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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 : | 0.0415 GeV2 | |
|---|---|---|
| W : | 1355 GeV | |
| ε : | 0.9469 | |
| Ebeam : | 1.9889 GeV | |
| εL: | 0.1393 |
|
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 | 0.2521 | 0.2578 | 0.0304 |
| 0.15 | 42 | -0.1597 | 0.2446 | 0.0302 |
| 0.25 | 30 | -0.5042 | 0.2563 | 0.0316 |
| 0.25 | 66 | -0.0616 | 0.2284 | 0.03 |
| 0.25 | 294 | 0.1312 | 0.2248 | 0.0301 |
| 0.25 | 306 | 0.0632 | 0.2046 | 0.03 |
| 0.35 | 66 | -0.0961 | 0.1656 | 0.0301 |
| 0.35 | 78 | -0.0145 | 0.1632 | 0.03 |
| 0.35 | 90 | 0.3349 | 0.2074 | 0.0307 |
| 0.35 | 282 | 0.2735 | 0.2159 | 0.0305 |
| 0.35 | 294 | 0.0374 | 0.1585 | 0.03 |
| 0.35 | 306 | -0.2634 | 0.1765 | 0.0305 |
| 0.45 | 66 | 0.0582 | 0.1671 | 0.03 |
| 0.45 | 78 | -0.0956 | 0.1336 | 0.0301 |
| 0.45 | 90 | -0.2322 | 0.1505 | 0.0304 |
| 0.45 | 270 | -0.1746 | 0.2052 | 0.0302 |
| 0.45 | 282 | -0.0904 | 0.1506 | 0.0301 |
| 0.45 | 294 | -0.2354 | 0.1328 | 0.0304 |
| 0.45 | 306 | -0.377 | 0.172 | 0.0309 |
| 0.55 | 66 | 0.089 | 0.1955 | 0.0301 |
| 0.55 | 78 | 0.0685 | 0.1433 | 0.03 |
| 0.55 | 90 | -0.1122 | 0.1429 | 0.0301 |
| 0.55 | 102 | 0.1944 | 0.2347 | 0.0303 |
| 0.55 | 114 | -0.0121 | 0.2443 | 0.03 |
| 0.55 | 126 | -0.2732 | 0.2315 | 0.0305 |
| 0.55 | 246 | -0.0926 | 0.2273 | 0.0301 |
| 0.55 | 258 | -0.0472 | 0.2137 | 0.03 |
| 0.55 | 270 | -0.1213 | 0.1907 | 0.0301 |
| 0.55 | 282 | -0.0012 | 0.1612 | 0.03 |
| 0.55 | 294 | -0.2855 | 0.1715 | 0.0305 |
| 0.65 | 66 | -0.2588 | 0.2114 | 0.0304 |
| 0.65 | 78 | -0.0077 | 0.1487 | 0.03 |
| 0.65 | 90 | 0.1355 | 0.2229 | 0.0301 |
| 0.65 | 102 | 0.0545 | 0.1974 | 0.03 |
| 0.65 | 114 | -0.1618 | 0.1761 | 0.0302 |
| 0.65 | 126 | -0.0763 | 0.1589 | 0.03 |
| 0.65 | 138 | -0.0866 | 0.1789 | 0.03 |
| 0.65 | 210 | 0.1038 | 0.2408 | 0.0301 |
| 0.65 | 222 | 0.0486 | 0.1858 | 0.03 |
| 0.65 | 234 | -0.3752 | 0.1404 | 0.0309 |
| 0.65 | 246 | -0.1185 | 0.1352 | 0.0301 |
| 0.65 | 258 | -0.1193 | 0.1535 | 0.0301 |
| 0.65 | 270 | 0.0346 | 0.2098 | 0.03 |
| 0.65 | 282 | 0.0423 | 0.2341 | 0.03 |
| 0.75 | 78 | -0.0175 | 0.2401 | 0.03 |
| 0.75 | 90 | -0.0774 | 0.2521 | 0.03 |
| 0.75 | 102 | 0.2837 | 0.1778 | 0.0305 |
| 0.75 | 114 | 0.1616 | 0.1407 | 0.0302 |
| 0.75 | 126 | 0.054 | 0.1552 | 0.03 |
| 0.75 | 138 | 0.0352 | 0.1434 | 0.03 |
| 0.75 | 150 | 0.1506 | 0.1733 | 0.0302 |
| 0.75 | 162 | -0.035 | 0.2346 | 0.03 |
| 0.75 | 210 | 0.2746 | 0.1979 | 0.0305 |
| 0.75 | 222 | 0.1253 | 0.1603 | 0.0301 |
| 0.75 | 234 | -0.012 | 0.1365 | 0.03 |
| 0.75 | 246 | 0.0917 | 0.1238 | 0.0301 |
| 0.75 | 258 | -0.1066 | 0.1486 | 0.0301 |
| 0.75 | 270 | -0.0811 | 0.2062 | 0.03 |
| 0.85 | 102 | 0.0085 | 0.2728 | 0.03 |
| 0.85 | 114 | -0.0126 | 0.1857 | 0.03 |
| 0.85 | 126 | -0.1659 | 0.1457 | 0.0302 |
| 0.85 | 138 | 0.1221 | 0.1549 | 0.0301 |
| 0.85 | 150 | 0.2352 | 0.1873 | 0.0304 |
| 0.85 | 162 | 0.2496 | 0.2603 | 0.0304 |
| 0.85 | 198 | -0.1605 | 0.2584 | 0.0302 |
| 0.85 | 210 | 0.0645 | 0.1789 | 0.03 |
| 0.85 | 222 | 0.2299 | 0.1609 | 0.0304 |
| 0.85 | 234 | -0.1296 | 0.1486 | 0.0301 |
| 0.85 | 246 | 0.1231 | 0.1204 | 0.0301 |
| 0.85 | 258 | 0.2071 | 0.1326 | 0.0303 |
| 0.85 | 270 | -0.2534 | 0.1783 | 0.0304 |
| 0.95 | 210 | -0.1687 | 0.2719 | 0.0302 |
| 0.95 | 222 | 0.0511 | 0.2348 | 0.03 |
| 0.95 | 234 | 0.3104 | 0.2041 | 0.0306 |
| 0.95 | 246 | 0.0809 | 0.2398 | 0.03 |