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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 : | 1505 GeV | |
| ε : | 0.9005 | |
| Ebeam : | 2.2596 GeV | |
| εL: | 0.1451 |
|
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 | 282 | 0.2876 | 0.2299 | 0.0305 |
| 0.25 | 294 | 0.0115 | 0.2279 | 0.03 |
| 0.35 | 66 | 0.02 | 0.2291 | 0.03 |
| 0.35 | 78 | -0.0089 | 0.2035 | 0.03 |
| 0.35 | 270 | 0.2815 | 0.2471 | 0.0305 |
| 0.35 | 282 | 0.1142 | 0.1953 | 0.0301 |
| 0.35 | 294 | 0.1324 | 0.229 | 0.0301 |
| 0.45 | 66 | 0.1514 | 0.2408 | 0.0302 |
| 0.45 | 78 | -0.04 | 0.2035 | 0.03 |
| 0.45 | 270 | -0.2077 | 0.2393 | 0.0303 |
| 0.45 | 282 | -0.1302 | 0.1617 | 0.0301 |
| 0.45 | 294 | 0.2826 | 0.1913 | 0.0305 |
| 0.55 | 78 | 0.0305 | 0.2549 | 0.03 |
| 0.55 | 90 | -0.0988 | 0.255 | 0.0301 |
| 0.55 | 102 | -0.2007 | 0.254 | 0.0303 |
| 0.55 | 114 | -0.1483 | 0.242 | 0.0301 |
| 0.55 | 126 | -0.2277 | 0.2497 | 0.0303 |
| 0.55 | 258 | -0.0345 | 0.2499 | 0.03 |
| 0.55 | 270 | -0.7704 | 0.2071 | 0.0337 |
| 0.55 | 282 | -0.2907 | 0.1728 | 0.0306 |
| 0.65 | 66 | 0.2294 | 0.2119 | 0.0303 |
| 0.65 | 102 | -0.2121 | 0.2195 | 0.0303 |
| 0.65 | 114 | 0.1921 | 0.1995 | 0.0302 |
| 0.65 | 126 | -0.034 | 0.1835 | 0.03 |
| 0.65 | 138 | -0.6297 | 0.2096 | 0.0325 |
| 0.65 | 198 | 0.0403 | 0.2648 | 0.03 |
| 0.65 | 222 | -0.0422 | 0.2155 | 0.03 |
| 0.65 | 234 | 0.0279 | 0.2441 | 0.03 |
| 0.65 | 246 | 0.2938 | 0.2479 | 0.0306 |
| 0.65 | 258 | -0.2005 | 0.2252 | 0.0303 |
| 0.65 | 270 | -0.72 | 0.2098 | 0.0333 |
| 0.65 | 294 | 0.0876 | 0.2071 | 0.0301 |
| 0.75 | 90 | -0.1974 | 0.257 | 0.0303 |
| 0.75 | 114 | -0.0375 | 0.1875 | 0.03 |
| 0.75 | 126 | -0.0177 | 0.2185 | 0.03 |
| 0.75 | 138 | -0.0263 | 0.2216 | 0.03 |
| 0.75 | 150 | 0.064 | 0.2575 | 0.03 |
| 0.75 | 198 | -0.1253 | 0.2475 | 0.0301 |
| 0.75 | 210 | 0.4167 | 0.1875 | 0.0311 |
| 0.75 | 222 | 0.4448 | 0.2075 | 0.0313 |
| 0.75 | 234 | 0.1894 | 0.2065 | 0.0302 |
| 0.75 | 246 | -0.5373 | 0.206 | 0.0319 |
| 0.75 | 258 | -0.2628 | 0.2575 | 0.0305 |
| 0.75 | 282 | -0.3068 | 0.2279 | 0.0306 |
| 0.75 | 294 | -0.381 | 0.2131 | 0.031 |
| 0.85 | 90 | -0.4901 | 0.2009 | 0.0316 |
| 0.85 | 114 | 0.2797 | 0.2205 | 0.0305 |
| 0.85 | 198 | -0.1308 | 0.258 | 0.0301 |
| 0.85 | 222 | 0.0397 | 0.2181 | 0.03 |
| 0.85 | 234 | -0.3483 | 0.1775 | 0.0308 |
| 0.85 | 246 | -0.0177 | 0.1709 | 0.03 |
| 0.85 | 258 | -0.2643 | 0.1874 | 0.0305 |
| 0.85 | 270 | 0.0707 | 0.2685 | 0.03 |
| 0.95 | 102 | 0.4771 | 0.2152 | 0.0315 |
| 0.95 | 222 | 0.249 | 0.2312 | 0.0304 |
| 0.95 | 234 | -0.0756 | 0.2486 | 0.03 |
| 0.95 | 246 | -0.1638 | 0.2303 | 0.0302 |
| 0.95 | 258 | -0.1809 | 0.1898 | 0.0302 |
| 0.15 | 66 | 0.0819 | 0.2427 | 0.03 |
| 0.15 | 294 | -0.2981 | 0.2456 | 0.0306 |
| 0.25 | 66 | -0.1946 | 0.2096 | 0.0303 |
| 0.25 | 78 | -0.28 | 0.233 | 0.0305 |
| 0.25 | 294 | 0.3864 | 0.2012 | 0.031 |
| 0.35 | 66 | -0.2009 | 0.2397 | 0.0303 |
| 0.35 | 78 | -0.2643 | 0.194 | 0.0305 |
| 0.35 | 270 | -0.0911 | 0.235 | 0.0301 |
| 0.35 | 282 | -0.1191 | 0.1943 | 0.0301 |
| 0.35 | 294 | 0.1637 | 0.2239 | 0.0302 |
| 0.45 | 66 | -0.154 | 0.2513 | 0.0302 |
| 0.45 | 78 | -0.1992 | 0.2445 | 0.0303 |
| 0.45 | 102 | -0.365 | 0.2198 | 0.0309 |
| 0.45 | 270 | -0.0891 | 0.2066 | 0.0301 |
| 0.45 | 282 | -0.3082 | 0.2095 | 0.0306 |
| 0.45 | 294 | 0.1953 | 0.2082 | 0.0303 |
| 0.55 | 66 | 0.1836 | 0.2491 | 0.0302 |
| 0.55 | 78 | -0.2412 | 0.2218 | 0.0304 |
| 0.55 | 102 | 0.1026 | 0.2496 | 0.0301 |
| 0.55 | 114 | 0.357 | 0.233 | 0.0308 |
| 0.55 | 126 | -0.0356 | 0.1969 | 0.03 |
| 0.55 | 246 | -0.1547 | 0.2262 | 0.0302 |
| 0.55 | 270 | -0.2698 | 0.2499 | 0.0305 |
| 0.55 | 282 | 0.0455 | 0.2074 | 0.03 |
| 0.55 | 306 | 0.3997 | 0.2413 | 0.031 |
| 0.65 | 66 | -0.3466 | 0.2389 | 0.0308 |
| 0.65 | 102 | -0.0536 | 0.2077 | 0.03 |
| 0.65 | 114 | 0.3296 | 0.1809 | 0.0307 |
| 0.65 | 126 | -0.0399 | 0.2161 | 0.03 |
| 0.65 | 138 | -0.0699 | 0.1872 | 0.03 |
| 0.65 | 210 | 0.1972 | 0.2287 | 0.0303 |
| 0.65 | 222 | -0.2998 | 0.2207 | 0.0306 |
| 0.65 | 234 | 0.3041 | 0.1953 | 0.0306 |
| 0.65 | 246 | 0.0653 | 0.1833 | 0.03 |
| 0.65 | 270 | -0.0954 | 0.2212 | 0.0301 |
| 0.65 | 294 | -0.2644 | 0.2334 | 0.0305 |
| 0.75 | 102 | 0.3906 | 0.1806 | 0.031 |
| 0.75 | 114 | 0.0283 | 0.1723 | 0.03 |
| 0.75 | 126 | -0.0232 | 0.1912 | 0.03 |
| 0.75 | 138 | -0.2104 | 0.2175 | 0.0303 |
| 0.75 | 150 | 0.2492 | 0.2221 | 0.0304 |
| 0.75 | 210 | 0.5165 | 0.1854 | 0.0317 |
| 0.75 | 222 | -0.2148 | 0.1725 | 0.0303 |
| 0.75 | 234 | 0.1184 | 0.1905 | 0.0301 |
| 0.75 | 246 | -0.3155 | 0.2042 | 0.0307 |
| 0.75 | 258 | 0.0217 | 0.2368 | 0.03 |
| 0.75 | 282 | 0.0866 | 0.2393 | 0.03 |
| 0.75 | 294 | 0.0907 | 0.2142 | 0.0301 |
| 0.85 | 78 | 0.4584 | 0.2259 | 0.0314 |
| 0.85 | 90 | 0.0653 | 0.2011 | 0.03 |
| 0.85 | 102 | -0.0667 | 0.2123 | 0.03 |
| 0.85 | 114 | -0.2227 | 0.2327 | 0.0303 |
| 0.85 | 126 | 0.3307 | 0.1896 | 0.0307 |
| 0.85 | 138 | 0.1458 | 0.2284 | 0.0301 |
| 0.85 | 198 | 0.538 | 0.1995 | 0.0319 |
| 0.85 | 210 | 0.0633 | 0.2178 | 0.03 |
| 0.85 | 222 | 0.4434 | 0.208 | 0.0313 |
| 0.85 | 234 | -0.1738 | 0.1761 | 0.0302 |
| 0.85 | 246 | -0.2697 | 0.2219 | 0.0305 |
| 0.85 | 258 | 0.1364 | 0.2137 | 0.0301 |
| 0.85 | 270 | 0.2986 | 0.2251 | 0.0306 |
| 0.95 | 102 | -0.6026 | 0.2108 | 0.0323 |
| 0.95 | 222 | -0.0245 | 0.2323 | 0.03 |
| 0.95 | 234 | -0.1555 | 0.2021 | 0.0302 |
| 0.95 | 246 | -0.2883 | 0.1991 | 0.0305 |
| 0.95 | 258 | -0.0159 | 0.2438 | 0.03 |