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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 : | 0.0593 GeV2 | |
|---|---|---|
| W : | 1445 GeV | |
| ε : | 0.9098 | |
| Ebeam : | 1.9889 GeV | |
| εL: | 0.1183 |
|
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 |
|---|---|---|---|---|
| 0.05 | 30 | 0.1495 | 0.2178 | 0.0301 |
| 0.15 | 30 | -0.0477 | 0.2504 | 0.03 |
| 0.15 | 42 | 0.0069 | 0.2338 | 0.03 |
| 0.15 | 342 | 0.3771 | 0.2664 | 0.0309 |
| 0.25 | 18 | 0.2704 | 0.2352 | 0.0305 |
| 0.25 | 30 | 0.2824 | 0.2574 | 0.0305 |
| 0.25 | 42 | -0.4218 | 0.2192 | 0.0312 |
| 0.25 | 54 | -0.0772 | 0.2624 | 0.03 |
| 0.25 | 66 | 0.2004 | 0.1914 | 0.0303 |
| 0.25 | 78 | 0.3301 | 0.1928 | 0.0307 |
| 0.25 | 282 | -0.1771 | 0.1995 | 0.0302 |
| 0.25 | 294 | -0.0388 | 0.1896 | 0.03 |
| 0.25 | 306 | 0.0899 | 0.274 | 0.0301 |
| 0.25 | 318 | -0.0524 | 0.2386 | 0.03 |
| 0.25 | 330 | -0.2304 | 0.2583 | 0.0304 |
| 0.25 | 342 | -0.5377 | 0.2315 | 0.0319 |
| 0.35 | 18 | 0.2921 | 0.2411 | 0.0306 |
| 0.35 | 30 | -0.211 | 0.2281 | 0.0303 |
| 0.35 | 54 | 0.4457 | 0.2525 | 0.0313 |
| 0.35 | 66 | 0.1409 | 0.1535 | 0.0301 |
| 0.35 | 78 | -0.0263 | 0.1429 | 0.03 |
| 0.35 | 90 | 0.1745 | 0.2085 | 0.0302 |
| 0.35 | 270 | 0.1017 | 0.216 | 0.0301 |
| 0.35 | 282 | -0.0158 | 0.1491 | 0.03 |
| 0.35 | 294 | 0.0266 | 0.1448 | 0.03 |
| 0.35 | 306 | 0.0189 | 0.1953 | 0.03 |
| 0.35 | 318 | 0.3317 | 0.2554 | 0.0307 |
| 0.35 | 330 | -0.0108 | 0.2719 | 0.03 |
| 0.45 | 66 | -0.1924 | 0.1542 | 0.0302 |
| 0.45 | 78 | -0.0901 | 0.136 | 0.0301 |
| 0.45 | 90 | 0.193 | 0.157 | 0.0302 |
| 0.45 | 102 | 0.2256 | 0.2471 | 0.0303 |
| 0.45 | 114 | -0.0831 | 0.2244 | 0.03 |
| 0.45 | 126 | -0.217 | 0.2216 | 0.0303 |
| 0.45 | 258 | 0.0687 | 0.2221 | 0.03 |
| 0.45 | 270 | -0.08 | 0.1462 | 0.03 |
| 0.45 | 282 | -0.1996 | 0.1323 | 0.0303 |
| 0.45 | 294 | -0.209 | 0.1438 | 0.0303 |
| 0.45 | 306 | -0.2926 | 0.1891 | 0.0306 |
| 0.55 | 66 | -0.0278 | 0.2314 | 0.03 |
| 0.55 | 78 | 0.1556 | 0.1456 | 0.0302 |
| 0.55 | 90 | -0.186 | 0.175 | 0.0302 |
| 0.55 | 102 | -0.0312 | 0.1698 | 0.03 |
| 0.55 | 114 | 0.1864 | 0.1684 | 0.0302 |
| 0.55 | 126 | 0.0638 | 0.1757 | 0.03 |
| 0.55 | 138 | -0.0558 | 0.2234 | 0.03 |
| 0.55 | 222 | 0.1132 | 0.2489 | 0.0301 |
| 0.55 | 234 | 0.0466 | 0.1999 | 0.03 |
| 0.55 | 246 | -0.1207 | 0.1808 | 0.0301 |
| 0.55 | 258 | -0.125 | 0.1719 | 0.0301 |
| 0.55 | 270 | -0.0742 | 0.1503 | 0.03 |
| 0.55 | 282 | 0.2019 | 0.1394 | 0.0303 |
| 0.55 | 294 | 0.3486 | 0.1683 | 0.0308 |
| 0.55 | 306 | 0.0384 | 0.2104 | 0.03 |
| 0.65 | 66 | -0.3355 | 0.1604 | 0.0307 |
| 0.65 | 78 | -0.0018 | 0.1699 | 0.03 |
| 0.65 | 90 | -0.0453 | 0.1809 | 0.03 |
| 0.65 | 102 | 0.1658 | 0.1596 | 0.0302 |
| 0.65 | 114 | 0.1744 | 0.1429 | 0.0302 |
| 0.65 | 126 | 0.0806 | 0.1467 | 0.03 |
| 0.65 | 138 | -0.1341 | 0.1455 | 0.0301 |
| 0.65 | 150 | -0.0007 | 0.2011 | 0.03 |
| 0.65 | 162 | -0.2499 | 0.2235 | 0.0304 |
| 0.65 | 198 | 0.0614 | 0.2448 | 0.03 |
| 0.65 | 210 | 0.3779 | 0.1778 | 0.0309 |
| 0.65 | 222 | -0.1518 | 0.1509 | 0.0302 |
| 0.65 | 234 | 0.2119 | 0.1604 | 0.0303 |
| 0.65 | 246 | -0.1956 | 0.1546 | 0.0303 |
| 0.65 | 258 | 0.1504 | 0.1532 | 0.0302 |
| 0.65 | 270 | 0.0006 | 0.163 | 0.03 |
| 0.65 | 282 | -0.0373 | 0.1781 | 0.03 |
| 0.65 | 294 | -0.2117 | 0.1714 | 0.0303 |
| 0.65 | 306 | 0.1797 | 0.1962 | 0.0302 |
| 0.75 | 66 | 0.1586 | 0.2231 | 0.0302 |
| 0.75 | 78 | 0.4121 | 0.1779 | 0.0311 |
| 0.75 | 90 | 0.0677 | 0.2144 | 0.03 |
| 0.75 | 102 | -0.013 | 0.1978 | 0.03 |
| 0.75 | 114 | -0.201 | 0.1355 | 0.0303 |
| 0.75 | 126 | 0.1363 | 0.1355 | 0.0301 |
| 0.75 | 138 | 0.0579 | 0.1492 | 0.03 |
| 0.75 | 150 | -0.2123 | 0.1969 | 0.0303 |
| 0.75 | 162 | -0.0066 | 0.2529 | 0.03 |
| 0.75 | 174 | -0.0249 | 0.2596 | 0.03 |
| 0.75 | 186 | 0.562 | 0.2326 | 0.032 |
| 0.75 | 198 | -0.1989 | 0.201 | 0.0303 |
| 0.75 | 210 | 0.0867 | 0.1691 | 0.0301 |
| 0.75 | 222 | 0.1958 | 0.1462 | 0.0303 |
| 0.75 | 234 | 0.0229 | 0.1274 | 0.03 |
| 0.75 | 246 | 0.2218 | 0.1226 | 0.0303 |
| 0.75 | 258 | -0.1501 | 0.1721 | 0.0301 |
| 0.75 | 270 | 0.011 | 0.2127 | 0.03 |
| 0.75 | 282 | -0.3241 | 0.1883 | 0.0307 |
| 0.75 | 294 | 0.2255 | 0.2063 | 0.0303 |
| 0.85 | 90 | 0.1581 | 0.2405 | 0.0302 |
| 0.85 | 102 | 0.423 | 0.181 | 0.0312 |
| 0.85 | 114 | 0.0479 | 0.2033 | 0.03 |
| 0.85 | 126 | 0.0839 | 0.1809 | 0.03 |
| 0.85 | 138 | 0.0259 | 0.1711 | 0.03 |
| 0.85 | 150 | 0.0407 | 0.2547 | 0.03 |
| 0.85 | 198 | -0.2182 | 0.2288 | 0.0303 |
| 0.85 | 210 | 0.1186 | 0.1841 | 0.0301 |
| 0.85 | 222 | 0.0148 | 0.1448 | 0.03 |
| 0.85 | 234 | -0.1496 | 0.119 | 0.0301 |
| 0.85 | 246 | -0.1562 | 0.1342 | 0.0302 |
| 0.85 | 258 | -0.0302 | 0.1522 | 0.03 |
| 0.85 | 270 | -0.2847 | 0.183 | 0.0305 |
| 0.95 | 102 | -0.2996 | 0.2851 | 0.0306 |
| 0.95 | 114 | 0.0462 | 0.2749 | 0.03 |
| 0.95 | 126 | 0.232 | 0.2388 | 0.0304 |
| 0.95 | 222 | -0.3172 | 0.2089 | 0.0307 |
| 0.95 | 234 | -0.0113 | 0.1756 | 0.03 |
| 0.95 | 246 | -0.1789 | 0.1544 | 0.0302 |
| 0.95 | 258 | -0.075 | 0.2012 | 0.03 |