305
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0933 | |
| Q2: | 0.0707 GeV2 | |
| W: | 1535.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.8959 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 66.0 | 0.1406 | 0.1693 |
| 0.35 | 66.0 | 0.0517 | 0.234 |
| 0.35 | 78.0 | 0.1441 | 0.1948 |
| 0.35 | 270.0 | 0.0276 | 0.1983 |
| 0.35 | 282.0 | 0.0795 | 0.1965 |
| 0.35 | 294.0 | 0.1028 | 0.2342 |
| 0.45 | 78.0 | -0.0874 | 0.2421 |
| 0.45 | 126.0 | 0.1905 | 0.2607 |
| 0.45 | 270.0 | -0.1482 | 0.2006 |
| 0.45 | 282.0 | -0.1058 | 0.1797 |
| 0.45 | 294.0 | 0.1676 | 0.206 |
| 0.55 | 78.0 | -0.1 | 0.216 |
| 0.55 | 102.0 | 0.3457 | 0.2426 |
| 0.55 | 114.0 | -0.2168 | 0.1959 |
| 0.55 | 126.0 | 0.0195 | 0.2072 |
| 0.55 | 138.0 | -0.0251 | 0.2301 |
| 0.55 | 222.0 | -0.157 | 0.22 |
| 0.55 | 234.0 | -0.0181 | 0.2188 |
| 0.55 | 246.0 | 0.1673 | 0.2532 |
| 0.55 | 258.0 | 0.1765 | 0.2577 |
| 0.55 | 270.0 | -0.0351 | 0.1967 |
| 0.55 | 282.0 | 0.1272 | 0.2069 |
| 0.65 | 66.0 | 0.2215 | 0.261 |
| 0.65 | 102.0 | -0.3556 | 0.228 |
| 0.65 | 114.0 | 0.1264 | 0.2055 |
| 0.65 | 126.0 | 0.0778 | 0.1917 |
| 0.65 | 138.0 | 0.1567 | 0.257 |
| 0.65 | 150.0 | 0.1689 | 0.2394 |
| 0.65 | 198.0 | 0.0491 | 0.2186 |
| 0.65 | 210.0 | 0.1271 | 0.2006 |
| 0.65 | 222.0 | -0.2076 | 0.1882 |
| 0.65 | 234.0 | -0.2159 | 0.1702 |
| 0.65 | 246.0 | -0.066 | 0.2269 |
| 0.65 | 258.0 | -0.0331 | 0.2183 |
| 0.65 | 270.0 | 0.3762 | 0.2381 |
| 0.65 | 294.0 | 0.2202 | 0.2231 |
| 0.75 | 102.0 | -0.0885 | 0.2641 |
| 0.75 | 114.0 | 0.2165 | 0.1868 |
| 0.75 | 126.0 | -0.0696 | 0.2075 |
| 0.75 | 138.0 | 0.0777 | 0.2475 |
| 0.75 | 150.0 | 0.0475 | 0.2349 |
| 0.75 | 186.0 | -0.0594 | 0.2625 |
| 0.75 | 198.0 | -0.0842 | 0.243 |
| 0.75 | 210.0 | 0.0874 | 0.2528 |
| 0.75 | 222.0 | -0.4737 | 0.1904 |
| 0.75 | 234.0 | -0.4241 | 0.1685 |
| 0.75 | 246.0 | -0.1428 | 0.2233 |
| 0.75 | 270.0 | -0.3238 | 0.2155 |
| 0.75 | 282.0 | -0.3681 | 0.1756 |
| 0.75 | 294.0 | 0.0441 | 0.2509 |
| 0.85 | 90.0 | -0.263 | 0.2199 |
| 0.85 | 102.0 | 0.1328 | 0.1766 |
| 0.85 | 126.0 | -0.5476 | 0.1852 |
| 0.85 | 210.0 | 0.0213 | 0.198 |
| 0.85 | 222.0 | -0.0281 | 0.1868 |
| 0.85 | 234.0 | 0.1306 | 0.1561 |
| 0.85 | 246.0 | 0.0272 | 0.1929 |
| 0.85 | 258.0 | -0.3247 | 0.2088 |
| 0.95 | 114.0 | 0.208 | 0.2435 |
| 0.95 | 234.0 | 0.0793 | 0.2226 |
| 0.95 | 246.0 | -0.3223 | 0.245 |
| 0.25 | 78.0 | -0.1944 | 0.2277 |
| 0.35 | 66.0 | 0.1787 | 0.224 |
| 0.35 | 78.0 | 0.2484 | 0.1981 |
| 0.35 | 90.0 | -0.2778 | 0.2403 |
| 0.35 | 270.0 | 0.0038 | 0.229 |
| 0.35 | 282.0 | -0.3938 | 0.212 |
| 0.35 | 294.0 | -0.0186 | 0.2318 |
| 0.45 | 66.0 | 0.4429 | 0.236 |
| 0.45 | 78.0 | 0.0 | 0.1993 |
| 0.45 | 102.0 | 0.0746 | 0.225 |
| 0.45 | 126.0 | -0.3835 | 0.2371 |
| 0.45 | 270.0 | 0.3343 | 0.1937 |
| 0.45 | 282.0 | 0.1224 | 0.197 |
| 0.45 | 294.0 | -0.0255 | 0.2118 |
| 0.55 | 78.0 | 0.3644 | 0.219 |
| 0.55 | 90.0 | -0.1364 | 0.2407 |
| 0.55 | 102.0 | -0.2084 | 0.22 |
| 0.55 | 114.0 | -0.2338 | 0.1937 |
| 0.55 | 126.0 | 0.1622 | 0.2156 |
| 0.55 | 138.0 | -0.0855 | 0.247 |
| 0.55 | 246.0 | -0.1604 | 0.2294 |
| 0.55 | 258.0 | 0.0969 | 0.2584 |
| 0.55 | 270.0 | -0.2392 | 0.2073 |
| 0.55 | 282.0 | 0.0845 | 0.1717 |
| 0.65 | 66.0 | 0.0584 | 0.213 |
| 0.65 | 102.0 | -0.1648 | 0.2018 |
| 0.65 | 114.0 | -0.0902 | 0.173 |
| 0.65 | 126.0 | 0.0834 | 0.1676 |
| 0.65 | 138.0 | -0.2187 | 0.1892 |
| 0.65 | 210.0 | -0.058 | 0.1916 |
| 0.65 | 222.0 | 0.0494 | 0.1882 |
| 0.65 | 234.0 | 0.4369 | 0.1626 |
| 0.65 | 246.0 | -0.4745 | 0.2092 |
| 0.65 | 258.0 | 0.0066 | 0.1991 |
| 0.65 | 270.0 | 0.1077 | 0.2284 |
| 0.65 | 282.0 | 0.0568 | 0.261 |
| 0.65 | 294.0 | 0.3446 | 0.1962 |
| 0.75 | 66.0 | -0.1155 | 0.2375 |
| 0.75 | 78.0 | 0.1612 | 0.2576 |
| 0.75 | 90.0 | 0.0895 | 0.2633 |
| 0.75 | 102.0 | 0.4025 | 0.2161 |
| 0.75 | 114.0 | 0.3737 | 0.186 |
| 0.75 | 126.0 | -0.0816 | 0.1825 |
| 0.75 | 138.0 | 0.0147 | 0.1741 |
| 0.75 | 150.0 | 0.2794 | 0.2745 |
| 0.75 | 162.0 | 0.6325 | 0.2324 |
| 0.75 | 198.0 | -0.3556 | 0.1985 |
| 0.75 | 210.0 | -0.2999 | 0.1886 |
| 0.75 | 222.0 | -0.0327 | 0.1691 |
| 0.75 | 234.0 | -0.1835 | 0.1995 |
| 0.75 | 246.0 | -0.0067 | 0.1968 |
| 0.75 | 258.0 | -0.0618 | 0.2493 |
| 0.75 | 270.0 | 0.2628 | 0.2456 |
| 0.75 | 282.0 | -0.1643 | 0.1915 |
| 0.75 | 294.0 | -0.0416 | 0.2025 |
| 0.85 | 90.0 | 0.2268 | 0.1861 |
| 0.85 | 102.0 | 0.1524 | 0.1995 |
| 0.85 | 114.0 | -0.0077 | 0.2287 |
| 0.85 | 126.0 | 0.0027 | 0.2398 |
| 0.85 | 138.0 | 0.1435 | 0.2216 |
| 0.85 | 198.0 | 0.4398 | 0.2195 |
| 0.85 | 210.0 | -0.0214 | 0.1869 |
| 0.85 | 222.0 | -0.3794 | 0.1591 |
| 0.85 | 234.0 | -0.5003 | 0.1623 |
| 0.85 | 246.0 | -0.4701 | 0.1642 |
| 0.85 | 258.0 | 0.1837 | 0.2109 |
| 0.85 | 270.0 | 0.2292 | 0.2508 |
| 0.95 | 102.0 | 0.0971 | 0.258 |
| 0.95 | 222.0 | -0.4027 | 0.1995 |
| 0.95 | 234.0 | 0.3227 | 0.2218 |
| 0.95 | 246.0 | 0.1189 | 0.2574 |
Experiment comment: