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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 : | 1535 GeV | |
| ε : | 0.9255 | |
| Ebeam : | 2.999 GeV | |
| εL: | 0.2365 |
|
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 | 0.0763 | 0.2643 | 0.03 |
| 0.05 | 66 | -0.1999 | 0.2846 | 0.0303 |
| 0.15 | 66 | 0.4405 | 0.1976 | 0.0313 |
| 0.15 | 282 | 0.4297 | 0.2299 | 0.0312 |
| 0.15 | 294 | -0.0723 | 0.2074 | 0.03 |
| 0.25 | 66 | -0.2714 | 0.167 | 0.0305 |
| 0.25 | 78 | 0.1085 | 0.2299 | 0.0301 |
| 0.25 | 270 | 0.1358 | 0.2663 | 0.0301 |
| 0.25 | 282 | -0.4755 | 0.1654 | 0.0315 |
| 0.25 | 294 | -0.1028 | 0.2109 | 0.0301 |
| 0.25 | 306 | 0.4547 | 0.251 | 0.0313 |
| 0.35 | 66 | -0.0949 | 0.1838 | 0.0301 |
| 0.35 | 78 | 0.1059 | 0.2204 | 0.0301 |
| 0.35 | 270 | -0.0376 | 0.198 | 0.03 |
| 0.35 | 282 | 0.139 | 0.1552 | 0.0301 |
| 0.35 | 294 | 0.176 | 0.1651 | 0.0302 |
| 0.35 | 306 | 0.2208 | 0.2707 | 0.0303 |
| 0.45 | 54 | 0.3916 | 0.2433 | 0.031 |
| 0.45 | 66 | -0.2362 | 0.2412 | 0.0304 |
| 0.45 | 78 | 0.0289 | 0.2767 | 0.03 |
| 0.45 | 90 | 0.3711 | 0.2088 | 0.0309 |
| 0.45 | 102 | 0.4087 | 0.1881 | 0.0311 |
| 0.45 | 114 | 0.3067 | 0.2285 | 0.0306 |
| 0.45 | 270 | 0.0796 | 0.1822 | 0.03 |
| 0.45 | 282 | -0.1121 | 0.1757 | 0.0301 |
| 0.45 | 294 | 0.1938 | 0.1917 | 0.0302 |
| 0.55 | 54 | -0.0071 | 0.2252 | 0.03 |
| 0.55 | 78 | 0.1067 | 0.2508 | 0.0301 |
| 0.55 | 90 | 0.0055 | 0.2124 | 0.03 |
| 0.55 | 102 | 0.0765 | 0.1541 | 0.03 |
| 0.55 | 114 | -0.096 | 0.167 | 0.0301 |
| 0.55 | 126 | 0.1189 | 0.2324 | 0.0301 |
| 0.55 | 234 | 0.1412 | 0.2514 | 0.0301 |
| 0.55 | 246 | -0.2146 | 0.2223 | 0.0303 |
| 0.55 | 258 | -0.4538 | 0.2144 | 0.0313 |
| 0.55 | 270 | -0.1041 | 0.182 | 0.0301 |
| 0.55 | 282 | -0.1202 | 0.1811 | 0.0301 |
| 0.55 | 294 | -0.7409 | 0.1794 | 0.0335 |
| 0.55 | 306 | -0.0569 | 0.2064 | 0.03 |
| 0.65 | 78 | 0.4587 | 0.2337 | 0.0314 |
| 0.65 | 90 | 0.1148 | 0.1339 | 0.0301 |
| 0.65 | 102 | 0.0894 | 0.1323 | 0.0301 |
| 0.65 | 114 | -0.2453 | 0.1499 | 0.0304 |
| 0.65 | 126 | -0.2812 | 0.1499 | 0.0305 |
| 0.65 | 138 | -0.4106 | 0.1912 | 0.0311 |
| 0.65 | 210 | -0.1993 | 0.2209 | 0.0303 |
| 0.65 | 222 | -0.148 | 0.1883 | 0.0301 |
| 0.65 | 234 | -0.0784 | 0.1659 | 0.03 |
| 0.65 | 246 | 0.1834 | 0.1534 | 0.0302 |
| 0.65 | 258 | -0.0461 | 0.1929 | 0.03 |
| 0.65 | 270 | -0.1154 | 0.2218 | 0.0301 |
| 0.65 | 294 | 0.1046 | 0.1646 | 0.0301 |
| 0.65 | 306 | 0.1792 | 0.1717 | 0.0302 |
| 0.75 | 66 | 0.1696 | 0.1977 | 0.0302 |
| 0.75 | 78 | -0.0231 | 0.2018 | 0.03 |
| 0.75 | 90 | -0.1365 | 0.1585 | 0.0301 |
| 0.75 | 102 | 0.2004 | 0.125 | 0.0303 |
| 0.75 | 114 | 0.0371 | 0.1299 | 0.03 |
| 0.75 | 126 | 0.0014 | 0.14 | 0.03 |
| 0.75 | 138 | 0.1499 | 0.1995 | 0.0301 |
| 0.75 | 150 | 0.0751 | 0.2666 | 0.03 |
| 0.75 | 174 | -0.316 | 0.258 | 0.0307 |
| 0.75 | 186 | -0.1839 | 0.2383 | 0.0302 |
| 0.75 | 198 | 0.0602 | 0.1705 | 0.03 |
| 0.75 | 210 | -0.1896 | 0.1617 | 0.0302 |
| 0.75 | 222 | 0.2215 | 0.1534 | 0.0303 |
| 0.75 | 234 | 0.1026 | 0.1441 | 0.0301 |
| 0.75 | 246 | -0.0665 | 0.1492 | 0.03 |
| 0.75 | 258 | -0.145 | 0.1743 | 0.0301 |
| 0.75 | 270 | 0.0843 | 0.2239 | 0.03 |
| 0.75 | 294 | 0.1522 | 0.2093 | 0.0302 |
| 0.75 | 306 | -0.0681 | 0.2689 | 0.03 |
| 0.85 | 66 | 0.1706 | 0.1487 | 0.0302 |
| 0.85 | 78 | 0.076 | 0.1353 | 0.03 |
| 0.85 | 90 | -0.0885 | 0.1907 | 0.0301 |
| 0.85 | 102 | 0.1202 | 0.1892 | 0.0301 |
| 0.85 | 114 | -0.0523 | 0.1464 | 0.03 |
| 0.85 | 126 | -0.0194 | 0.1684 | 0.03 |
| 0.85 | 138 | -0.0138 | 0.1899 | 0.03 |
| 0.85 | 162 | 0.0016 | 0.2688 | 0.03 |
| 0.85 | 174 | 0.031 | 0.2828 | 0.03 |
| 0.85 | 186 | -0.2223 | 0.1852 | 0.0303 |
| 0.85 | 198 | 0.0838 | 0.1673 | 0.03 |
| 0.85 | 210 | -0.0072 | 0.1639 | 0.03 |
| 0.85 | 222 | -0.095 | 0.1405 | 0.0301 |
| 0.85 | 234 | -0.231 | 0.124 | 0.0304 |
| 0.85 | 246 | 0.0526 | 0.1157 | 0.03 |
| 0.85 | 258 | -0.4096 | 0.1186 | 0.0311 |
| 0.85 | 270 | -0.0559 | 0.1427 | 0.03 |
| 0.85 | 282 | -0.1488 | 0.194 | 0.0301 |
| 0.85 | 294 | -0.1988 | 0.1946 | 0.0303 |
| 0.95 | 66 | 0.1614 | 0.2193 | 0.0302 |
| 0.95 | 78 | -0.218 | 0.1617 | 0.0303 |
| 0.95 | 90 | 0.1679 | 0.2162 | 0.0302 |
| 0.95 | 150 | 0.0006 | 0.2624 | 0.03 |
| 0.95 | 162 | 0.4278 | 0.241 | 0.0312 |
| 0.95 | 174 | 0.0337 | 0.2187 | 0.03 |
| 0.95 | 186 | 0.1078 | 0.1933 | 0.0301 |
| 0.95 | 198 | -0.1918 | 0.2127 | 0.0302 |
| 0.95 | 210 | 0.0439 | 0.1913 | 0.03 |
| 0.95 | 222 | -0.0818 | 0.1441 | 0.03 |
| 0.95 | 234 | -0.0182 | 0.1448 | 0.03 |
| 0.95 | 246 | -0.0786 | 0.1466 | 0.03 |
| 0.95 | 258 | -0.2243 | 0.1277 | 0.0303 |
| 0.95 | 270 | -0.2754 | 0.1299 | 0.0305 |
| 0.95 | 282 | -0.0129 | 0.1408 | 0.03 |
| 0.95 | 294 | 0.0322 | 0.1503 | 0.03 |
| 0.95 | 306 | 0.0012 | 0.1866 | 0.03 |