Measurement E151M3557
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1506 | |
| Q2: | 0.205 GeV2 | |
| W: | 1655.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.8887 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 66.0 | -0.3406 | 0.2695 |
| 0.25 | 66.0 | 0.0912 | 0.253 |
| 0.25 | 270.0 | -0.2672 | 0.2675 |
| 0.35 | 270.0 | -0.0117 | 0.2613 |
| 0.35 | 282.0 | 0.2475 | 0.23 |
| 0.45 | 102.0 | 0.016 | 0.2853 |
| 0.45 | 114.0 | -0.2243 | 0.2352 |
| 0.45 | 258.0 | 0.1148 | 0.2612 |
| 0.45 | 270.0 | -0.0123 | 0.2623 |
| 0.45 | 282.0 | -0.4066 | 0.1962 |
| 0.45 | 294.0 | -0.3774 | 0.2376 |
| 0.55 | 42.0 | -0.4049 | 0.2381 |
| 0.55 | 54.0 | 0.0766 | 0.2285 |
| 0.55 | 90.0 | 0.1454 | 0.238 |
| 0.55 | 102.0 | -0.0553 | 0.1972 |
| 0.55 | 114.0 | -0.2063 | 0.1932 |
| 0.55 | 126.0 | -0.3659 | 0.2181 |
| 0.55 | 138.0 | -0.2313 | 0.2395 |
| 0.55 | 222.0 | 0.3985 | 0.2324 |
| 0.55 | 234.0 | -0.3339 | 0.2144 |
| 0.55 | 258.0 | 0.018 | 0.2287 |
| 0.55 | 270.0 | -0.0785 | 0.189 |
| 0.55 | 282.0 | 0.1378 | 0.2377 |
| 0.55 | 294.0 | 0.2366 | 0.2652 |
| 0.65 | 90.0 | 0.2059 | 0.2683 |
| 0.65 | 102.0 | 0.2075 | 0.1666 |
| 0.65 | 114.0 | 0.1757 | 0.1618 |
| 0.65 | 126.0 | -0.2444 | 0.1978 |
| 0.65 | 138.0 | -0.0931 | 0.2431 |
| 0.65 | 198.0 | 0.0321 | 0.2373 |
| 0.65 | 210.0 | -0.0088 | 0.2289 |
| 0.65 | 222.0 | -0.2397 | 0.2048 |
| 0.65 | 234.0 | 0.3564 | 0.2404 |
| 0.65 | 246.0 | 0.2603 | 0.2202 |
| 0.65 | 282.0 | 0.1301 | 0.2413 |
| 0.65 | 294.0 | -0.0823 | 0.1982 |
| 0.65 | 306.0 | -0.0679 | 0.2249 |
| 0.75 | 78.0 | 0.145 | 0.2121 |
| 0.75 | 102.0 | 0.5832 | 0.1913 |
| 0.75 | 114.0 | -0.057 | 0.1638 |
| 0.75 | 126.0 | 0.0673 | 0.1996 |
| 0.75 | 138.0 | -0.2704 | 0.2171 |
| 0.75 | 186.0 | -0.2141 | 0.2391 |
| 0.75 | 198.0 | 0.2204 | 0.1962 |
| 0.75 | 210.0 | -0.0398 | 0.177 |
| 0.75 | 222.0 | -0.1155 | 0.179 |
| 0.75 | 234.0 | -0.2352 | 0.1802 |
| 0.75 | 246.0 | -0.2434 | 0.1872 |
| 0.75 | 282.0 | 0.2182 | 0.2014 |
| 0.75 | 294.0 | 0.1401 | 0.2076 |
| 0.75 | 306.0 | 0.0562 | 0.2515 |
| 0.85 | 66.0 | 0.4063 | 0.2039 |
| 0.85 | 78.0 | 0.0127 | 0.1542 |
| 0.85 | 90.0 | -0.0582 | 0.1559 |
| 0.85 | 102.0 | 0.2122 | 0.1837 |
| 0.85 | 114.0 | 0.0099 | 0.2015 |
| 0.85 | 174.0 | -0.0874 | 0.2533 |
| 0.85 | 186.0 | -0.2788 | 0.2004 |
| 0.85 | 198.0 | 0.1665 | 0.1899 |
| 0.85 | 210.0 | -0.1847 | 0.1521 |
| 0.85 | 222.0 | -0.2184 | 0.1543 |
| 0.85 | 234.0 | -0.1092 | 0.1383 |
| 0.85 | 246.0 | 0.0854 | 0.1564 |
| 0.85 | 258.0 | -0.2706 | 0.1931 |
| 0.85 | 270.0 | -0.2293 | 0.2273 |
| 0.85 | 282.0 | 0.0251 | 0.2678 |
| 0.95 | 90.0 | 0.1797 | 0.2059 |
| 0.95 | 102.0 | 0.4039 | 0.2657 |
| 0.95 | 186.0 | -0.5656 | 0.2365 |
| 0.95 | 198.0 | 0.3254 | 0.2013 |
| 0.95 | 210.0 | 0.061 | 0.2254 |
| 0.95 | 222.0 | -0.1248 | 0.2071 |
| 0.95 | 234.0 | 0.1535 | 0.1702 |
| 0.95 | 246.0 | 0.2042 | 0.166 |
| 0.95 | 258.0 | -0.0318 | 0.1649 |
| 0.95 | 270.0 | 0.0922 | 0.1763 |
| 0.95 | 282.0 | 0.2147 | 0.2006 |
Experiment comment: