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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 : | 0.205 GeV2 | |
|---|---|---|
| W : | 1385 GeV | |
| ε : | 0.9558 | |
| Ebeam : | 2.999 GeV | |
| εL: | 0.4467 |
|
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 |
|---|---|---|---|---|
| 0.05 | 54 | 0.7256 | 0.1822 | 0.0333 |
| 0.05 | 66 | 0.2555 | 0.2175 | 0.0304 |
| 0.05 | 306 | -0.0148 | 0.2272 | 0.03 |
| 0.15 | 54 | 0.2157 | 0.1955 | 0.0303 |
| 0.15 | 66 | 0.2531 | 0.177 | 0.0304 |
| 0.15 | 294 | 0.2368 | 0.1969 | 0.0304 |
| 0.15 | 306 | -0.0493 | 0.1976 | 0.03 |
| 0.25 | 54 | 0.0709 | 0.2589 | 0.03 |
| 0.25 | 66 | 0.1115 | 0.1466 | 0.0301 |
| 0.25 | 78 | -0.6252 | 0.1889 | 0.0325 |
| 0.25 | 282 | 0.5587 | 0.1685 | 0.032 |
| 0.25 | 294 | -0.3039 | 0.1911 | 0.0306 |
| 0.25 | 306 | -0.3825 | 0.1947 | 0.031 |
| 0.35 | 54 | -0.0036 | 0.2146 | 0.03 |
| 0.35 | 66 | 0.0646 | 0.1601 | 0.03 |
| 0.35 | 78 | -0.0016 | 0.1874 | 0.03 |
| 0.35 | 282 | 0.0852 | 0.2142 | 0.03 |
| 0.35 | 294 | -0.115 | 0.1646 | 0.0301 |
| 0.35 | 306 | -0.1579 | 0.249 | 0.0302 |
| 0.45 | 54 | 0.4219 | 0.1834 | 0.0312 |
| 0.45 | 66 | -0.0036 | 0.2021 | 0.03 |
| 0.45 | 78 | 0.2176 | 0.2454 | 0.0303 |
| 0.45 | 90 | 0.1863 | 0.2241 | 0.0302 |
| 0.45 | 270 | 0.0462 | 0.2711 | 0.03 |
| 0.45 | 282 | -0.1433 | 0.1893 | 0.0301 |
| 0.45 | 294 | 0.1125 | 0.1635 | 0.0301 |
| 0.45 | 306 | -0.3818 | 0.2473 | 0.031 |
| 0.55 | 54 | 0.0168 | 0.2548 | 0.03 |
| 0.55 | 66 | -0.509 | 0.1913 | 0.0317 |
| 0.55 | 78 | -0.4848 | 0.1848 | 0.0315 |
| 0.55 | 90 | -0.0216 | 0.174 | 0.03 |
| 0.55 | 102 | -0.1921 | 0.17 | 0.0302 |
| 0.55 | 258 | 0.0118 | 0.2317 | 0.03 |
| 0.55 | 270 | -0.0875 | 0.1812 | 0.0301 |
| 0.55 | 282 | 0.2423 | 0.2157 | 0.0304 |
| 0.55 | 294 | -0.1247 | 0.2521 | 0.0301 |
| 0.55 | 306 | 0.5444 | 0.1944 | 0.0319 |
| 0.65 | 66 | -0.2633 | 0.2483 | 0.0305 |
| 0.65 | 78 | 0.1443 | 0.1419 | 0.0301 |
| 0.65 | 90 | 0.0396 | 0.1262 | 0.03 |
| 0.65 | 102 | 0.01 | 0.1313 | 0.03 |
| 0.65 | 114 | -0.0454 | 0.1643 | 0.03 |
| 0.65 | 126 | 0.2034 | 0.2482 | 0.0303 |
| 0.65 | 246 | -0.0807 | 0.1776 | 0.03 |
| 0.65 | 258 | -0.0834 | 0.1645 | 0.03 |
| 0.65 | 270 | 0.063 | 0.1603 | 0.03 |
| 0.65 | 282 | -0.0126 | 0.1939 | 0.03 |
| 0.65 | 294 | -0.1223 | 0.2298 | 0.0301 |
| 0.65 | 306 | -0.3958 | 0.2603 | 0.031 |
| 0.75 | 54 | -0.3244 | 0.2613 | 0.0307 |
| 0.75 | 66 | -0.007 | 0.2098 | 0.03 |
| 0.75 | 78 | 0.0239 | 0.1227 | 0.03 |
| 0.75 | 90 | 0.1471 | 0.1044 | 0.0301 |
| 0.75 | 102 | 0.0622 | 0.1137 | 0.03 |
| 0.75 | 114 | 0.2077 | 0.1296 | 0.0303 |
| 0.75 | 126 | 0.1755 | 0.1507 | 0.0302 |
| 0.75 | 138 | -0.1773 | 0.2184 | 0.0302 |
| 0.75 | 210 | -0.4279 | 0.2281 | 0.0312 |
| 0.75 | 222 | 0.0916 | 0.2044 | 0.0301 |
| 0.75 | 234 | -0.0119 | 0.1604 | 0.03 |
| 0.75 | 246 | -0.2752 | 0.1401 | 0.0305 |
| 0.75 | 258 | 0.1089 | 0.1313 | 0.0301 |
| 0.75 | 270 | 0.0064 | 0.1268 | 0.03 |
| 0.75 | 282 | -0.1287 | 0.1529 | 0.0301 |
| 0.75 | 294 | 0.0643 | 0.1785 | 0.03 |
| 0.75 | 306 | 0.3642 | 0.27 | 0.0309 |
| 0.85 | 54 | -0.0954 | 0.1892 | 0.0301 |
| 0.85 | 66 | 0.1276 | 0.1767 | 0.0301 |
| 0.85 | 78 | 0.1645 | 0.1459 | 0.0302 |
| 0.85 | 90 | 0.1537 | 0.1213 | 0.0302 |
| 0.85 | 102 | -0.1201 | 0.1105 | 0.0301 |
| 0.85 | 114 | -0.2056 | 0.1165 | 0.0303 |
| 0.85 | 126 | 0.3981 | 0.1249 | 0.031 |
| 0.85 | 138 | 0.1272 | 0.1802 | 0.0301 |
| 0.85 | 150 | -0.3251 | 0.1694 | 0.0307 |
| 0.85 | 198 | 0.0336 | 0.2074 | 0.03 |
| 0.85 | 210 | 0.0567 | 0.156 | 0.03 |
| 0.85 | 222 | -0.292 | 0.142 | 0.0306 |
| 0.85 | 234 | -0.1177 | 0.1198 | 0.0301 |
| 0.85 | 246 | -0.0134 | 0.1281 | 0.03 |
| 0.85 | 258 | -0.0267 | 0.1052 | 0.03 |
| 0.85 | 270 | -0.1711 | 0.1104 | 0.0302 |
| 0.85 | 282 | -0.1287 | 0.1133 | 0.0301 |
| 0.85 | 294 | -0.0732 | 0.1284 | 0.03 |
| 0.85 | 306 | -0.0248 | 0.1616 | 0.03 |
| 0.95 | 54 | -0.0613 | 0.1947 | 0.03 |
| 0.95 | 66 | -0.1519 | 0.2094 | 0.0302 |
| 0.95 | 90 | 0.279 | 0.1543 | 0.0305 |
| 0.95 | 102 | 0.0773 | 0.1596 | 0.03 |
| 0.95 | 114 | 0.1742 | 0.175 | 0.0302 |
| 0.95 | 126 | -0.2618 | 0.173 | 0.0305 |
| 0.95 | 138 | 0.0428 | 0.2055 | 0.03 |
| 0.95 | 150 | -0.1393 | 0.1975 | 0.0301 |
| 0.95 | 162 | -0.124 | 0.2421 | 0.0301 |
| 0.95 | 174 | 0.0127 | 0.2187 | 0.03 |
| 0.95 | 186 | 0.0922 | 0.2146 | 0.0301 |
| 0.95 | 198 | 0.4207 | 0.1643 | 0.0312 |
| 0.95 | 210 | -0.2618 | 0.1632 | 0.0305 |
| 0.95 | 222 | -0.0703 | 0.1459 | 0.03 |
| 0.95 | 234 | 0.1069 | 0.1454 | 0.0301 |
| 0.95 | 246 | -0.1194 | 0.1411 | 0.0301 |
| 0.95 | 258 | 0.075 | 0.15 | 0.03 |
| 0.95 | 270 | -0.2895 | 0.1282 | 0.0306 |
| 0.95 | 282 | -0.0049 | 0.1228 | 0.03 |
| 0.95 | 294 | -0.0526 | 0.1164 | 0.03 |
| 0.95 | 306 | -0.1551 | 0.1389 | 0.0302 |
| 0.95 | 318 | 0.3045 | 0.2385 | 0.0306 |