Measurement E151M3042
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1387 | |
| Q2: | 0.0844 GeV2 | |
| W: | 1475.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.8878 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.25 | 66.0 | 0.3376 | 0.2043 |
| 0.25 | 78.0 | 0.1441 | 0.198 |
| 0.25 | 282.0 | -0.0052 | 0.2157 |
| 0.25 | 294.0 | -0.0974 | 0.2064 |
| 0.35 | 66.0 | -0.0037 | 0.1882 |
| 0.35 | 78.0 | 0.3748 | 0.1495 |
| 0.35 | 90.0 | 0.4125 | 0.2043 |
| 0.35 | 270.0 | -0.6277 | 0.1767 |
| 0.35 | 282.0 | -0.0642 | 0.1549 |
| 0.35 | 294.0 | 0.0863 | 0.1872 |
| 0.35 | 306.0 | 0.5013 | 0.271 |
| 0.45 | 66.0 | -0.2537 | 0.1908 |
| 0.45 | 78.0 | -0.1284 | 0.1787 |
| 0.45 | 90.0 | -0.0317 | 0.2092 |
| 0.45 | 102.0 | 0.0624 | 0.2833 |
| 0.45 | 114.0 | 0.9208 | 0.1446 |
| 0.45 | 258.0 | -0.0359 | 0.2517 |
| 0.45 | 270.0 | 0.0278 | 0.1986 |
| 0.45 | 282.0 | -0.1506 | 0.1459 |
| 0.45 | 294.0 | 0.2421 | 0.1644 |
| 0.45 | 306.0 | -0.3442 | 0.2406 |
| 0.55 | 66.0 | -0.3116 | 0.2143 |
| 0.55 | 78.0 | 0.097 | 0.1802 |
| 0.55 | 90.0 | -0.2219 | 0.212 |
| 0.55 | 102.0 | 0.4975 | 0.1801 |
| 0.55 | 114.0 | -0.0832 | 0.1964 |
| 0.55 | 126.0 | 0.05 | 0.1733 |
| 0.55 | 138.0 | -0.0642 | 0.2737 |
| 0.55 | 222.0 | -0.0179 | 0.2679 |
| 0.55 | 234.0 | -0.6066 | 0.1936 |
| 0.55 | 246.0 | -0.0252 | 0.2448 |
| 0.55 | 258.0 | 0.3033 | 0.2342 |
| 0.55 | 270.0 | -0.0237 | 0.1714 |
| 0.55 | 282.0 | -0.109 | 0.1747 |
| 0.55 | 294.0 | 0.2919 | 0.2549 |
| 0.65 | 54.0 | 0.2481 | 0.2742 |
| 0.65 | 66.0 | -0.1129 | 0.2354 |
| 0.65 | 78.0 | -0.2507 | 0.257 |
| 0.65 | 90.0 | -0.3549 | 0.2197 |
| 0.65 | 102.0 | -0.1723 | 0.207 |
| 0.65 | 114.0 | -0.0822 | 0.1573 |
| 0.65 | 126.0 | -0.1381 | 0.1552 |
| 0.65 | 138.0 | 0.2122 | 0.1858 |
| 0.65 | 150.0 | -0.3217 | 0.2475 |
| 0.65 | 198.0 | 0.2986 | 0.2475 |
| 0.65 | 210.0 | 0.0448 | 0.2083 |
| 0.65 | 222.0 | -0.0121 | 0.2004 |
| 0.65 | 234.0 | -0.3757 | 0.1823 |
| 0.65 | 246.0 | 0.362 | 0.1929 |
| 0.65 | 258.0 | -0.1306 | 0.2487 |
| 0.65 | 270.0 | -0.2531 | 0.2056 |
| 0.65 | 282.0 | -0.0559 | 0.2499 |
| 0.65 | 294.0 | 0.0923 | 0.1933 |
| 0.65 | 306.0 | -0.134 | 0.2751 |
| 0.75 | 66.0 | -0.2602 | 0.2493 |
| 0.75 | 78.0 | -0.1255 | 0.2655 |
| 0.75 | 90.0 | 0.2345 | 0.2575 |
| 0.75 | 102.0 | 0.0666 | 0.2025 |
| 0.75 | 114.0 | 0.2971 | 0.1407 |
| 0.75 | 126.0 | 0.0892 | 0.1827 |
| 0.75 | 138.0 | 0.077 | 0.1776 |
| 0.75 | 150.0 | -0.4943 | 0.1826 |
| 0.75 | 162.0 | -0.226 | 0.2485 |
| 0.75 | 210.0 | 0.1366 | 0.1823 |
| 0.75 | 222.0 | -0.2215 | 0.1633 |
| 0.75 | 234.0 | 0.1404 | 0.1536 |
| 0.75 | 246.0 | -0.03 | 0.1597 |
| 0.75 | 258.0 | -0.0318 | 0.2245 |
| 0.75 | 282.0 | 0.184 | 0.2347 |
| 0.75 | 294.0 | 0.0366 | 0.1888 |
| 0.85 | 90.0 | 0.0464 | 0.2016 |
| 0.85 | 102.0 | -0.2677 | 0.2254 |
| 0.85 | 114.0 | -0.3756 | 0.1916 |
| 0.85 | 126.0 | 0.155 | 0.2066 |
| 0.85 | 138.0 | 0.1602 | 0.2039 |
| 0.85 | 150.0 | 0.1125 | 0.2632 |
| 0.85 | 198.0 | 0.0741 | 0.2367 |
| 0.85 | 210.0 | -0.0047 | 0.2 |
| 0.85 | 222.0 | 0.2746 | 0.1732 |
| 0.85 | 234.0 | 0.0931 | 0.1884 |
| 0.85 | 246.0 | -0.1901 | 0.1634 |
| 0.85 | 258.0 | -0.3035 | 0.1983 |
| 0.95 | 210.0 | -0.3238 | 0.2614 |
| 0.95 | 222.0 | -0.0733 | 0.2159 |
| 0.95 | 234.0 | -0.002 | 0.1823 |
| 0.95 | 246.0 | 0.3052 | 0.1884 |
| 0.95 | 258.0 | 0.0066 | 0.2079 |
| 0.95 | 270.0 | -0.1382 | 0.2798 |
Experiment comment: