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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 : | 0.0496 GeV2 | |
|---|---|---|
| W : | 1505 GeV | |
| ε : | 0.8844 | |
| Ebeam : | 1.9889 GeV | |
| εL: | 0.0751 |
|
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 | 0.5134 | 0.2117 | 0.0317 |
| 0.25 | 18 | -0.2655 | 0.2597 | 0.0305 |
| 0.25 | 54 | -0.1953 | 0.2189 | 0.0303 |
| 0.25 | 66 | -0.0433 | 0.1833 | 0.03 |
| 0.25 | 78 | 0.2194 | 0.2036 | 0.0303 |
| 0.25 | 90 | -0.333 | 0.2294 | 0.0307 |
| 0.25 | 270 | 0.3308 | 0.2665 | 0.0307 |
| 0.25 | 282 | -0.1383 | 0.1937 | 0.0301 |
| 0.25 | 294 | 0.0629 | 0.1961 | 0.03 |
| 0.25 | 306 | -0.1644 | 0.2205 | 0.0302 |
| 0.25 | 318 | -0.0171 | 0.2733 | 0.03 |
| 0.25 | 330 | -0.0386 | 0.281 | 0.03 |
| 0.35 | 18 | 0.0468 | 0.251 | 0.03 |
| 0.35 | 30 | 0.1407 | 0.2404 | 0.0301 |
| 0.35 | 42 | 0.2834 | 0.2587 | 0.0305 |
| 0.35 | 54 | 0.0966 | 0.2115 | 0.0301 |
| 0.35 | 66 | 0.048 | 0.1585 | 0.03 |
| 0.35 | 78 | -0.0348 | 0.1477 | 0.03 |
| 0.35 | 90 | -0.0619 | 0.1919 | 0.03 |
| 0.35 | 258 | -0.1167 | 0.2725 | 0.0301 |
| 0.35 | 270 | 0.2794 | 0.1561 | 0.0305 |
| 0.35 | 282 | -0.0767 | 0.1752 | 0.03 |
| 0.35 | 294 | 0.073 | 0.1606 | 0.03 |
| 0.35 | 306 | -0.144 | 0.2534 | 0.0301 |
| 0.35 | 330 | -0.1177 | 0.2542 | 0.0301 |
| 0.45 | 30 | 0.1314 | 0.2576 | 0.0301 |
| 0.45 | 66 | -0.2202 | 0.2114 | 0.0303 |
| 0.45 | 78 | 0.3305 | 0.1471 | 0.0307 |
| 0.45 | 90 | -0.0664 | 0.1593 | 0.03 |
| 0.45 | 102 | -0.0872 | 0.2097 | 0.0301 |
| 0.45 | 114 | -0.2379 | 0.2042 | 0.0304 |
| 0.45 | 126 | 0.3747 | 0.214 | 0.0309 |
| 0.45 | 138 | -0.0626 | 0.2674 | 0.03 |
| 0.45 | 246 | -0.0836 | 0.2482 | 0.03 |
| 0.45 | 258 | -0.0853 | 0.1784 | 0.03 |
| 0.45 | 270 | 0.0452 | 0.1471 | 0.03 |
| 0.45 | 282 | 0.2118 | 0.1498 | 0.0303 |
| 0.45 | 294 | 0.1181 | 0.1822 | 0.0301 |
| 0.45 | 318 | -0.0942 | 0.2576 | 0.0301 |
| 0.55 | 66 | 0.0679 | 0.2785 | 0.03 |
| 0.55 | 78 | -0.0422 | 0.1499 | 0.03 |
| 0.55 | 90 | 0.5074 | 0.1499 | 0.0317 |
| 0.55 | 102 | -0.241 | 0.1957 | 0.0304 |
| 0.55 | 114 | 0.1093 | 0.2002 | 0.0301 |
| 0.55 | 126 | -0.1955 | 0.1632 | 0.0303 |
| 0.55 | 138 | -0.0281 | 0.1945 | 0.03 |
| 0.55 | 150 | -0.4242 | 0.2109 | 0.0312 |
| 0.55 | 198 | -0.131 | 0.2298 | 0.0301 |
| 0.55 | 210 | 0.1573 | 0.1961 | 0.0302 |
| 0.55 | 222 | -0.0468 | 0.2033 | 0.03 |
| 0.55 | 234 | 0.0885 | 0.2003 | 0.0301 |
| 0.55 | 246 | 0.254 | 0.2064 | 0.0304 |
| 0.55 | 258 | 0.1231 | 0.161 | 0.0301 |
| 0.55 | 270 | -0.1235 | 0.1492 | 0.0301 |
| 0.55 | 282 | -0.0435 | 0.1549 | 0.03 |
| 0.55 | 294 | 0.0395 | 0.205 | 0.03 |
| 0.65 | 66 | 0.3668 | 0.1921 | 0.0309 |
| 0.65 | 78 | 0.1715 | 0.1778 | 0.0302 |
| 0.65 | 90 | 0.1332 | 0.2052 | 0.0301 |
| 0.65 | 102 | 0.1682 | 0.1773 | 0.0302 |
| 0.65 | 114 | 0.1126 | 0.182 | 0.0301 |
| 0.65 | 126 | 0.0139 | 0.1485 | 0.03 |
| 0.65 | 138 | 0.0921 | 0.1577 | 0.0301 |
| 0.65 | 150 | 0.2598 | 0.1956 | 0.0304 |
| 0.65 | 162 | 0.182 | 0.2625 | 0.0302 |
| 0.65 | 174 | 0.1187 | 0.2398 | 0.0301 |
| 0.65 | 186 | 0.6455 | 0.1917 | 0.0327 |
| 0.65 | 198 | 0.357 | 0.2097 | 0.0308 |
| 0.65 | 210 | -0.2594 | 0.1551 | 0.0304 |
| 0.65 | 222 | -0.2211 | 0.1503 | 0.0303 |
| 0.65 | 234 | -0.1623 | 0.1624 | 0.0302 |
| 0.65 | 246 | 0.267 | 0.149 | 0.0305 |
| 0.65 | 258 | 0.1123 | 0.1661 | 0.0301 |
| 0.65 | 270 | -0.1699 | 0.1833 | 0.0302 |
| 0.65 | 282 | 0.1718 | 0.1893 | 0.0302 |
| 0.65 | 294 | 0.0099 | 0.1858 | 0.03 |
| 0.65 | 306 | 0.2983 | 0.246 | 0.0306 |
| 0.75 | 66 | 0.0175 | 0.1949 | 0.03 |
| 0.75 | 78 | 0.0827 | 0.2156 | 0.03 |
| 0.75 | 90 | -0.0114 | 0.2318 | 0.03 |
| 0.75 | 102 | 0.3316 | 0.2111 | 0.0307 |
| 0.75 | 114 | 0.1036 | 0.1872 | 0.0301 |
| 0.75 | 126 | -0.1436 | 0.1514 | 0.0301 |
| 0.75 | 138 | 0.2332 | 0.1757 | 0.0304 |
| 0.75 | 150 | -0.0143 | 0.1772 | 0.03 |
| 0.75 | 162 | 0.2333 | 0.2362 | 0.0304 |
| 0.75 | 186 | -0.1476 | 0.2435 | 0.0301 |
| 0.75 | 198 | 0.1203 | 0.2158 | 0.0301 |
| 0.75 | 210 | -0.2454 | 0.173 | 0.0304 |
| 0.75 | 222 | -0.163 | 0.1509 | 0.0302 |
| 0.75 | 234 | 0.0028 | 0.1518 | 0.03 |
| 0.75 | 246 | 0.383 | 0.152 | 0.031 |
| 0.75 | 258 | 0.1366 | 0.1934 | 0.0301 |
| 0.75 | 270 | 0.1405 | 0.2282 | 0.0301 |
| 0.75 | 282 | -0.1467 | 0.1514 | 0.0301 |
| 0.75 | 294 | -0.0171 | 0.1726 | 0.03 |
| 0.85 | 90 | 0.3759 | 0.2289 | 0.0309 |
| 0.85 | 102 | 0.4012 | 0.1582 | 0.0311 |
| 0.85 | 114 | 0.302 | 0.1802 | 0.0306 |
| 0.85 | 126 | 0.4329 | 0.2073 | 0.0312 |
| 0.85 | 138 | -0.0219 | 0.2336 | 0.03 |
| 0.85 | 198 | -0.3873 | 0.1903 | 0.031 |
| 0.85 | 210 | -0.2515 | 0.1607 | 0.0304 |
| 0.85 | 222 | -0.0805 | 0.1409 | 0.03 |
| 0.85 | 234 | -0.0117 | 0.1453 | 0.03 |
| 0.85 | 246 | -0.033 | 0.1533 | 0.03 |
| 0.85 | 258 | 0.1161 | 0.1695 | 0.0301 |
| 0.95 | 210 | 0.1347 | 0.2639 | 0.0301 |
| 0.95 | 222 | 0.282 | 0.2103 | 0.0305 |
| 0.95 | 234 | -0.0983 | 0.2309 | 0.0301 |
| 0.95 | 246 | 0.4022 | 0.2768 | 0.0311 |