Measurement E151M3266
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.2208 | |
| Q2: | 0.1205 GeV2 | |
| W: | 1445.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.918 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 66.0 | 0.2609 | 0.2355 |
| 0.35 | 78.0 | 0.3904 | 0.2641 |
| 0.35 | 282.0 | -0.0106 | 0.211 |
| 0.35 | 294.0 | 0.3157 | 0.2513 |
| 0.45 | 78.0 | 0.1109 | 0.2506 |
| 0.45 | 270.0 | -0.2682 | 0.2245 |
| 0.45 | 282.0 | 0.0849 | 0.2237 |
| 0.45 | 294.0 | 0.6962 | 0.1645 |
| 0.55 | 66.0 | -0.0602 | 0.2679 |
| 0.55 | 78.0 | 0.0479 | 0.2708 |
| 0.55 | 102.0 | 0.0279 | 0.247 |
| 0.55 | 114.0 | -0.191 | 0.2391 |
| 0.55 | 294.0 | -0.0364 | 0.258 |
| 0.65 | 102.0 | -0.0209 | 0.1835 |
| 0.65 | 114.0 | 0.0645 | 0.1973 |
| 0.65 | 126.0 | -0.0318 | 0.2476 |
| 0.65 | 222.0 | 0.2095 | 0.2476 |
| 0.65 | 234.0 | -0.0943 | 0.2389 |
| 0.65 | 246.0 | -0.0106 | 0.215 |
| 0.65 | 258.0 | 0.0668 | 0.2468 |
| 0.75 | 102.0 | 0.0119 | 0.1954 |
| 0.75 | 114.0 | -0.2567 | 0.1731 |
| 0.75 | 126.0 | 0.109 | 0.183 |
| 0.75 | 138.0 | -0.0462 | 0.2334 |
| 0.75 | 222.0 | -0.2791 | 0.2113 |
| 0.75 | 234.0 | -0.1117 | 0.1749 |
| 0.75 | 246.0 | -0.1403 | 0.2022 |
| 0.75 | 258.0 | -0.2588 | 0.2144 |
| 0.85 | 78.0 | -0.4848 | 0.2282 |
| 0.85 | 90.0 | -0.0437 | 0.2415 |
| 0.85 | 102.0 | -0.1982 | 0.2161 |
| 0.85 | 114.0 | -0.0512 | 0.2088 |
| 0.85 | 126.0 | -0.1883 | 0.2202 |
| 0.85 | 138.0 | 0.5783 | 0.2169 |
| 0.85 | 210.0 | 0.1826 | 0.2322 |
| 0.85 | 222.0 | -0.0852 | 0.2358 |
| 0.85 | 234.0 | -0.1278 | 0.1827 |
| 0.85 | 246.0 | 0.2202 | 0.2022 |
| 0.85 | 258.0 | -0.429 | 0.1792 |
| 0.85 | 270.0 | 0.0957 | 0.2277 |
| 0.85 | 282.0 | -0.23 | 0.2339 |
| 0.95 | 90.0 | 0.0505 | 0.2228 |
| 0.95 | 234.0 | -0.0965 | 0.2595 |
| 0.95 | 258.0 | -0.251 | 0.1868 |
| 0.95 | 270.0 | -0.0417 | 0.1992 |
| 0.15 | 66.0 | -0.2717 | 0.2471 |
| 0.25 | 54.0 | -0.2992 | 0.2514 |
| 0.25 | 66.0 | 0.0812 | 0.2153 |
| 0.25 | 78.0 | -0.1234 | 0.2588 |
| 0.25 | 294.0 | -0.1269 | 0.2046 |
| 0.35 | 66.0 | -0.0984 | 0.2359 |
| 0.35 | 78.0 | -0.5398 | 0.1948 |
| 0.35 | 282.0 | 0.2121 | 0.2091 |
| 0.35 | 294.0 | -0.1249 | 0.2403 |
| 0.35 | 306.0 | -0.6963 | 0.1901 |
| 0.45 | 66.0 | -0.401 | 0.1937 |
| 0.45 | 78.0 | 0.0141 | 0.2153 |
| 0.45 | 270.0 | -0.2811 | 0.2525 |
| 0.45 | 282.0 | 0.179 | 0.1825 |
| 0.45 | 294.0 | 0.0045 | 0.2149 |
| 0.55 | 90.0 | 0.1271 | 0.2317 |
| 0.55 | 102.0 | 0.2738 | 0.204 |
| 0.55 | 114.0 | -0.0291 | 0.2111 |
| 0.55 | 270.0 | 0.0966 | 0.2234 |
| 0.55 | 282.0 | -0.1641 | 0.1948 |
| 0.55 | 294.0 | 0.1104 | 0.2292 |
| 0.65 | 102.0 | 0.0482 | 0.2129 |
| 0.65 | 114.0 | 0.1858 | 0.1981 |
| 0.65 | 126.0 | -0.1773 | 0.1819 |
| 0.65 | 234.0 | -0.4805 | 0.2128 |
| 0.65 | 246.0 | -0.1176 | 0.2357 |
| 0.65 | 258.0 | 0.1213 | 0.2493 |
| 0.65 | 294.0 | -0.2995 | 0.224 |
| 0.75 | 102.0 | 0.2043 | 0.1838 |
| 0.75 | 114.0 | -0.1381 | 0.1818 |
| 0.75 | 126.0 | 0.312 | 0.1947 |
| 0.75 | 138.0 | 0.1622 | 0.197 |
| 0.75 | 210.0 | 0.3033 | 0.2234 |
| 0.75 | 222.0 | -0.0647 | 0.2403 |
| 0.75 | 234.0 | -0.1213 | 0.2051 |
| 0.75 | 246.0 | -0.1912 | 0.1896 |
| 0.75 | 258.0 | 0.1366 | 0.1969 |
| 0.85 | 78.0 | 0.2448 | 0.2142 |
| 0.85 | 102.0 | -0.2057 | 0.2174 |
| 0.85 | 114.0 | -0.1503 | 0.2316 |
| 0.85 | 126.0 | -0.0513 | 0.1795 |
| 0.85 | 210.0 | -0.4506 | 0.2313 |
| 0.85 | 222.0 | -0.0622 | 0.236 |
| 0.85 | 234.0 | -0.3061 | 0.2299 |
| 0.85 | 246.0 | 0.2064 | 0.1718 |
| 0.85 | 258.0 | -0.2322 | 0.1741 |
| 0.85 | 270.0 | -0.2648 | 0.2373 |
| 0.95 | 90.0 | 0.1661 | 0.189 |
| 0.95 | 222.0 | -0.2376 | 0.2238 |
| 0.95 | 234.0 | -0.2936 | 0.2113 |
| 0.95 | 246.0 | 0.33 | 0.2283 |
| 0.95 | 258.0 | 0.2517 | 0.2056 |
| 0.95 | 270.0 | -0.1558 | 0.1905 |
| 0.95 | 282.0 | 0.0049 | 0.259 |
Experiment comment: