Measurement E151M3023
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0858 | |
| Q2: | 0.0415 GeV2 | |
| W: | 1445.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.9154 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 30.0 | -0.5279 | 0.2365 |
| 0.15 | 42.0 | 0.0433 | 0.2702 |
| 0.25 | 30.0 | 0.0054 | 0.2524 |
| 0.25 | 42.0 | -0.195 | 0.2671 |
| 0.25 | 54.0 | -0.0421 | 0.2433 |
| 0.25 | 66.0 | 0.0936 | 0.2089 |
| 0.25 | 78.0 | -0.0898 | 0.2115 |
| 0.25 | 282.0 | 0.1589 | 0.2174 |
| 0.25 | 294.0 | 0.0455 | 0.1761 |
| 0.25 | 306.0 | 0.1139 | 0.2374 |
| 0.25 | 318.0 | -0.199 | 0.2356 |
| 0.25 | 330.0 | 0.1109 | 0.2547 |
| 0.35 | 30.0 | 0.2661 | 0.2075 |
| 0.35 | 54.0 | -0.4947 | 0.1891 |
| 0.35 | 66.0 | 0.0797 | 0.1378 |
| 0.35 | 78.0 | -0.0909 | 0.141 |
| 0.35 | 90.0 | 0.0617 | 0.183 |
| 0.35 | 270.0 | 0.1331 | 0.2006 |
| 0.35 | 282.0 | 0.0899 | 0.1611 |
| 0.35 | 294.0 | -0.0994 | 0.1418 |
| 0.35 | 306.0 | 0.3011 | 0.2262 |
| 0.35 | 330.0 | -0.1544 | 0.2424 |
| 0.45 | 18.0 | -0.5448 | 0.2077 |
| 0.45 | 30.0 | 0.213 | 0.2309 |
| 0.45 | 42.0 | 0.0534 | 0.2498 |
| 0.45 | 66.0 | 0.3891 | 0.1597 |
| 0.45 | 78.0 | -0.1432 | 0.1276 |
| 0.45 | 90.0 | -0.0498 | 0.1465 |
| 0.45 | 102.0 | -0.2503 | 0.1966 |
| 0.45 | 114.0 | -0.3126 | 0.2516 |
| 0.45 | 258.0 | 0.1829 | 0.2002 |
| 0.45 | 270.0 | -0.0663 | 0.1365 |
| 0.45 | 282.0 | 0.0875 | 0.1212 |
| 0.45 | 294.0 | 0.3924 | 0.1322 |
| 0.45 | 306.0 | -0.1543 | 0.2192 |
| 0.45 | 318.0 | 0.1037 | 0.2681 |
| 0.45 | 330.0 | -0.2945 | 0.2364 |
| 0.55 | 66.0 | -0.1575 | 0.1852 |
| 0.55 | 78.0 | -0.0829 | 0.1315 |
| 0.55 | 90.0 | 0.1028 | 0.1423 |
| 0.55 | 102.0 | -0.1295 | 0.1668 |
| 0.55 | 114.0 | 0.1097 | 0.1981 |
| 0.55 | 126.0 | 0.108 | 0.164 |
| 0.55 | 138.0 | -0.2174 | 0.1999 |
| 0.55 | 150.0 | -0.2003 | 0.2273 |
| 0.55 | 198.0 | -0.2575 | 0.2607 |
| 0.55 | 210.0 | 0.0344 | 0.2476 |
| 0.55 | 222.0 | -0.0752 | 0.2167 |
| 0.55 | 234.0 | 0.0891 | 0.1945 |
| 0.55 | 246.0 | -0.0036 | 0.2113 |
| 0.55 | 258.0 | 0.2561 | 0.1778 |
| 0.55 | 270.0 | 0.1047 | 0.133 |
| 0.55 | 282.0 | 0.0321 | 0.1345 |
| 0.55 | 294.0 | 0.135 | 0.1516 |
| 0.65 | 66.0 | -0.0231 | 0.1795 |
| 0.65 | 78.0 | -0.1509 | 0.1905 |
| 0.65 | 90.0 | 0.1244 | 0.1993 |
| 0.65 | 102.0 | 0.1849 | 0.1684 |
| 0.65 | 114.0 | -0.1632 | 0.1496 |
| 0.65 | 126.0 | -0.0254 | 0.149 |
| 0.65 | 138.0 | 0.2462 | 0.1593 |
| 0.65 | 150.0 | 0.0331 | 0.2155 |
| 0.65 | 162.0 | 0.0909 | 0.2547 |
| 0.65 | 198.0 | 0.3901 | 0.2159 |
| 0.65 | 210.0 | 0.1998 | 0.1967 |
| 0.65 | 222.0 | 0.193 | 0.1707 |
| 0.65 | 234.0 | -0.1806 | 0.1289 |
| 0.65 | 246.0 | 0.0435 | 0.1648 |
| 0.65 | 258.0 | 0.0299 | 0.1609 |
| 0.65 | 270.0 | -0.1721 | 0.1442 |
| 0.65 | 282.0 | -0.1806 | 0.177 |
| 0.65 | 294.0 | -0.3899 | 0.1903 |
| 0.65 | 306.0 | 0.0493 | 0.2409 |
| 0.75 | 66.0 | -0.1484 | 0.2237 |
| 0.75 | 78.0 | -0.068 | 0.1834 |
| 0.75 | 102.0 | -0.1756 | 0.1867 |
| 0.75 | 114.0 | -0.1358 | 0.1453 |
| 0.75 | 126.0 | -0.09 | 0.1381 |
| 0.75 | 138.0 | 0.1025 | 0.1473 |
| 0.75 | 150.0 | 0.0511 | 0.1747 |
| 0.75 | 162.0 | 0.3211 | 0.2617 |
| 0.75 | 186.0 | 0.2799 | 0.2507 |
| 0.75 | 198.0 | 0.024 | 0.2271 |
| 0.75 | 210.0 | 0.1556 | 0.1602 |
| 0.75 | 222.0 | -0.0501 | 0.1319 |
| 0.75 | 234.0 | -0.1654 | 0.1348 |
| 0.75 | 246.0 | 0.0506 | 0.1277 |
| 0.75 | 258.0 | 0.1431 | 0.1864 |
| 0.75 | 270.0 | -0.1158 | 0.2301 |
| 0.75 | 282.0 | -0.1227 | 0.1826 |
| 0.75 | 294.0 | 0.0568 | 0.2013 |
| 0.85 | 90.0 | -0.1933 | 0.2327 |
| 0.85 | 102.0 | -0.1044 | 0.2066 |
| 0.85 | 114.0 | 0.2579 | 0.1995 |
| 0.85 | 126.0 | 0.1957 | 0.1907 |
| 0.85 | 138.0 | -0.0944 | 0.2031 |
| 0.85 | 150.0 | -0.1086 | 0.2824 |
| 0.85 | 186.0 | -0.3029 | 0.2716 |
| 0.85 | 198.0 | -0.2725 | 0.1994 |
| 0.85 | 210.0 | -0.2205 | 0.1589 |
| 0.85 | 222.0 | -0.0356 | 0.1592 |
| 0.85 | 234.0 | -0.0009 | 0.147 |
| 0.85 | 246.0 | -0.0641 | 0.1678 |
| 0.85 | 258.0 | 0.0351 | 0.1606 |
| 0.85 | 270.0 | -0.0714 | 0.209 |
| 0.95 | 210.0 | -0.37 | 0.2504 |
| 0.95 | 222.0 | 0.2311 | 0.217 |
| 0.95 | 234.0 | -0.1578 | 0.2077 |
| 0.95 | 246.0 | -0.31 | 0.2271 |
Experiment comment: