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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 : | 0.0348 GeV2 | |
|---|---|---|
| W : | 1265 GeV | |
| ε : | 0.9268 | |
| Ebeam : | 1.3383 GeV | |
| εL: | 0.1995 |
|
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 | 42 | -0.0731 | 0.1893 | 0.03 |
| 0.15 | 54 | 0.0843 | 0.265 | 0.03 |
| 0.25 | 30 | -0.0082 | 0.2736 | 0.03 |
| 0.25 | 42 | -0.001 | 0.2067 | 0.03 |
| 0.25 | 54 | -0.0382 | 0.2607 | 0.03 |
| 0.35 | 30 | 0.1747 | 0.206 | 0.0302 |
| 0.35 | 42 | -0.2776 | 0.2519 | 0.0305 |
| 0.35 | 54 | -0.3482 | 0.2523 | 0.0308 |
| 0.45 | 42 | -0.1689 | 0.2395 | 0.0302 |
| 0.45 | 270 | -0.3154 | 0.1916 | 0.0307 |
| 0.55 | 246 | -0.2579 | 0.1697 | 0.0304 |
| 0.55 | 258 | 0.2246 | 0.1616 | 0.0303 |
| 0.55 | 270 | -0.0648 | 0.1822 | 0.03 |
| 0.55 | 282 | -0.042 | 0.2068 | 0.03 |
| 0.65 | 138 | 0.1984 | 0.2649 | 0.0303 |
| 0.65 | 222 | 0.1009 | 0.2674 | 0.0301 |
| 0.65 | 234 | 0.3227 | 0.1995 | 0.0307 |
| 0.65 | 246 | 0.0815 | 0.1318 | 0.03 |
| 0.65 | 258 | -0.0499 | 0.1269 | 0.03 |
| 0.65 | 270 | 0.1302 | 0.1393 | 0.0301 |
| 0.65 | 282 | 0.2167 | 0.1937 | 0.0303 |
| 0.75 | 126 | -0.1278 | 0.2194 | 0.0301 |
| 0.75 | 138 | 0.125 | 0.1647 | 0.0301 |
| 0.75 | 150 | 0.2745 | 0.171 | 0.0305 |
| 0.75 | 162 | 0.3328 | 0.202 | 0.0307 |
| 0.75 | 174 | -0.0549 | 0.229 | 0.03 |
| 0.75 | 186 | 0.3213 | 0.2369 | 0.0307 |
| 0.75 | 222 | 0.2866 | 0.1885 | 0.0305 |
| 0.75 | 234 | -0.1813 | 0.1717 | 0.0302 |
| 0.75 | 246 | 0.0957 | 0.1224 | 0.0301 |
| 0.75 | 258 | 0.1086 | 0.117 | 0.0301 |
| 0.75 | 270 | 0.0429 | 0.138 | 0.03 |
| 0.75 | 282 | 0.04 | 0.185 | 0.03 |
| 0.85 | 114 | -0.1201 | 0.2459 | 0.0301 |
| 0.85 | 126 | 0.0776 | 0.1901 | 0.03 |
| 0.85 | 138 | 0.0048 | 0.1636 | 0.03 |
| 0.85 | 150 | -0.1245 | 0.1584 | 0.0301 |
| 0.85 | 162 | 0.3609 | 0.1687 | 0.0309 |
| 0.85 | 174 | 0.1898 | 0.1779 | 0.0302 |
| 0.85 | 186 | -0.2412 | 0.2502 | 0.0304 |
| 0.85 | 198 | -0.0698 | 0.1978 | 0.03 |
| 0.85 | 210 | -0.3041 | 0.2006 | 0.0306 |
| 0.85 | 222 | 0.0939 | 0.2003 | 0.0301 |
| 0.85 | 234 | 0.0569 | 0.1724 | 0.03 |
| 0.85 | 246 | -0.0291 | 0.1512 | 0.03 |
| 0.85 | 258 | -0.0399 | 0.1261 | 0.03 |
| 0.85 | 270 | -0.3438 | 0.1372 | 0.0308 |
| 0.85 | 282 | 0.3703 | 0.2158 | 0.0309 |
| 0.95 | 150 | 0.3164 | 0.2404 | 0.0307 |
| 0.95 | 162 | -0.1302 | 0.2818 | 0.0301 |
| 0.95 | 174 | 0.5084 | 0.2304 | 0.0317 |
| 0.95 | 186 | 0.114 | 0.2409 | 0.0301 |
| 0.95 | 246 | 0.0201 | 0.2562 | 0.03 |
| 0.95 | 258 | -0.5922 | 0.2246 | 0.0323 |
| 0.05 | 42 | 0.0361 | 0.3785 | 0.03 |
| 0.15 | 42 | 0.0803 | 0.2712 | 0.03 |
| 0.15 | 54 | 0.1656 | 0.3596 | 0.0302 |
| 0.25 | 42 | 0.4666 | 0.3023 | 0.0314 |
| 0.25 | 54 | 0.4277 | 0.2751 | 0.0312 |
| 0.35 | 30 | -0.5205 | 0.2088 | 0.0318 |
| 0.35 | 42 | 0.0976 | 0.3274 | 0.0301 |
| 0.45 | 42 | -0.1651 | 0.3243 | 0.0302 |
| 0.45 | 270 | 0.488 | 0.2351 | 0.0315 |
| 0.45 | 282 | -0.0767 | 0.3784 | 0.03 |
| 0.55 | 246 | 0.0913 | 0.2856 | 0.0301 |
| 0.55 | 258 | -0.1213 | 0.2643 | 0.0301 |
| 0.55 | 270 | -0.3893 | 0.212 | 0.031 |
| 0.55 | 282 | -0.2156 | 0.2483 | 0.0303 |
| 0.65 | 138 | 0.1767 | 0.2994 | 0.0302 |
| 0.65 | 150 | -0.0115 | 0.3845 | 0.03 |
| 0.65 | 222 | 0.5313 | 0.265 | 0.0318 |
| 0.65 | 234 | 0.5124 | 0.2349 | 0.0317 |
| 0.65 | 246 | 0.1343 | 0.2184 | 0.0301 |
| 0.65 | 258 | 0.0164 | 0.2011 | 0.03 |
| 0.65 | 270 | -0.1591 | 0.2006 | 0.0302 |
| 0.65 | 282 | 0.3683 | 0.2577 | 0.0309 |
| 0.75 | 114 | -0.2934 | 0.3374 | 0.0306 |
| 0.75 | 126 | 0.25 | 0.27 | 0.0304 |
| 0.75 | 138 | -0.3237 | 0.1998 | 0.0307 |
| 0.75 | 150 | -0.0697 | 0.2282 | 0.03 |
| 0.75 | 162 | 0.1503 | 0.3402 | 0.0302 |
| 0.75 | 174 | 0.0713 | 0.3457 | 0.03 |
| 0.75 | 210 | -0.0799 | 0.3789 | 0.03 |
| 0.75 | 222 | -0.3007 | 0.2637 | 0.0306 |
| 0.75 | 234 | -0.0221 | 0.2435 | 0.03 |
| 0.75 | 246 | -0.1138 | 0.2123 | 0.0301 |
| 0.75 | 258 | -0.3032 | 0.1773 | 0.0306 |
| 0.75 | 270 | -0.3373 | 0.1969 | 0.0307 |
| 0.75 | 282 | 0.2704 | 0.244 | 0.0305 |
| 0.85 | 114 | -0.4283 | 0.3264 | 0.0312 |
| 0.85 | 126 | -0.2502 | 0.2518 | 0.0304 |
| 0.85 | 138 | 0.312 | 0.2125 | 0.0306 |
| 0.85 | 150 | 0 | 0.2545 | 0.03 |
| 0.85 | 162 | -0.0937 | 0.2283 | 0.0301 |
| 0.85 | 174 | 0.378 | 0.2263 | 0.0309 |
| 0.85 | 186 | -0.1922 | 0.2876 | 0.0302 |
| 0.85 | 198 | -0.2496 | 0.2874 | 0.0304 |
| 0.85 | 210 | 0.5301 | 0.2386 | 0.0318 |
| 0.85 | 222 | 0.1928 | 0.2706 | 0.0302 |
| 0.85 | 234 | -0.4822 | 0.2349 | 0.0315 |
| 0.85 | 246 | -0.3148 | 0.1964 | 0.0307 |
| 0.85 | 258 | -0.4046 | 0.1931 | 0.0311 |
| 0.85 | 270 | -0.2948 | 0.1948 | 0.0306 |
| 0.85 | 282 | -0.3179 | 0.2828 | 0.0307 |
| 0.95 | 138 | -0.5367 | 0.2572 | 0.0319 |
| 0.95 | 150 | -0.1397 | 0.3216 | 0.0301 |
| 0.95 | 246 | 0.0679 | 0.4022 | 0.03 |