Measurement E151M2947
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.2342 | |
| Q2: | 0.0496 GeV2 | |
| W: | 1295.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.9601 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 294.0 | -0.5215 | 0.2349 |
| 0.15 | 306.0 | 0.2009 | 0.1881 |
| 0.15 | 318.0 | -0.0618 | 0.2494 |
| 0.25 | 66.0 | -0.0928 | 0.2169 |
| 0.25 | 78.0 | 0.3973 | 0.243 |
| 0.25 | 294.0 | 0.0185 | 0.185 |
| 0.25 | 306.0 | -0.2798 | 0.1434 |
| 0.25 | 318.0 | 0.2584 | 0.2394 |
| 0.35 | 66.0 | 0.035 | 0.1551 |
| 0.35 | 78.0 | -0.1368 | 0.1377 |
| 0.35 | 90.0 | -0.0291 | 0.2392 |
| 0.35 | 282.0 | -0.0592 | 0.1923 |
| 0.35 | 294.0 | 0.086 | 0.1586 |
| 0.35 | 306.0 | -0.0176 | 0.1589 |
| 0.45 | 66.0 | 0.2006 | 0.1471 |
| 0.45 | 78.0 | -0.0197 | 0.1172 |
| 0.45 | 90.0 | -0.1605 | 0.1676 |
| 0.45 | 270.0 | 0.5712 | 0.2031 |
| 0.45 | 282.0 | 0.0727 | 0.164 |
| 0.45 | 294.0 | -0.1491 | 0.1552 |
| 0.45 | 306.0 | 0.0739 | 0.2005 |
| 0.55 | 66.0 | 0.2325 | 0.1977 |
| 0.55 | 78.0 | 0.1455 | 0.1167 |
| 0.55 | 90.0 | -0.1119 | 0.1663 |
| 0.55 | 102.0 | 0.4309 | 0.225 |
| 0.55 | 246.0 | 0.1091 | 0.2425 |
| 0.55 | 258.0 | 0.0886 | 0.2034 |
| 0.55 | 270.0 | 0.5117 | 0.1794 |
| 0.55 | 282.0 | -0.0881 | 0.171 |
| 0.55 | 294.0 | -0.0299 | 0.1792 |
| 0.65 | 78.0 | -0.0631 | 0.1625 |
| 0.65 | 90.0 | -0.0376 | 0.1679 |
| 0.65 | 102.0 | 0.2113 | 0.2032 |
| 0.65 | 114.0 | 0.1374 | 0.2007 |
| 0.65 | 126.0 | 0.112 | 0.2063 |
| 0.65 | 138.0 | -0.3036 | 0.252 |
| 0.65 | 234.0 | -0.1128 | 0.2039 |
| 0.65 | 246.0 | -0.0105 | 0.1589 |
| 0.65 | 258.0 | 0.0693 | 0.1455 |
| 0.65 | 270.0 | -0.106 | 0.1519 |
| 0.65 | 282.0 | -0.4099 | 0.1919 |
| 0.75 | 90.0 | -0.1606 | 0.2436 |
| 0.75 | 102.0 | 0.1192 | 0.1722 |
| 0.75 | 114.0 | 0.1365 | 0.1458 |
| 0.75 | 126.0 | 0.1328 | 0.1342 |
| 0.75 | 138.0 | 0.0236 | 0.1461 |
| 0.75 | 150.0 | -0.1698 | 0.1768 |
| 0.75 | 162.0 | -0.3437 | 0.2523 |
| 0.75 | 210.0 | 0.1453 | 0.2469 |
| 0.75 | 222.0 | -0.1587 | 0.1955 |
| 0.75 | 234.0 | 0.4345 | 0.134 |
| 0.75 | 246.0 | -0.0369 | 0.1165 |
| 0.75 | 258.0 | -0.0505 | 0.1202 |
| 0.75 | 270.0 | 0.1767 | 0.1451 |
| 0.85 | 102.0 | 0.065 | 0.1833 |
| 0.85 | 114.0 | -0.1346 | 0.1363 |
| 0.85 | 126.0 | -0.0131 | 0.1293 |
| 0.85 | 138.0 | 0.3091 | 0.1292 |
| 0.85 | 150.0 | 0.2011 | 0.1696 |
| 0.85 | 162.0 | 0.4477 | 0.1681 |
| 0.85 | 174.0 | 0.0845 | 0.1844 |
| 0.85 | 198.0 | -0.0918 | 0.2342 |
| 0.85 | 210.0 | -0.4032 | 0.1911 |
| 0.85 | 222.0 | -0.037 | 0.1725 |
| 0.85 | 234.0 | -0.1944 | 0.1308 |
| 0.85 | 246.0 | 0.0051 | 0.1289 |
| 0.85 | 258.0 | 0.0943 | 0.1273 |
| 0.85 | 270.0 | 0.0367 | 0.1781 |
| 0.95 | 126.0 | 0.2107 | 0.2706 |
| 0.95 | 138.0 | 0.4117 | 0.2082 |
| 0.95 | 150.0 | 0.0325 | 0.1792 |
| 0.95 | 162.0 | -0.1718 | 0.247 |
| 0.95 | 174.0 | 0.0386 | 0.2565 |
| 0.95 | 186.0 | -0.3407 | 0.2468 |
| 0.95 | 210.0 | 0.2843 | 0.223 |
| 0.95 | 222.0 | 0.1903 | 0.2287 |
| 0.95 | 234.0 | -0.038 | 0.2506 |
| 0.95 | 246.0 | -0.2704 | 0.216 |
Experiment comment: