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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 : | 1325 GeV | |
| ε : | 0.9546 | |
| Ebeam : | 2.2596 GeV | |
| εL: | 0.3561 |
|
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 |
|---|---|---|---|---|
| 0.15 | 66 | 0.0406 | 0.2461 | 0.03 |
| 0.15 | 294 | 0.1454 | 0.2581 | 0.0301 |
| 0.15 | 306 | -0.0522 | 0.152 | 0.0302 |
| 0.25 | 66 | -0.0883 | 0.1348 | 0.0301 |
| 0.25 | 78 | 0.6694 | 0.2112 | 0.0329 |
| 0.25 | 294 | -0.2212 | 0.1511 | 0.0304 |
| 0.25 | 306 | 0.1634 | 0.1405 | 0.0302 |
| 0.35 | 66 | 0.0471 | 0.1159 | 0.0301 |
| 0.35 | 78 | -0.1301 | 0.1395 | 0.0303 |
| 0.35 | 282 | -0.2048 | 0.2546 | 0.0303 |
| 0.35 | 294 | 0.1268 | 0.1347 | 0.0301 |
| 0.45 | 66 | 0.0377 | 0.2151 | 0.03 |
| 0.45 | 78 | -0.1784 | 0.1851 | 0.0302 |
| 0.45 | 282 | -0.0556 | 0.2229 | 0.03 |
| 0.45 | 294 | 0.1666 | 0.188 | 0.0302 |
| 0.55 | 66 | -0.0014 | 0.1923 | 0.03 |
| 0.55 | 78 | 0.0836 | 0.1969 | 0.03 |
| 0.55 | 90 | -0.1446 | 0.2511 | 0.0301 |
| 0.55 | 258 | -0.2731 | 0.2449 | 0.0305 |
| 0.55 | 270 | 0.0751 | 0.25 | 0.03 |
| 0.55 | 282 | 0.2967 | 0.2232 | 0.0306 |
| 0.65 | 90 | 0.1813 | 0.241 | 0.0302 |
| 0.65 | 114 | -0.2417 | 0.231 | 0.0304 |
| 0.65 | 246 | -0.045 | 0.1887 | 0.03 |
| 0.65 | 258 | -0.0785 | 0.1834 | 0.03 |
| 0.65 | 270 | 0.1057 | 0.1903 | 0.0301 |
| 0.65 | 282 | 0.1681 | 0.2031 | 0.0302 |
| 0.75 | 90 | -0.0465 | 0.202 | 0.03 |
| 0.75 | 102 | 0.1013 | 0.169 | 0.0301 |
| 0.75 | 114 | -0.0588 | 0.1565 | 0.03 |
| 0.75 | 126 | -0.1735 | 0.1745 | 0.0302 |
| 0.75 | 222 | -0.1148 | 0.2486 | 0.0301 |
| 0.75 | 234 | 0.0932 | 0.1961 | 0.0301 |
| 0.75 | 246 | 0.1632 | 0.1761 | 0.0302 |
| 0.75 | 258 | -0.1873 | 0.1475 | 0.0302 |
| 0.75 | 270 | -0.2022 | 0.1607 | 0.0303 |
| 0.75 | 282 | 0.0681 | 0.2174 | 0.03 |
| 0.85 | 90 | -0.5319 | 0.2083 | 0.0318 |
| 0.85 | 102 | 0.0841 | 0.173 | 0.03 |
| 0.85 | 114 | -0.1082 | 0.1381 | 0.0301 |
| 0.85 | 126 | 0.0877 | 0.1596 | 0.0301 |
| 0.85 | 138 | -0.1192 | 0.1836 | 0.0301 |
| 0.85 | 150 | -0.0369 | 0.2031 | 0.03 |
| 0.85 | 162 | 0.1724 | 0.2001 | 0.0302 |
| 0.85 | 174 | -0.2156 | 0.2298 | 0.0303 |
| 0.85 | 222 | 0.0292 | 0.1867 | 0.03 |
| 0.85 | 234 | 0.0912 | 0.1385 | 0.0301 |
| 0.85 | 246 | 0.103 | 0.1413 | 0.0301 |
| 0.85 | 258 | 0.0534 | 0.1392 | 0.03 |
| 0.85 | 270 | 0.0367 | 0.1472 | 0.03 |
| 0.85 | 282 | -0.3733 | 0.1733 | 0.0309 |
| 0.95 | 102 | -0.0271 | 0.2386 | 0.03 |
| 0.95 | 114 | 0.1729 | 0.1863 | 0.0302 |
| 0.95 | 126 | -0.0223 | 0.1878 | 0.03 |
| 0.95 | 138 | -0.3165 | 0.1858 | 0.0307 |
| 0.95 | 150 | -0.1199 | 0.2349 | 0.0301 |
| 0.95 | 162 | 0.5802 | 0.2144 | 0.0322 |
| 0.95 | 186 | 0.3084 | 0.2436 | 0.0306 |
| 0.95 | 210 | 0.1909 | 0.2083 | 0.0302 |
| 0.95 | 222 | 0.0364 | 0.2086 | 0.03 |
| 0.95 | 234 | 0.2075 | 0.1993 | 0.0303 |
| 0.95 | 246 | -0.3836 | 0.2262 | 0.031 |
| 0.95 | 258 | -0.2245 | 0.1737 | 0.0303 |
| 0.95 | 270 | -0.2347 | 0.1609 | 0.0304 |
| 0.35 | 306 | -0.1188 | 0.2282 | 0.0301 |
| 0.45 | 66 | -0.0904 | 0.1816 | 0.0301 |
| 0.45 | 78 | 0.2128 | 0.2169 | 0.0303 |
| 0.45 | 294 | 0.3563 | 0.2098 | 0.0308 |
| 0.55 | 66 | -0.1866 | 0.2136 | 0.0302 |
| 0.55 | 78 | -0.5261 | 0.1831 | 0.0318 |
| 0.55 | 270 | 0.1744 | 0.2301 | 0.0302 |
| 0.55 | 282 | -0.2411 | 0.2184 | 0.0304 |
| 0.65 | 66 | -0.0033 | 0.2559 | 0.03 |
| 0.65 | 78 | 0.0631 | 0.2345 | 0.03 |
| 0.65 | 90 | 0.0732 | 0.252 | 0.03 |
| 0.65 | 102 | -0.0349 | 0.2152 | 0.03 |
| 0.65 | 114 | -0.288 | 0.2049 | 0.0305 |
| 0.65 | 246 | -0.2447 | 0.2112 | 0.0304 |
| 0.65 | 258 | -0.2045 | 0.1967 | 0.0303 |
| 0.65 | 270 | 0.02 | 0.1868 | 0.03 |
| 0.65 | 282 | 0.4436 | 0.1694 | 0.0313 |
| 0.75 | 90 | 0.267 | 0.2101 | 0.0305 |
| 0.75 | 102 | 0.1898 | 0.1766 | 0.0302 |
| 0.75 | 114 | 0.0433 | 0.1583 | 0.03 |
| 0.75 | 126 | -0.0749 | 0.1758 | 0.03 |
| 0.75 | 222 | -0.4086 | 0.2284 | 0.0311 |
| 0.75 | 234 | 0.1119 | 0.1891 | 0.0301 |
| 0.75 | 246 | -0.1777 | 0.1699 | 0.0302 |
| 0.75 | 258 | 0.0456 | 0.1434 | 0.03 |
| 0.75 | 270 | -0.0607 | 0.1581 | 0.03 |
| 0.75 | 282 | -0.0793 | 0.2257 | 0.03 |
| 0.75 | 294 | -0.3988 | 0.2396 | 0.031 |
| 0.85 | 90 | 0.1445 | 0.2108 | 0.0301 |
| 0.85 | 102 | -0.0867 | 0.1496 | 0.0301 |
| 0.85 | 114 | -0.2035 | 0.1704 | 0.0303 |
| 0.85 | 126 | -0.1954 | 0.1513 | 0.0303 |
| 0.85 | 138 | -0.0043 | 0.1799 | 0.03 |
| 0.85 | 150 | 0.0524 | 0.2091 | 0.03 |
| 0.85 | 210 | -0.082 | 0.2493 | 0.03 |
| 0.85 | 222 | 0.4815 | 0.2154 | 0.0315 |
| 0.85 | 234 | -0.0489 | 0.1722 | 0.03 |
| 0.85 | 246 | -0.0742 | 0.1472 | 0.03 |
| 0.85 | 258 | 0.2546 | 0.1422 | 0.0304 |
| 0.85 | 270 | -0.0223 | 0.1544 | 0.03 |
| 0.85 | 282 | 0.0407 | 0.1878 | 0.03 |
| 0.95 | 102 | -0.1312 | 0.2562 | 0.0301 |
| 0.95 | 114 | 0.3642 | 0.252 | 0.0309 |
| 0.95 | 126 | 0.2538 | 0.2089 | 0.0304 |
| 0.95 | 138 | -0.4364 | 0.1963 | 0.0312 |
| 0.95 | 150 | 0.1851 | 0.0316 | |
| 0.95 | 222 | -0.0865 | 0.2376 | 0.03 |
| 0.95 | 234 | 0.0553 | 0.2056 | 0.03 |
| 0.95 | 246 | -0.0597 | 0.183 | 0.03 |
| 0.95 | 258 | -0.0946 | 0.1929 | 0.0301 |
| 0.95 | 270 | 0.2073 | 0.1869 | 0.0303 |
| 0.95 | 282 | -0.3847 | 0.2237 | 0.031 |