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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 : | 0.0844 GeV2 | |
|---|---|---|
| W : | 1415 GeV | |
| ε : | 0.9143 | |
| Ebeam : | 1.9889 GeV | |
| εL: | 0.1869 |
|
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 | 66 | 0.2832 | 0.2343 | 0.0305 |
| 0.15 | 294 | -0.2036 | 0.241 | 0.0303 |
| 0.25 | 66 | -0.3105 | 0.1665 | 0.0306 |
| 0.25 | 78 | -0.3223 | 0.2343 | 0.0307 |
| 0.25 | 282 | -0.3462 | 0.2416 | 0.0308 |
| 0.25 | 294 | 0.337 | 0.1835 | 0.0307 |
| 0.25 | 306 | 0.2754 | 0.2775 | 0.0305 |
| 0.35 | 66 | -0.0269 | 0.1852 | 0.03 |
| 0.35 | 78 | 0.232 | 0.168 | 0.0304 |
| 0.35 | 90 | 0.0953 | 0.2537 | 0.0301 |
| 0.35 | 270 | 0.2209 | 0.2714 | 0.0303 |
| 0.35 | 282 | 0.2515 | 0.1766 | 0.0304 |
| 0.35 | 294 | 0.2343 | 0.1659 | 0.0304 |
| 0.35 | 306 | 0.2857 | 0.2431 | 0.0305 |
| 0.45 | 66 | -0.0458 | 0.2015 | 0.03 |
| 0.45 | 78 | 0.0507 | 0.151 | 0.03 |
| 0.45 | 90 | 0.5811 | 0.1476 | 0.0322 |
| 0.45 | 270 | -0.1765 | 0.2489 | 0.0302 |
| 0.45 | 282 | -0.0203 | 0.1877 | 0.03 |
| 0.45 | 294 | 0.0061 | 0.1696 | 0.03 |
| 0.45 | 306 | 0.4024 | 0.2104 | 0.0311 |
| 0.55 | 66 | -0.0111 | 0.2262 | 0.03 |
| 0.55 | 78 | 0.4608 | 0.1677 | 0.0314 |
| 0.55 | 90 | -0.1995 | 0.2222 | 0.0303 |
| 0.55 | 102 | 0.0958 | 0.2423 | 0.0301 |
| 0.55 | 114 | -0.2714 | 0.1897 | 0.0305 |
| 0.55 | 126 | -0.1922 | 0.2769 | 0.0302 |
| 0.55 | 246 | 0.177 | 0.2647 | 0.0302 |
| 0.55 | 258 | 0.2894 | 0.2456 | 0.0306 |
| 0.55 | 270 | 0.1098 | 0.1913 | 0.0301 |
| 0.55 | 282 | 0.1562 | 0.1786 | 0.0302 |
| 0.55 | 294 | -0.2998 | 0.2109 | 0.0306 |
| 0.65 | 66 | 0.0615 | 0.1962 | 0.03 |
| 0.65 | 78 | 0.0245 | 0.2223 | 0.03 |
| 0.65 | 90 | 0.1263 | 0.2278 | 0.0301 |
| 0.65 | 102 | -0.1863 | 0.1951 | 0.0302 |
| 0.65 | 114 | 0.0773 | 0.1864 | 0.03 |
| 0.65 | 126 | -0.2911 | 0.1734 | 0.0306 |
| 0.65 | 138 | 0.16 | 0.2336 | 0.0302 |
| 0.65 | 210 | 0.0239 | 0.2565 | 0.03 |
| 0.65 | 222 | 0.2075 | 0.2158 | 0.0303 |
| 0.65 | 234 | -0.1166 | 0.1737 | 0.0301 |
| 0.65 | 246 | -0.1911 | 0.1812 | 0.0302 |
| 0.65 | 258 | -0.0794 | 0.1843 | 0.03 |
| 0.65 | 270 | 0.2497 | 0.1911 | 0.0304 |
| 0.65 | 282 | 0.477 | 0.2358 | 0.0315 |
| 0.65 | 294 | 0.124 | 0.2427 | 0.0301 |
| 0.65 | 306 | 0.539 | 0.2397 | 0.0319 |
| 0.75 | 90 | 0.1806 | 0.2241 | 0.0302 |
| 0.75 | 102 | -0.1019 | 0.1725 | 0.0301 |
| 0.75 | 114 | 0.0377 | 0.1674 | 0.03 |
| 0.75 | 126 | 0.3775 | 0.1531 | 0.0309 |
| 0.75 | 138 | 0.1618 | 0.1766 | 0.0302 |
| 0.75 | 150 | 0.0494 | 0.2118 | 0.03 |
| 0.75 | 210 | 0.0147 | 0.2331 | 0.03 |
| 0.75 | 222 | 0.0508 | 0.2217 | 0.03 |
| 0.75 | 234 | 0.1322 | 0.1588 | 0.0301 |
| 0.75 | 246 | -0.0349 | 0.1435 | 0.03 |
| 0.75 | 258 | 0.01 | 0.1628 | 0.03 |
| 0.75 | 270 | -0.1075 | 0.2371 | 0.0301 |
| 0.75 | 294 | 0.2169 | 0.2798 | 0.0303 |
| 0.85 | 90 | 0.2928 | 0.2052 | 0.0306 |
| 0.85 | 102 | 0.229 | 0.2202 | 0.0303 |
| 0.85 | 114 | 0.1641 | 0.1501 | 0.0302 |
| 0.85 | 126 | 0.0433 | 0.1625 | 0.03 |
| 0.85 | 138 | 0.2895 | 0.1871 | 0.0306 |
| 0.85 | 150 | -0.13 | 0.2358 | 0.0301 |
| 0.85 | 210 | -0.2071 | 0.2568 | 0.0303 |
| 0.85 | 222 | -0.1214 | 0.168 | 0.0301 |
| 0.85 | 234 | -0.3354 | 0.155 | 0.0307 |
| 0.85 | 246 | -0.1121 | 0.1533 | 0.0301 |
| 0.85 | 258 | -0.3596 | 0.154 | 0.0309 |
| 0.85 | 270 | -0.05 | 0.1799 | 0.03 |
| 0.85 | 282 | 0.1386 | 0.2413 | 0.0301 |
| 0.95 | 102 | -0.315 | 0.2303 | 0.0307 |
| 0.95 | 138 | 0.0736 | 0.2654 | 0.03 |
| 0.95 | 222 | -0.3808 | 0.2473 | 0.031 |
| 0.95 | 234 | 0.1629 | 0.1988 | 0.0302 |
| 0.95 | 246 | -0.1236 | 0.1753 | 0.0301 |
| 0.95 | 258 | 0.0394 | 0.1836 | 0.03 |