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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 : | 0.0348 GeV2 | |
|---|---|---|
| W : | 1445 GeV | |
| ε : | 0.6309 | |
| Ebeam : | 1.0539 GeV | |
| εL: | 0.0501 |
|
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 |
|---|---|---|---|---|
| 0.25 | 54 | 0.2394 | 0.2164 | 0.0304 |
| 0.35 | 42 | 0.1444 | 0.1995 | 0.0301 |
| 0.35 | 54 | 0.052 | 0.1767 | 0.03 |
| 0.45 | 30 | 0.0068 | 0.2381 | 0.03 |
| 0.45 | 42 | -0.1656 | 0.1753 | 0.0302 |
| 0.45 | 54 | -0.0026 | 0.1766 | 0.03 |
| 0.45 | 66 | -0.5139 | 0.2212 | 0.0317 |
| 0.45 | 222 | 0.1236 | 0.2494 | 0.0301 |
| 0.45 | 234 | 0.304 | 0.2277 | 0.0306 |
| 0.45 | 246 | 0.0798 | 0.2324 | 0.03 |
| 0.45 | 258 | -0.0963 | 0.212 | 0.0301 |
| 0.55 | 42 | 0.2216 | 0.2353 | 0.0303 |
| 0.55 | 54 | -0.0779 | 0.2015 | 0.03 |
| 0.55 | 162 | 0.1881 | 0.2052 | 0.0302 |
| 0.55 | 186 | 0.0382 | 0.2363 | 0.03 |
| 0.55 | 222 | -0.2503 | 0.198 | 0.0304 |
| 0.55 | 234 | -0.0185 | 0.1778 | 0.03 |
| 0.55 | 246 | -0.2082 | 0.1578 | 0.0303 |
| 0.55 | 258 | -0.0023 | 0.1725 | 0.03 |
| 0.65 | 138 | 0.0115 | 0.2412 | 0.03 |
| 0.65 | 150 | -0.1092 | 0.2196 | 0.0301 |
| 0.65 | 162 | -0.1235 | 0.2007 | 0.0301 |
| 0.65 | 174 | 0.1519 | 0.2271 | 0.0302 |
| 0.65 | 186 | -0.0465 | 0.2549 | 0.03 |
| 0.65 | 222 | -0.0045 | 0.158 | 0.03 |
| 0.65 | 234 | -0.0176 | 0.1538 | 0.03 |
| 0.65 | 246 | 0.1699 | 0.16 | 0.0302 |
| 0.65 | 258 | -0.2467 | 0.1778 | 0.0304 |
| 0.65 | 270 | 0.1888 | 0.2499 | 0.0302 |
| 0.75 | 150 | -0.3668 | 0.2034 | 0.0309 |
| 0.75 | 162 | 0.2016 | 0.1973 | 0.0303 |
| 0.75 | 174 | 0.0074 | 0.2543 | 0.03 |
| 0.75 | 222 | 0.0936 | 0.2153 | 0.0301 |
| 0.75 | 234 | -0.1921 | 0.1752 | 0.0302 |
| 0.75 | 246 | -0.0887 | 0.1682 | 0.0301 |
| 0.75 | 258 | -0.0534 | 0.1656 | 0.03 |
| 0.75 | 270 | 0.0777 | 0.2295 | 0.03 |
| 0.85 | 222 | 0.4013 | 0.2254 | 0.0311 |
| 0.85 | 234 | -0.0448 | 0.1719 | 0.03 |
| 0.85 | 246 | 0.0189 | 0.1716 | 0.03 |
| 0.85 | 258 | -0.0301 | 0.1536 | 0.03 |
| 0.85 | 270 | -0.0019 | 0.2685 | 0.03 |
| 0.95 | 234 | -0.2122 | 0.2532 | 0.0303 |
| 0.95 | 258 | 0.0972 | 0.2053 | 0.0301 |