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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 : | 1505 GeV | |
| ε : | 0.8721 | |
| Ebeam : | 1.9889 GeV | |
| εL: | 0.1202 |
|
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 | 54 | -0.3215 | 0.2623 | 0.0307 |
| 0.25 | 66 | 0.4664 | 0.2084 | 0.0314 |
| 0.25 | 78 | -0.2885 | 0.2081 | 0.0305 |
| 0.25 | 270 | 0.3899 | 0.2429 | 0.031 |
| 0.25 | 282 | 0.2927 | 0.2433 | 0.0306 |
| 0.25 | 294 | -0.0778 | 0.2199 | 0.03 |
| 0.25 | 306 | -0.5835 | 0.2076 | 0.0322 |
| 0.35 | 66 | 0.2028 | 0.1847 | 0.0303 |
| 0.35 | 78 | 0.0602 | 0.2053 | 0.03 |
| 0.35 | 90 | -0.199 | 0.2315 | 0.0303 |
| 0.35 | 270 | -0.0861 | 0.2112 | 0.03 |
| 0.35 | 282 | -0.0943 | 0.1642 | 0.0301 |
| 0.35 | 294 | -0.0606 | 0.2424 | 0.03 |
| 0.35 | 306 | 0.1991 | 0.2421 | 0.0303 |
| 0.45 | 66 | 0.1223 | 0.2118 | 0.0301 |
| 0.45 | 78 | -0.0098 | 0.171 | 0.03 |
| 0.45 | 90 | -0.0096 | 0.2063 | 0.03 |
| 0.45 | 258 | -0.2579 | 0.2536 | 0.0304 |
| 0.45 | 270 | 0.2934 | 0.1777 | 0.0306 |
| 0.45 | 282 | -0.1865 | 0.1673 | 0.0302 |
| 0.45 | 294 | 0.0377 | 0.2015 | 0.03 |
| 0.55 | 66 | -0.0277 | 0.2474 | 0.03 |
| 0.55 | 78 | 0.0406 | 0.1742 | 0.03 |
| 0.55 | 102 | 0.5457 | 0.2045 | 0.0319 |
| 0.55 | 114 | -0.241 | 0.2074 | 0.0304 |
| 0.55 | 126 | 0.0466 | 0.2192 | 0.03 |
| 0.55 | 138 | -0.5284 | 0.1918 | 0.0318 |
| 0.55 | 222 | 0.0476 | 0.2702 | 0.03 |
| 0.55 | 234 | 0.0784 | 0.2014 | 0.03 |
| 0.55 | 258 | -0.5368 | 0.1976 | 0.0319 |
| 0.55 | 270 | 0.327 | 0.1788 | 0.0307 |
| 0.55 | 282 | -0.369 | 0.1808 | 0.0309 |
| 0.55 | 294 | 0.0323 | 0.2702 | 0.03 |
| 0.65 | 66 | 0.1428 | 0.1956 | 0.0301 |
| 0.65 | 78 | -0.1145 | 0.234 | 0.0301 |
| 0.65 | 90 | 0.2096 | 0.2849 | 0.0303 |
| 0.65 | 102 | -0.0884 | 0.2009 | 0.0301 |
| 0.65 | 114 | 0.2549 | 0.1811 | 0.0304 |
| 0.65 | 126 | 0.031 | 0.1777 | 0.03 |
| 0.65 | 138 | 0.2433 | 0.236 | 0.0304 |
| 0.65 | 150 | 0.1242 | 0.2583 | 0.0301 |
| 0.65 | 198 | 0.1065 | 0.2321 | 0.0301 |
| 0.65 | 210 | -0.0836 | 0.2063 | 0.03 |
| 0.65 | 222 | 0.4676 | 0.157 | 0.0314 |
| 0.65 | 234 | -0.1964 | 0.166 | 0.0303 |
| 0.65 | 246 | 0.2171 | 0.1986 | 0.0303 |
| 0.65 | 258 | -0.2715 | 0.2686 | 0.0305 |
| 0.65 | 270 | -0.0281 | 0.2342 | 0.03 |
| 0.65 | 282 | -0.1829 | 0.2279 | 0.0302 |
| 0.65 | 294 | 0.2668 | 0.1893 | 0.0305 |
| 0.65 | 306 | -0.2217 | 0.2559 | 0.0303 |
| 0.75 | 66 | -0.0639 | 0.2696 | 0.03 |
| 0.75 | 102 | 0.1468 | 0.2173 | 0.0301 |
| 0.75 | 114 | 0.049 | 0.1618 | 0.03 |
| 0.75 | 126 | 0.0445 | 0.1609 | 0.03 |
| 0.75 | 138 | -0.1473 | 0.1812 | 0.0301 |
| 0.75 | 150 | 0.0071 | 0.2496 | 0.03 |
| 0.75 | 198 | -0.0866 | 0.2226 | 0.0301 |
| 0.75 | 210 | -0.1209 | 0.1572 | 0.0301 |
| 0.75 | 222 | 0.1044 | 0.1551 | 0.0301 |
| 0.75 | 234 | 0.2543 | 0.1411 | 0.0304 |
| 0.75 | 246 | 0.2733 | 0.177 | 0.0305 |
| 0.75 | 258 | -0.2102 | 0.2056 | 0.0303 |
| 0.75 | 282 | 0.1149 | 0.2353 | 0.0301 |
| 0.75 | 294 | -0.1874 | 0.197 | 0.0302 |
| 0.85 | 90 | 0.1978 | 0.1824 | 0.0303 |
| 0.85 | 102 | -0.1706 | 0.1932 | 0.0302 |
| 0.85 | 114 | -0.0486 | 0.2501 | 0.03 |
| 0.85 | 126 | -0.2608 | 0.212 | 0.0305 |
| 0.85 | 138 | -0.3469 | 0.2186 | 0.0308 |
| 0.85 | 198 | 0.4419 | 0.2473 | 0.0313 |
| 0.85 | 210 | -0.0715 | 0.2005 | 0.03 |
| 0.85 | 222 | 0.0499 | 0.1636 | 0.03 |
| 0.85 | 234 | 0.1129 | 0.1954 | 0.0301 |
| 0.85 | 246 | 0.0019 | 0.1798 | 0.03 |
| 0.85 | 258 | -0.0953 | 0.206 | 0.0301 |
| 0.85 | 270 | -0.3654 | 0.2309 | 0.0309 |
| 0.95 | 102 | -0.0865 | 0.2708 | 0.03 |
| 0.95 | 114 | 0.3483 | 0.2241 | 0.0308 |
| 0.95 | 210 | -0.336 | 0.2468 | 0.0307 |
| 0.95 | 222 | 0.2877 | 0.2674 | 0.0305 |
| 0.95 | 234 | 0.1864 | 0.2127 | 0.0302 |
| 0.95 | 246 | -0.187 | 0.1957 | 0.0302 |
| 0.95 | 258 | -0.4764 | 0.187 | 0.0315 |