Measurement E151M3031
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.2773 | |
| Q2: | 0.1715 GeV2 | |
| W: | 1445.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.8733 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 294.0 | -0.042 | 0.2804 |
| 0.15 | 306.0 | 0.1892 | 0.2639 |
| 0.25 | 66.0 | 0.1112 | 0.2322 |
| 0.25 | 78.0 | -0.1483 | 0.258 |
| 0.25 | 294.0 | -0.1167 | 0.2576 |
| 0.35 | 66.0 | -0.1302 | 0.2355 |
| 0.35 | 78.0 | -0.2137 | 0.2278 |
| 0.35 | 282.0 | 0.2653 | 0.2324 |
| 0.35 | 294.0 | 0.044 | 0.2383 |
| 0.45 | 66.0 | 0.1086 | 0.2662 |
| 0.45 | 78.0 | 0.1424 | 0.1978 |
| 0.45 | 90.0 | -0.0322 | 0.2928 |
| 0.45 | 270.0 | -0.2585 | 0.2414 |
| 0.45 | 282.0 | -0.2686 | 0.2244 |
| 0.45 | 294.0 | -0.0335 | 0.2097 |
| 0.55 | 78.0 | -0.0689 | 0.2639 |
| 0.55 | 102.0 | -0.0402 | 0.2708 |
| 0.55 | 114.0 | 0.2801 | 0.2438 |
| 0.55 | 282.0 | 0.1083 | 0.2742 |
| 0.65 | 102.0 | 0.2095 | 0.1993 |
| 0.65 | 114.0 | -0.0978 | 0.1855 |
| 0.65 | 126.0 | -0.1299 | 0.1911 |
| 0.65 | 246.0 | -0.0518 | 0.2307 |
| 0.65 | 258.0 | -0.2927 | 0.2643 |
| 0.75 | 90.0 | 0.4506 | 0.1918 |
| 0.75 | 102.0 | 0.5588 | 0.161 |
| 0.75 | 114.0 | 0.3039 | 0.1755 |
| 0.75 | 126.0 | -0.1699 | 0.18 |
| 0.75 | 138.0 | 0.3033 | 0.2459 |
| 0.75 | 222.0 | -0.4548 | 0.2262 |
| 0.75 | 234.0 | 0.0032 | 0.1948 |
| 0.75 | 246.0 | -0.2032 | 0.2169 |
| 0.75 | 258.0 | 0.1732 | 0.1842 |
| 0.75 | 270.0 | -0.0676 | 0.2604 |
| 0.85 | 78.0 | 0.4097 | 0.2059 |
| 0.85 | 90.0 | 0.011 | 0.2612 |
| 0.85 | 102.0 | -0.0044 | 0.2571 |
| 0.85 | 114.0 | 0.1972 | 0.202 |
| 0.85 | 126.0 | 0.4812 | 0.1884 |
| 0.85 | 138.0 | 0.2012 | 0.2225 |
| 0.85 | 150.0 | 0.0004 | 0.2733 |
| 0.85 | 210.0 | 0.1523 | 0.2609 |
| 0.85 | 222.0 | -0.2285 | 0.2228 |
| 0.85 | 234.0 | -0.1155 | 0.2142 |
| 0.85 | 246.0 | 0.1349 | 0.1991 |
| 0.85 | 258.0 | -0.0925 | 0.1965 |
| 0.85 | 270.0 | -0.4055 | 0.1732 |
| 0.85 | 282.0 | 0.4403 | 0.3029 |
| 0.95 | 90.0 | -0.0481 | 0.2168 |
| 0.95 | 210.0 | 0.1013 | 0.2596 |
| 0.95 | 222.0 | -0.2489 | 0.229 |
| 0.95 | 234.0 | -0.2224 | 0.2306 |
| 0.95 | 246.0 | 0.0109 | 0.2293 |
| 0.95 | 258.0 | 0.0196 | 0.1826 |
| 0.95 | 270.0 | -0.3858 | 0.1722 |
| 0.95 | 282.0 | -0.2786 | 0.1996 |
Experiment comment: