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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 : | 0.0415 GeV2 | |
|---|---|---|
| W : | 1445 GeV | |
| ε : | 0.9154 | |
| Ebeam : | 1.9889 GeV | |
| εL: | 0.0858 |
|
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 | 30 | -0.5279 | 0.2365 | 0.0318 |
| 0.15 | 42 | 0.0433 | 0.2702 | 0.03 |
| 0.25 | 30 | 0.0054 | 0.2524 | 0.03 |
| 0.25 | 42 | -0.195 | 0.2671 | 0.0303 |
| 0.25 | 54 | -0.0421 | 0.2433 | 0.03 |
| 0.25 | 66 | 0.0936 | 0.2089 | 0.0301 |
| 0.25 | 78 | -0.0898 | 0.2115 | 0.0301 |
| 0.25 | 282 | 0.1589 | 0.2174 | 0.0302 |
| 0.25 | 294 | 0.0455 | 0.1761 | 0.03 |
| 0.25 | 306 | 0.1139 | 0.2374 | 0.0301 |
| 0.25 | 318 | -0.199 | 0.2356 | 0.0303 |
| 0.25 | 330 | 0.1109 | 0.2547 | 0.0301 |
| 0.35 | 30 | 0.2661 | 0.2075 | 0.0305 |
| 0.35 | 54 | -0.4947 | 0.1891 | 0.0316 |
| 0.35 | 66 | 0.0797 | 0.1378 | 0.03 |
| 0.35 | 78 | -0.0909 | 0.141 | 0.0301 |
| 0.35 | 90 | 0.0617 | 0.183 | 0.03 |
| 0.35 | 270 | 0.1331 | 0.2006 | 0.0301 |
| 0.35 | 282 | 0.0899 | 0.1611 | 0.0301 |
| 0.35 | 294 | -0.0994 | 0.1418 | 0.0301 |
| 0.35 | 306 | 0.3011 | 0.2262 | 0.0306 |
| 0.35 | 330 | -0.1544 | 0.2424 | 0.0302 |
| 0.45 | 18 | -0.5448 | 0.2077 | 0.0319 |
| 0.45 | 30 | 0.213 | 0.2309 | 0.0303 |
| 0.45 | 42 | 0.0534 | 0.2498 | 0.03 |
| 0.45 | 66 | 0.3891 | 0.1597 | 0.031 |
| 0.45 | 78 | -0.1432 | 0.1276 | 0.0301 |
| 0.45 | 90 | -0.0498 | 0.1465 | 0.03 |
| 0.45 | 102 | -0.2503 | 0.1966 | 0.0304 |
| 0.45 | 114 | -0.3126 | 0.2516 | 0.0306 |
| 0.45 | 258 | 0.1829 | 0.2002 | 0.0302 |
| 0.45 | 270 | -0.0663 | 0.1365 | 0.03 |
| 0.45 | 282 | 0.0875 | 0.1212 | 0.0301 |
| 0.45 | 294 | 0.3924 | 0.1322 | 0.031 |
| 0.45 | 306 | -0.1543 | 0.2192 | 0.0302 |
| 0.45 | 318 | 0.1037 | 0.2681 | 0.0301 |
| 0.45 | 330 | -0.2945 | 0.2364 | 0.0306 |
| 0.55 | 66 | -0.1575 | 0.1852 | 0.0302 |
| 0.55 | 78 | -0.0829 | 0.1315 | 0.03 |
| 0.55 | 90 | 0.1028 | 0.1423 | 0.0301 |
| 0.55 | 102 | -0.1295 | 0.1668 | 0.0301 |
| 0.55 | 114 | 0.1097 | 0.1981 | 0.0301 |
| 0.55 | 126 | 0.108 | 0.164 | 0.0301 |
| 0.55 | 138 | -0.2174 | 0.1999 | 0.0303 |
| 0.55 | 150 | -0.2003 | 0.2273 | 0.0303 |
| 0.55 | 198 | -0.2575 | 0.2607 | 0.0304 |
| 0.55 | 210 | 0.0344 | 0.2476 | 0.03 |
| 0.55 | 222 | -0.0752 | 0.2167 | 0.03 |
| 0.55 | 234 | 0.0891 | 0.1945 | 0.0301 |
| 0.55 | 246 | -0.0036 | 0.2113 | 0.03 |
| 0.55 | 258 | 0.2561 | 0.1778 | 0.0304 |
| 0.55 | 270 | 0.1047 | 0.133 | 0.0301 |
| 0.55 | 282 | 0.0321 | 0.1345 | 0.03 |
| 0.55 | 294 | 0.135 | 0.1516 | 0.0301 |
| 0.65 | 66 | -0.0231 | 0.1795 | 0.03 |
| 0.65 | 78 | -0.1509 | 0.1905 | 0.0302 |
| 0.65 | 90 | 0.1244 | 0.1993 | 0.0301 |
| 0.65 | 102 | 0.1849 | 0.1684 | 0.0302 |
| 0.65 | 114 | -0.1632 | 0.1496 | 0.0302 |
| 0.65 | 126 | -0.0254 | 0.149 | 0.03 |
| 0.65 | 138 | 0.2462 | 0.1593 | 0.0304 |
| 0.65 | 150 | 0.0331 | 0.2155 | 0.03 |
| 0.65 | 162 | 0.0909 | 0.2547 | 0.0301 |
| 0.65 | 198 | 0.3901 | 0.2159 | 0.031 |
| 0.65 | 210 | 0.1998 | 0.1967 | 0.0303 |
| 0.65 | 222 | 0.193 | 0.1707 | 0.0302 |
| 0.65 | 234 | -0.1806 | 0.1289 | 0.0302 |
| 0.65 | 246 | 0.0435 | 0.1648 | 0.03 |
| 0.65 | 258 | 0.0299 | 0.1609 | 0.03 |
| 0.65 | 270 | -0.1721 | 0.1442 | 0.0302 |
| 0.65 | 282 | -0.1806 | 0.177 | 0.0302 |
| 0.65 | 294 | -0.3899 | 0.1903 | 0.031 |
| 0.65 | 306 | 0.0493 | 0.2409 | 0.03 |
| 0.75 | 66 | -0.1484 | 0.2237 | 0.0301 |
| 0.75 | 78 | -0.068 | 0.1834 | 0.03 |
| 0.75 | 102 | -0.1756 | 0.1867 | 0.0302 |
| 0.75 | 114 | -0.1358 | 0.1453 | 0.0301 |
| 0.75 | 126 | -0.09 | 0.1381 | 0.0301 |
| 0.75 | 138 | 0.1025 | 0.1473 | 0.0301 |
| 0.75 | 150 | 0.0511 | 0.1747 | 0.03 |
| 0.75 | 162 | 0.3211 | 0.2617 | 0.0307 |
| 0.75 | 186 | 0.2799 | 0.2507 | 0.0305 |
| 0.75 | 198 | 0.024 | 0.2271 | 0.03 |
| 0.75 | 210 | 0.1556 | 0.1602 | 0.0302 |
| 0.75 | 222 | -0.0501 | 0.1319 | 0.03 |
| 0.75 | 234 | -0.1654 | 0.1348 | 0.0302 |
| 0.75 | 246 | 0.0506 | 0.1277 | 0.03 |
| 0.75 | 258 | 0.1431 | 0.1864 | 0.0301 |
| 0.75 | 270 | -0.1158 | 0.2301 | 0.0301 |
| 0.75 | 282 | -0.1227 | 0.1826 | 0.0301 |
| 0.75 | 294 | 0.0568 | 0.2013 | 0.03 |
| 0.85 | 90 | -0.1933 | 0.2327 | 0.0302 |
| 0.85 | 102 | -0.1044 | 0.2066 | 0.0301 |
| 0.85 | 114 | 0.2579 | 0.1995 | 0.0304 |
| 0.85 | 126 | 0.1957 | 0.1907 | 0.0303 |
| 0.85 | 138 | -0.0944 | 0.2031 | 0.0301 |
| 0.85 | 150 | -0.1086 | 0.2824 | 0.0301 |
| 0.85 | 186 | -0.3029 | 0.2716 | 0.0306 |
| 0.85 | 198 | -0.2725 | 0.1994 | 0.0305 |
| 0.85 | 210 | -0.2205 | 0.1589 | 0.0303 |
| 0.85 | 222 | -0.0356 | 0.1592 | 0.03 |
| 0.85 | 234 | -0.0009 | 0.147 | 0.03 |
| 0.85 | 246 | -0.0641 | 0.1678 | 0.03 |
| 0.85 | 258 | 0.0351 | 0.1606 | 0.03 |
| 0.85 | 270 | -0.0714 | 0.209 | 0.03 |
| 0.95 | 210 | -0.37 | 0.2504 | 0.0309 |
| 0.95 | 222 | 0.2311 | 0.217 | 0.0304 |
| 0.95 | 234 | -0.1578 | 0.2077 | 0.0302 |
| 0.95 | 246 | -0.31 | 0.2271 | 0.0306 |