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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 : | 1625 GeV | |
| ε : | 0.905 | |
| Ebeam : | 2.999 GeV | |
| εL: | 0.1465 |
|
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 | 0.3336 | 0.2385 | 0.0307 |
| 0.25 | 66 | -0.1119 | 0.2625 | 0.0301 |
| 0.25 | 78 | 0.0298 | 0.2697 | 0.03 |
| 0.25 | 270 | 0.4514 | 0.2309 | 0.0313 |
| 0.25 | 282 | -0.1489 | 0.2425 | 0.0301 |
| 0.25 | 294 | -0.0305 | 0.2684 | 0.03 |
| 0.35 | 66 | 0.2566 | 0.1996 | 0.0304 |
| 0.35 | 114 | 0.2807 | 0.2612 | 0.0305 |
| 0.35 | 258 | 0.0773 | 0.262 | 0.03 |
| 0.35 | 270 | 0.5947 | 0.1495 | 0.0323 |
| 0.35 | 282 | 0.1661 | 0.2134 | 0.0302 |
| 0.35 | 294 | 0.0908 | 0.2523 | 0.0301 |
| 0.45 | 66 | 0.2816 | 0.2375 | 0.0305 |
| 0.45 | 78 | -0.0148 | 0.2802 | 0.03 |
| 0.45 | 90 | 0.3013 | 0.2557 | 0.0306 |
| 0.45 | 102 | -0.4092 | 0.1917 | 0.0311 |
| 0.45 | 114 | -0.0373 | 0.1845 | 0.03 |
| 0.45 | 126 | 0.6129 | 0.2102 | 0.0324 |
| 0.45 | 258 | 0.0187 | 0.23 | 0.03 |
| 0.45 | 270 | 0.2141 | 0.1988 | 0.0303 |
| 0.45 | 282 | 0.192 | 0.1988 | 0.0302 |
| 0.45 | 294 | -0.075 | 0.262 | 0.03 |
| 0.55 | 42 | -0.0639 | 0.2774 | 0.03 |
| 0.55 | 54 | -0.1658 | 0.2346 | 0.0302 |
| 0.55 | 66 | -0.3741 | 0.226 | 0.0309 |
| 0.55 | 90 | 0.1093 | 0.2163 | 0.0301 |
| 0.55 | 102 | -0.1925 | 0.1691 | 0.0302 |
| 0.55 | 114 | -0.1381 | 0.1803 | 0.0301 |
| 0.55 | 126 | 0.3032 | 0.2365 | 0.0306 |
| 0.55 | 138 | -0.4731 | 0.2121 | 0.0315 |
| 0.55 | 210 | 0.2039 | 0.2558 | 0.0303 |
| 0.55 | 222 | 0.1971 | 0.26 | 0.0303 |
| 0.55 | 234 | -0.2016 | 0.2568 | 0.0303 |
| 0.55 | 246 | -0.0511 | 0.2543 | 0.03 |
| 0.55 | 258 | -0.187 | 0.2257 | 0.0302 |
| 0.55 | 270 | -0.048 | 0.1767 | 0.03 |
| 0.55 | 282 | -0.0059 | 0.1951 | 0.03 |
| 0.55 | 294 | -0.3775 | 0.2185 | 0.0309 |
| 0.55 | 306 | -0.2169 | 0.2436 | 0.0303 |
| 0.65 | 54 | 0.2868 | 0.2429 | 0.0305 |
| 0.65 | 90 | 0.0623 | 0.1905 | 0.03 |
| 0.65 | 102 | -0.0258 | 0.1453 | 0.03 |
| 0.65 | 114 | 0.0382 | 0.1442 | 0.03 |
| 0.65 | 126 | 0.2948 | 0.1596 | 0.0306 |
| 0.65 | 138 | 0.0454 | 0.2089 | 0.03 |
| 0.65 | 150 | 0.1123 | 0.2426 | 0.0301 |
| 0.65 | 174 | 0.1186 | 0.2588 | 0.0301 |
| 0.65 | 186 | -0.1695 | 0.2582 | 0.0302 |
| 0.65 | 198 | 0.3332 | 0.2147 | 0.0307 |
| 0.65 | 210 | 0.0678 | 0.1962 | 0.03 |
| 0.65 | 222 | 0.1595 | 0.1727 | 0.0302 |
| 0.65 | 234 | -0.0236 | 0.221 | 0.03 |
| 0.65 | 246 | -0.159 | 0.2045 | 0.0302 |
| 0.65 | 258 | 0.0074 | 0.2428 | 0.03 |
| 0.65 | 270 | 0.0094 | 0.2349 | 0.03 |
| 0.65 | 282 | 0.0525 | 0.2078 | 0.03 |
| 0.65 | 294 | -0.2271 | 0.1694 | 0.0303 |
| 0.65 | 306 | 0.3257 | 0.2165 | 0.0307 |
| 0.75 | 66 | -0.2775 | 0.2536 | 0.0305 |
| 0.75 | 78 | 0.3083 | 0.1744 | 0.0306 |
| 0.75 | 90 | -0.1605 | 0.2033 | 0.0302 |
| 0.75 | 102 | 0.1183 | 0.1708 | 0.0301 |
| 0.75 | 114 | -0.0846 | 0.1438 | 0.03 |
| 0.75 | 126 | 0.2551 | 0.1603 | 0.0304 |
| 0.75 | 138 | -0.0585 | 0.2126 | 0.03 |
| 0.75 | 150 | 0.0079 | 0.261 | 0.03 |
| 0.75 | 174 | -0.1877 | 0.2703 | 0.0302 |
| 0.75 | 186 | -0.1212 | 0.1742 | 0.0301 |
| 0.75 | 198 | -0.0349 | 0.1795 | 0.03 |
| 0.75 | 210 | 0.1698 | 0.1713 | 0.0302 |
| 0.75 | 222 | -0.0118 | 0.151 | 0.03 |
| 0.75 | 234 | -0.0397 | 0.1566 | 0.03 |
| 0.75 | 246 | -0.0482 | 0.1848 | 0.03 |
| 0.75 | 258 | -0.153 | 0.2025 | 0.0302 |
| 0.75 | 270 | -0.4225 | 0.2518 | 0.0312 |
| 0.75 | 282 | -0.3151 | 0.1629 | 0.0307 |
| 0.75 | 294 | -0.1681 | 0.1615 | 0.0302 |
| 0.75 | 306 | 0.6854 | 0.2194 | 0.033 |
| 0.85 | 66 | 0.3504 | 0.1972 | 0.0308 |
| 0.85 | 78 | 0.097 | 0.1358 | 0.0301 |
| 0.85 | 90 | -0.0187 | 0.1557 | 0.03 |
| 0.85 | 102 | 0.2926 | 0.1917 | 0.0306 |
| 0.85 | 114 | -0.0925 | 0.2392 | 0.0301 |
| 0.85 | 126 | 0.0184 | 0.1777 | 0.03 |
| 0.85 | 138 | 0.1197 | 0.1963 | 0.0301 |
| 0.85 | 174 | 0.0145 | 0.2516 | 0.03 |
| 0.85 | 186 | 0.1699 | 0.2087 | 0.0302 |
| 0.85 | 198 | 0.1831 | 0.1786 | 0.0302 |
| 0.85 | 210 | -0.1193 | 0.1432 | 0.0301 |
| 0.85 | 222 | 0.0427 | 0.1408 | 0.03 |
| 0.85 | 234 | -0.078 | 0.1344 | 0.03 |
| 0.85 | 246 | 0.0567 | 0.1447 | 0.03 |
| 0.85 | 258 | -0.028 | 0.1627 | 0.03 |
| 0.85 | 270 | -0.1008 | 0.2271 | 0.0301 |
| 0.95 | 78 | 0.2858 | 0.2139 | 0.0305 |
| 0.95 | 90 | -0.0283 | 0.1888 | 0.03 |
| 0.95 | 102 | 0.2991 | 0.2224 | 0.0306 |
| 0.95 | 114 | 0.3436 | 0.2144 | 0.0308 |
| 0.95 | 174 | -0.1779 | 0.2704 | 0.0302 |
| 0.95 | 186 | -0.0151 | 0.2267 | 0.03 |
| 0.95 | 198 | -0.0369 | 0.2078 | 0.03 |
| 0.95 | 210 | -0.1477 | 0.1748 | 0.0301 |
| 0.95 | 222 | 0.2752 | 0.1763 | 0.0305 |
| 0.95 | 234 | -0.0949 | 0.1838 | 0.0301 |
| 0.95 | 246 | 0.1272 | 0.147 | 0.0301 |
| 0.95 | 258 | 0.0659 | 0.1511 | 0.03 |
| 0.95 | 270 | -0.0038 | 0.1443 | 0.03 |
| 0.95 | 282 | 0.0791 | 0.2081 | 0.03 |