Measurement E151M2281
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALL | |
| εL: | 0.1346 | |
| Q2: | 0.101 GeV2 | |
| W: | 1535.0 GeV | |
| Ebeam: | 2.999 GeV | |
| ε: | 0.9411 | |
| cos(θπ+) | φ(π+), [deg] | ALL | uncertainty |
|---|---|---|---|
| 0.15 | 66.0 | 0.8288 | 0.9507 |
| 0.25 | 66.0 | -0.2709 | 0.6715 |
| 0.25 | 78.0 | 0.7792 | 0.71 |
| 0.25 | 282.0 | -0.151 | 0.6698 |
| 0.25 | 294.0 | 0.4187 | 0.7035 |
| 0.35 | 66.0 | -0.2052 | 0.7463 |
| 0.35 | 78.0 | -0.6499 | 0.64 |
| 0.35 | 270.0 | 0.1325 | 0.6502 |
| 0.35 | 282.0 | -0.0265 | 0.6089 |
| 0.35 | 294.0 | -0.5574 | 0.6239 |
| 0.45 | 66.0 | -0.7058 | 0.6621 |
| 0.45 | 78.0 | -0.2582 | 0.8215 |
| 0.45 | 102.0 | -0.0406 | 0.9763 |
| 0.45 | 114.0 | 2.1304 | 0.7078 |
| 0.45 | 258.0 | -1.9853 | 0.8611 |
| 0.45 | 270.0 | -0.8208 | 0.7018 |
| 0.45 | 282.0 | 0.7279 | 0.5587 |
| 0.45 | 294.0 | 0.4391 | 0.6895 |
| 0.55 | 54.0 | -0.9481 | 0.9456 |
| 0.55 | 66.0 | -0.1732 | 0.7332 |
| 0.55 | 102.0 | 0.4751 | 0.6396 |
| 0.55 | 114.0 | 0.1611 | 0.6159 |
| 0.55 | 126.0 | -0.8751 | 0.6446 |
| 0.55 | 138.0 | -1.3064 | 0.8966 |
| 0.55 | 222.0 | -0.0271 | 0.9141 |
| 0.55 | 234.0 | 0.0907 | 0.893 |
| 0.55 | 246.0 | 0.1193 | 0.9524 |
| 0.55 | 258.0 | 1.2447 | 0.7315 |
| 0.55 | 270.0 | 0.0679 | 0.5684 |
| 0.55 | 282.0 | 0.1821 | 0.6445 |
| 0.55 | 294.0 | -0.4823 | 0.8667 |
| 0.65 | 54.0 | -0.2994 | 0.7472 |
| 0.65 | 90.0 | -1.283 | 0.7511 |
| 0.65 | 102.0 | -0.2264 | 0.5794 |
| 0.65 | 114.0 | 0.1091 | 0.5319 |
| 0.65 | 126.0 | 0.8383 | 0.564 |
| 0.65 | 138.0 | 0.2627 | 0.8209 |
| 0.65 | 150.0 | 0.629 | 0.8837 |
| 0.65 | 186.0 | 0.5009 | 1.0128 |
| 0.65 | 198.0 | 0.2595 | 0.8216 |
| 0.65 | 210.0 | 0.2072 | 0.7713 |
| 0.65 | 222.0 | -0.0691 | 0.6561 |
| 0.65 | 234.0 | -1.5171 | 0.5341 |
| 0.65 | 246.0 | -1.8495 | 0.6196 |
| 0.65 | 258.0 | 1.0407 | 0.7846 |
| 0.65 | 270.0 | -1.3539 | 0.8622 |
| 0.65 | 282.0 | -0.7776 | 0.9218 |
| 0.65 | 294.0 | 0.2533 | 0.6598 |
| 0.65 | 306.0 | 1.005 | 0.7412 |
| 0.75 | 78.0 | -0.4033 | 0.8857 |
| 0.75 | 90.0 | 2.2542 | 0.5625 |
| 0.75 | 102.0 | -0.445 | 0.5956 |
| 0.75 | 114.0 | 0.8883 | 0.4814 |
| 0.75 | 126.0 | 0.0956 | 0.5579 |
| 0.75 | 138.0 | -0.6839 | 0.6073 |
| 0.75 | 150.0 | 0.4087 | 0.8431 |
| 0.75 | 186.0 | 0.1245 | 0.8071 |
| 0.75 | 198.0 | -0.4421 | 0.671 |
| 0.75 | 210.0 | 0.0519 | 0.6377 |
| 0.75 | 222.0 | 0.4645 | 0.6131 |
| 0.75 | 234.0 | 0.4256 | 0.508 |
| 0.75 | 246.0 | 0.5968 | 0.6065 |
| 0.75 | 258.0 | 0.3418 | 0.8189 |
| 0.75 | 282.0 | -0.0471 | 0.6929 |
| 0.75 | 294.0 | -1.0218 | 0.6116 |
| 0.85 | 78.0 | 0.5725 | 0.5466 |
| 0.85 | 90.0 | 0.754 | 0.6194 |
| 0.85 | 102.0 | -0.1459 | 0.667 |
| 0.85 | 114.0 | 0.087 | 0.6927 |
| 0.85 | 126.0 | 0.5491 | 0.6237 |
| 0.85 | 138.0 | -1.8182 | 0.6305 |
| 0.85 | 150.0 | -1.4989 | 0.9766 |
| 0.85 | 186.0 | 0.011 | 0.7683 |
| 0.85 | 198.0 | -1.0069 | 0.7376 |
| 0.85 | 210.0 | 0.2747 | 0.5895 |
| 0.85 | 222.0 | 0.0658 | 0.5191 |
| 0.85 | 234.0 | -0.2903 | 0.4893 |
| 0.85 | 246.0 | 0.3099 | 0.5236 |
| 0.85 | 258.0 | -0.1047 | 0.6041 |
| 0.85 | 270.0 | -1.6928 | 0.9016 |
| 0.85 | 282.0 | -0.9807 | 0.8853 |
| 0.95 | 90.0 | -0.7976 | 0.9169 |
| 0.95 | 102.0 | 0.283 | 0.6588 |
| 0.95 | 114.0 | -1.3542 | 0.7507 |
| 0.95 | 174.0 | 0.5533 | 0.874 |
| 0.95 | 186.0 | 0.4105 | 0.9709 |
| 0.95 | 198.0 | -0.4534 | 0.8095 |
| 0.95 | 210.0 | 0.0824 | 0.7281 |
| 0.95 | 222.0 | -0.0143 | 0.6141 |
| 0.95 | 234.0 | 0.7152 | 0.5133 |
| 0.95 | 246.0 | -1.1782 | 0.4773 |
| 0.95 | 258.0 | 0.7235 | 0.5183 |
| 0.95 | 270.0 | -0.1895 | 0.6487 |
Experiment comment: