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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 : | 1535 GeV | |
| ε : | 0.9306 | |
| Ebeam : | 2.999 GeV | |
| εL: | 0.2071 |
|
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 | 0.0676 | 0.2647 | 0.03 |
| 0.05 | 66 | -0.2002 | 0.2139 | 0.0303 |
| 0.15 | 54 | 0.3674 | 0.186 | 0.0309 |
| 0.15 | 66 | -0.1626 | 0.2085 | 0.0302 |
| 0.15 | 78 | 0.2999 | 0.2144 | 0.0306 |
| 0.15 | 282 | 0.0755 | 0.2293 | 0.03 |
| 0.15 | 294 | -0.3316 | 0.2095 | 0.0307 |
| 0.25 | 54 | -0.2299 | 0.2153 | 0.0304 |
| 0.25 | 66 | 0.1313 | 0.1815 | 0.0301 |
| 0.25 | 78 | -0.1187 | 0.1948 | 0.0301 |
| 0.25 | 270 | -0.1224 | 0.2342 | 0.0301 |
| 0.25 | 282 | -0.0459 | 0.1751 | 0.03 |
| 0.25 | 294 | 0.0311 | 0.1773 | 0.03 |
| 0.25 | 306 | 0.1662 | 0.2346 | 0.0302 |
| 0.35 | 54 | 0.4518 | 0.2333 | 0.0313 |
| 0.35 | 66 | 0.2264 | 0.1705 | 0.0303 |
| 0.35 | 78 | 0.397 | 0.1724 | 0.031 |
| 0.35 | 90 | -0.4345 | 0.2067 | 0.0312 |
| 0.35 | 102 | -0.1219 | 0.2456 | 0.0301 |
| 0.35 | 270 | 0.15 | 0.1917 | 0.0301 |
| 0.35 | 282 | 0.0602 | 0.158 | 0.03 |
| 0.35 | 294 | 0.0128 | 0.1471 | 0.03 |
| 0.35 | 306 | 0.0642 | 0.2472 | 0.03 |
| 0.45 | 54 | -0.0916 | 0.27 | 0.0301 |
| 0.45 | 66 | 0.0747 | 0.206 | 0.03 |
| 0.45 | 78 | 0.2692 | 0.1812 | 0.0305 |
| 0.45 | 90 | -0.2516 | 0.247 | 0.0304 |
| 0.45 | 102 | 0.079 | 0.1777 | 0.03 |
| 0.45 | 114 | -0.4951 | 0.1782 | 0.0316 |
| 0.45 | 258 | 0.0478 | 0.2052 | 0.03 |
| 0.45 | 270 | 0.159 | 0.156 | 0.0302 |
| 0.45 | 282 | -0.0941 | 0.1423 | 0.0301 |
| 0.45 | 294 | -0.0008 | 0.179 | 0.03 |
| 0.55 | 42 | -0.0616 | 0.2453 | 0.03 |
| 0.55 | 54 | 0.1463 | 0.2061 | 0.0301 |
| 0.55 | 66 | -0.289 | 0.2246 | 0.0306 |
| 0.55 | 78 | -0.1619 | 0.2322 | 0.0302 |
| 0.55 | 90 | 0.0501 | 0.1593 | 0.03 |
| 0.55 | 102 | 0.0913 | 0.1364 | 0.0301 |
| 0.55 | 114 | 0.1236 | 0.1519 | 0.0301 |
| 0.55 | 126 | 0.1398 | 0.1853 | 0.0301 |
| 0.55 | 138 | -0.1128 | 0.2603 | 0.0301 |
| 0.55 | 222 | 0.183 | 0.2218 | 0.0302 |
| 0.55 | 234 | -0.0465 | 0.2142 | 0.03 |
| 0.55 | 246 | -0.1292 | 0.2392 | 0.0301 |
| 0.55 | 258 | -0.2163 | 0.1868 | 0.0303 |
| 0.55 | 270 | 0.1128 | 0.1443 | 0.0301 |
| 0.55 | 282 | -0.1325 | 0.1394 | 0.0301 |
| 0.55 | 294 | -0.3756 | 0.2028 | 0.0309 |
| 0.55 | 306 | 0.2244 | 0.1675 | 0.0303 |
| 0.65 | 54 | 0.3277 | 0.2413 | 0.0307 |
| 0.65 | 78 | -0.2438 | 0.2348 | 0.0304 |
| 0.65 | 90 | 0.012 | 0.1518 | 0.03 |
| 0.65 | 102 | -0.1001 | 0.1199 | 0.0301 |
| 0.65 | 114 | 0.1018 | 0.1339 | 0.0301 |
| 0.65 | 126 | 0.2611 | 0.1415 | 0.0305 |
| 0.65 | 138 | 0.5158 | 0.1699 | 0.0317 |
| 0.65 | 150 | -0.3542 | 0.2472 | 0.0308 |
| 0.65 | 198 | -0.3204 | 0.1791 | 0.0307 |
| 0.65 | 210 | 0.0269 | 0.1925 | 0.03 |
| 0.65 | 222 | 0.2153 | 0.1484 | 0.0303 |
| 0.65 | 234 | -0.0059 | 0.1523 | 0.03 |
| 0.65 | 246 | 0.3234 | 0.1415 | 0.0307 |
| 0.65 | 258 | -0.0191 | 0.1669 | 0.03 |
| 0.65 | 270 | 0.2036 | 0.1749 | 0.0303 |
| 0.65 | 282 | 0.0865 | 0.2434 | 0.03 |
| 0.65 | 294 | 0.0628 | 0.1412 | 0.03 |
| 0.65 | 306 | -0.0028 | 0.1426 | 0.03 |
| 0.75 | 66 | 0.3512 | 0.1771 | 0.0308 |
| 0.75 | 78 | -0.1571 | 0.1689 | 0.0302 |
| 0.75 | 90 | -0.321 | 0.1626 | 0.0307 |
| 0.75 | 102 | 0.0356 | 0.102 | 0.03 |
| 0.75 | 114 | -0.2588 | 0.1087 | 0.0304 |
| 0.75 | 126 | 0.1357 | 0.1301 | 0.0301 |
| 0.75 | 138 | 0.3961 | 0.147 | 0.031 |
| 0.75 | 150 | -0.3069 | 0.2239 | 0.0306 |
| 0.75 | 162 | 0.5058 | 0.2362 | 0.0317 |
| 0.75 | 174 | 0.1949 | 0.2057 | 0.0303 |
| 0.75 | 186 | -0.1142 | 0.1818 | 0.0301 |
| 0.75 | 198 | 0.1198 | 0.167 | 0.0301 |
| 0.75 | 210 | 0.1005 | 0.1582 | 0.0301 |
| 0.75 | 222 | -0.0448 | 0.142 | 0.03 |
| 0.75 | 234 | -0.1347 | 0.1278 | 0.0301 |
| 0.75 | 246 | -0.172 | 0.1198 | 0.0302 |
| 0.75 | 258 | 0.0225 | 0.1446 | 0.03 |
| 0.75 | 270 | -0.2157 | 0.2052 | 0.0303 |
| 0.75 | 282 | 0.3622 | 0.2115 | 0.0309 |
| 0.75 | 294 | -0.3591 | 0.1662 | 0.0308 |
| 0.85 | 66 | -0.1039 | 0.1489 | 0.0301 |
| 0.85 | 78 | 0.0357 | 0.1157 | 0.03 |
| 0.85 | 90 | 0.4128 | 0.1193 | 0.0311 |
| 0.85 | 102 | -0.1049 | 0.1666 | 0.0301 |
| 0.85 | 114 | -0.2359 | 0.1305 | 0.0304 |
| 0.85 | 126 | 0.2313 | 0.1471 | 0.0304 |
| 0.85 | 138 | 0.0522 | 0.1579 | 0.03 |
| 0.85 | 150 | 0.0001 | 0.2615 | 0.03 |
| 0.85 | 162 | 0.3913 | 0.2589 | 0.031 |
| 0.85 | 174 | 0.1124 | 0.2038 | 0.0301 |
| 0.85 | 186 | -0.2655 | 0.1703 | 0.0305 |
| 0.85 | 198 | -0.0672 | 0.1621 | 0.03 |
| 0.85 | 210 | 0.1207 | 0.1246 | 0.0301 |
| 0.85 | 222 | -0.0289 | 0.1225 | 0.03 |
| 0.85 | 234 | -0.2214 | 0.1072 | 0.0303 |
| 0.85 | 246 | -0.0686 | 0.1079 | 0.03 |
| 0.85 | 258 | 0.0923 | 0.124 | 0.0301 |
| 0.85 | 270 | 0.1373 | 0.1451 | 0.0301 |
| 0.85 | 282 | 0.2676 | 0.1682 | 0.0305 |
| 0.85 | 294 | -0.5929 | 0.1756 | 0.0323 |
| 0.95 | 66 | 0.6835 | 0.2162 | 0.033 |
| 0.95 | 78 | 0.42 | 0.1506 | 0.0312 |
| 0.95 | 90 | -0.137 | 0.1591 | 0.0301 |
| 0.95 | 102 | -0.0049 | 0.2363 | 0.03 |
| 0.95 | 126 | -0.2788 | 0.2645 | 0.0305 |
| 0.95 | 138 | 0.0406 | 0.2638 | 0.03 |
| 0.95 | 150 | 0.5375 | 0.2083 | 0.0319 |
| 0.95 | 174 | -0.6988 | 0.1723 | 0.0331 |
| 0.95 | 186 | 0.026 | 0.1846 | 0.03 |
| 0.95 | 198 | 0.1688 | 0.172 | 0.0302 |
| 0.95 | 210 | 0.0898 | 0.1641 | 0.0301 |
| 0.95 | 222 | 0.1056 | 0.1492 | 0.0301 |
| 0.95 | 234 | -0.0169 | 0.1311 | 0.03 |
| 0.95 | 246 | -0.0462 | 0.1319 | 0.03 |
| 0.95 | 258 | 0.0727 | 0.1109 | 0.03 |
| 0.95 | 270 | -0.0398 | 0.1279 | 0.03 |
| 0.95 | 282 | -0.0077 | 0.1187 | 0.03 |
| 0.95 | 294 | -0.1446 | 0.1631 | 0.0301 |