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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 : | 1445 GeV | |
| ε : | 0.9454 | |
| Ebeam : | 2.999 GeV | |
| εL: | 0.342 |
|
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 | 0.1879 | 0.2134 | 0.0302 |
| 0.05 | 66 | 0.3585 | 0.2337 | 0.0308 |
| 0.05 | 294 | 0.2107 | 0.2507 | 0.0303 |
| 0.05 | 306 | 0.1514 | 0.2727 | 0.0302 |
| 0.15 | 54 | 0.0138 | 0.1868 | 0.03 |
| 0.15 | 66 | -0.2426 | 0.1522 | 0.0304 |
| 0.15 | 78 | -0.2266 | 0.2363 | 0.0303 |
| 0.15 | 282 | 0.1043 | 0.2488 | 0.0301 |
| 0.15 | 294 | -0.0775 | 0.1621 | 0.03 |
| 0.15 | 306 | 0.097 | 0.2329 | 0.0301 |
| 0.25 | 54 | -0.1207 | 0.1984 | 0.0301 |
| 0.25 | 66 | 0.0849 | 0.1676 | 0.03 |
| 0.25 | 78 | -0.2612 | 0.1841 | 0.0305 |
| 0.25 | 282 | -0.0257 | 0.1951 | 0.03 |
| 0.25 | 294 | -0.1981 | 0.1628 | 0.0303 |
| 0.25 | 306 | 0.1933 | 0.2071 | 0.0302 |
| 0.35 | 54 | 0.2323 | 0.1858 | 0.0304 |
| 0.35 | 66 | -0.2221 | 0.1692 | 0.0303 |
| 0.35 | 78 | -0.1174 | 0.2156 | 0.0301 |
| 0.35 | 270 | -0.3375 | 0.2153 | 0.0307 |
| 0.35 | 282 | 0.0361 | 0.1571 | 0.03 |
| 0.35 | 294 | -0.1891 | 0.1544 | 0.0302 |
| 0.35 | 306 | -0.0707 | 0.253 | 0.03 |
| 0.45 | 54 | -0.5055 | 0.2153 | 0.0317 |
| 0.45 | 66 | 0.1242 | 0.201 | 0.0301 |
| 0.45 | 78 | -0.1032 | 0.2196 | 0.0301 |
| 0.45 | 90 | -0.1847 | 0.2036 | 0.0302 |
| 0.45 | 102 | -0.4589 | 0.1754 | 0.0314 |
| 0.45 | 270 | -0.2576 | 0.2261 | 0.0304 |
| 0.45 | 282 | 0.057 | 0.1684 | 0.03 |
| 0.45 | 294 | -0.0041 | 0.1555 | 0.03 |
| 0.45 | 306 | -0.1732 | 0.2654 | 0.0302 |
| 0.45 | 318 | 0.2213 | 0.2732 | 0.0303 |
| 0.55 | 54 | 0.1238 | 0.2155 | 0.0301 |
| 0.55 | 66 | 0.2844 | 0.2599 | 0.0305 |
| 0.55 | 78 | 0.0143 | 0.186 | 0.03 |
| 0.55 | 90 | -0.1075 | 0.1539 | 0.0301 |
| 0.55 | 102 | 0.0452 | 0.1524 | 0.03 |
| 0.55 | 114 | 0.1151 | 0.1948 | 0.0301 |
| 0.55 | 246 | 0.3773 | 0.2512 | 0.0309 |
| 0.55 | 258 | -0.1349 | 0.2141 | 0.0301 |
| 0.55 | 270 | 0.2059 | 0.2059 | 0.0303 |
| 0.55 | 282 | -0.195 | 0.1589 | 0.0303 |
| 0.55 | 294 | 0.1157 | 0.2034 | 0.0301 |
| 0.55 | 306 | 0.3351 | 0.1661 | 0.0307 |
| 0.65 | 54 | 0.59 | 0.1945 | 0.0322 |
| 0.65 | 78 | 0.0768 | 0.1502 | 0.03 |
| 0.65 | 90 | 0.0903 | 0.1163 | 0.0301 |
| 0.65 | 102 | 0.0469 | 0.1146 | 0.03 |
| 0.65 | 114 | 0.0895 | 0.151 | 0.0301 |
| 0.65 | 126 | 0.1096 | 0.169 | 0.0301 |
| 0.65 | 222 | -0.3587 | 0.2638 | 0.0308 |
| 0.65 | 234 | -0.265 | 0.2124 | 0.0305 |
| 0.65 | 246 | 0.0219 | 0.1556 | 0.03 |
| 0.65 | 258 | -0.0362 | 0.1535 | 0.03 |
| 0.65 | 270 | -0.279 | 0.177 | 0.0305 |
| 0.65 | 282 | -0.2056 | 0.1876 | 0.0303 |
| 0.65 | 294 | -0.2458 | 0.2484 | 0.0304 |
| 0.65 | 306 | 0.2395 | 0.2061 | 0.0304 |
| 0.75 | 66 | -0.4122 | 0.1605 | 0.0311 |
| 0.75 | 78 | 0.0493 | 0.1765 | 0.03 |
| 0.75 | 90 | 0.0455 | 0.1143 | 0.03 |
| 0.75 | 102 | 0.017 | 0.114 | 0.03 |
| 0.75 | 114 | 0.0044 | 0.117 | 0.03 |
| 0.75 | 126 | -0.2616 | 0.1352 | 0.0305 |
| 0.75 | 138 | 0.0545 | 0.201 | 0.03 |
| 0.75 | 198 | 0.3571 | 0.2428 | 0.0308 |
| 0.75 | 210 | 0.2121 | 0.1978 | 0.0303 |
| 0.75 | 222 | 0.0143 | 0.1666 | 0.03 |
| 0.75 | 234 | -0.1075 | 0.1579 | 0.0301 |
| 0.75 | 246 | -0.0133 | 0.1287 | 0.03 |
| 0.75 | 258 | -0.0917 | 0.1219 | 0.0301 |
| 0.75 | 270 | -0.1199 | 0.1384 | 0.0301 |
| 0.75 | 282 | -0.2258 | 0.1719 | 0.0303 |
| 0.75 | 294 | -0.2234 | 0.274 | 0.0303 |
| 0.85 | 54 | 0.2394 | 0.2223 | 0.0304 |
| 0.85 | 66 | 0.0223 | 0.1303 | 0.03 |
| 0.85 | 78 | 0.091 | 0.1955 | 0.0301 |
| 0.85 | 90 | 0.0844 | 0.125 | 0.03 |
| 0.85 | 102 | -0.0611 | 0.1187 | 0.03 |
| 0.85 | 114 | 0.0014 | 0.12 | 0.03 |
| 0.85 | 126 | -0.0484 | 0.1256 | 0.03 |
| 0.85 | 138 | 0.2652 | 0.1693 | 0.0305 |
| 0.85 | 150 | 0.1105 | 0.231 | 0.0301 |
| 0.85 | 162 | 0.1898 | 0.2432 | 0.0302 |
| 0.85 | 186 | -0.2744 | 0.2064 | 0.0305 |
| 0.85 | 198 | -0.0542 | 0.2207 | 0.03 |
| 0.85 | 210 | -0.2129 | 0.1581 | 0.0303 |
| 0.85 | 222 | 0.0106 | 0.1448 | 0.03 |
| 0.85 | 234 | 0.1331 | 0.1268 | 0.0301 |
| 0.85 | 246 | -0.0662 | 0.114 | 0.03 |
| 0.85 | 258 | 0.0603 | 0.106 | 0.03 |
| 0.85 | 270 | -0.0246 | 0.1149 | 0.03 |
| 0.85 | 282 | 0.2457 | 0.1189 | 0.0304 |
| 0.85 | 294 | -0.0505 | 0.1468 | 0.03 |
| 0.85 | 306 | -0.2364 | 0.2143 | 0.0304 |
| 0.95 | 54 | 0.1683 | 0.2109 | 0.0302 |
| 0.95 | 66 | -0.0978 | 0.1709 | 0.0301 |
| 0.95 | 78 | 0.3068 | 0.2175 | 0.0306 |
| 0.95 | 102 | -0.0361 | 0.1935 | 0.03 |
| 0.95 | 114 | 0.2062 | 0.1696 | 0.0303 |
| 0.95 | 126 | -0.268 | 0.1959 | 0.0305 |
| 0.95 | 138 | 0.3266 | 0.2121 | 0.0307 |
| 0.95 | 150 | 0.174 | 0.2354 | 0.0302 |
| 0.95 | 162 | -0.4218 | 0.2079 | 0.0312 |
| 0.95 | 186 | 0.1182 | 0.2414 | 0.0301 |
| 0.95 | 198 | -0.3315 | 0.2111 | 0.0307 |
| 0.95 | 210 | -0.1528 | 0.1609 | 0.0302 |
| 0.95 | 222 | -0.0331 | 0.1536 | 0.03 |
| 0.95 | 234 | 0.0558 | 0.1567 | 0.03 |
| 0.95 | 246 | -0.0137 | 0.1593 | 0.03 |
| 0.95 | 258 | 0.0023 | 0.1425 | 0.03 |
| 0.95 | 270 | -0.0516 | 0.1295 | 0.03 |
| 0.95 | 282 | 0.1137 | 0.1251 | 0.0301 |
| 0.95 | 294 | 0.0582 | 0.1236 | 0.03 |
| 0.95 | 306 | -0.0891 | 0.1517 | 0.0301 |
| 0.95 | 318 | -0.2196 | 0.2263 | 0.0303 |