Measurement E151M1990
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALL | |
| εL: | 0.3561 | |
| Q2: | 0.101 GeV2 | |
| W: | 1325.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9546 | |
| cos(θπ+) | φ(π+), [deg] | ALL | uncertainty |
|---|---|---|---|
| 0.15 | 66.0 | -0.3211 | 1.4246 |
| 0.15 | 294.0 | -0.0172 | 0.6244 |
| 0.15 | 306.0 | -0.2267 | 0.4423 |
| 0.25 | 66.0 | 0.2289 | 0.4324 |
| 0.25 | 78.0 | -0.7117 | 1.6785 |
| 0.25 | 294.0 | -0.1614 | 0.5159 |
| 0.25 | 306.0 | -0.3058 | 0.4247 |
| 0.35 | 66.0 | 0.1819 | 0.3647 |
| 0.35 | 78.0 | 0.619 | 0.4192 |
| 0.35 | 282.0 | 0.9687 | 0.6176 |
| 0.35 | 294.0 | -0.3007 | 0.4097 |
| 0.45 | 66.0 | -0.1428 | 0.5117 |
| 0.45 | 78.0 | 0.2389 | 0.4702 |
| 0.45 | 282.0 | -1.0555 | 0.5265 |
| 0.45 | 294.0 | -0.043 | 0.46 |
| 0.55 | 66.0 | -0.2598 | 0.4682 |
| 0.55 | 78.0 | 0.305 | 0.5025 |
| 0.55 | 90.0 | -0.2174 | 0.6328 |
| 0.55 | 258.0 | -0.5329 | 0.6444 |
| 0.55 | 270.0 | 1.4132 | 0.5289 |
| 0.55 | 282.0 | 0.2007 | 0.5684 |
| 0.65 | 90.0 | -0.7784 | 0.6149 |
| 0.65 | 114.0 | 0.7187 | 0.6579 |
| 0.65 | 246.0 | -0.8166 | 0.5042 |
| 0.65 | 258.0 | -0.4239 | 0.4927 |
| 0.65 | 270.0 | -0.5837 | 0.4836 |
| 0.65 | 282.0 | -0.9413 | 0.5056 |
| 0.75 | 90.0 | 0.3098 | 0.5807 |
| 0.75 | 102.0 | -0.4117 | 0.4787 |
| 0.75 | 114.0 | 0.1588 | 0.4548 |
| 0.75 | 126.0 | -0.7901 | 0.4912 |
| 0.75 | 222.0 | -0.6115 | 0.745 |
| 0.75 | 234.0 | -0.7328 | 0.5797 |
| 0.75 | 246.0 | -0.6446 | 0.5156 |
| 0.75 | 258.0 | -0.1938 | 0.4209 |
| 0.75 | 270.0 | 0.5666 | 0.4536 |
| 0.75 | 282.0 | 1.0868 | 0.5312 |
| 0.85 | 90.0 | 1.2401 | 0.6729 |
| 0.85 | 102.0 | -0.314 | 0.5074 |
| 0.85 | 114.0 | -0.1444 | 0.4262 |
| 0.85 | 126.0 | 0.0316 | 0.5075 |
| 0.85 | 138.0 | -0.6712 | 0.6029 |
| 0.85 | 150.0 | 0.2756 | 0.6821 |
| 0.85 | 162.0 | -0.0781 | 0.6932 |
| 0.85 | 174.0 | -0.7338 | 0.7982 |
| 0.85 | 222.0 | 0.4974 | 0.5972 |
| 0.85 | 234.0 | 0.9693 | 0.4268 |
| 0.85 | 246.0 | 0.632 | 0.4242 |
| 0.85 | 258.0 | -0.2223 | 0.425 |
| 0.85 | 270.0 | 0.6203 | 0.4161 |
| 0.85 | 282.0 | -0.1045 | 0.5188 |
| 0.95 | 102.0 | 1.3234 | 1.0801 |
| 0.95 | 114.0 | 0.6499 | 0.9044 |
| 0.95 | 126.0 | -1.1172 | 0.9279 |
| 0.95 | 138.0 | -0.0365 | 1.0036 |
| 0.95 | 150.0 | 0.2128 | 1.1809 |
| 0.95 | 162.0 | 1.6261 | 1.2464 |
| 0.95 | 186.0 | 2.0077 | 1.1845 |
| 0.95 | 210.0 | 0.8557 | 1.0572 |
| 0.95 | 222.0 | -0.4448 | 1.0465 |
| 0.95 | 234.0 | 0.6198 | 0.9518 |
| 0.95 | 246.0 | -0.5442 | 1.1455 |
| 0.95 | 258.0 | 1.3699 | 0.8041 |
| 0.95 | 270.0 | -0.2799 | 0.7483 |
| 0.35 | 306.0 | 0.6687 | 1.1638 |
| 0.45 | 66.0 | -1.3917 | 1.0928 |
| 0.45 | 78.0 | 0.8603 | 1.3553 |
| 0.45 | 294.0 | -0.7215 | 1.1614 |
| 0.55 | 66.0 | 1.3219 | 1.2541 |
| 0.55 | 78.0 | -2.3526 | 1.2573 |
| 0.55 | 270.0 | 1.0835 | 1.2563 |
| 0.55 | 282.0 | -0.9743 | 1.1706 |
| 0.65 | 66.0 | 1.6344 | 1.6345 |
| 0.65 | 78.0 | -0.4537 | 1.5775 |
| 0.65 | 90.0 | 1.322 | 1.5851 |
| 0.65 | 102.0 | 0.2512 | 1.5084 |
| 0.65 | 114.0 | -0.9666 | 1.3943 |
| 0.65 | 246.0 | -1.1517 | 1.2207 |
| 0.65 | 258.0 | 0.1763 | 1.1194 |
| 0.65 | 270.0 | 0.1312 | 1.0587 |
| 0.65 | 282.0 | 0.5841 | 1.0919 |
| 0.75 | 90.0 | 1.9878 | 1.4684 |
| 0.75 | 102.0 | 1.6836 | 1.2402 |
| 0.75 | 114.0 | -0.1227 | 1.1362 |
| 0.75 | 126.0 | 0.1137 | 1.2844 |
| 0.75 | 222.0 | 0.2281 | 1.5402 |
| 0.75 | 234.0 | -0.7451 | 1.1936 |
| 0.75 | 246.0 | -1.0313 | 1.0565 |
| 0.75 | 258.0 | 0.5375 | 0.8451 |
| 0.75 | 270.0 | 0.2673 | 0.9211 |
| 0.75 | 282.0 | 2.5346 | 1.2757 |
| 0.75 | 294.0 | 1.4131 | 1.4806 |
| 0.85 | 90.0 | -1.0054 | 1.6788 |
| 0.85 | 102.0 | -0.8978 | 1.2134 |
| 0.85 | 114.0 | 0.2092 | 1.3944 |
| 0.85 | 126.0 | -0.9605 | 1.2573 |
| 0.85 | 138.0 | 1.9521 | 1.4717 |
| 0.85 | 150.0 | -0.0518 | 1.6559 |
| 0.85 | 210.0 | 0.828 | 1.8056 |
| 0.85 | 222.0 | 1.6134 | 1.6504 |
| 0.85 | 234.0 | 0.4031 | 1.1952 |
| 0.85 | 246.0 | -1.0817 | 1.0014 |
| 0.85 | 258.0 | -0.4284 | 0.9669 |
| 0.85 | 270.0 | 1.2645 | 1.0176 |
| 0.85 | 282.0 | -0.472 | 1.2092 |
| 0.95 | 102.0 | -0.8948 | 5.6387 |
| 0.95 | 114.0 | -0.18 | 6.1258 |
| 0.95 | 126.0 | 3.1482 | 4.8866 |
| 0.95 | 138.0 | 2.2113 | 4.9799 |
| 0.95 | 150.0 | 3.9955 | 1.0156 |
| 0.95 | 222.0 | 1.5666 | 4.5185 |
| 0.95 | 234.0 | 4.0331 | 4.0059 |
| 0.95 | 246.0 | 2.6336 | 3.4715 |
| 0.95 | 258.0 | 5.521 | 3.6031 |
| 0.95 | 270.0 | 6.4253 | 3.3366 |
| 0.95 | 282.0 | 3.1506 | 4.2806 |
Experiment comment: