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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 : | 0.0291 GeV2 | |
|---|---|---|
| W : | 1355 GeV | |
| ε : | 0.8766 | |
| Ebeam : | 1.3383 GeV | |
| εL: | 0.0928 |
|
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 | 42 | 0.2061 | 0.2542 | 0.0303 |
| 0.35 | 30 | -0.1858 | 0.2437 | 0.0302 |
| 0.35 | 42 | -0.2929 | 0.2035 | 0.0306 |
| 0.35 | 54 | -0.3914 | 0.265 | 0.031 |
| 0.45 | 18 | 0.195 | 0.2539 | 0.0303 |
| 0.45 | 30 | -0.0005 | 0.199 | 0.03 |
| 0.45 | 42 | 0.4067 | 0.2165 | 0.0311 |
| 0.55 | 30 | 0.3869 | 0.2364 | 0.031 |
| 0.55 | 42 | -0.0763 | 0.2327 | 0.03 |
| 0.55 | 126 | -0.0568 | 0.2785 | 0.03 |
| 0.55 | 138 | 0.053 | 0.2852 | 0.03 |
| 0.55 | 234 | -0.0074 | 0.2061 | 0.03 |
| 0.55 | 246 | 0.0548 | 0.2037 | 0.03 |
| 0.55 | 258 | 0.0536 | 0.1676 | 0.03 |
| 0.55 | 270 | 0.1959 | 0.2465 | 0.0303 |
| 0.65 | 126 | 0.1729 | 0.1937 | 0.0302 |
| 0.65 | 138 | 0.2388 | 0.1918 | 0.0304 |
| 0.65 | 150 | 0.1207 | 0.1993 | 0.0301 |
| 0.65 | 162 | -0.0421 | 0.2574 | 0.03 |
| 0.65 | 210 | -0.1919 | 0.2468 | 0.0302 |
| 0.65 | 222 | 0.1178 | 0.1709 | 0.0301 |
| 0.65 | 234 | -0.0761 | 0.1562 | 0.03 |
| 0.65 | 246 | 0.0774 | 0.1674 | 0.03 |
| 0.65 | 258 | -0.1337 | 0.1742 | 0.0301 |
| 0.65 | 270 | -0.1907 | 0.2528 | 0.0302 |
| 0.75 | 114 | -0.202 | 0.2164 | 0.0303 |
| 0.75 | 126 | -0.0071 | 0.2087 | 0.03 |
| 0.75 | 138 | 0.1131 | 0.1699 | 0.0301 |
| 0.75 | 150 | -0.1237 | 0.1898 | 0.0301 |
| 0.75 | 162 | 0.153 | 0.2103 | 0.0302 |
| 0.75 | 198 | 0.2907 | 0.2682 | 0.0306 |
| 0.75 | 210 | -0.2396 | 0.2209 | 0.0304 |
| 0.75 | 222 | -0.085 | 0.1714 | 0.03 |
| 0.75 | 234 | 0.0237 | 0.1558 | 0.03 |
| 0.75 | 246 | 0.0468 | 0.1563 | 0.03 |
| 0.75 | 258 | -0.1549 | 0.1432 | 0.0302 |
| 0.75 | 270 | -0.3057 | 0.263 | 0.0306 |
| 0.85 | 102 | -0.5439 | 0.2437 | 0.0319 |
| 0.85 | 114 | 0.2387 | 0.2749 | 0.0304 |
| 0.85 | 126 | -0.1371 | 0.2491 | 0.0301 |
| 0.85 | 138 | 0.2143 | 0.2083 | 0.0303 |
| 0.85 | 150 | -0.3495 | 0.2041 | 0.0308 |
| 0.85 | 162 | 0.099 | 0.2331 | 0.0301 |
| 0.85 | 222 | -0.0654 | 0.1898 | 0.03 |
| 0.85 | 234 | 0.0959 | 0.148 | 0.0301 |
| 0.85 | 246 | -0.0599 | 0.1535 | 0.03 |
| 0.85 | 258 | 0.0591 | 0.1829 | 0.03 |
| 0.85 | 270 | 0.1817 | 0.1831 | 0.0302 |
| 0.95 | 114 | 0.0302 | 0.24 | 0.03 |
| 0.95 | 126 | -0.0673 | 0.2215 | 0.03 |
| 0.95 | 222 | -0.2025 | 0.2395 | 0.0303 |
| 0.95 | 234 | -0.2245 | 0.194 | 0.0303 |
| 0.95 | 246 | -0.4884 | 0.229 | 0.0316 |
| 0.95 | 258 | 0.1794 | 0.2386 | 0.0302 |
| 0.15 | 42 | 0.4458 | 0.2749 | 0.0313 |
| 0.25 | 30 | 0.4823 | 0.3088 | 0.0315 |
| 0.25 | 42 | -0.1518 | 0.3141 | 0.0302 |
| 0.25 | 54 | -0.0991 | 0.3708 | 0.0301 |
| 0.35 | 18 | -0.0174 | 0.3963 | 0.03 |
| 0.35 | 30 | -0.0584 | 0.3885 | 0.03 |
| 0.35 | 42 | 0.6443 | 0.2675 | 0.0327 |
| 0.35 | 54 | 0.1237 | 0.3688 | 0.0301 |
| 0.45 | 18 | 0.5434 | 0.2737 | 0.0319 |
| 0.45 | 30 | 0.1772 | 0.2727 | 0.0302 |
| 0.45 | 42 | 0.7771 | 0.1809 | 0.0338 |
| 0.55 | 30 | 0.7446 | 0.1803 | 0.0335 |
| 0.55 | 42 | 0.6479 | 0.2501 | 0.0327 |
| 0.55 | 138 | -0.5041 | 0.2861 | 0.0316 |
| 0.55 | 222 | 0.581 | 0.2429 | 0.0322 |
| 0.55 | 234 | 0.1884 | 0.269 | 0.0302 |
| 0.55 | 246 | -0.3047 | 0.2582 | 0.0306 |
| 0.55 | 258 | -0.7988 | 0.1496 | 0.034 |
| 0.65 | 126 | -0.2125 | 0.3025 | 0.0303 |
| 0.65 | 138 | 0.2014 | 0.3 | 0.0303 |
| 0.65 | 150 | 0.3666 | 0.2638 | 0.0309 |
| 0.65 | 162 | -0.682 | 0.2343 | 0.033 |
| 0.65 | 210 | -0.762 | 0.182 | 0.0336 |
| 0.65 | 222 | -0.5209 | 0.2625 | 0.0318 |
| 0.65 | 234 | 0.13 | 0.2466 | 0.0301 |
| 0.65 | 246 | -0.207 | 0.1911 | 0.0303 |
| 0.65 | 258 | -0.2466 | 0.2376 | 0.0304 |
| 0.65 | 270 | -0.5738 | 0.2144 | 0.0321 |
| 0.75 | 114 | 0.0978 | 0.3362 | 0.0301 |
| 0.75 | 126 | 0.2855 | 0.2433 | 0.0305 |
| 0.75 | 138 | -0.2156 | 0.2611 | 0.0303 |
| 0.75 | 150 | -0.2211 | 0.2342 | 0.0303 |
| 0.75 | 162 | 0.4563 | 0.288 | 0.0314 |
| 0.75 | 210 | 0.1084 | 0.3613 | 0.0301 |
| 0.75 | 222 | -0.1294 | 0.2768 | 0.0301 |
| 0.75 | 234 | 0.0414 | 0.2033 | 0.03 |
| 0.75 | 246 | -0.1942 | 0.2131 | 0.0303 |
| 0.75 | 258 | 0.2675 | 0.2197 | 0.0305 |
| 0.75 | 270 | -0.0474 | 0.35 | 0.03 |
| 0.85 | 114 | 0.013 | 0.3596 | 0.03 |
| 0.85 | 126 | 0.049 | 0.3223 | 0.03 |
| 0.85 | 138 | 0.6382 | 0.2522 | 0.0326 |
| 0.85 | 150 | 0.6519 | 0.194 | 0.0327 |
| 0.85 | 162 | 0.1804 | 0.4004 | 0.0302 |
| 0.85 | 210 | -0.5251 | 0.2211 | 0.0318 |
| 0.85 | 222 | -0.1168 | 0.287 | 0.0301 |
| 0.85 | 234 | 0.1253 | 0.2387 | 0.0301 |
| 0.85 | 246 | -0.0883 | 0.2277 | 0.0301 |
| 0.85 | 258 | -0.0497 | 0.2182 | 0.03 |
| 0.85 | 270 | -0.0683 | 0.3249 | 0.03 |
| 0.95 | 126 | -0.0426 | 0.3581 | 0.03 |
| 0.95 | 234 | 0.2449 | 0.2915 | 0.0304 |
| 0.95 | 246 | 0.2369 | 0.3235 | 0.0304 |
| 0.95 | 258 | 0.3463 | 0.3101 | 0.0308 |