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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 : | 0.0245 GeV2 | |
|---|---|---|
| W : | 1265 GeV | |
| ε : | 0.9324 | |
| Ebeam : | 1.3383 GeV | |
| εL: | 0.1449 |
|
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 | 42 | 0.5171 | 0.1958 | 0.0317 |
| 0.25 | 30 | 0.3436 | 0.2796 | 0.0308 |
| 0.25 | 42 | 0.3494 | 0.2327 | 0.0308 |
| 0.25 | 54 | 0.265 | 0.334 | 0.0305 |
| 0.35 | 30 | 0.1065 | 0.3929 | 0.0301 |
| 0.35 | 42 | 0.1076 | 0.3024 | 0.0301 |
| 0.45 | 42 | 0.0545 | 0.399 | 0.03 |
| 0.45 | 270 | 0.0365 | 0.3984 | 0.03 |
| 0.45 | 282 | -0.3784 | 0.2955 | 0.0309 |
| 0.55 | 234 | 0.65 | 0.2111 | 0.0327 |
| 0.55 | 246 | -0.3423 | 0.2331 | 0.0308 |
| 0.55 | 258 | -0.2322 | 0.233 | 0.0304 |
| 0.55 | 270 | -0.435 | 0.2589 | 0.0312 |
| 0.55 | 282 | 0.4947 | 0.2465 | 0.0316 |
| 0.65 | 138 | 0.6224 | 0.3276 | 0.0325 |
| 0.65 | 222 | 0.3352 | 0.3868 | 0.0307 |
| 0.65 | 234 | 0.0835 | 0.25 | 0.03 |
| 0.65 | 246 | 0.1689 | 0.2002 | 0.0302 |
| 0.65 | 258 | 0.2509 | 0.1972 | 0.0304 |
| 0.65 | 270 | -0.4644 | 0.1985 | 0.0314 |
| 0.65 | 282 | -0.0912 | 0.3367 | 0.0301 |
| 0.75 | 126 | 0.2884 | 0.2837 | 0.0305 |
| 0.75 | 138 | 0.0054 | 0.2362 | 0.03 |
| 0.75 | 150 | -0.1029 | 0.242 | 0.0301 |
| 0.75 | 162 | -0.0231 | 0.2609 | 0.03 |
| 0.75 | 174 | 0.0295 | 0.3116 | 0.03 |
| 0.75 | 186 | -0.2782 | 0.2894 | 0.0305 |
| 0.75 | 198 | -0.3957 | 0.2577 | 0.031 |
| 0.75 | 210 | 0.3811 | 0.2663 | 0.031 |
| 0.75 | 222 | -0.1922 | 0.2938 | 0.0302 |
| 0.75 | 234 | -0.0481 | 0.217 | 0.03 |
| 0.75 | 246 | -0.3063 | 0.2077 | 0.0306 |
| 0.75 | 258 | 0.0025 | 0.1948 | 0.03 |
| 0.75 | 270 | -0.2255 | 0.231 | 0.0303 |
| 0.75 | 282 | -0.0602 | 0.2931 | 0.03 |
| 0.85 | 126 | -0.221 | 0.3017 | 0.0303 |
| 0.85 | 138 | -0.1695 | 0.2771 | 0.0302 |
| 0.85 | 150 | 0.3376 | 0.2724 | 0.0308 |
| 0.85 | 162 | -0.121 | 0.3 | 0.0301 |
| 0.85 | 174 | -0.1763 | 0.2977 | 0.0302 |
| 0.85 | 186 | 0.091 | 0.3281 | 0.0301 |
| 0.85 | 198 | -0.334 | 0.2827 | 0.0307 |
| 0.85 | 210 | -0.438 | 0.3437 | 0.0313 |
| 0.85 | 222 | 0.2149 | 0.2599 | 0.0303 |
| 0.85 | 234 | 0.2614 | 0.2169 | 0.0305 |
| 0.85 | 246 | 0.1358 | 0.1939 | 0.0301 |
| 0.85 | 258 | 0.0146 | 0.196 | 0.03 |
| 0.85 | 270 | 0.2722 | 0.2009 | 0.0305 |
| 0.15 | 54 | -0.0906 | 0.2387 | 0.0301 |
| 0.25 | 30 | -0.3037 | 0.2367 | 0.0306 |
| 0.25 | 42 | 0.2797 | 0.2053 | 0.0305 |
| 0.25 | 54 | -0.0784 | 0.2054 | 0.03 |
| 0.35 | 30 | -0.0665 | 0.2605 | 0.03 |
| 0.35 | 42 | -0.2561 | 0.1886 | 0.0304 |
| 0.35 | 54 | -0.1381 | 0.2344 | 0.0301 |
| 0.45 | 30 | -0.3498 | 0.2448 | 0.0308 |
| 0.45 | 42 | -0.1036 | 0.2647 | 0.0301 |
| 0.45 | 258 | 0.0407 | 0.2744 | 0.03 |
| 0.45 | 270 | 0.2703 | 0.2517 | 0.0305 |
| 0.55 | 246 | -0.2176 | 0.1997 | 0.0303 |
| 0.55 | 258 | 0.0441 | 0.1695 | 0.03 |
| 0.55 | 270 | -0.1834 | 0.1564 | 0.0302 |
| 0.65 | 126 | -0.3773 | 0.2667 | 0.0309 |
| 0.65 | 138 | 0.1552 | 0.2519 | 0.0302 |
| 0.65 | 150 | -0.0714 | 0.2612 | 0.03 |
| 0.65 | 222 | -0.2303 | 0.2265 | 0.0304 |
| 0.65 | 234 | -0.0019 | 0.1671 | 0.03 |
| 0.65 | 246 | -0.0638 | 0.1503 | 0.03 |
| 0.65 | 258 | -0.0845 | 0.1211 | 0.03 |
| 0.65 | 270 | -0.4054 | 0.1364 | 0.0311 |
| 0.75 | 126 | 0.2498 | 0.173 | 0.0304 |
| 0.75 | 138 | 0.2748 | 0.1487 | 0.0305 |
| 0.75 | 150 | -0.1256 | 0.1889 | 0.0301 |
| 0.75 | 162 | 0.3573 | 0.1936 | 0.0308 |
| 0.75 | 174 | 0.2771 | 0.2131 | 0.0305 |
| 0.75 | 186 | 0.1102 | 0.2147 | 0.0301 |
| 0.75 | 198 | -0.2978 | 0.2801 | 0.0306 |
| 0.75 | 210 | 0.0291 | 0.2643 | 0.03 |
| 0.75 | 222 | -0.0773 | 0.1726 | 0.03 |
| 0.75 | 234 | -0.1103 | 0.1639 | 0.0301 |
| 0.75 | 246 | -0.1414 | 0.1385 | 0.0301 |
| 0.75 | 258 | -0.0835 | 0.1287 | 0.03 |
| 0.75 | 270 | -0.2159 | 0.1433 | 0.0303 |
| 0.75 | 282 | -0.2449 | 0.2076 | 0.0304 |
| 0.85 | 126 | 0.0411 | 0.2053 | 0.03 |
| 0.85 | 138 | -0.1263 | 0.1761 | 0.0301 |
| 0.85 | 150 | -0.0591 | 0.1804 | 0.03 |
| 0.85 | 162 | 0.2397 | 0.1875 | 0.0304 |
| 0.85 | 174 | 0.1757 | 0.1826 | 0.0302 |
| 0.85 | 186 | -0.212 | 0.2138 | 0.0303 |
| 0.85 | 198 | 0.197 | 0.2371 | 0.0303 |
| 0.85 | 210 | -0.0142 | 0.2517 | 0.03 |
| 0.85 | 222 | -0.287 | 0.172 | 0.0305 |
| 0.85 | 234 | 0.0026 | 0.1447 | 0.03 |
| 0.85 | 246 | 0.1226 | 0.137 | 0.0301 |
| 0.85 | 258 | -0.1705 | 0.1349 | 0.0302 |
| 0.85 | 270 | -0.1686 | 0.1466 | 0.0302 |