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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 : | 0.101 GeV2 | |
|---|---|---|
| W : | 1385 GeV | |
| ε : | 0.9405 | |
| Ebeam : | 2.2596 GeV | |
| εL: | 0.2578 |
|
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 | 66 | -0.2206 | 0.2129 | 0.0303 |
| 0.25 | 78 | 0.3827 | 0.2291 | 0.031 |
| 0.25 | 294 | -0.2927 | 0.2157 | 0.0306 |
| 0.35 | 66 | -0.0525 | 0.2253 | 0.03 |
| 0.35 | 78 | 0.0394 | 0.1957 | 0.03 |
| 0.35 | 282 | 0.0155 | 0.2057 | 0.03 |
| 0.35 | 294 | -0.5248 | 0.1852 | 0.0318 |
| 0.35 | 306 | 0.2226 | 0.2367 | 0.0303 |
| 0.45 | 66 | 0.4288 | 0.2142 | 0.0312 |
| 0.45 | 78 | -0.0651 | 0.1708 | 0.03 |
| 0.45 | 282 | -0.0335 | 0.232 | 0.03 |
| 0.45 | 294 | 0.005 | 0.1983 | 0.03 |
| 0.55 | 66 | 0.0879 | 0.2473 | 0.0301 |
| 0.55 | 78 | -0.3352 | 0.1954 | 0.0307 |
| 0.55 | 90 | -0.2895 | 0.2254 | 0.0306 |
| 0.55 | 102 | 0.0465 | 0.2634 | 0.03 |
| 0.55 | 114 | -0.1257 | 0.261 | 0.0301 |
| 0.55 | 282 | -0.1019 | 0.2292 | 0.0301 |
| 0.55 | 294 | 0.1192 | 0.2118 | 0.0301 |
| 0.65 | 66 | -0.0731 | 0.2266 | 0.03 |
| 0.65 | 78 | 0.3429 | 0.2157 | 0.0308 |
| 0.65 | 90 | -0.26 | 0.2259 | 0.0304 |
| 0.65 | 102 | -0.0999 | 0.1792 | 0.0301 |
| 0.65 | 114 | -0.1374 | 0.1815 | 0.0301 |
| 0.65 | 126 | 0.0731 | 0.201 | 0.03 |
| 0.65 | 234 | -0.073 | 0.2248 | 0.03 |
| 0.65 | 246 | -0.0862 | 0.1956 | 0.03 |
| 0.65 | 258 | 0.1451 | 0.1725 | 0.0301 |
| 0.65 | 270 | 0.1378 | 0.2627 | 0.0301 |
| 0.75 | 90 | -0.028 | 0.2379 | 0.03 |
| 0.75 | 102 | -0.2364 | 0.1657 | 0.0304 |
| 0.75 | 114 | 0.2105 | 0.1611 | 0.0303 |
| 0.75 | 126 | -0.1792 | 0.1711 | 0.0302 |
| 0.75 | 138 | -0.0967 | 0.2359 | 0.0301 |
| 0.75 | 210 | 0.0694 | 0.2263 | 0.03 |
| 0.75 | 222 | -0.3557 | 0.1689 | 0.0308 |
| 0.75 | 234 | 0.0476 | 0.1714 | 0.03 |
| 0.75 | 246 | 0.0282 | 0.1663 | 0.03 |
| 0.75 | 258 | 0.0961 | 0.173 | 0.0301 |
| 0.75 | 270 | -0.1392 | 0.1793 | 0.0301 |
| 0.85 | 90 | 0.0968 | 0.2295 | 0.0301 |
| 0.85 | 102 | 0.2423 | 0.171 | 0.0304 |
| 0.85 | 114 | 0.0857 | 0.1773 | 0.03 |
| 0.85 | 126 | -0.0153 | 0.1647 | 0.03 |
| 0.85 | 138 | -0.0584 | 0.1937 | 0.03 |
| 0.85 | 150 | -0.6051 | 0.195 | 0.0323 |
| 0.85 | 222 | -0.3382 | 0.1759 | 0.0308 |
| 0.85 | 234 | -0.1354 | 0.1592 | 0.0301 |
| 0.85 | 246 | -0.1482 | 0.1532 | 0.0301 |
| 0.85 | 258 | -0.0721 | 0.1533 | 0.03 |
| 0.85 | 270 | -0.0503 | 0.1651 | 0.03 |
| 0.85 | 282 | 0.0653 | 0.1734 | 0.03 |
| 0.95 | 90 | 0.1729 | 0.2481 | 0.0302 |
| 0.95 | 126 | 0.3512 | 0.2254 | 0.0308 |
| 0.95 | 222 | 0.3285 | 0.2185 | 0.0307 |
| 0.95 | 234 | 0.3892 | 0.207 | 0.031 |
| 0.95 | 246 | -0.5252 | 0.1841 | 0.0318 |
| 0.95 | 258 | -0.1129 | 0.1743 | 0.0301 |
| 0.95 | 270 | -0.1052 | 0.1864 | 0.0301 |
| 0.15 | 306 | 0.0906 | 0.2396 | 0.0301 |
| 0.25 | 54 | 0.1617 | 0.2721 | 0.0302 |
| 0.25 | 66 | -0.1379 | 0.2271 | 0.0301 |
| 0.25 | 294 | 0.0225 | 0.2554 | 0.03 |
| 0.35 | 66 | 0.1457 | 0.2022 | 0.0301 |
| 0.35 | 78 | -0.006 | 0.2081 | 0.03 |
| 0.35 | 282 | 0.307 | 0.2305 | 0.0306 |
| 0.35 | 294 | 0.2226 | 0.1843 | 0.0303 |
| 0.35 | 306 | -0.2526 | 0.223 | 0.0304 |
| 0.45 | 66 | -0.0885 | 0.2298 | 0.0301 |
| 0.45 | 78 | 0.1188 | 0.1777 | 0.0301 |
| 0.45 | 270 | 0.1057 | 0.2496 | 0.0301 |
| 0.45 | 282 | -0.3183 | 0.1981 | 0.0307 |
| 0.45 | 294 | 0.0185 | 0.1915 | 0.03 |
| 0.55 | 66 | 0.4345 | 0.2034 | 0.0312 |
| 0.55 | 78 | -0.0276 | 0.1959 | 0.03 |
| 0.55 | 90 | 0.3111 | 0.2361 | 0.0306 |
| 0.55 | 270 | 0.2802 | 0.2202 | 0.0305 |
| 0.55 | 282 | 0.1328 | 0.1979 | 0.0301 |
| 0.55 | 294 | -0.019 | 0.2322 | 0.03 |
| 0.65 | 102 | 0.3029 | 0.183 | 0.0306 |
| 0.65 | 114 | -0.0336 | 0.2114 | 0.03 |
| 0.65 | 126 | -0.0298 | 0.25 | 0.03 |
| 0.65 | 246 | 0.0545 | 0.2311 | 0.03 |
| 0.65 | 258 | -0.0833 | 0.1995 | 0.03 |
| 0.65 | 270 | 0.2907 | 0.2509 | 0.0306 |
| 0.75 | 90 | 0.0276 | 0.2238 | 0.03 |
| 0.75 | 102 | 0.1067 | 0.1764 | 0.0301 |
| 0.75 | 114 | 0.0772 | 0.1641 | 0.03 |
| 0.75 | 126 | -0.09 | 0.1859 | 0.0301 |
| 0.75 | 138 | -0.1169 | 0.2259 | 0.0301 |
| 0.75 | 222 | -0.4498 | 0.1605 | 0.0313 |
| 0.75 | 234 | -0.0271 | 0.177 | 0.03 |
| 0.75 | 246 | 0.1745 | 0.1629 | 0.0302 |
| 0.75 | 258 | 0.1927 | 0.1736 | 0.0302 |
| 0.75 | 270 | -0.1482 | 0.2231 | 0.0301 |
| 0.75 | 282 | -0.0877 | 0.2398 | 0.0301 |
| 0.85 | 78 | 0.13 | 0.2461 | 0.0301 |
| 0.85 | 90 | -0.5623 | 0.2272 | 0.032 |
| 0.85 | 102 | 0.0474 | 0.1891 | 0.03 |
| 0.85 | 114 | 0.1737 | 0.1951 | 0.0302 |
| 0.85 | 126 | -0.0826 | 0.1671 | 0.03 |
| 0.85 | 138 | 0.0851 | 0.1844 | 0.03 |
| 0.85 | 150 | -0.1854 | 0.2144 | 0.0302 |
| 0.85 | 210 | 0.0486 | 0.2538 | 0.03 |
| 0.85 | 222 | 0.0539 | 0.1982 | 0.03 |
| 0.85 | 234 | 0.5046 | 0.1575 | 0.0317 |
| 0.85 | 246 | 0.4378 | 0.1783 | 0.0313 |
| 0.85 | 258 | -0.2318 | 0.1715 | 0.0304 |
| 0.85 | 270 | -0.2504 | 0.1774 | 0.0304 |
| 0.85 | 282 | -0.0443 | 0.1824 | 0.03 |
| 0.95 | 90 | -0.0427 | 0.2515 | 0.03 |
| 0.95 | 126 | 0.1215 | 0.2493 | 0.0301 |
| 0.95 | 210 | -0.6296 | 0.2143 | 0.0325 |
| 0.95 | 222 | -0.2889 | 0.2233 | 0.0306 |
| 0.95 | 234 | 0.3511 | 0.2324 | 0.0308 |
| 0.95 | 246 | 0.1427 | 0.2189 | 0.0301 |
| 0.95 | 258 | 0.0603 | 0.2021 | 0.03 |
| 0.95 | 270 | -0.1945 | 0.208 | 0.0303 |