Measurement E151M2821
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.0971 | |
| Q2: | 0.0707 GeV2 | |
| W: | 1475.0 GeV | |
| Ebeam: | 1.3383 GeV | |
| ε: | 0.7269 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.45 | 30.0 | -0.435 | 0.3212 |
| 0.55 | 210.0 | 0.2632 | 0.4228 |
| 0.55 | 222.0 | -0.294 | 0.3205 |
| 0.55 | 234.0 | 0.161 | 0.3037 |
| 0.55 | 246.0 | -0.5794 | 0.2393 |
| 0.55 | 258.0 | 0.1847 | 0.3658 |
| 0.65 | 126.0 | -0.0373 | 0.3401 |
| 0.65 | 138.0 | -0.0875 | 0.3406 |
| 0.65 | 150.0 | -0.2526 | 0.3545 |
| 0.65 | 210.0 | 0.1006 | 0.4054 |
| 0.65 | 222.0 | 0.1594 | 0.3482 |
| 0.65 | 234.0 | -0.5223 | 0.2864 |
| 0.65 | 246.0 | -0.2902 | 0.258 |
| 0.65 | 258.0 | -0.613 | 0.2133 |
| 0.75 | 126.0 | -0.2523 | 0.2897 |
| 0.75 | 138.0 | 0.1699 | 0.2975 |
| 0.75 | 150.0 | 0.349 | 0.3573 |
| 0.75 | 210.0 | -0.3406 | 0.3184 |
| 0.75 | 222.0 | -0.4674 | 0.2298 |
| 0.75 | 234.0 | 0.1187 | 0.2651 |
| 0.75 | 246.0 | 0.2992 | 0.2197 |
| 0.75 | 258.0 | -0.2854 | 0.257 |
| 0.85 | 114.0 | 0.0576 | 0.348 |
| 0.85 | 222.0 | 0.3856 | 0.3012 |
| 0.85 | 234.0 | 0.1643 | 0.2776 |
| 0.85 | 246.0 | -0.2636 | 0.2069 |
| 0.85 | 258.0 | 0.1086 | 0.3481 |
| 0.85 | 270.0 | -0.3538 | 0.3627 |
| 0.95 | 114.0 | -0.1305 | 0.3971 |
| 0.95 | 126.0 | -0.5258 | 0.3243 |
| 0.95 | 234.0 | -0.3879 | 0.286 |
| 0.95 | 246.0 | 0.1186 | 0.3655 |
| 0.95 | 258.0 | 0.0011 | 0.2487 |
| 0.25 | 42.0 | 0.2475 | 0.2637 |
| 0.55 | 126.0 | 0.2085 | 0.2634 |
| 0.55 | 138.0 | -0.1826 | 0.2699 |
| 0.55 | 234.0 | 0.2834 | 0.2493 |
| 0.55 | 246.0 | -0.1963 | 0.2117 |
| 0.55 | 258.0 | 0.1792 | 0.2522 |
| 0.65 | 126.0 | 0.1696 | 0.2517 |
| 0.65 | 138.0 | 0.2897 | 0.1952 |
| 0.65 | 150.0 | 0.3501 | 0.2149 |
| 0.65 | 162.0 | -0.0817 | 0.2682 |
| 0.65 | 222.0 | -0.0549 | 0.2045 |
| 0.65 | 234.0 | -0.2858 | 0.2016 |
| 0.65 | 246.0 | -0.0189 | 0.2015 |
| 0.65 | 258.0 | -0.2165 | 0.2422 |
| 0.75 | 126.0 | 0.0905 | 0.2268 |
| 0.75 | 138.0 | 0.0262 | 0.2025 |
| 0.75 | 150.0 | 0.1052 | 0.2513 |
| 0.75 | 222.0 | 0.1648 | 0.1898 |
| 0.75 | 234.0 | 0.3142 | 0.195 |
| 0.75 | 246.0 | -0.0074 | 0.19 |
| 0.75 | 258.0 | -0.1311 | 0.2266 |
| 0.85 | 126.0 | 0.2026 | 0.2713 |
| 0.85 | 150.0 | 0.1426 | 0.2687 |
| 0.85 | 210.0 | -0.1579 | 0.2759 |
| 0.85 | 222.0 | -0.2558 | 0.2544 |
| 0.85 | 234.0 | 0.1008 | 0.2043 |
| 0.85 | 246.0 | -0.1152 | 0.1936 |
| 0.85 | 258.0 | -0.115 | 0.2041 |
| 0.95 | 114.0 | -0.032 | 0.2674 |
| 0.95 | 234.0 | -0.0292 | 0.2317 |
| 0.95 | 246.0 | -0.3785 | 0.2401 |
| 0.95 | 258.0 | 0.4009 | 0.2727 |
Experiment comment: