Measurement E151M2249
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALL | |
| εL: | 0.342 | |
| Q2: | 0.205 GeV2 | |
| W: | 1445.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.9454 | |
| cos(θπ+) | φ(π+), [deg] | ALL | uncertainty |
|---|---|---|---|
| 0.05 | 54.0 | 0.6707 | 0.7014 |
| 0.05 | 66.0 | 1.2182 | 0.7784 |
| 0.05 | 294.0 | -0.1887 | 0.8425 |
| 0.05 | 306.0 | 0.3652 | 0.9598 |
| 0.15 | 54.0 | -0.1516 | 0.635 |
| 0.15 | 66.0 | 0.4922 | 0.538 |
| 0.15 | 78.0 | 1.1279 | 0.8264 |
| 0.15 | 282.0 | 0.639 | 0.8161 |
| 0.15 | 294.0 | -0.8388 | 0.5037 |
| 0.15 | 306.0 | 0.1852 | 0.7503 |
| 0.25 | 54.0 | -0.0987 | 0.7077 |
| 0.25 | 66.0 | -0.1285 | 0.5776 |
| 0.25 | 78.0 | 0.2408 | 0.6718 |
| 0.25 | 282.0 | 0.2937 | 0.655 |
| 0.25 | 294.0 | 0.041 | 0.558 |
| 0.25 | 306.0 | 0.4534 | 0.6614 |
| 0.35 | 54.0 | 1.2567 | 0.613 |
| 0.35 | 66.0 | 0.1918 | 0.6035 |
| 0.35 | 78.0 | -0.4268 | 0.7521 |
| 0.35 | 270.0 | 0.191 | 0.7861 |
| 0.35 | 282.0 | 0.2676 | 0.5295 |
| 0.35 | 294.0 | 0.409 | 0.5214 |
| 0.35 | 306.0 | -0.8842 | 0.7986 |
| 0.45 | 54.0 | 0.0717 | 1.0043 |
| 0.45 | 66.0 | 0.2723 | 0.6722 |
| 0.45 | 78.0 | -0.4103 | 0.7902 |
| 0.45 | 90.0 | -0.2784 | 0.7487 |
| 0.45 | 102.0 | -0.2769 | 0.7027 |
| 0.45 | 270.0 | 0.7086 | 0.8003 |
| 0.45 | 282.0 | 0.1772 | 0.5454 |
| 0.45 | 294.0 | 0.7754 | 0.4995 |
| 0.45 | 306.0 | 0.6337 | 0.975 |
| 0.45 | 318.0 | 0.9111 | 0.8754 |
| 0.55 | 54.0 | -0.3217 | 0.7579 |
| 0.55 | 66.0 | 0.86 | 0.8556 |
| 0.55 | 78.0 | -0.1656 | 0.6388 |
| 0.55 | 90.0 | -0.0472 | 0.5421 |
| 0.55 | 102.0 | -0.1334 | 0.5598 |
| 0.55 | 114.0 | 1.222 | 0.6704 |
| 0.55 | 246.0 | 1.6223 | 0.8109 |
| 0.55 | 258.0 | 0.9322 | 0.703 |
| 0.55 | 270.0 | 1.2937 | 0.6722 |
| 0.55 | 282.0 | 0.1773 | 0.5394 |
| 0.55 | 294.0 | 0.9711 | 0.673 |
| 0.55 | 306.0 | 0.9114 | 0.5437 |
| 0.65 | 54.0 | 1.4688 | 0.7465 |
| 0.65 | 78.0 | -0.2317 | 0.508 |
| 0.65 | 90.0 | 0.2887 | 0.4033 |
| 0.65 | 102.0 | -0.149 | 0.4043 |
| 0.65 | 114.0 | -0.3765 | 0.5345 |
| 0.65 | 126.0 | -0.5007 | 0.6181 |
| 0.65 | 222.0 | -0.7244 | 0.9512 |
| 0.65 | 234.0 | 0.6841 | 0.7766 |
| 0.65 | 246.0 | -0.1515 | 0.5246 |
| 0.65 | 258.0 | -0.1221 | 0.5134 |
| 0.65 | 270.0 | -0.1821 | 0.5919 |
| 0.65 | 282.0 | -0.3503 | 0.6347 |
| 0.65 | 294.0 | -2.4618 | 2.4618 |
| 0.65 | 306.0 | -1.0962 | 0.6915 |
| 0.75 | 66.0 | -0.3045 | 0.5889 |
| 0.75 | 78.0 | 0.3853 | 0.5966 |
| 0.75 | 90.0 | 0.5641 | 0.3908 |
| 0.75 | 102.0 | -0.3625 | 0.3969 |
| 0.75 | 114.0 | -0.2449 | 0.4109 |
| 0.75 | 126.0 | -0.5497 | 0.4923 |
| 0.75 | 138.0 | 0.3226 | 0.7061 |
| 0.75 | 198.0 | -0.3517 | 0.8813 |
| 0.75 | 210.0 | 0.6446 | 0.6778 |
| 0.75 | 222.0 | 0.2137 | 0.5934 |
| 0.75 | 234.0 | 0.4763 | 0.5436 |
| 0.75 | 246.0 | -0.047 | 0.4555 |
| 0.75 | 258.0 | -0.1304 | 0.4125 |
| 0.75 | 270.0 | 0.2274 | 0.4593 |
| 0.75 | 282.0 | -0.7747 | 0.577 |
| 0.75 | 294.0 | 1.2877 | 1.0331 |
| 0.85 | 54.0 | 0.3915 | 0.7542 |
| 0.85 | 66.0 | 0.213 | 0.4325 |
| 0.85 | 78.0 | -0.3997 | 0.6705 |
| 0.85 | 90.0 | 0.156 | 0.4394 |
| 0.85 | 102.0 | -0.5445 | 0.4036 |
| 0.85 | 114.0 | 0.5911 | 0.423 |
| 0.85 | 126.0 | -0.0129 | 0.4551 |
| 0.85 | 138.0 | 0.587 | 0.5985 |
| 0.85 | 150.0 | 0.7064 | 0.8221 |
| 0.85 | 162.0 | 0.5328 | 0.931 |
| 0.85 | 186.0 | -1.6496 | 0.6833 |
| 0.85 | 198.0 | 0.849 | 0.7612 |
| 0.85 | 210.0 | 1.0535 | 0.558 |
| 0.85 | 222.0 | -0.0774 | 0.5101 |
| 0.85 | 234.0 | 0.069 | 0.4312 |
| 0.85 | 246.0 | 0.3035 | 0.3828 |
| 0.85 | 258.0 | 0.0306 | 0.3477 |
| 0.85 | 270.0 | -0.3124 | 0.3794 |
| 0.85 | 282.0 | 0.8902 | 0.3866 |
| 0.85 | 294.0 | 0.0072 | 0.4854 |
| 0.85 | 306.0 | -0.5149 | 0.6936 |
| 0.95 | 54.0 | 0.4983 | 0.6458 |
| 0.95 | 66.0 | 0.0437 | 0.5287 |
| 0.95 | 78.0 | 0.9038 | 0.6957 |
| 0.95 | 102.0 | 0.1265 | 0.6284 |
| 0.95 | 114.0 | 0.4614 | 0.5745 |
| 0.95 | 126.0 | -0.2033 | 0.6437 |
| 0.95 | 138.0 | 1.1031 | 0.6994 |
| 0.95 | 150.0 | 0.7748 | 0.7595 |
| 0.95 | 162.0 | -0.5949 | 0.722 |
| 0.95 | 186.0 | -0.5185 | 0.8103 |
| 0.95 | 198.0 | 0.5022 | 0.7111 |
| 0.95 | 210.0 | 0.0546 | 0.5256 |
| 0.95 | 222.0 | 0.3132 | 0.487 |
| 0.95 | 234.0 | 0.0454 | 0.499 |
| 0.95 | 246.0 | -0.4166 | 0.5048 |
| 0.95 | 258.0 | 0.1425 | 0.4409 |
| 0.95 | 270.0 | 1.128 | 0.3906 |
| 0.95 | 282.0 | 0.4781 | 0.3755 |
| 0.95 | 294.0 | 0.4557 | 0.3716 |
| 0.95 | 306.0 | -0.2344 | 0.453 |
| 0.95 | 318.0 | -0.5511 | 0.6544 |
Experiment comment: