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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 : | 0.0291 GeV2 | |
|---|---|---|
| W : | 1265 GeV | |
| ε : | 0.9299 | |
| Ebeam : | 1.3383 GeV | |
| εL: | 0.1702 |
|
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 | 0.3873 | 0.3237 | 0.031 |
| 0.15 | 42 | -0.0821 | 0.1725 | 0.0301 |
| 0.25 | 30 | 0.1429 | 0.2079 | 0.0303 |
| 0.25 | 42 | -0.0061 | 0.1589 | 0.03 |
| 0.25 | 54 | -0.4658 | 0.1453 | 0.0315 |
| 0.35 | 30 | 0.0327 | 0.1922 | 0.03 |
| 0.45 | 42 | 0.3052 | 0.2875 | 0.0306 |
| 0.45 | 270 | -0.6221 | 0.2061 | 0.0325 |
| 0.45 | 282 | -0.2425 | 0.357 | 0.0304 |
| 0.55 | 234 | -0.0526 | 0.4216 | 0.03 |
| 0.55 | 246 | 0.0713 | 0.2705 | 0.03 |
| 0.55 | 258 | 0.0722 | 0.2413 | 0.03 |
| 0.55 | 270 | -0.1102 | 0.2143 | 0.0301 |
| 0.55 | 282 | 0.465 | 0.2406 | 0.0314 |
| 0.65 | 126 | -0.0966 | 0.3792 | 0.0301 |
| 0.65 | 138 | -0.703 | 0.2039 | 0.0331 |
| 0.65 | 222 | 0.7289 | 0.2017 | 0.0334 |
| 0.65 | 234 | -0.1714 | 0.2617 | 0.0302 |
| 0.65 | 246 | 0.1294 | 0.2137 | 0.0301 |
| 0.65 | 258 | -0.2443 | 0.202 | 0.0304 |
| 0.65 | 270 | -0.1481 | 0.2154 | 0.0301 |
| 0.65 | 282 | 0.3531 | 0.243 | 0.0308 |
| 0.75 | 126 | 0.576 | 0.1988 | 0.0321 |
| 0.75 | 138 | 0.343 | 0.2333 | 0.0308 |
| 0.75 | 150 | -0.1238 | 0.271 | 0.0301 |
| 0.75 | 162 | -0.0034 | 0.2986 | 0.03 |
| 0.75 | 174 | -0.0433 | 0.3201 | 0.03 |
| 0.75 | 186 | 0.1421 | 0.3553 | 0.0301 |
| 0.75 | 198 | 0.3636 | 0.3187 | 0.0309 |
| 0.75 | 210 | -0.4525 | 0.3553 | 0.0313 |
| 0.75 | 222 | -0.3026 | 0.2792 | 0.0306 |
| 0.75 | 234 | 0.1635 | 0.2123 | 0.0302 |
| 0.75 | 246 | 0.2317 | 0.1837 | 0.0304 |
| 0.75 | 258 | -0.0376 | 0.1839 | 0.03 |
| 0.75 | 270 | 0.2122 | 0.1907 | 0.0303 |
| 0.75 | 282 | 0.1541 | 0.266 | 0.0302 |
| 0.85 | 114 | 0.3567 | 0.3364 | 0.0308 |
| 0.85 | 126 | -0.5087 | 0.2375 | 0.0317 |
| 0.85 | 138 | 0.0904 | 0.2537 | 0.0301 |
| 0.85 | 150 | -0.1577 | 0.2129 | 0.0302 |
| 0.85 | 162 | 0.2893 | 0.2458 | 0.0306 |
| 0.85 | 174 | 0.2744 | 0.2258 | 0.0305 |
| 0.85 | 186 | -0.1715 | 0.2842 | 0.0302 |
| 0.85 | 198 | 0.0273 | 0.3226 | 0.03 |
| 0.85 | 210 | 0.0417 | 0.3846 | 0.03 |
| 0.85 | 222 | -0.4476 | 0.2784 | 0.0313 |
| 0.85 | 234 | -0.2599 | 0.2335 | 0.0304 |
| 0.85 | 246 | -0.2962 | 0.1941 | 0.0306 |
| 0.85 | 258 | 0.1825 | 0.1795 | 0.0302 |
| 0.85 | 270 | -0.282 | 0.2454 | 0.0305 |
| 0.95 | 138 | 0.2297 | 0.3465 | 0.0303 |
| 0.95 | 150 | -0.3106 | 0.3702 | 0.0306 |
| 0.95 | 162 | -0.8179 | 0.201 | 0.0342 |
| 0.95 | 174 | 0.1905 | 0.3443 | 0.0302 |
| 0.95 | 246 | 0.1196 | 0.3311 | 0.0301 |
| 0.95 | 258 | -0.3679 | 0.3536 | 0.0309 |
| 0.35 | 42 | 0.0223 | 0.2081 | 0.03 |
| 0.45 | 30 | -0.155 | 0.2432 | 0.0302 |
| 0.45 | 42 | -0.0129 | 0.21 | 0.03 |
| 0.45 | 258 | -0.0721 | 0.2596 | 0.03 |
| 0.45 | 270 | 0.6032 | 0.184 | 0.0323 |
| 0.55 | 246 | 0.0465 | 0.1935 | 0.03 |
| 0.55 | 258 | -0.227 | 0.1594 | 0.0303 |
| 0.55 | 270 | -0.3381 | 0.1453 | 0.0308 |
| 0.55 | 282 | -0.2068 | 0.2227 | 0.0303 |
| 0.65 | 126 | 0.5342 | 0.1909 | 0.0318 |
| 0.65 | 138 | -0.1912 | 0.2614 | 0.0302 |
| 0.65 | 150 | 0.0966 | 0.265 | 0.0301 |
| 0.65 | 222 | 0.1302 | 0.2708 | 0.0301 |
| 0.65 | 234 | 0.0047 | 0.1762 | 0.03 |
| 0.65 | 246 | -0.1375 | 0.1458 | 0.0301 |
| 0.65 | 258 | 0.0585 | 0.1302 | 0.03 |
| 0.65 | 270 | 0.1726 | 0.1341 | 0.0302 |
| 0.65 | 282 | -0.0699 | 0.2295 | 0.03 |
| 0.75 | 114 | 0.2941 | 0.2416 | 0.0306 |
| 0.75 | 126 | 0.0252 | 0.1824 | 0.03 |
| 0.75 | 138 | -0.2565 | 0.1845 | 0.0304 |
| 0.75 | 150 | 0.333 | 0.153 | 0.0307 |
| 0.75 | 162 | 0.2607 | 0.1877 | 0.0304 |
| 0.75 | 174 | -0.1875 | 0.1962 | 0.0302 |
| 0.75 | 186 | -0.1137 | 0.2265 | 0.0301 |
| 0.75 | 210 | -0.0534 | 0.2546 | 0.03 |
| 0.75 | 222 | 0.1076 | 0.1951 | 0.0301 |
| 0.75 | 234 | -0.1245 | 0.1553 | 0.0301 |
| 0.75 | 246 | -0.0019 | 0.1274 | 0.03 |
| 0.75 | 258 | 0.0099 | 0.1122 | 0.03 |
| 0.75 | 270 | -0.1527 | 0.1445 | 0.0302 |
| 0.75 | 282 | -0.2585 | 0.185 | 0.0304 |
| 0.85 | 114 | 0.5719 | 0.2362 | 0.0321 |
| 0.85 | 126 | -0.0032 | 0.1885 | 0.03 |
| 0.85 | 138 | 0.091 | 0.1692 | 0.0301 |
| 0.85 | 150 | -0.1013 | 0.1677 | 0.0301 |
| 0.85 | 162 | 0.4641 | 0.1608 | 0.0314 |
| 0.85 | 174 | -0.0937 | 0.185 | 0.0301 |
| 0.85 | 186 | -0.339 | 0.2092 | 0.0308 |
| 0.85 | 198 | -0.4935 | 0.2041 | 0.0316 |
| 0.85 | 210 | -0.2857 | 0.2361 | 0.0305 |
| 0.85 | 222 | 0.1672 | 0.1878 | 0.0302 |
| 0.85 | 234 | 0.2224 | 0.1601 | 0.0303 |
| 0.85 | 246 | -0.0464 | 0.1331 | 0.03 |
| 0.85 | 258 | -0.0203 | 0.1368 | 0.03 |
| 0.85 | 270 | -0.0047 | 0.1832 | 0.03 |
| 0.95 | 222 | -0.1465 | 0.2877 | 0.0301 |
| 0.95 | 234 | 0.1748 | 0.2566 | 0.0302 |
| 0.95 | 246 | -0.3295 | 0.2352 | 0.0307 |