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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 : | 0.0245 GeV2 | |
|---|---|---|
| W : | 1355 GeV | |
| ε : | 0.8796 | |
| Ebeam : | 1.3383 GeV | |
| εL: | 0.0789 |
|
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 | 42 | -0.2453 | 0.2423 | 0.0304 |
| 0.35 | 30 | 0.0928 | 0.2799 | 0.0301 |
| 0.35 | 42 | 0.0788 | 0.2089 | 0.03 |
| 0.35 | 54 | 0.1591 | 0.2674 | 0.0302 |
| 0.45 | 30 | -0.402 | 0.2377 | 0.0311 |
| 0.45 | 42 | 0.1402 | 0.232 | 0.0301 |
| 0.55 | 30 | 0.3723 | 0.1987 | 0.0309 |
| 0.55 | 42 | 0.1806 | 0.2639 | 0.0302 |
| 0.55 | 126 | 0.434 | 0.2595 | 0.0312 |
| 0.55 | 138 | -0.0742 | 0.2774 | 0.03 |
| 0.55 | 222 | -0.0057 | 0.2548 | 0.03 |
| 0.55 | 234 | 0.0859 | 0.2047 | 0.03 |
| 0.55 | 246 | -0.2705 | 0.1781 | 0.0305 |
| 0.55 | 258 | 0.0753 | 0.2349 | 0.03 |
| 0.65 | 114 | -0.1382 | 0.2779 | 0.0301 |
| 0.65 | 126 | 0.2485 | 0.2416 | 0.0304 |
| 0.65 | 138 | -0.2835 | 0.1599 | 0.0305 |
| 0.65 | 150 | -0.1095 | 0.1996 | 0.0301 |
| 0.65 | 162 | -0.0615 | 0.2472 | 0.03 |
| 0.65 | 174 | 0.2598 | 0.2764 | 0.0304 |
| 0.65 | 198 | 0.2259 | 0.2587 | 0.0303 |
| 0.65 | 210 | -0.4941 | 0.2146 | 0.0316 |
| 0.65 | 222 | 0.1498 | 0.167 | 0.0301 |
| 0.65 | 234 | -0.2237 | 0.1622 | 0.0303 |
| 0.65 | 246 | -0.0086 | 0.1508 | 0.03 |
| 0.65 | 258 | 0.1597 | 0.1706 | 0.0302 |
| 0.75 | 114 | 0.0268 | 0.2168 | 0.03 |
| 0.75 | 126 | -0.2237 | 0.1768 | 0.0303 |
| 0.75 | 138 | -0.1363 | 0.1623 | 0.0301 |
| 0.75 | 150 | -0.0198 | 0.1924 | 0.03 |
| 0.75 | 162 | 0.0796 | 0.2096 | 0.03 |
| 0.75 | 174 | -0.5426 | 0.249 | 0.0319 |
| 0.75 | 198 | -0.2196 | 0.2494 | 0.0303 |
| 0.75 | 210 | -0.1655 | 0.2322 | 0.0302 |
| 0.75 | 222 | 0.0833 | 0.1729 | 0.03 |
| 0.75 | 234 | -0.0719 | 0.1408 | 0.03 |
| 0.75 | 246 | -0.0753 | 0.1499 | 0.03 |
| 0.75 | 258 | 0.1174 | 0.1848 | 0.0301 |
| 0.75 | 270 | 0.0489 | 0.2693 | 0.03 |
| 0.85 | 114 | 0.0634 | 0.2845 | 0.03 |
| 0.85 | 126 | 0.0194 | 0.2636 | 0.03 |
| 0.85 | 138 | 0.2906 | 0.2105 | 0.0306 |
| 0.85 | 150 | 0.5012 | 0.22 | 0.0316 |
| 0.85 | 162 | -0.2221 | 0.2327 | 0.0303 |
| 0.85 | 210 | 0.2321 | 0.2026 | 0.0304 |
| 0.85 | 222 | 0.0155 | 0.1647 | 0.03 |
| 0.85 | 234 | -0.1076 | 0.1494 | 0.0301 |
| 0.85 | 246 | -0.0405 | 0.1451 | 0.03 |
| 0.85 | 258 | 0.023 | 0.1807 | 0.03 |
| 0.85 | 270 | 0.1139 | 0.2097 | 0.0301 |
| 0.95 | 114 | 0.2856 | 0.2658 | 0.0305 |
| 0.95 | 126 | 0.5361 | 0.238 | 0.0319 |
| 0.95 | 222 | -0.3057 | 0.2689 | 0.0306 |
| 0.95 | 234 | 0.0459 | 0.2521 | 0.03 |
| 0.95 | 246 | -0.0353 | 0.246 | 0.03 |
| 0.95 | 258 | -0.2116 | 0.274 | 0.0303 |
| 0.15 | 42 | 0.0534 | 0.3852 | 0.03 |
| 0.25 | 30 | 0.2761 | 0.3812 | 0.0305 |
| 0.25 | 42 | -0.1145 | 0.3191 | 0.0301 |
| 0.35 | 30 | -0.4728 | 0.2785 | 0.0315 |
| 0.35 | 42 | -0.3004 | 0.2477 | 0.0306 |
| 0.35 | 54 | -0.4989 | 0.2859 | 0.0316 |
| 0.45 | 18 | 0.1006 | 0.3549 | 0.0301 |
| 0.45 | 30 | 0.0958 | 0.3276 | 0.0301 |
| 0.45 | 42 | -0.1274 | 0.3251 | 0.0301 |
| 0.45 | 54 | 0.2625 | 0.3386 | 0.0305 |
| 0.55 | 30 | -0.0587 | 0.2792 | 0.03 |
| 0.55 | 42 | -0.2743 | 0.3078 | 0.0305 |
| 0.55 | 138 | -0.1125 | 0.3522 | 0.0301 |
| 0.55 | 222 | -0.0241 | 0.3206 | 0.03 |
| 0.55 | 234 | -0.551 | 0.2188 | 0.032 |
| 0.55 | 246 | 0.3644 | 0.2636 | 0.0309 |
| 0.55 | 258 | -0.6864 | 0.1857 | 0.033 |
| 0.65 | 114 | 0.5627 | 0.2641 | 0.032 |
| 0.65 | 126 | 0.0801 | 0.2789 | 0.03 |
| 0.65 | 138 | -0.2406 | 0.3487 | 0.0304 |
| 0.65 | 150 | 0.1528 | 0.3022 | 0.0302 |
| 0.65 | 162 | 0.3193 | 0.3048 | 0.0307 |
| 0.65 | 198 | 0.6481 | 0.2684 | 0.0327 |
| 0.65 | 210 | 0.1354 | 0.3129 | 0.0301 |
| 0.65 | 222 | 0.1891 | 0.2273 | 0.0302 |
| 0.65 | 234 | 0.2986 | 0.2095 | 0.0306 |
| 0.65 | 246 | -0.0924 | 0.2294 | 0.0301 |
| 0.65 | 258 | 0.3934 | 0.2037 | 0.031 |
| 0.65 | 270 | 0.1986 | 0.3203 | 0.0303 |
| 0.75 | 114 | 0.0031 | 0.3461 | 0.03 |
| 0.75 | 126 | 0.1371 | 0.2998 | 0.0301 |
| 0.75 | 138 | 0.3817 | 0.2306 | 0.031 |
| 0.75 | 150 | 0.0222 | 0.2671 | 0.03 |
| 0.75 | 162 | -0.0183 | 0.3843 | 0.03 |
| 0.75 | 174 | 0.1391 | 0.4538 | 0.0301 |
| 0.75 | 210 | -0.0448 | 0.3178 | 0.03 |
| 0.75 | 222 | -0.0388 | 0.2733 | 0.03 |
| 0.75 | 234 | 0.0937 | 0.225 | 0.0301 |
| 0.75 | 246 | 0.0166 | 0.2465 | 0.03 |
| 0.75 | 258 | 0.0071 | 0.2394 | 0.03 |
| 0.75 | 270 | 0.6285 | 0.2038 | 0.0325 |
| 0.85 | 114 | -0.3987 | 0.3725 | 0.031 |
| 0.85 | 126 | 0.4692 | 0.2936 | 0.0314 |
| 0.85 | 138 | 0.1516 | 0.3293 | 0.0302 |
| 0.85 | 150 | 0.3615 | 0.3839 | 0.0309 |
| 0.85 | 162 | 0.3909 | 0.3112 | 0.031 |
| 0.85 | 174 | -0.3279 | 0.3955 | 0.0307 |
| 0.85 | 210 | -0.288 | 0.3108 | 0.0305 |
| 0.85 | 222 | -0.1182 | 0.2937 | 0.0301 |
| 0.85 | 234 | -0.0217 | 0.2083 | 0.03 |
| 0.85 | 246 | -0.1151 | 0.2038 | 0.0301 |
| 0.85 | 258 | -0.3225 | 0.2371 | 0.0307 |
| 0.85 | 270 | 0.3954 | 0.2858 | 0.031 |
| 0.95 | 126 | 0.0425 | 0.3855 | 0.03 |
| 0.95 | 222 | 0.1176 | 0.3917 | 0.0301 |
| 0.95 | 234 | 0.0852 | 0.3313 | 0.03 |
| 0.95 | 246 | -0.0716 | 0.3634 | 0.03 |
| 0.95 | 258 | 0.02 | 0.4154 | 0.03 |