Measurement E151M3507
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.2365 | |
| Q2: | 0.205 GeV2 | |
| W: | 1535.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.9255 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.05 | 54.0 | 0.0763 | 0.2643 |
| 0.05 | 66.0 | -0.1999 | 0.2846 |
| 0.15 | 66.0 | 0.4405 | 0.1976 |
| 0.15 | 282.0 | 0.4297 | 0.2299 |
| 0.15 | 294.0 | -0.0723 | 0.2074 |
| 0.25 | 66.0 | -0.2714 | 0.167 |
| 0.25 | 78.0 | 0.1085 | 0.2299 |
| 0.25 | 270.0 | 0.1358 | 0.2663 |
| 0.25 | 282.0 | -0.4755 | 0.1654 |
| 0.25 | 294.0 | -0.1028 | 0.2109 |
| 0.25 | 306.0 | 0.4547 | 0.251 |
| 0.35 | 66.0 | -0.0949 | 0.1838 |
| 0.35 | 78.0 | 0.1059 | 0.2204 |
| 0.35 | 270.0 | -0.0376 | 0.198 |
| 0.35 | 282.0 | 0.139 | 0.1552 |
| 0.35 | 294.0 | 0.176 | 0.1651 |
| 0.35 | 306.0 | 0.2208 | 0.2707 |
| 0.45 | 54.0 | 0.3916 | 0.2433 |
| 0.45 | 66.0 | -0.2362 | 0.2412 |
| 0.45 | 78.0 | 0.0289 | 0.2767 |
| 0.45 | 90.0 | 0.3711 | 0.2088 |
| 0.45 | 102.0 | 0.4087 | 0.1881 |
| 0.45 | 114.0 | 0.3067 | 0.2285 |
| 0.45 | 270.0 | 0.0796 | 0.1822 |
| 0.45 | 282.0 | -0.1121 | 0.1757 |
| 0.45 | 294.0 | 0.1938 | 0.1917 |
| 0.55 | 54.0 | -0.0071 | 0.2252 |
| 0.55 | 78.0 | 0.1067 | 0.2508 |
| 0.55 | 90.0 | 0.0055 | 0.2124 |
| 0.55 | 102.0 | 0.0765 | 0.1541 |
| 0.55 | 114.0 | -0.096 | 0.167 |
| 0.55 | 126.0 | 0.1189 | 0.2324 |
| 0.55 | 234.0 | 0.1412 | 0.2514 |
| 0.55 | 246.0 | -0.2146 | 0.2223 |
| 0.55 | 258.0 | -0.4538 | 0.2144 |
| 0.55 | 270.0 | -0.1041 | 0.182 |
| 0.55 | 282.0 | -0.1202 | 0.1811 |
| 0.55 | 294.0 | -0.7409 | 0.1794 |
| 0.55 | 306.0 | -0.0569 | 0.2064 |
| 0.65 | 78.0 | 0.4587 | 0.2337 |
| 0.65 | 90.0 | 0.1148 | 0.1339 |
| 0.65 | 102.0 | 0.0894 | 0.1323 |
| 0.65 | 114.0 | -0.2453 | 0.1499 |
| 0.65 | 126.0 | -0.2812 | 0.1499 |
| 0.65 | 138.0 | -0.4106 | 0.1912 |
| 0.65 | 210.0 | -0.1993 | 0.2209 |
| 0.65 | 222.0 | -0.148 | 0.1883 |
| 0.65 | 234.0 | -0.0784 | 0.1659 |
| 0.65 | 246.0 | 0.1834 | 0.1534 |
| 0.65 | 258.0 | -0.0461 | 0.1929 |
| 0.65 | 270.0 | -0.1154 | 0.2218 |
| 0.65 | 294.0 | 0.1046 | 0.1646 |
| 0.65 | 306.0 | 0.1792 | 0.1717 |
| 0.75 | 66.0 | 0.1696 | 0.1977 |
| 0.75 | 78.0 | -0.0231 | 0.2018 |
| 0.75 | 90.0 | -0.1365 | 0.1585 |
| 0.75 | 102.0 | 0.2004 | 0.125 |
| 0.75 | 114.0 | 0.0371 | 0.1299 |
| 0.75 | 126.0 | 0.0014 | 0.14 |
| 0.75 | 138.0 | 0.1499 | 0.1995 |
| 0.75 | 150.0 | 0.0751 | 0.2666 |
| 0.75 | 174.0 | -0.316 | 0.258 |
| 0.75 | 186.0 | -0.1839 | 0.2383 |
| 0.75 | 198.0 | 0.0602 | 0.1705 |
| 0.75 | 210.0 | -0.1896 | 0.1617 |
| 0.75 | 222.0 | 0.2215 | 0.1534 |
| 0.75 | 234.0 | 0.1026 | 0.1441 |
| 0.75 | 246.0 | -0.0665 | 0.1492 |
| 0.75 | 258.0 | -0.145 | 0.1743 |
| 0.75 | 270.0 | 0.0843 | 0.2239 |
| 0.75 | 294.0 | 0.1522 | 0.2093 |
| 0.75 | 306.0 | -0.0681 | 0.2689 |
| 0.85 | 66.0 | 0.1706 | 0.1487 |
| 0.85 | 78.0 | 0.076 | 0.1353 |
| 0.85 | 90.0 | -0.0885 | 0.1907 |
| 0.85 | 102.0 | 0.1202 | 0.1892 |
| 0.85 | 114.0 | -0.0523 | 0.1464 |
| 0.85 | 126.0 | -0.0194 | 0.1684 |
| 0.85 | 138.0 | -0.0138 | 0.1899 |
| 0.85 | 162.0 | 0.0016 | 0.2688 |
| 0.85 | 174.0 | 0.031 | 0.2828 |
| 0.85 | 186.0 | -0.2223 | 0.1852 |
| 0.85 | 198.0 | 0.0838 | 0.1673 |
| 0.85 | 210.0 | -0.0072 | 0.1639 |
| 0.85 | 222.0 | -0.095 | 0.1405 |
| 0.85 | 234.0 | -0.231 | 0.124 |
| 0.85 | 246.0 | 0.0526 | 0.1157 |
| 0.85 | 258.0 | -0.4096 | 0.1186 |
| 0.85 | 270.0 | -0.0559 | 0.1427 |
| 0.85 | 282.0 | -0.1488 | 0.194 |
| 0.85 | 294.0 | -0.1988 | 0.1946 |
| 0.95 | 66.0 | 0.1614 | 0.2193 |
| 0.95 | 78.0 | -0.218 | 0.1617 |
| 0.95 | 90.0 | 0.1679 | 0.2162 |
| 0.95 | 150.0 | 0.0006 | 0.2624 |
| 0.95 | 162.0 | 0.4278 | 0.241 |
| 0.95 | 174.0 | 0.0337 | 0.2187 |
| 0.95 | 186.0 | 0.1078 | 0.1933 |
| 0.95 | 198.0 | -0.1918 | 0.2127 |
| 0.95 | 210.0 | 0.0439 | 0.1913 |
| 0.95 | 222.0 | -0.0818 | 0.1441 |
| 0.95 | 234.0 | -0.0182 | 0.1448 |
| 0.95 | 246.0 | -0.0786 | 0.1466 |
| 0.95 | 258.0 | -0.2243 | 0.1277 |
| 0.95 | 270.0 | -0.2754 | 0.1299 |
| 0.95 | 282.0 | -0.0129 | 0.1408 |
| 0.95 | 294.0 | 0.0322 | 0.1503 |
| 0.95 | 306.0 | 0.0012 | 0.1866 |
Experiment comment: