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Experiment: EG4, 2016
Spokespersons: Xiaochao Zheng
Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
No publications available for this experiment
Quantity measured: ALU,
Beam asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π+n, polarization: none
| Q2 : | 0.101 GeV2 | |
|---|---|---|
| W : | 1445 GeV | |
| ε : | 0.9227 | |
| Ebeam : | 2.2596 GeV | |
| εL: | 0.1916 |
|
Select data slice:
cos(θπ+) = |
Observable quantity measured (Y axis): ALU,
Parameter (X axis): φ(π+), degrees |
Click here to get data in text file, delimited with tabs.
Measured data:
| cos(θπ+) |
φ(π+),
degrees |
ALU | Stat. error | Syst. error |
|---|---|---|---|---|
| 0.25 | 66 | 0.3891 | 0.1956 | 0.031 |
| 0.25 | 78 | 0.1367 | 0.244 | 0.0301 |
| 0.25 | 294 | -0.1125 | 0.1551 | 0.0301 |
| 0.35 | 66 | -0.12 | 0.2252 | 0.0301 |
| 0.35 | 78 | -0.4943 | 0.1731 | 0.0316 |
| 0.35 | 282 | 0.0934 | 0.1924 | 0.0301 |
| 0.35 | 294 | 0.2121 | 0.2235 | 0.0303 |
| 0.45 | 66 | -0.0457 | 0.1929 | 0.03 |
| 0.45 | 78 | 0.2297 | 0.1981 | 0.0303 |
| 0.45 | 270 | -0.3201 | 0.2082 | 0.0307 |
| 0.45 | 282 | 0.025 | 0.1749 | 0.03 |
| 0.45 | 294 | -0.0811 | 0.1956 | 0.03 |
| 0.55 | 102 | -0.1866 | 0.2194 | 0.0302 |
| 0.55 | 114 | -0.2048 | 0.2178 | 0.0303 |
| 0.55 | 126 | 0.1761 | 0.2578 | 0.0302 |
| 0.55 | 258 | 0.2024 | 0.2502 | 0.0303 |
| 0.55 | 270 | 0.1803 | 0.226 | 0.0302 |
| 0.55 | 282 | -0.2171 | 0.2084 | 0.0303 |
| 0.55 | 294 | 0.1441 | 0.2589 | 0.0301 |
| 0.65 | 66 | -0.317 | 0.2457 | 0.0307 |
| 0.65 | 78 | 0.0383 | 0.2488 | 0.03 |
| 0.65 | 90 | 0.2524 | 0.2742 | 0.0304 |
| 0.65 | 102 | 0.1646 | 0.2362 | 0.0302 |
| 0.65 | 114 | -0.1032 | 0.1875 | 0.0301 |
| 0.65 | 126 | 0.1827 | 0.223 | 0.0302 |
| 0.65 | 222 | -0.0463 | 0.2245 | 0.03 |
| 0.65 | 234 | 0.2351 | 0.2121 | 0.0304 |
| 0.65 | 246 | -0.5167 | 0.1901 | 0.0317 |
| 0.65 | 258 | -0.216 | 0.2279 | 0.0303 |
| 0.65 | 270 | 0.265 | 0.2142 | 0.0305 |
| 0.65 | 282 | -0.2157 | 0.2569 | 0.0303 |
| 0.65 | 306 | -0.1162 | 0.2322 | 0.0301 |
| 0.75 | 90 | 0.0691 | 0.2363 | 0.03 |
| 0.75 | 102 | 0.0796 | 0.1881 | 0.03 |
| 0.75 | 114 | 0.3253 | 0.1551 | 0.0307 |
| 0.75 | 126 | 0.1424 | 0.1717 | 0.0301 |
| 0.75 | 138 | 0.0756 | 0.2004 | 0.03 |
| 0.75 | 150 | 0.2104 | 0.2592 | 0.0303 |
| 0.75 | 222 | -0.0812 | 0.1873 | 0.03 |
| 0.75 | 234 | -0.1113 | 0.1878 | 0.0301 |
| 0.75 | 246 | -0.045 | 0.2254 | 0.03 |
| 0.75 | 258 | -0.2809 | 0.1813 | 0.0305 |
| 0.75 | 270 | 0.5414 | 0.2128 | 0.0319 |
| 0.85 | 78 | -0.1633 | 0.2524 | 0.0302 |
| 0.85 | 90 | -0.3259 | 0.2442 | 0.0307 |
| 0.85 | 102 | -0.4317 | 0.2287 | 0.0312 |
| 0.85 | 114 | -0.0108 | 0.2257 | 0.03 |
| 0.85 | 126 | 0.4325 | 0.1873 | 0.0312 |
| 0.85 | 138 | 0.0848 | 0.2256 | 0.03 |
| 0.85 | 210 | 0.2346 | 0.2334 | 0.0304 |
| 0.85 | 222 | 0.0061 | 0.2035 | 0.03 |
| 0.85 | 234 | 0.1199 | 0.1763 | 0.0301 |
| 0.85 | 246 | -0.1713 | 0.1567 | 0.0302 |
| 0.85 | 258 | 0.0545 | 0.1698 | 0.03 |
| 0.85 | 270 | -0.1926 | 0.2213 | 0.0302 |
| 0.95 | 210 | -0.1839 | 0.2533 | 0.0302 |
| 0.95 | 222 | -0.1648 | 0.2242 | 0.0302 |
| 0.95 | 246 | 0.3925 | 0.2054 | 0.031 |
| 0.95 | 258 | 0.2034 | 0.2053 | 0.0303 |
| 0.25 | 306 | -0.3867 | 0.2396 | 0.031 |
| 0.35 | 66 | -0.0398 | 0.1757 | 0.03 |
| 0.35 | 78 | 0.3578 | 0.1964 | 0.0308 |
| 0.35 | 282 | -0.1309 | 0.2113 | 0.0301 |
| 0.35 | 294 | -0.0368 | 0.1836 | 0.03 |
| 0.45 | 66 | 0.1118 | 0.2424 | 0.0301 |
| 0.45 | 78 | 0.3657 | 0.1864 | 0.0309 |
| 0.45 | 90 | 0.3548 | 0.2419 | 0.0308 |
| 0.45 | 270 | -0.0796 | 0.1953 | 0.03 |
| 0.45 | 282 | -0.1222 | 0.1809 | 0.0301 |
| 0.45 | 294 | -0.0702 | 0.1849 | 0.03 |
| 0.55 | 78 | -0.0332 | 0.2089 | 0.03 |
| 0.55 | 102 | 0.0523 | 0.2528 | 0.03 |
| 0.55 | 114 | 0.2712 | 0.2015 | 0.0305 |
| 0.55 | 258 | 0.1811 | 0.241 | 0.0302 |
| 0.55 | 270 | 0.2396 | 0.2006 | 0.0304 |
| 0.55 | 282 | -0.0821 | 0.1716 | 0.03 |
| 0.55 | 294 | -0.571 | 0.1973 | 0.0321 |
| 0.65 | 90 | 0.115 | 0.2455 | 0.0301 |
| 0.65 | 102 | 0.001 | 0.1821 | 0.03 |
| 0.65 | 114 | -0.2595 | 0.1712 | 0.0304 |
| 0.65 | 126 | 0.2476 | 0.1672 | 0.0304 |
| 0.65 | 138 | 0.1451 | 0.2091 | 0.0301 |
| 0.65 | 222 | -0.4276 | 0.211 | 0.0312 |
| 0.65 | 234 | 0.1872 | 0.2023 | 0.0302 |
| 0.65 | 246 | -0.0346 | 0.2103 | 0.03 |
| 0.65 | 258 | -0.207 | 0.2542 | 0.0303 |
| 0.65 | 270 | -0.3742 | 0.206 | 0.0309 |
| 0.75 | 102 | 0.056 | 0.187 | 0.03 |
| 0.75 | 114 | -0.1196 | 0.1568 | 0.0301 |
| 0.75 | 126 | 0.1942 | 0.1984 | 0.0303 |
| 0.75 | 138 | 0.0069 | 0.187 | 0.03 |
| 0.75 | 150 | -0.2712 | 0.2288 | 0.0305 |
| 0.75 | 210 | -0.4155 | 0.2305 | 0.0311 |
| 0.75 | 222 | 0.0355 | 0.1842 | 0.03 |
| 0.75 | 234 | -0.0759 | 0.1864 | 0.03 |
| 0.75 | 246 | 0.0469 | 0.1663 | 0.03 |
| 0.75 | 258 | -0.0482 | 0.1686 | 0.03 |
| 0.75 | 270 | -0.5476 | 0.2242 | 0.0319 |
| 0.75 | 294 | 0.0433 | 0.2351 | 0.03 |
| 0.85 | 90 | 0.2669 | 0.199 | 0.0305 |
| 0.85 | 114 | 0.3137 | 0.198 | 0.0306 |
| 0.85 | 126 | 0.1404 | 0.1883 | 0.0301 |
| 0.85 | 138 | -0.0036 | 0.1938 | 0.03 |
| 0.85 | 210 | 0.1576 | 0.2394 | 0.0302 |
| 0.85 | 222 | 0.178 | 0.2045 | 0.0302 |
| 0.85 | 234 | 0.1491 | 0.2019 | 0.0301 |
| 0.85 | 246 | -0.3072 | 0.1494 | 0.0306 |
| 0.85 | 258 | 0.2512 | 0.1761 | 0.0304 |
| 0.85 | 270 | 0.0052 | 0.2082 | 0.03 |
| 0.95 | 102 | 0.0132 | 0.2554 | 0.03 |
| 0.95 | 222 | -0.0117 | 0.2438 | 0.03 |
| 0.95 | 234 | -0.1152 | 0.212 | 0.0301 |
| 0.95 | 246 | -0.197 | 0.2156 | 0.0303 |
| 0.95 | 258 | -0.0605 | 0.1754 | 0.03 |
| 0.95 | 270 | -0.1441 | 0.2443 | 0.0301 |