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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 : | 1475 GeV | |
| ε : | 0.8962 | |
| Ebeam : | 1.9889 GeV | |
| εL: | 0.1019 |
|
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 | 30 | -0.2363 | 0.2139 | 0.0304 |
| 0.15 | 42 | 0.323 | 0.2698 | 0.0307 |
| 0.15 | 306 | -0.2573 | 0.2475 | 0.0304 |
| 0.25 | 30 | -0.0884 | 0.2526 | 0.0301 |
| 0.25 | 54 | -0.0559 | 0.243 | 0.03 |
| 0.25 | 66 | 0.1791 | 0.1738 | 0.0302 |
| 0.25 | 78 | -0.0837 | 0.1919 | 0.03 |
| 0.25 | 282 | -0.3517 | 0.2187 | 0.0308 |
| 0.25 | 294 | -0.0298 | 0.1972 | 0.03 |
| 0.25 | 306 | -0.3907 | 0.2002 | 0.031 |
| 0.25 | 318 | -0.5007 | 0.2335 | 0.0316 |
| 0.25 | 330 | 0.3434 | 0.2573 | 0.0308 |
| 0.35 | 18 | 0.306 | 0.2234 | 0.0306 |
| 0.35 | 30 | -0.0835 | 0.2103 | 0.03 |
| 0.35 | 54 | -0.0226 | 0.2072 | 0.03 |
| 0.35 | 66 | 0.019 | 0.1517 | 0.03 |
| 0.35 | 78 | -0.2516 | 0.1427 | 0.0304 |
| 0.35 | 90 | -0.2596 | 0.1792 | 0.0304 |
| 0.35 | 270 | -0.2385 | 0.1854 | 0.0304 |
| 0.35 | 282 | -0.0121 | 0.145 | 0.03 |
| 0.35 | 294 | 0.0142 | 0.1446 | 0.03 |
| 0.35 | 306 | 0.5162 | 0.1868 | 0.0317 |
| 0.35 | 318 | -0.226 | 0.2607 | 0.0303 |
| 0.35 | 330 | -0.1636 | 0.2598 | 0.0302 |
| 0.35 | 342 | -0.0885 | 0.2826 | 0.0301 |
| 0.45 | 66 | 0.1364 | 0.1711 | 0.0301 |
| 0.45 | 78 | 0.1172 | 0.1305 | 0.0301 |
| 0.45 | 90 | -0.3559 | 0.1504 | 0.0308 |
| 0.45 | 102 | -0.0361 | 0.2331 | 0.03 |
| 0.45 | 114 | 0.3652 | 0.2457 | 0.0309 |
| 0.45 | 246 | 0.1043 | 0.2737 | 0.0301 |
| 0.45 | 258 | -0.0461 | 0.2063 | 0.03 |
| 0.45 | 270 | -0.0166 | 0.1496 | 0.03 |
| 0.45 | 282 | -0.0085 | 0.14 | 0.03 |
| 0.45 | 294 | 0.0869 | 0.1498 | 0.0301 |
| 0.45 | 306 | 0.0458 | 0.2173 | 0.03 |
| 0.45 | 318 | 0.0931 | 0.2525 | 0.0301 |
| 0.45 | 330 | 0.382 | 0.2295 | 0.031 |
| 0.55 | 66 | 0.4433 | 0.188 | 0.0313 |
| 0.55 | 78 | 0.0198 | 0.1576 | 0.03 |
| 0.55 | 90 | -0.1247 | 0.1614 | 0.0301 |
| 0.55 | 102 | -0.0393 | 0.1809 | 0.03 |
| 0.55 | 114 | 0.499 | 0.1413 | 0.0316 |
| 0.55 | 126 | -0.0099 | 0.1655 | 0.03 |
| 0.55 | 138 | -0.1205 | 0.2001 | 0.0301 |
| 0.55 | 150 | 0.5395 | 0.2363 | 0.0319 |
| 0.55 | 210 | -0.3243 | 0.2203 | 0.0307 |
| 0.55 | 222 | -0.0906 | 0.1805 | 0.0301 |
| 0.55 | 234 | 0.0002 | 0.1841 | 0.03 |
| 0.55 | 246 | -0.4089 | 0.184 | 0.0311 |
| 0.55 | 258 | 0.0465 | 0.162 | 0.03 |
| 0.55 | 270 | -0.0818 | 0.1495 | 0.03 |
| 0.55 | 282 | -0.1376 | 0.1329 | 0.0301 |
| 0.55 | 294 | -0.0642 | 0.1833 | 0.03 |
