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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 : | 0.1435 GeV2 | |
|---|---|---|
| W : | 1415 GeV | |
| ε : | 0.8961 | |
| Ebeam : | 1.9889 GeV | |
| εL: | 0.2828 |
|
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 | 0.0224 | 0.2304 | 0.03 |
| 0.25 | 78 | 0.2808 | 0.2649 | 0.0305 |
| 0.25 | 282 | 0.018 | 0.2505 | 0.03 |
| 0.25 | 294 | 0.3812 | 0.25 | 0.031 |
| 0.35 | 66 | -0.0852 | 0.1961 | 0.03 |
| 0.35 | 78 | -0.299 | 0.233 | 0.0306 |
| 0.35 | 282 | 0.0071 | 0.2559 | 0.03 |
| 0.35 | 294 | -0.0422 | 0.2706 | 0.03 |
| 0.35 | 306 | 0.1355 | 0.265 | 0.0301 |
| 0.45 | 66 | -0.1447 | 0.2554 | 0.0301 |
| 0.45 | 78 | 0.0522 | 0.2128 | 0.03 |
| 0.45 | 282 | -0.1046 | 0.2643 | 0.0301 |
| 0.45 | 294 | -0.2124 | 0.2418 | 0.0303 |
| 0.55 | 66 | 0.3012 | 0.2097 | 0.0306 |
| 0.55 | 102 | -0.2104 | 0.2755 | 0.0303 |
| 0.55 | 114 | 0.5577 | 0.2172 | 0.032 |
| 0.55 | 282 | -0.1295 | 0.2414 | 0.0301 |
| 0.55 | 306 | -0.3241 | 0.2506 | 0.0307 |
| 0.65 | 102 | 0.1969 | 0.2227 | 0.0303 |
| 0.65 | 114 | -0.0271 | 0.2101 | 0.03 |
| 0.65 | 126 | 0.2499 | 0.2501 | 0.0304 |
| 0.65 | 246 | 0.4392 | 0.1978 | 0.0313 |
| 0.65 | 258 | 0.0534 | 0.2432 | 0.03 |
| 0.65 | 270 | -0.1517 | 0.2702 | 0.0302 |
| 0.75 | 90 | 0.2785 | 0.2047 | 0.0305 |
| 0.75 | 102 | 0.3213 | 0.1785 | 0.0307 |
| 0.75 | 114 | 0.2873 | 0.1684 | 0.0305 |
| 0.75 | 126 | -0.0615 | 0.1967 | 0.03 |
| 0.75 | 138 | 0.0711 | 0.2052 | 0.03 |
| 0.75 | 210 | -0.0276 | 0.2842 | 0.03 |
| 0.75 | 222 | 0.2357 | 0.2239 | 0.0304 |
| 0.75 | 234 | 0.4618 | 0.1762 | 0.0314 |
| 0.75 | 246 | -0.148 | 0.1855 | 0.0301 |
| 0.75 | 258 | 0.2701 | 0.1809 | 0.0305 |
| 0.75 | 270 | 0.13 | 0.1934 | 0.0301 |
| 0.85 | 78 | -0.0344 | 0.2241 | 0.03 |
| 0.85 | 102 | 0.303 | 0.2089 | 0.0306 |
| 0.85 | 114 | 0.0731 | 0.1878 | 0.03 |
| 0.85 | 126 | -0.0133 | 0.2455 | 0.03 |
| 0.85 | 138 | 0.1085 | 0.1935 | 0.0301 |
| 0.85 | 150 | -0.0765 | 0.2537 | 0.03 |
| 0.85 | 210 | -0.0122 | 0.2494 | 0.03 |
| 0.85 | 222 | -0.213 | 0.2055 | 0.0303 |
| 0.85 | 234 | 0.0094 | 0.1891 | 0.03 |
| 0.85 | 246 | 0.1818 | 0.1731 | 0.0302 |
| 0.85 | 258 | 0.0126 | 0.1842 | 0.03 |
| 0.85 | 270 | -0.1243 | 0.1558 | 0.0301 |
| 0.85 | 282 | 0.0103 | 0.2338 | 0.03 |
| 0.95 | 90 | 0.4497 | 0.2112 | 0.0313 |
| 0.95 | 222 | -0.044 | 0.2868 | 0.03 |
| 0.95 | 234 | -0.2916 | 0.193 | 0.0306 |
| 0.95 | 246 | -0.5518 | 0.1802 | 0.032 |
| 0.95 | 258 | 0.0304 | 0.1992 | 0.03 |
| 0.95 | 270 | -0.1037 | 0.1787 | 0.0301 |
| 0.95 | 282 | -0.388 | 0.2054 | 0.031 |