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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 : | 1445 GeV | |
| ε : | 0.9129 | |
| Ebeam : | 1.9889 GeV | |
| εL: | 0.1009 |
|
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 | 0.0819 | 0.2191 | 0.03 |
| 0.15 | 42 | -0.2624 | 0.2512 | 0.0305 |
| 0.15 | 66 | 0.3163 | 0.2422 | 0.0307 |
| 0.15 | 342 | 0.2691 | 0.2634 | 0.0305 |
| 0.25 | 18 | 0.2936 | 0.2776 | 0.0306 |
| 0.25 | 30 | -0.0982 | 0.2257 | 0.0301 |
| 0.25 | 42 | -0.7274 | 0.1546 | 0.0333 |
| 0.25 | 54 | -0.1459 | 0.2013 | 0.0301 |
| 0.25 | 66 | -0.0418 | 0.1867 | 0.03 |
| 0.25 | 78 | -0.0663 | 0.1938 | 0.03 |
| 0.25 | 282 | 0.0282 | 0.2141 | 0.03 |
| 0.25 | 294 | 0.1502 | 0.1813 | 0.0302 |
| 0.25 | 306 | 0.2463 | 0.2317 | 0.0304 |
| 0.25 | 318 | -0.0119 | 0.2552 | 0.03 |
| 0.35 | 18 | 0.3499 | 0.2184 | 0.0308 |
| 0.35 | 30 | 0.1416 | 0.2197 | 0.0301 |
| 0.35 | 54 | 0.2511 | 0.2652 | 0.0304 |
| 0.35 | 66 | 0.0839 | 0.1571 | 0.03 |
| 0.35 | 78 | 0.0536 | 0.1534 | 0.03 |
| 0.35 | 90 | 0.2776 | 0.1893 | 0.0305 |
| 0.35 | 270 | -0.1661 | 0.1966 | 0.0302 |
| 0.35 | 282 | -0.2329 | 0.1508 | 0.0304 |
| 0.35 | 294 | -0.0119 | 0.1433 | 0.03 |
| 0.35 | 306 | 0.0983 | 0.1946 | 0.0301 |
| 0.35 | 318 | -0.1794 | 0.2778 | 0.0302 |
| 0.35 | 330 | 0.0396 | 0.2735 | 0.03 |
| 0.45 | 30 | 0.8219 | 0.2254 | 0.0342 |
| 0.45 | 66 | 0.1435 | 0.1674 | 0.0301 |
| 0.45 | 78 | 0.1897 | 0.1238 | 0.0302 |
| 0.45 | 90 | 0.1619 | 0.1501 | 0.0302 |
| 0.45 | 102 | -0.1353 | 0.1795 | 0.0301 |
| 0.45 | 114 | 0.227 | 0.2482 | 0.0303 |
| 0.45 | 126 | 0.267 | 0.257 | 0.0305 |
| 0.45 | 258 | 0.0453 | 0.2372 | 0.03 |
| 0.45 | 270 | -0.1099 | 0.1449 | 0.0301 |
| 0.45 | 282 | 0.1249 | 0.1422 | 0.0301 |
| 0.45 | 294 | -0.025 | 0.1592 | 0.03 |
| 0.45 | 306 | 0.4634 | 0.2164 | 0.0314 |
| 0.45 | 318 | -0.1403 | 0.2678 | 0.0301 |
| 0.45 | 330 | -0.1897 | 0.2912 | 0.0302 |
| 0.55 | 66 | -0.0519 | 0.2095 | 0.03 |
| 0.55 | 78 | 0.5006 | 0.1228 | 0.0316 |
| 0.55 | 90 | 0.1297 | 0.1495 | 0.0301 |
| 0.55 | 102 | 0.1199 | 0.1648 | 0.0301 |
| 0.55 | 114 | -0.0146 | 0.1737 | 0.03 |
| 0.55 | 126 | -0.0235 | 0.1746 | 0.03 |
| 0.55 | 138 | 0.1509 | 0.1924 | 0.0302 |
| 0.55 | 210 | -0.4109 | 0.2585 | 0.0311 |
| 0.55 | 222 | -0.0476 | 0.2131 | 0.03 |
| 0.55 | 234 | -0.218 | 0.1918 | 0.0303 |
| 0.55 | 246 | -0.0245 | 0.1666 | 0.03 |
| 0.55 | 258 | -0.145 | 0.1776 | 0.0301 |
| 0.55 | 270 | -0.094 | 0.1408 | 0.0301 |
| 0.55 | 282 | 0.0573 | 0.1165 | 0.03 |
| 0.55 | 294 | -0.2174 | 0.1789 | 0.0303 |
| 0.65 | 66 | 0.1707 | 0.1585 | 0.0302 |
| 0.65 | 78 | -0.1793 | 0.1891 | 0.0302 |
| 0.65 | 90 | -0.2029 | 0.1825 | 0.0303 |
| 0.65 | 102 | -0.196 | 0.1828 | 0.0303 |
| 0.65 | 114 | 0.1137 | 0.1443 | 0.0301 |
| 0.65 | 126 | -0.0842 | 0.1482 | 0.03 |
| 0.65 | 138 | -0.1685 | 0.1688 | 0.0302 |
| 0.65 | 150 | -0.2027 | 0.1997 | 0.0303 |
| 0.65 | 162 | -0.1168 | 0.236 | 0.0301 |
| 0.65 | 198 | -0.2138 | 0.2222 | 0.0303 |
| 0.65 | 210 | -0.1696 | 0.1808 | 0.0302 |
| 0.65 | 222 | 0.0751 | 0.1443 | 0.03 |
| 0.65 | 234 | 0.0004 | 0.1388 | 0.03 |
| 0.65 | 246 | -0.0804 | 0.1628 | 0.03 |
| 0.65 | 258 | 0.0461 | 0.1547 | 0.03 |
| 0.65 | 270 | -0.0001 | 0.1569 | 0.03 |
| 0.65 | 282 | -0.1482 | 0.176 | 0.0301 |
| 0.65 | 294 | -0.0226 | 0.1706 | 0.03 |
| 0.65 | 306 | 0.3487 | 0.1998 | 0.0308 |
| 0.75 | 66 | -0.1169 | 0.2426 | 0.0301 |
| 0.75 | 78 | 0.2361 | 0.2033 | 0.0304 |
| 0.75 | 90 | -0.188 | 0.2312 | 0.0302 |
| 0.75 | 102 | -0.2378 | 0.1902 | 0.0304 |
| 0.75 | 114 | -0.0318 | 0.1425 | 0.03 |
| 0.75 | 126 | 0.0299 | 0.1342 | 0.03 |
| 0.75 | 138 | 0.0604 | 0.1629 | 0.03 |
| 0.75 | 150 | 0.1332 | 0.1894 | 0.0301 |
| 0.75 | 162 | 0.1558 | 0.2198 | 0.0302 |
| 0.75 | 186 | -0.0555 | 0.246 | 0.03 |
| 0.75 | 198 | -0.4475 | 0.2448 | 0.0313 |
| 0.75 | 210 | 0.0068 | 0.1609 | 0.03 |
| 0.75 | 222 | 0.0784 | 0.1503 | 0.03 |
| 0.75 | 234 | -0.0316 | 0.1172 | 0.03 |
| 0.75 | 246 | -0.1754 | 0.1523 | 0.0302 |
| 0.75 | 258 | -0.104 | 0.1505 | 0.0301 |
| 0.75 | 270 | -0.0007 | 0.2196 | 0.03 |
| 0.75 | 282 | 0.0538 | 0.1531 | 0.03 |
| 0.75 | 294 | 0.0085 | 0.1643 | 0.03 |
| 0.85 | 90 | -0.1319 | 0.2686 | 0.0301 |
| 0.85 | 102 | 0.1386 | 0.2129 | 0.0301 |
| 0.85 | 114 | 0.1318 | 0.198 | 0.0301 |
| 0.85 | 126 | 0.1596 | 0.195 | 0.0302 |
| 0.85 | 138 | -0.0389 | 0.213 | 0.03 |
| 0.85 | 150 | 0.1501 | 0.2376 | 0.0301 |
| 0.85 | 198 | -0.0681 | 0.1857 | 0.03 |
| 0.85 | 210 | 0.212 | 0.1575 | 0.0303 |
| 0.85 | 222 | 0.2103 | 0.1679 | 0.0303 |
| 0.85 | 234 | -0.0203 | 0.1384 | 0.03 |
| 0.85 | 246 | 0.4885 | 0.1375 | 0.0316 |
| 0.85 | 258 | 0.0307 | 0.1822 | 0.03 |
| 0.85 | 270 | 0.1843 | 0.2395 | 0.0302 |
| 0.95 | 114 | 0.3379 | 0.2413 | 0.0308 |
| 0.95 | 126 | 0.0738 | 0.2593 | 0.03 |
| 0.95 | 210 | 0.0468 | 0.251 | 0.03 |
| 0.95 | 222 | 0.0345 | 0.2069 | 0.03 |
| 0.95 | 234 | -0.0355 | 0.189 | 0.03 |
| 0.95 | 246 | -0.3426 | 0.2092 | 0.0308 |
| 0.95 | 258 | 0.0516 | 0.26 | 0.03 |