| 0.65 | 54 | -0.0589 | 0.2793 | 0.03 |
| 0.65 | 66 | 0.0695 | 0.2133 | 0.03 |
| 0.65 | 78 | 0.0924 | 0.1894 | 0.0301 |
| 0.65 | 90 | -0.041 | 0.1896 | 0.03 |
| 0.65 | 102 | -0.0113 | 0.1663 | 0.03 |
| 0.65 | 114 | 0.1611 | 0.1538 | 0.0302 |
| 0.65 | 126 | 0.1739 | 0.1351 | 0.0302 |
| 0.65 | 138 | -0.3109 | 0.1528 | 0.0306 |
| 0.65 | 150 | 0.0267 | 0.1921 | 0.03 |
| 0.65 | 162 | 0.3998 | 0.218 | 0.031 |
| 0.65 | 186 | -0.1561 | 0.2359 | 0.0302 |
| 0.65 | 198 | -0.1474 | 0.2485 | 0.0301 |
| 0.65 | 210 | -0.2837 | 0.1524 | 0.0305 |
| 0.65 | 222 | 0.0609 | 0.1513 | 0.03 |
| 0.65 | 234 | 0.0603 | 0.1495 | 0.03 |
| 0.65 | 246 | -0.0994 | 0.1657 | 0.0301 |
| 0.65 | 258 | -0.0374 | 0.1563 | 0.03 |
| 0.65 | 270 | 0.1805 | 0.1798 | 0.0302 |
| 0.65 | 282 | -0.2871 | 0.1832 | 0.0305 |
| 0.65 | 294 | -0.1185 | 0.1639 | 0.0301 |
| 0.65 | 306 | -0.1169 | 0.2102 | 0.0301 |
| 0.75 | 66 | -0.0406 | 0.2073 | 0.03 |
| 0.75 | 78 | 0.1092 | 0.1945 | 0.0301 |
| 0.75 | 90 | -0.2344 | 0.2519 | 0.0304 |
| 0.75 | 102 | 0.0859 | 0.1832 | 0.03 |
| 0.75 | 114 | -0.0877 | 0.1284 | 0.0301 |
| 0.75 | 126 | 0.0692 | 0.1468 | 0.03 |
| 0.75 | 138 | -0.1068 | 0.1654 | 0.0301 |
| 0.75 | 150 | 0.2524 | 0.1912 | 0.0304 |
| 0.75 | 162 | -0.0602 | 0.2486 | 0.03 |
| 0.75 | 174 | 0.3552 | 0.2363 | 0.0308 |
| 0.75 | 186 | -0.0571 | 0.2506 | 0.03 |
| 0.75 | 198 | 0.0423 | 0.2055 | 0.03 |
| 0.75 | 210 | -0.0784 | 0.1629 | 0.03 |
| 0.75 | 222 | 0.3052 | 0.1413 | 0.0306 |
| 0.75 | 234 | -0.0204 | 0.1201 | 0.03 |
| 0.75 | 246 | -0.0735 | 0.1482 | 0.03 |
| 0.75 | 258 | 0.2171 | 0.1656 | 0.0303 |
| 0.75 | 270 | -0.0066 | 0.2517 | 0.03 |
| 0.75 | 282 | -0.3948 | 0.1536 | 0.031 |
| 0.75 | 294 | 0.0114 | 0.1915 | 0.03 |
| 0.85 | 90 | 0.4465 | 0.1914 | 0.0313 |
| 0.85 | 102 | 0.081 | 0.1853 | 0.03 |
| 0.85 | 114 | 0.0302 | 0.1861 | 0.03 |
| 0.85 | 126 | 0.04 | 0.1795 | 0.03 |
| 0.85 | 138 | -0.0631 | 0.1746 | 0.03 |
| 0.85 | 150 | -0.2308 | 0.2178 | 0.0304 |
| 0.85 | 198 | 0.1425 | 0.2317 | 0.0301 |
| 0.85 | 210 | 0.0863 | 0.1781 | 0.03 |
| 0.85 | 222 | 0.096 | 0.1743 | 0.0301 |
| 0.85 | 234 | -0.1618 | 0.1352 | 0.0302 |
| 0.85 | 246 | -0.0169 | 0.1502 | 0.03 |
| 0.85 | 258 | -0.0259 | 0.179 | 0.03 |
| 0.85 | 270 | 0.6314 | 0.1661 | 0.0325 |
| 0.95 | 114 | -0.037 | 0.2515 | 0.03 |
| 0.95 | 210 | -0.067 | 0.2729 | 0.03 |
| 0.95 | 222 | 0.1082 | 0.2561 | 0.0301 |
| 0.95 | 234 | -0.0806 | 0.187 | 0.03 |
| 0.95 | 246 | 0.3924 | 0.1741 | 0.031 |
| 0.95 | 258 | 0.3459 | 0.2214 | 0.0308 |