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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 : | 0.101 GeV2 | |
|---|---|---|
| W : | 1295 GeV | |
| ε : | 0.9604 | |
| Ebeam : | 2.2596 GeV | |
| εL: | 0.4238 |
|
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 | 306 | -0.0519 | 0.1899 | 0.03 |
| 0.25 | 66 | -0.0077 | 0.1897 | 0.03 |
| 0.25 | 78 | 0.1517 | 0.2494 | 0.0302 |
| 0.25 | 294 | 0.0108 | 0.2119 | 0.03 |
| 0.25 | 306 | -0.1202 | 0.2331 | 0.0301 |
| 0.35 | 66 | -0.2466 | 0.1572 | 0.0304 |
| 0.35 | 78 | 0.1266 | 0.1659 | 0.0301 |
| 0.35 | 294 | -0.1175 | 0.2054 | 0.0301 |
| 0.35 | 306 | 0.06 | 0.2349 | 0.03 |
| 0.45 | 66 | -0.1037 | 0.1831 | 0.0301 |
| 0.45 | 78 | 0.2086 | 0.1631 | 0.0303 |
| 0.45 | 282 | 0.2058 | 0.2413 | 0.0303 |
| 0.55 | 66 | 0.0584 | 0.2055 | 0.03 |
| 0.55 | 78 | 0.1033 | 0.1942 | 0.0301 |
| 0.55 | 90 | -0.2206 | 0.1986 | 0.0303 |
| 0.55 | 270 | -0.1861 | 0.2271 | 0.0302 |
| 0.55 | 282 | 0.209 | 0.1736 | 0.0303 |
| 0.65 | 66 | 0.2328 | 0.2508 | 0.0304 |
| 0.65 | 78 | -0.3565 | 0.205 | 0.0308 |
| 0.65 | 114 | -0.2921 | 0.2333 | 0.0306 |
| 0.65 | 258 | 0.0824 | 0.1784 | 0.03 |
| 0.65 | 270 | -0.0507 | 0.1929 | 0.03 |
| 0.65 | 282 | -0.1553 | 0.2065 | 0.0302 |
| 0.75 | 102 | -0.0467 | 0.1657 | 0.03 |
| 0.75 | 114 | -0.1248 | 0.1685 | 0.0301 |
| 0.75 | 126 | -0.0094 | 0.188 | 0.03 |
| 0.75 | 222 | 0.4629 | 0.2393 | 0.0314 |
| 0.75 | 234 | 0.065 | 0.2125 | 0.03 |
| 0.75 | 246 | -0.0684 | 0.176 | 0.03 |
| 0.75 | 258 | 0.0556 | 0.1355 | 0.03 |
| 0.75 | 270 | -0.2962 | 0.1445 | 0.0306 |
| 0.75 | 282 | -0.2634 | 0.1541 | 0.0305 |
| 0.85 | 90 | -0.0515 | 0.1965 | 0.03 |
| 0.85 | 102 | -0.0308 | 0.1415 | 0.03 |
| 0.85 | 114 | 0.1822 | 0.1333 | 0.0302 |
| 0.85 | 126 | 0.123 | 0.1467 | 0.0301 |
| 0.85 | 138 | -0.1468 | 0.1906 | 0.0301 |
| 0.85 | 150 | 0.0271 | 0.2372 | 0.03 |
| 0.85 | 162 | 0.2078 | 0.2387 | 0.0303 |
| 0.85 | 174 | 0.0691 | 0.2564 | 0.03 |
| 0.85 | 222 | -0.0132 | 0.2483 | 0.03 |
| 0.85 | 234 | -0.2675 | 0.1775 | 0.0305 |
| 0.85 | 246 | 0.1394 | 0.1588 | 0.0301 |
| 0.85 | 258 | 0.0898 | 0.1626 | 0.0301 |
| 0.85 | 270 | 0.164 | 0.1542 | 0.0302 |
| 0.85 | 282 | -0.2703 | 0.1558 | 0.0305 |
| 0.95 | 102 | 0.2175 | 0.2458 | 0.0303 |
| 0.95 | 114 | 0.1052 | 0.1808 | 0.0301 |
| 0.95 | 126 | 0.1184 | 0.1986 | 0.0301 |
| 0.95 | 138 | 0.0259 | 0.1935 | 0.03 |
| 0.95 | 150 | -0.1002 | 0.2272 | 0.0301 |
| 0.95 | 162 | 0.1072 | 0.2161 | 0.0301 |
| 0.95 | 174 | -0.1892 | 0.2262 | 0.0302 |
| 0.95 | 210 | -0.1879 | 0.2158 | 0.0302 |
| 0.95 | 222 | 0.0325 | 0.2402 | 0.03 |
| 0.95 | 234 | -0.2363 | 0.252 | 0.0304 |
| 0.95 | 246 | -0.2163 | 0.1965 | 0.0303 |
| 0.95 | 258 | -0.0361 | 0.1833 | 0.03 |
| 0.95 | 270 | 0.2122 | 0.1938 | 0.0303 |
| 0.05 | 306 | 0.0272 | 0.2578 | 0.03 |
| 0.15 | 306 | -0.271 | 0.2348 | 0.0305 |
| 0.25 | 66 | 0.0836 | 0.1854 | 0.03 |
| 0.25 | 306 | -0.3074 | 0.2009 | 0.0306 |
| 0.35 | 66 | 0.1146 | 0.1728 | 0.0301 |
| 0.35 | 78 | 0.4063 | 0.1885 | 0.0311 |
| 0.35 | 294 | -0.0168 | 0.1759 | 0.03 |
| 0.35 | 306 | 0.2828 | 0.2439 | 0.0305 |
| 0.45 | 66 | -0.1293 | 0.1943 | 0.0301 |
| 0.45 | 78 | -0.0154 | 0.1741 | 0.03 |
| 0.45 | 282 | -0.1982 | 0.2176 | 0.0303 |
| 0.45 | 294 | -0.2071 | 0.2424 | 0.0303 |
| 0.55 | 66 | 0.2766 | 0.2348 | 0.0305 |
| 0.55 | 78 | 0.2386 | 0.1824 | 0.0304 |
| 0.55 | 270 | 0.3993 | 0.1797 | 0.031 |
| 0.55 | 282 | -0.239 | 0.2148 | 0.0304 |
| 0.55 | 294 | 0.1717 | 0.2604 | 0.0302 |
| 0.65 | 78 | 0.1919 | 0.2223 | 0.0302 |
| 0.65 | 90 | 0.159 | 0.2214 | 0.0302 |
| 0.65 | 102 | 0.0194 | 0.2662 | 0.03 |
| 0.65 | 258 | -0.0197 | 0.2133 | 0.03 |
| 0.65 | 270 | -0.0813 | 0.1661 | 0.03 |
| 0.65 | 282 | -0.0182 | 0.1749 | 0.03 |
| 0.75 | 102 | 0.1504 | 0.2125 | 0.0302 |
| 0.75 | 114 | 0.0741 | 0.1841 | 0.03 |
| 0.75 | 126 | 0.1468 | 0.1904 | 0.0301 |
| 0.75 | 234 | -0.1454 | 0.2312 | 0.0301 |
| 0.75 | 246 | -0.1986 | 0.1862 | 0.0303 |
| 0.75 | 258 | -0.2019 | 0.1579 | 0.0303 |
| 0.75 | 270 | 0.068 | 0.1566 | 0.03 |
| 0.75 | 282 | 0.0997 | 0.2101 | 0.0301 |
| 0.75 | 294 | 0.125 | 0.2359 | 0.0301 |
| 0.85 | 90 | 0.1629 | 0.2185 | 0.0302 |
| 0.85 | 102 | 0.1062 | 0.2004 | 0.0301 |
| 0.85 | 114 | -0.0346 | 0.148 | 0.03 |
| 0.85 | 126 | 0.3889 | 0.1484 | 0.031 |
| 0.85 | 138 | 0.0154 | 0.1612 | 0.03 |
| 0.85 | 150 | -0.0951 | 0.2139 | 0.0301 |
| 0.85 | 234 | 0.0669 | 0.221 | 0.03 |
| 0.85 | 246 | 0.1846 | 0.1644 | 0.0302 |
| 0.85 | 258 | -0.0509 | 0.153 | 0.03 |
| 0.85 | 270 | 0.055 | 0.1516 | 0.03 |
| 0.85 | 282 | 0.2057 | 0.162 | 0.0303 |
| 0.95 | 102 | 0.0236 | 0.2432 | 0.03 |
| 0.95 | 114 | -0.0025 | 0.1923 | 0.03 |
| 0.95 | 126 | 0.3795 | 0.1836 | 0.0309 |
| 0.95 | 138 | 0.0779 | 0.2286 | 0.03 |
| 0.95 | 150 | -0.0136 | 0.2705 | 0.03 |
| 0.95 | 234 | -0.1696 | 0.228 | 0.0302 |
| 0.95 | 246 | 0.0633 | 0.2281 | 0.03 |
| 0.95 | 258 | -0.1282 | 0.2116 | 0.0301 |
| 0.95 | 270 | 0.0813 | 0.2075 | 0.03 |