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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 : | 0.1715 GeV2 | |
|---|---|---|
| W : | 1385 GeV | |
| ε : | 0.9599 | |
| Ebeam : | 2.999 GeV | |
| εL: | 0.3964 |
|
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 | 0.2204 | 0.2709 | 0.0303 |
| -0.05 | 306 | 0.2449 | 0.2175 | 0.0304 |
| 0.05 | 54 | 0.2009 | 0.1889 | 0.0303 |
| 0.05 | 66 | -0.0862 | 0.2185 | 0.03 |
| 0.05 | 294 | -0.5873 | 0.1931 | 0.0322 |
| 0.05 | 306 | 0.0849 | 0.1945 | 0.03 |
| 0.15 | 54 | -0.0046 | 0.1788 | 0.03 |
| 0.15 | 66 | -0.0048 | 0.1763 | 0.03 |
| 0.15 | 78 | -0.3538 | 0.2579 | 0.0308 |
| 0.15 | 294 | -0.3372 | 0.167 | 0.0307 |
| 0.15 | 306 | -0.0769 | 0.1733 | 0.03 |
| 0.15 | 318 | 0.2624 | 0.2221 | 0.0305 |
| 0.25 | 54 | 0.1522 | 0.158 | 0.0302 |
| 0.25 | 66 | -0.0682 | 0.1262 | 0.03 |
| 0.25 | 78 | -0.2624 | 0.1818 | 0.0305 |
| 0.25 | 282 | -0.0748 | 0.1826 | 0.03 |
| 0.25 | 294 | -0.1264 | 0.1598 | 0.0301 |
| 0.25 | 306 | -0.023 | 0.1788 | 0.03 |
| 0.35 | 54 | -0.0456 | 0.194 | 0.03 |
| 0.35 | 66 | -0.0007 | 0.1385 | 0.03 |
| 0.35 | 78 | 0.1128 | 0.1686 | 0.0301 |
| 0.35 | 282 | -0.1679 | 0.1524 | 0.0302 |
| 0.35 | 294 | 0.1947 | 0.1451 | 0.0303 |
| 0.35 | 306 | -0.1706 | 0.2106 | 0.0302 |
| 0.45 | 54 | 0.1294 | 0.1646 | 0.0301 |
| 0.45 | 66 | 0.0438 | 0.1367 | 0.03 |
| 0.45 | 78 | 0.0957 | 0.177 | 0.0301 |
| 0.45 | 90 | -0.1268 | 0.2238 | 0.0301 |
| 0.45 | 102 | -0.0322 | 0.267 | 0.03 |
| 0.45 | 270 | -0.1569 | 0.192 | 0.0302 |
| 0.45 | 282 | -0.0962 | 0.1494 | 0.0301 |
| 0.45 | 294 | -0.0967 | 0.1377 | 0.0301 |
| 0.45 | 306 | 0.027 | 0.2071 | 0.03 |
| 0.45 | 318 | -0.1003 | 0.2567 | 0.0301 |
| 0.55 | 54 | 0.2426 | 0.1758 | 0.0304 |
| 0.55 | 66 | 0.0722 | 0.2039 | 0.03 |
| 0.55 | 78 | -0.057 | 0.1676 | 0.03 |
| 0.55 | 90 | 0.3841 | 0.1376 | 0.031 |
| 0.55 | 102 | -0.0998 | 0.1589 | 0.0301 |
| 0.55 | 114 | -0.3264 | 0.2027 | 0.0307 |
| 0.55 | 258 | -0.0863 | 0.191 | 0.03 |
| 0.55 | 270 | -0.0297 | 0.1541 | 0.03 |
| 0.55 | 282 | 0.082 | 0.1554 | 0.03 |
| 0.55 | 294 | 0.1902 | 0.1634 | 0.0302 |
| 0.55 | 306 | -0.3403 | 0.1892 | 0.0308 |
| 0.65 | 66 | 0.0815 | 0.2277 | 0.03 |
| 0.65 | 78 | 0.1407 | 0.1502 | 0.0301 |
| 0.65 | 90 | 0.048 | 0.1183 | 0.03 |
| 0.65 | 102 | 0.1262 | 0.1109 | 0.0301 |
| 0.65 | 114 | -0.0871 | 0.1285 | 0.0301 |
| 0.65 | 126 | 0.2204 | 0.2066 | 0.0303 |
| 0.65 | 246 | 0.159 | 0.1553 | 0.0302 |
| 0.65 | 258 | 0.0231 | 0.1347 | 0.03 |
| 0.65 | 270 | -0.0389 | 0.1456 | 0.03 |
| 0.65 | 282 | 0.0954 | 0.1478 | 0.0301 |
| 0.65 | 294 | -0.0923 | 0.2478 | 0.0301 |
| 0.65 | 306 | 0.206 | 0.2104 | 0.0303 |
| 0.75 | 66 | -0.3425 | 0.1738 | 0.0308 |
| 0.75 | 78 | 0.0531 | 0.117 | 0.03 |
| 0.75 | 90 | 0.0293 | 0.0908 | 0.03 |
| 0.75 | 102 | -0.1874 | 0.0962 | 0.0302 |
| 0.75 | 114 | 0.2802 | 0.1022 | 0.0305 |
| 0.75 | 126 | 0.176 | 0.1256 | 0.0302 |
| 0.75 | 138 | -0.0041 | 0.1899 | 0.03 |
| 0.75 | 210 | -0.0752 | 0.2441 | 0.03 |
| 0.75 | 222 | -0.1109 | 0.1532 | 0.0301 |
| 0.75 | 234 | -0.1523 | 0.1395 | 0.0302 |
| 0.75 | 246 | 0.1119 | 0.1126 | 0.0301 |
| 0.75 | 258 | 0.1227 | 0.1083 | 0.0301 |
| 0.75 | 270 | 0.0638 | 0.1046 | 0.03 |
| 0.75 | 282 | -0.1032 | 0.1213 | 0.0301 |
| 0.75 | 294 | -0.0232 | 0.154 | 0.03 |
| 0.85 | 54 | -0.0822 | 0.2501 | 0.03 |
| 0.85 | 66 | 0.2054 | 0.1244 | 0.0303 |
| 0.85 | 78 | -0.1734 | 0.1509 | 0.0302 |
| 0.85 | 90 | 0.1107 | 0.0959 | 0.0301 |
| 0.85 | 102 | 0.0212 | 0.1001 | 0.03 |
| 0.85 | 114 | 0.1199 | 0.1064 | 0.0301 |
| 0.85 | 126 | 0.0541 | 0.1094 | 0.03 |
| 0.85 | 138 | 0.0179 | 0.138 | 0.03 |
| 0.85 | 150 | 0.1032 | 0.1862 | 0.0301 |
| 0.85 | 162 | -0.0896 | 0.2382 | 0.0301 |
| 0.85 | 174 | -0.0553 | 0.2125 | 0.03 |
| 0.85 | 186 | 0.2202 | 0.1831 | 0.0303 |
| 0.85 | 198 | 0.0153 | 0.1811 | 0.03 |
| 0.85 | 210 | 0.1213 | 0.1462 | 0.0301 |
| 0.85 | 222 | -0.0768 | 0.1186 | 0.03 |
| 0.85 | 234 | 0.1595 | 0.1038 | 0.0302 |
| 0.85 | 246 | 0.0128 | 0.0933 | 0.03 |
| 0.85 | 258 | 0.0636 | 0.094 | 0.03 |
| 0.85 | 270 | -0.1879 | 0.0931 | 0.0302 |
| 0.85 | 282 | 0.2 | 0.1053 | 0.0303 |
| 0.85 | 294 | -0.0539 | 0.1042 | 0.03 |
| 0.85 | 306 | -0.0283 | 0.186 | 0.03 |
| 0.95 | 54 | 0.3041 | 0.2059 | 0.0306 |
| 0.95 | 66 | 0.1288 | 0.1434 | 0.0301 |
| 0.95 | 78 | 0.11 | 0.2349 | 0.0301 |
| 0.95 | 90 | -0.4245 | 0.1797 | 0.0312 |
| 0.95 | 102 | 0.1194 | 0.1309 | 0.0301 |
| 0.95 | 114 | -0.2368 | 0.1328 | 0.0304 |
| 0.95 | 126 | 0.1552 | 0.1272 | 0.0302 |
| 0.95 | 138 | 0.2237 | 0.1671 | 0.0303 |
| 0.95 | 150 | 0.1641 | 0.1666 | 0.0302 |
| 0.95 | 162 | 0.5144 | 0.1785 | 0.0317 |
| 0.95 | 174 | -0.0454 | 0.1773 | 0.03 |
| 0.95 | 186 | 0.0229 | 0.1885 | 0.03 |
| 0.95 | 198 | 0.0828 | 0.1873 | 0.03 |
| 0.95 | 210 | -0.048 | 0.1415 | 0.03 |
| 0.95 | 222 | -0.079 | 0.1295 | 0.03 |
| 0.95 | 234 | -0.0342 | 0.1246 | 0.03 |
| 0.95 | 246 | -0.1797 | 0.1168 | 0.0302 |
| 0.95 | 258 | -0.1303 | 0.1165 | 0.0301 |
| 0.95 | 270 | 0.0919 | 0.11 | 0.0301 |
| 0.95 | 282 | 0.1418 | 0.1083 | 0.0301 |
| 0.95 | 294 | -0.254 | 0.1024 | 0.0304 |
| 0.95 | 306 | -0.0727 | 0.149 | 0.03 |