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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 : | 0.2445 GeV2 | |
|---|---|---|
| W : | 1475 GeV | |
| ε : | 0.9338 | |
| Ebeam : | 2.999 GeV | |
| εL: | 0.3392 |
|
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 | 54 | 0.0894 | 0.1958 | 0.0301 |
| 0.05 | 66 | -0.2997 | 0.2252 | 0.0306 |
| 0.05 | 294 | -0.0984 | 0.2726 | 0.0301 |
| 0.05 | 306 | -0.119 | 0.2626 | 0.0301 |
| 0.15 | 54 | 0.4656 | 0.1767 | 0.0314 |
| 0.15 | 66 | 0.1255 | 0.1862 | 0.0301 |
| 0.15 | 282 | 0.2758 | 0.2756 | 0.0305 |
| 0.15 | 294 | -0.0818 | 0.1763 | 0.03 |
| 0.15 | 306 | -0.1036 | 0.1922 | 0.0301 |
| 0.25 | 54 | -0.1107 | 0.1984 | 0.0301 |
| 0.25 | 66 | 0.3241 | 0.1646 | 0.0307 |
| 0.25 | 78 | 0.0321 | 0.2236 | 0.03 |
| 0.25 | 282 | -0.2182 | 0.1791 | 0.0303 |
| 0.25 | 294 | 0.3704 | 0.1671 | 0.0309 |
| 0.25 | 306 | -0.2369 | 0.211 | 0.0304 |
| 0.35 | 54 | 0.437 | 0.2285 | 0.0312 |
| 0.35 | 66 | -0.128 | 0.182 | 0.0301 |
| 0.35 | 78 | -0.2375 | 0.2475 | 0.0304 |
| 0.35 | 270 | 0.2706 | 0.2306 | 0.0305 |
| 0.35 | 282 | 0.1213 | 0.1589 | 0.0301 |
| 0.35 | 294 | -0.104 | 0.1729 | 0.0301 |
| 0.35 | 306 | -0.203 | 0.2635 | 0.0303 |
| 0.45 | 42 | -0.2432 | 0.2708 | 0.0304 |
| 0.45 | 54 | -0.1275 | 0.2773 | 0.0301 |
| 0.45 | 66 | -0.0486 | 0.2221 | 0.03 |
| 0.45 | 90 | -0.1279 | 0.2104 | 0.0301 |
| 0.45 | 102 | -0.1541 | 0.187 | 0.0302 |
| 0.45 | 270 | 0.1057 | 0.2003 | 0.0301 |
| 0.45 | 282 | -0.1782 | 0.1532 | 0.0302 |
| 0.45 | 294 | -0.0051 | 0.1533 | 0.03 |
| 0.45 | 306 | 0.1559 | 0.2245 | 0.0302 |
| 0.45 | 318 | 0.3414 | 0.254 | 0.0308 |
| 0.55 | 54 | -0.3976 | 0.2304 | 0.031 |
| 0.55 | 78 | 0.0104 | 0.2023 | 0.03 |
| 0.55 | 90 | -0.0072 | 0.1453 | 0.03 |
| 0.55 | 102 | 0.1444 | 0.145 | 0.0301 |
| 0.55 | 114 | 0.1376 | 0.1623 | 0.0301 |
| 0.55 | 126 | 0.1508 | 0.2701 | 0.0302 |
| 0.55 | 246 | 0.0634 | 0.2681 | 0.03 |
| 0.55 | 258 | 0.603 | 0.1749 | 0.0323 |
| 0.55 | 270 | -0.3362 | 0.203 | 0.0307 |
| 0.55 | 282 | 0.0347 | 0.1862 | 0.03 |
| 0.55 | 294 | -0.3549 | 0.2135 | 0.0308 |
| 0.55 | 306 | 0.0279 | 0.1905 | 0.03 |
| 0.65 | 78 | -0.0379 | 0.1607 | 0.03 |
| 0.65 | 90 | -0.1487 | 0.1386 | 0.0301 |
| 0.65 | 102 | 0.4376 | 0.1268 | 0.0313 |
| 0.65 | 114 | -0.0171 | 0.1568 | 0.03 |
| 0.65 | 126 | -0.0828 | 0.1822 | 0.03 |
| 0.65 | 222 | -0.3975 | 0.2283 | 0.031 |
| 0.65 | 234 | -0.4483 | 0.188 | 0.0313 |
| 0.65 | 246 | 0.0962 | 0.1888 | 0.0301 |
| 0.65 | 258 | -0.1225 | 0.1786 | 0.0301 |
| 0.65 | 270 | -0.1704 | 0.1947 | 0.0302 |
| 0.65 | 282 | -0.5034 | 0.2304 | 0.0316 |
| 0.65 | 306 | 0.2885 | 0.2274 | 0.0305 |
| 0.75 | 54 | -0.1722 | 0.2551 | 0.0302 |
| 0.75 | 66 | 0.112 | 0.1863 | 0.0301 |
| 0.75 | 78 | 0.2364 | 0.1705 | 0.0304 |
| 0.75 | 90 | 0.2194 | 0.114 | 0.0303 |
| 0.75 | 102 | -0.0748 | 0.1289 | 0.03 |
| 0.75 | 114 | 0.1376 | 0.1432 | 0.0301 |
| 0.75 | 126 | 0.0786 | 0.1564 | 0.03 |
| 0.75 | 138 | -0.117 | 0.19 | 0.0301 |
| 0.75 | 150 | 0.4226 | 0.2396 | 0.0312 |
| 0.75 | 198 | -0.2492 | 0.2364 | 0.0304 |
| 0.75 | 210 | -0.4431 | 0.1821 | 0.0313 |
| 0.75 | 222 | -0.0577 | 0.1676 | 0.03 |
| 0.75 | 234 | 0.0432 | 0.1599 | 0.03 |
| 0.75 | 246 | 0.0536 | 0.1456 | 0.03 |
| 0.75 | 258 | -0.0901 | 0.1509 | 0.0301 |
| 0.75 | 270 | -0.1514 | 0.1683 | 0.0302 |
| 0.75 | 282 | -0.059 | 0.2183 | 0.03 |
| 0.75 | 294 | -0.1434 | 0.2512 | 0.0301 |
| 0.85 | 54 | 0.1878 | 0.1942 | 0.0302 |
| 0.85 | 66 | 0.1691 | 0.1403 | 0.0302 |
| 0.85 | 78 | -0.2927 | 0.196 | 0.0306 |
| 0.85 | 90 | 0.2365 | 0.1745 | 0.0304 |
| 0.85 | 102 | 0.0604 | 0.1316 | 0.03 |
| 0.85 | 114 | 0.1459 | 0.1391 | 0.0301 |
| 0.85 | 126 | 0.1481 | 0.1685 | 0.0301 |
| 0.85 | 138 | 0.0556 | 0.1976 | 0.03 |
| 0.85 | 186 | 0.146 | 0.2412 | 0.0301 |
| 0.85 | 198 | 0.0218 | 0.1935 | 0.03 |
| 0.85 | 210 | 0.1605 | 0.1747 | 0.0302 |
| 0.85 | 222 | -0.4433 | 0.132 | 0.0313 |
| 0.85 | 234 | -0.0879 | 0.134 | 0.0301 |
| 0.85 | 246 | -0.1742 | 0.1218 | 0.0302 |
| 0.85 | 258 | 0.0918 | 0.1141 | 0.0301 |
| 0.85 | 270 | 0.1859 | 0.1182 | 0.0302 |
| 0.85 | 282 | 0.0552 | 0.1466 | 0.03 |
| 0.85 | 294 | -0.0885 | 0.1947 | 0.0301 |
| 0.85 | 306 | -0.2589 | 0.1888 | 0.0304 |
| 0.95 | 54 | 0.1725 | 0.2491 | 0.0302 |
| 0.95 | 66 | -0.0183 | 0.192 | 0.03 |
| 0.95 | 78 | 0.193 | 0.2326 | 0.0302 |
| 0.95 | 114 | 0.1544 | 0.2167 | 0.0302 |
| 0.95 | 126 | -0.1568 | 0.2525 | 0.0302 |
| 0.95 | 138 | 0.1677 | 0.2608 | 0.0302 |
| 0.95 | 186 | -0.3387 | 0.196 | 0.0308 |
| 0.95 | 198 | -0.1514 | 0.2021 | 0.0302 |
| 0.95 | 210 | 0.0376 | 0.2 | 0.03 |
| 0.95 | 222 | 0.1536 | 0.1934 | 0.0302 |
| 0.95 | 234 | -0.0452 | 0.169 | 0.03 |
| 0.95 | 246 | -0.1869 | 0.1662 | 0.0302 |
| 0.95 | 258 | -0.279 | 0.1536 | 0.0305 |
| 0.95 | 270 | 0.2043 | 0.1538 | 0.0303 |
| 0.95 | 282 | -0.1569 | 0.1331 | 0.0302 |
| 0.95 | 294 | -0.061 | 0.1382 | 0.03 |
| 0.95 | 306 | 0.0111 | 0.1482 | 0.03 |
| 0.95 | 318 | 0.0829 | 0.193 | 0.03 |