Measurement E151M3581
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0786 | |
| Q2: | 0.1205 GeV2 | |
| W: | 1715.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.8816 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 270.0 | 0.821 | 0.1465 |
| 0.35 | 66.0 | -0.2016 | 0.2191 |
| 0.35 | 78.0 | -0.0567 | 0.2363 |
| 0.35 | 270.0 | -0.2026 | 0.2456 |
| 0.35 | 282.0 | 0.055 | 0.1911 |
| 0.45 | 102.0 | -0.3238 | 0.2332 |
| 0.45 | 114.0 | -0.3563 | 0.222 |
| 0.45 | 126.0 | -0.2165 | 0.242 |
| 0.45 | 138.0 | -0.4879 | 0.2303 |
| 0.45 | 222.0 | -0.1045 | 0.2332 |
| 0.45 | 246.0 | 0.2 | 0.2757 |
| 0.45 | 258.0 | 0.5313 | 0.189 |
| 0.45 | 270.0 | -0.0807 | 0.2104 |
| 0.45 | 282.0 | 0.1557 | 0.2245 |
| 0.55 | 54.0 | -0.1702 | 0.2728 |
| 0.55 | 66.0 | -0.1313 | 0.2517 |
| 0.55 | 102.0 | 0.2571 | 0.2114 |
| 0.55 | 114.0 | 0.1749 | 0.1606 |
| 0.55 | 126.0 | -0.0723 | 0.2025 |
| 0.55 | 138.0 | -0.1521 | 0.217 |
| 0.55 | 186.0 | -0.0595 | 0.2797 |
| 0.55 | 198.0 | 0.0406 | 0.2318 |
| 0.55 | 210.0 | -0.0432 | 0.2104 |
| 0.55 | 222.0 | 0.3501 | 0.2047 |
| 0.55 | 246.0 | 0.1527 | 0.2505 |
| 0.55 | 258.0 | 0.1932 | 0.2395 |
| 0.55 | 270.0 | -0.3032 | 0.1787 |
| 0.65 | 42.0 | -0.2583 | 0.2404 |
| 0.65 | 54.0 | 0.1151 | 0.2032 |
| 0.65 | 66.0 | -0.0687 | 0.249 |
| 0.65 | 78.0 | -0.1387 | 0.2698 |
| 0.65 | 102.0 | -0.2134 | 0.1951 |
| 0.65 | 114.0 | -0.2407 | 0.1745 |
| 0.65 | 126.0 | -0.1645 | 0.16 |
| 0.65 | 138.0 | 0.3217 | 0.1807 |
| 0.65 | 150.0 | 0.1202 | 0.2655 |
| 0.65 | 162.0 | -0.2554 | 0.2634 |
| 0.65 | 186.0 | -0.1397 | 0.2238 |
| 0.65 | 198.0 | -0.1527 | 0.1889 |
| 0.65 | 210.0 | 0.0747 | 0.1869 |
| 0.65 | 222.0 | 0.1098 | 0.2041 |
| 0.65 | 234.0 | -0.3884 | 0.1897 |
| 0.65 | 246.0 | 0.3342 | 0.2687 |
| 0.65 | 258.0 | 0.1523 | 0.2302 |
| 0.65 | 270.0 | 0.264 | 0.2529 |
| 0.65 | 282.0 | -0.028 | 0.172 |
| 0.65 | 294.0 | -0.2078 | 0.1936 |
| 0.75 | 78.0 | -0.2809 | 0.2409 |
| 0.75 | 90.0 | 0.0739 | 0.176 |
| 0.75 | 102.0 | 0.0455 | 0.1803 |
| 0.75 | 114.0 | -0.2632 | 0.2022 |
| 0.75 | 126.0 | -0.0898 | 0.2335 |
| 0.75 | 138.0 | 0.1314 | 0.209 |
| 0.75 | 150.0 | 0.0321 | 0.2544 |
| 0.75 | 162.0 | -0.3758 | 0.2565 |
| 0.75 | 174.0 | -0.1077 | 0.2487 |
| 0.75 | 186.0 | -0.1148 | 0.1902 |
| 0.75 | 198.0 | -0.4244 | 0.1647 |
| 0.75 | 210.0 | -0.3961 | 0.1547 |
| 0.75 | 222.0 | -0.0753 | 0.1524 |
| 0.75 | 234.0 | -0.2138 | 0.1754 |
| 0.75 | 246.0 | 0.3079 | 0.2338 |
| 0.75 | 258.0 | -0.3887 | 0.3139 |
| 0.75 | 270.0 | -0.2088 | 0.1724 |
| 0.75 | 282.0 | -0.0561 | 0.1652 |
| 0.75 | 294.0 | -0.09 | 0.2094 |
| 0.75 | 306.0 | 0.1266 | 0.2835 |
| 0.85 | 78.0 | 0.2008 | 0.2371 |
| 0.85 | 90.0 | -0.0209 | 0.1412 |
| 0.85 | 102.0 | 0.2798 | 0.1383 |
| 0.85 | 114.0 | 0.1547 | 0.1516 |
| 0.85 | 126.0 | -0.4245 | 0.2149 |
| 0.85 | 174.0 | -0.3448 | 0.1929 |
| 0.85 | 186.0 | 0.2328 | 0.1714 |
| 0.85 | 198.0 | -0.0905 | 0.1452 |
| 0.85 | 210.0 | -0.1588 | 0.1392 |
| 0.85 | 222.0 | 0.2011 | 0.1396 |
| 0.85 | 234.0 | 0.3002 | 0.1395 |
| 0.85 | 246.0 | -0.0641 | 0.1795 |
| 0.85 | 258.0 | 0.2269 | 0.2185 |
| 0.85 | 270.0 | -0.0181 | 0.2606 |
| 0.85 | 282.0 | 0.0345 | 0.2085 |
| 0.95 | 90.0 | 0.27 | 0.2294 |
| 0.95 | 102.0 | -0.1406 | 0.2157 |
| 0.95 | 114.0 | 0.1677 | 0.2671 |
| 0.95 | 126.0 | -0.2742 | 0.2621 |
| 0.95 | 174.0 | -0.0312 | 0.2276 |
| 0.95 | 186.0 | -0.3153 | 0.2046 |
| 0.95 | 198.0 | -0.1338 | 0.1844 |
| 0.95 | 210.0 | 0.025 | 0.185 |
| 0.95 | 222.0 | -0.1185 | 0.1972 |
| 0.95 | 234.0 | -0.0797 | 0.169 |
| 0.95 | 246.0 | -0.1319 | 0.2324 |
| 0.95 | 258.0 | 0.1207 | 0.2729 |
Experiment comment: