Measurement E151M1987
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALL | |
| εL: | 0.23 | |
| Q2: | 0.0593 GeV2 | |
| W: | 1325.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.9627 | |
| cos(θπ+) | φ(π+), [deg] | ALL | uncertainty |
|---|---|---|---|
| 0.25 | 66.0 | -0.5116 | 1.6345 |
| 0.25 | 294.0 | 1.2951 | 0.9683 |
| 0.25 | 306.0 | -0.8656 | 1.0658 |
| 0.35 | 66.0 | 0.1169 | 1.1102 |
| 0.35 | 78.0 | 1.845 | 1.2623 |
| 0.35 | 294.0 | -0.4773 | 1.0239 |
| 0.35 | 306.0 | 1.3836 | 1.0211 |
| 0.45 | 66.0 | -0.7331 | 1.2133 |
| 0.45 | 78.0 | -2.4827 | 1.1399 |
| 0.45 | 90.0 | -0.338 | 1.6286 |
| 0.45 | 282.0 | 0.0759 | 1.331 |
| 0.45 | 294.0 | -0.652 | 0.9321 |
| 0.45 | 306.0 | -1.8287 | 1.192 |
| 0.55 | 78.0 | 0.3137 | 1.104 |
| 0.55 | 90.0 | 2.1358 | 1.1819 |
| 0.55 | 270.0 | 0.393 | 1.4293 |
| 0.55 | 282.0 | 0.0793 | 1.3195 |
| 0.55 | 294.0 | 1.278 | 1.211 |
| 0.65 | 66.0 | 1.7135 | 1.5589 |
| 0.65 | 78.0 | -2.1333 | 1.2776 |
| 0.65 | 90.0 | -1.6874 | 1.54 |
| 0.65 | 114.0 | 0.2479 | 1.562 |
| 0.65 | 126.0 | 2.0035 | 1.4944 |
| 0.65 | 234.0 | 2.519 | 1.2981 |
| 0.65 | 246.0 | 0.0643 | 1.156 |
| 0.65 | 258.0 | 0.552 | 0.9625 |
| 0.65 | 270.0 | -2.679 | 1.1613 |
| 0.65 | 282.0 | 0.5633 | 1.4221 |
| 0.75 | 102.0 | -0.54 | 1.5366 |
| 0.75 | 114.0 | -1.8021 | 1.1296 |
| 0.75 | 126.0 | -2.264 | 1.2479 |
| 0.75 | 138.0 | -0.4101 | 1.3123 |
| 0.75 | 222.0 | -1.6811 | 1.3822 |
| 0.75 | 234.0 | -0.6396 | 1.0897 |
| 0.75 | 246.0 | -0.5166 | 0.9985 |
| 0.75 | 258.0 | -0.3391 | 0.9445 |
| 0.75 | 270.0 | 0.6678 | 1.1211 |
| 0.85 | 102.0 | -0.0954 | 1.7376 |
| 0.85 | 114.0 | -0.0047 | 1.569 |
| 0.85 | 126.0 | 1.6473 | 1.2241 |
| 0.85 | 138.0 | -0.7996 | 1.3511 |
| 0.85 | 150.0 | -0.9836 | 1.6395 |
| 0.85 | 162.0 | -4.6077 | 1.7679 |
| 0.85 | 210.0 | 3.63 | 1.5747 |
| 0.85 | 222.0 | -1.7098 | 1.5536 |
| 0.85 | 234.0 | -0.6075 | 1.2189 |
| 0.85 | 246.0 | -0.9265 | 1.0117 |
| 0.85 | 258.0 | -0.2051 | 1.0246 |
| 0.85 | 270.0 | -0.0251 | 1.1728 |
| 0.95 | 150.0 | -1.5592 | 6.047 |
| 0.95 | 222.0 | 0.0216 | 4.779 |
| 0.95 | 234.0 | 0.3661 | 3.5898 |
| 0.95 | 246.0 | 1.2947 | 4.2871 |
| 0.15 | 306.0 | -0.3527 | 0.503 |
| 0.25 | 66.0 | 0.2139 | 0.4923 |
| 0.25 | 294.0 | -0.4248 | 0.5047 |
| 0.25 | 306.0 | 0.1516 | 0.4222 |
| 0.35 | 66.0 | -0.0181 | 0.4185 |
| 0.35 | 78.0 | -0.044 | 0.4149 |
| 0.35 | 282.0 | 0.3783 | 0.5678 |
| 0.35 | 294.0 | 0.4976 | 0.434 |
| 0.35 | 306.0 | 0.091 | 0.4456 |
| 0.45 | 66.0 | 0.8619 | 0.4186 |
| 0.45 | 78.0 | -0.1309 | 0.3429 |
| 0.45 | 90.0 | -0.4376 | 0.5363 |
| 0.45 | 282.0 | -0.7724 | 0.5327 |
| 0.45 | 294.0 | -0.1025 | 0.4676 |
| 0.55 | 66.0 | -0.289 | 0.506 |
| 0.55 | 78.0 | 0.9779 | 0.3873 |
| 0.55 | 90.0 | 0.4613 | 0.5751 |
| 0.55 | 258.0 | 0.5716 | 0.6082 |
| 0.55 | 270.0 | 1.477 | 0.5795 |
| 0.55 | 282.0 | -1.1401 | 0.5546 |
| 0.55 | 294.0 | 0.8652 | 0.53 |
| 0.65 | 78.0 | -0.2981 | 0.6139 |
| 0.65 | 90.0 | -0.0753 | 0.6991 |
| 0.65 | 102.0 | 0.3368 | 0.5695 |
| 0.65 | 114.0 | 0.2058 | 0.6249 |
| 0.65 | 126.0 | 0.1644 | 0.6365 |
| 0.65 | 234.0 | 0.0604 | 0.6124 |
| 0.65 | 246.0 | 0.4297 | 0.5846 |
| 0.65 | 258.0 | 0.2651 | 0.4578 |
| 0.65 | 270.0 | 0.7427 | 0.5172 |
| 0.65 | 282.0 | 0.2325 | 0.5774 |
| 0.75 | 90.0 | -0.1786 | 0.7147 |
| 0.75 | 102.0 | 0.693 | 0.4878 |
| 0.75 | 114.0 | -0.0881 | 0.4963 |
| 0.75 | 126.0 | 0.2057 | 0.5279 |
| 0.75 | 138.0 | -0.3219 | 0.5711 |
| 0.75 | 150.0 | -0.3918 | 0.72 |
| 0.75 | 222.0 | -1.2335 | 0.6006 |
| 0.75 | 234.0 | 1.1813 | 0.5589 |
| 0.75 | 246.0 | 0.2527 | 0.4217 |
| 0.75 | 258.0 | 0.251 | 0.4208 |
| 0.75 | 270.0 | -0.4432 | 0.494 |
| 0.75 | 282.0 | -0.5736 | 0.6459 |
| 0.85 | 102.0 | -0.4982 | 0.6928 |
| 0.85 | 114.0 | 0.7683 | 0.4978 |
| 0.85 | 126.0 | 0.5531 | 0.5148 |
| 0.85 | 138.0 | 0.7992 | 0.4867 |
| 0.85 | 150.0 | 0.1294 | 0.6959 |
| 0.85 | 162.0 | -0.1992 | 0.7729 |
| 0.85 | 210.0 | -1.5638 | 0.6371 |
| 0.85 | 222.0 | 0.7222 | 0.6308 |
| 0.85 | 234.0 | -0.6982 | 0.5345 |
| 0.85 | 246.0 | 0.2865 | 0.4663 |
| 0.85 | 258.0 | 0.3645 | 0.4746 |
| 0.85 | 270.0 | -0.1158 | 0.4636 |
| 0.95 | 126.0 | 0.839 | 1.2505 |
| 0.95 | 138.0 | 1.3121 | 1.1826 |
| 0.95 | 162.0 | 1.3733 | 1.1605 |
| 0.95 | 210.0 | 4.1443 | 4.1443 |
| 0.95 | 222.0 | -0.3718 | 1.174 |
| 0.95 | 234.0 | 0.2664 | 1.0303 |
| 0.95 | 246.0 | 1.4615 | 0.9831 |
| 0.95 | 258.0 | 0.3772 | 1.0357 |
Experiment comment: