Measurement E151M3471
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.342 | |
| Q2: | 0.205 GeV2 | |
| W: | 1445.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.9454 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.05 | 54.0 | 0.1879 | 0.2134 |
| 0.05 | 66.0 | 0.3585 | 0.2337 |
| 0.05 | 294.0 | 0.2107 | 0.2507 |
| 0.05 | 306.0 | 0.1514 | 0.2727 |
| 0.15 | 54.0 | 0.0138 | 0.1868 |
| 0.15 | 66.0 | -0.2426 | 0.1522 |
| 0.15 | 78.0 | -0.2266 | 0.2363 |
| 0.15 | 282.0 | 0.1043 | 0.2488 |
| 0.15 | 294.0 | -0.0775 | 0.1621 |
| 0.15 | 306.0 | 0.097 | 0.2329 |
| 0.25 | 54.0 | -0.1207 | 0.1984 |
| 0.25 | 66.0 | 0.0849 | 0.1676 |
| 0.25 | 78.0 | -0.2612 | 0.1841 |
| 0.25 | 282.0 | -0.0257 | 0.1951 |
| 0.25 | 294.0 | -0.1981 | 0.1628 |
| 0.25 | 306.0 | 0.1933 | 0.2071 |
| 0.35 | 54.0 | 0.2323 | 0.1858 |
| 0.35 | 66.0 | -0.2221 | 0.1692 |
| 0.35 | 78.0 | -0.1174 | 0.2156 |
| 0.35 | 270.0 | -0.3375 | 0.2153 |
| 0.35 | 282.0 | 0.0361 | 0.1571 |
| 0.35 | 294.0 | -0.1891 | 0.1544 |
| 0.35 | 306.0 | -0.0707 | 0.253 |
| 0.45 | 54.0 | -0.5055 | 0.2153 |
| 0.45 | 66.0 | 0.1242 | 0.201 |
| 0.45 | 78.0 | -0.1032 | 0.2196 |
| 0.45 | 90.0 | -0.1847 | 0.2036 |
| 0.45 | 102.0 | -0.4589 | 0.1754 |
| 0.45 | 270.0 | -0.2576 | 0.2261 |
| 0.45 | 282.0 | 0.057 | 0.1684 |
| 0.45 | 294.0 | -0.0041 | 0.1555 |
| 0.45 | 306.0 | -0.1732 | 0.2654 |
| 0.45 | 318.0 | 0.2213 | 0.2732 |
| 0.55 | 54.0 | 0.1238 | 0.2155 |
| 0.55 | 66.0 | 0.2844 | 0.2599 |
| 0.55 | 78.0 | 0.0143 | 0.186 |
| 0.55 | 90.0 | -0.1075 | 0.1539 |
| 0.55 | 102.0 | 0.0452 | 0.1524 |
| 0.55 | 114.0 | 0.1151 | 0.1948 |
| 0.55 | 246.0 | 0.3773 | 0.2512 |
| 0.55 | 258.0 | -0.1349 | 0.2141 |
| 0.55 | 270.0 | 0.2059 | 0.2059 |
| 0.55 | 282.0 | -0.195 | 0.1589 |
| 0.55 | 294.0 | 0.1157 | 0.2034 |
| 0.55 | 306.0 | 0.3351 | 0.1661 |
| 0.65 | 54.0 | 0.59 | 0.1945 |
| 0.65 | 78.0 | 0.0768 | 0.1502 |
| 0.65 | 90.0 | 0.0903 | 0.1163 |
| 0.65 | 102.0 | 0.0469 | 0.1146 |
| 0.65 | 114.0 | 0.0895 | 0.151 |
| 0.65 | 126.0 | 0.1096 | 0.169 |
| 0.65 | 222.0 | -0.3587 | 0.2638 |
| 0.65 | 234.0 | -0.265 | 0.2124 |
| 0.65 | 246.0 | 0.0219 | 0.1556 |
| 0.65 | 258.0 | -0.0362 | 0.1535 |
| 0.65 | 270.0 | -0.279 | 0.177 |
| 0.65 | 282.0 | -0.2056 | 0.1876 |
| 0.65 | 294.0 | -0.2458 | 0.2484 |
| 0.65 | 306.0 | 0.2395 | 0.2061 |
| 0.75 | 66.0 | -0.4122 | 0.1605 |
| 0.75 | 78.0 | 0.0493 | 0.1765 |
| 0.75 | 90.0 | 0.0455 | 0.1143 |
| 0.75 | 102.0 | 0.017 | 0.114 |
| 0.75 | 114.0 | 0.0044 | 0.117 |
| 0.75 | 126.0 | -0.2616 | 0.1352 |
| 0.75 | 138.0 | 0.0545 | 0.201 |
| 0.75 | 198.0 | 0.3571 | 0.2428 |
| 0.75 | 210.0 | 0.2121 | 0.1978 |
| 0.75 | 222.0 | 0.0143 | 0.1666 |
| 0.75 | 234.0 | -0.1075 | 0.1579 |
| 0.75 | 246.0 | -0.0133 | 0.1287 |
| 0.75 | 258.0 | -0.0917 | 0.1219 |
| 0.75 | 270.0 | -0.1199 | 0.1384 |
| 0.75 | 282.0 | -0.2258 | 0.1719 |
| 0.75 | 294.0 | -0.2234 | 0.274 |
| 0.85 | 54.0 | 0.2394 | 0.2223 |
| 0.85 | 66.0 | 0.0223 | 0.1303 |
| 0.85 | 78.0 | 0.091 | 0.1955 |
| 0.85 | 90.0 | 0.0844 | 0.125 |
| 0.85 | 102.0 | -0.0611 | 0.1187 |
| 0.85 | 114.0 | 0.0014 | 0.12 |
| 0.85 | 126.0 | -0.0484 | 0.1256 |
| 0.85 | 138.0 | 0.2652 | 0.1693 |
| 0.85 | 150.0 | 0.1105 | 0.231 |
| 0.85 | 162.0 | 0.1898 | 0.2432 |
| 0.85 | 186.0 | -0.2744 | 0.2064 |
| 0.85 | 198.0 | -0.0542 | 0.2207 |
| 0.85 | 210.0 | -0.2129 | 0.1581 |
| 0.85 | 222.0 | 0.0106 | 0.1448 |
| 0.85 | 234.0 | 0.1331 | 0.1268 |
| 0.85 | 246.0 | -0.0662 | 0.114 |
| 0.85 | 258.0 | 0.0603 | 0.106 |
| 0.85 | 270.0 | -0.0246 | 0.1149 |
| 0.85 | 282.0 | 0.2457 | 0.1189 |
| 0.85 | 294.0 | -0.0505 | 0.1468 |
| 0.85 | 306.0 | -0.2364 | 0.2143 |
| 0.95 | 54.0 | 0.1683 | 0.2109 |
| 0.95 | 66.0 | -0.0978 | 0.1709 |
| 0.95 | 78.0 | 0.3068 | 0.2175 |
| 0.95 | 102.0 | -0.0361 | 0.1935 |
| 0.95 | 114.0 | 0.2062 | 0.1696 |
| 0.95 | 126.0 | -0.268 | 0.1959 |
| 0.95 | 138.0 | 0.3266 | 0.2121 |
| 0.95 | 150.0 | 0.174 | 0.2354 |
| 0.95 | 162.0 | -0.4218 | 0.2079 |
| 0.95 | 186.0 | 0.1182 | 0.2414 |
| 0.95 | 198.0 | -0.3315 | 0.2111 |
| 0.95 | 210.0 | -0.1528 | 0.1609 |
| 0.95 | 222.0 | -0.0331 | 0.1536 |
| 0.95 | 234.0 | 0.0558 | 0.1567 |
| 0.95 | 246.0 | -0.0137 | 0.1593 |
| 0.95 | 258.0 | 0.0023 | 0.1425 |
| 0.95 | 270.0 | -0.0516 | 0.1295 |
| 0.95 | 282.0 | 0.1137 | 0.1251 |
| 0.95 | 294.0 | 0.0582 | 0.1236 |
| 0.95 | 306.0 | -0.0891 | 0.1517 |
| 0.95 | 318.0 | -0.2196 | 0.2263 |
Experiment comment: