Measurement E151M2961
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.1663 | |
| Q2: | 0.0415 GeV2 | |
| W: | 1325.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.955 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 306.0 | 0.0331 | 0.2816 |
| 0.25 | 294.0 | -0.1686 | 0.2237 |
| 0.25 | 306.0 | -0.2423 | 0.1901 |
| 0.25 | 318.0 | 0.2278 | 0.2803 |
| 0.35 | 66.0 | 0.1032 | 0.1881 |
| 0.35 | 78.0 | -0.0686 | 0.1808 |
| 0.35 | 90.0 | 0.31 | 0.2686 |
| 0.35 | 282.0 | -0.1236 | 0.2226 |
| 0.35 | 294.0 | -0.1829 | 0.1537 |
| 0.35 | 306.0 | 0.2878 | 0.1687 |
| 0.45 | 66.0 | 0.4052 | 0.1464 |
| 0.45 | 78.0 | 0.1281 | 0.1318 |
| 0.45 | 90.0 | -0.0299 | 0.1759 |
| 0.45 | 282.0 | -0.318 | 0.1717 |
| 0.45 | 294.0 | 0.0049 | 0.1589 |
| 0.45 | 306.0 | -0.1785 | 0.2087 |
| 0.55 | 66.0 | -0.0582 | 0.203 |
| 0.55 | 78.0 | -0.1507 | 0.1318 |
| 0.55 | 90.0 | -0.0632 | 0.1506 |
| 0.55 | 102.0 | 0.2634 | 0.2103 |
| 0.55 | 246.0 | 0.4152 | 0.2078 |
| 0.55 | 258.0 | 0.0542 | 0.2297 |
| 0.55 | 270.0 | -0.1966 | 0.2006 |
| 0.55 | 282.0 | 0.0117 | 0.1795 |
| 0.55 | 294.0 | 0.0645 | 0.2002 |
| 0.65 | 66.0 | -0.0213 | 0.2613 |
| 0.65 | 78.0 | -0.0066 | 0.1595 |
| 0.65 | 90.0 | -0.1181 | 0.2087 |
| 0.65 | 102.0 | -0.014 | 0.2108 |
| 0.65 | 114.0 | -0.3095 | 0.1693 |
| 0.65 | 126.0 | 0.1522 | 0.1902 |
| 0.65 | 138.0 | 0.0984 | 0.2125 |
| 0.65 | 222.0 | -0.0878 | 0.2347 |
| 0.65 | 234.0 | -0.1393 | 0.2026 |
| 0.65 | 246.0 | -0.112 | 0.1581 |
| 0.65 | 258.0 | -0.3335 | 0.1496 |
| 0.65 | 270.0 | 0.2746 | 0.173 |
| 0.65 | 282.0 | 0.2071 | 0.2336 |
| 0.75 | 90.0 | -0.2201 | 0.2418 |
| 0.75 | 102.0 | 0.0705 | 0.1719 |
| 0.75 | 114.0 | 0.0449 | 0.143 |
| 0.75 | 126.0 | 0.1629 | 0.1594 |
| 0.75 | 138.0 | 0.2374 | 0.1497 |
| 0.75 | 150.0 | -0.0016 | 0.191 |
| 0.75 | 162.0 | 0.0641 | 0.2565 |
| 0.75 | 210.0 | -0.1116 | 0.2445 |
| 0.75 | 222.0 | 0.0179 | 0.1634 |
| 0.75 | 234.0 | -0.0613 | 0.1438 |
| 0.75 | 246.0 | -0.2202 | 0.1244 |
| 0.75 | 258.0 | -0.0111 | 0.1602 |
| 0.75 | 270.0 | -0.2624 | 0.162 |
| 0.85 | 114.0 | 0.0461 | 0.1613 |
| 0.85 | 126.0 | 0.1389 | 0.1543 |
| 0.85 | 138.0 | 0.0925 | 0.1366 |
| 0.85 | 150.0 | -0.1062 | 0.186 |
| 0.85 | 162.0 | -0.1236 | 0.1976 |
| 0.85 | 174.0 | 0.4628 | 0.2596 |
| 0.85 | 198.0 | 0.0609 | 0.2611 |
| 0.85 | 210.0 | -0.0391 | 0.1918 |
| 0.85 | 222.0 | -0.0984 | 0.1511 |
| 0.85 | 234.0 | 0.172 | 0.1508 |
| 0.85 | 246.0 | -0.0202 | 0.1305 |
| 0.85 | 258.0 | 0.0585 | 0.1442 |
| 0.85 | 270.0 | 0.2043 | 0.1719 |
| 0.95 | 138.0 | 0.5515 | 0.2078 |
| 0.95 | 198.0 | -0.2116 | 0.2882 |
| 0.95 | 210.0 | -0.2179 | 0.2454 |
| 0.95 | 222.0 | -0.19 | 0.2214 |
| 0.95 | 234.0 | 0.2311 | 0.2032 |
Experiment comment: