Measurement E8M50
| Experiment: | E89-038 CLAS experiment | |
|---|---|---|
| Year: | 1999 | |
| Spokespersons: | V. Burkert, R. Minehart | |
| Reaction: | ep → π+n | |
| Polarization: | none | |
| Quantity: | dσ/dΩ | |
| Q2: | 0.45 — 0.55 GeV2 | |
| W: | 1.14 — 1.16 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 2.762 | 1.063 |
| 7.5 | 45.0 | 3.555 | 1.761 |
| 7.5 | 75.0 | 6.38 | 1.737 |
| 7.5 | 105.0 | 4.994 | 2.22 |
| 7.5 | 135.0 | 4.772 | 1.195 |
| 7.5 | 165.0 | 5.931 | 1.621 |
| 7.5 | 195.0 | 6.285 | 1.867 |
| 7.5 | 225.0 | 5.556 | 1.354 |
| 7.5 | 255.0 | 6.118 | 1.59 |
| 7.5 | 285.0 | 6.625 | 2.017 |
| 7.5 | 315.0 | 1.489 | 0.4872 |
| 7.5 | 345.0 | 2.717 | 1.019 |
| 22.5 | 15.0 | 2.501 | 0.4913 |
| 22.5 | 45.0 | 4.726 | 1.021 |
| 22.5 | 75.0 | 5.168 | 1.162 |
| 22.5 | 105.0 | 4.463 | 0.6302 |
| 22.5 | 135.0 | 5.842 | 0.7036 |
| 22.5 | 165.0 | 3.918 | 0.4619 |
| 22.5 | 195.0 | 4.251 | 0.4825 |
| 22.5 | 225.0 | 4.658 | 0.5153 |
| 22.5 | 255.0 | 3.955 | 0.5342 |
| 22.5 | 285.0 | 4.91 | 0.9848 |
| 22.5 | 315.0 | 3.384 | 0.624 |
| 22.5 | 345.0 | 1.968 | 0.3901 |
| 37.5 | 15.0 | 2.382 | 0.8326 |
| 37.5 | 45.0 | 2.73 | 0.5775 |
| 37.5 | 75.0 | 5.578 | 1.081 |
| 37.5 | 105.0 | 3.435 | 0.4548 |
| 37.5 | 135.0 | 5.612 | 0.5551 |
| 37.5 | 165.0 | 5.637 | 0.5109 |
| 37.5 | 195.0 | 4.822 | 0.4588 |
| 37.5 | 225.0 | 4.888 | 0.5058 |
| 37.5 | 255.0 | 3.78 | 0.5708 |
| 37.5 | 285.0 | 4.028 | 0.7202 |
| 37.5 | 315.0 | 2.411 | 0.8182 |
| 37.5 | 345.0 | 2.362 | 0.9406 |
| 52.5 | 45.0 | 3.425 | 0.8463 |
| 52.5 | 75.0 | 4.841 | 0.5701 |
| 52.5 | 105.0 | 5.473 | 0.6483 |
| 52.5 | 135.0 | 5.155 | 0.4962 |
| 52.5 | 165.0 | 4.943 | 0.4184 |
| 52.5 | 195.0 | 5.669 | 0.4333 |
| 52.5 | 225.0 | 4.9 | 0.5015 |
| 52.5 | 255.0 | 5.531 | 0.6618 |
| 52.5 | 285.0 | 5.338 | 0.6641 |
| 52.5 | 315.0 | 2.962 | 0.8365 |
| 67.5 | 45.0 | 3.414 | 0.3396 |
| 67.5 | 75.0 | 6.514 | 0.5012 |
| 67.5 | 105.0 | 8.027 | 0.7926 |
| 67.5 | 135.0 | 7.031 | 0.6708 |
| 67.5 | 165.0 | 4.357 | 0.3824 |
| 67.5 | 195.0 | 4.677 | 0.4003 |
| 67.5 | 225.0 | 6.287 | 0.6634 |
| 67.5 | 255.0 | 6.782 | 0.6458 |
| 67.5 | 285.0 | 5.644 | 0.4227 |
| 67.5 | 315.0 | 4.371 | 0.3778 |
| 82.5 | 45.0 | 3.909 | 0.4118 |
| 82.5 | 75.0 | 6.814 | 0.4457 |
| 82.5 | 105.0 | 7.289 | 0.5717 |
| 82.5 | 135.0 | 6.432 | 0.6257 |
| 82.5 | 165.0 | 5.339 | 0.381 |
| 82.5 | 195.0 | 4.335 | 0.3233 |
| 82.5 | 225.0 | 5.883 | 0.6406 |
| 82.5 | 255.0 | 7.54 | 0.5503 |
| 82.5 | 285.0 | 5.994 | 0.3844 |
| 82.5 | 315.0 | 4.323 | 0.4092 |
| 97.5 | 45.0 | 3.641 | 0.5147 |
| 97.5 | 75.0 | 6.554 | 0.4849 |
| 97.5 | 105.0 | 6.642 | 0.4595 |
| 97.5 | 135.0 | 5.914 | 0.5588 |
| 97.5 | 165.0 | 4.252 | 0.3913 |
| 97.5 | 195.0 | 4.382 | 0.3534 |
| 97.5 | 225.0 | 6.151 | 0.564 |
| 97.5 | 255.0 | 7.467 | 0.4811 |
| 97.5 | 285.0 | 7.289 | 0.501 |
| 97.5 | 315.0 | 3.959 | 0.678 |
| 112.5 | 15.0 | 3.201 | 0.9646 |
| 112.5 | 45.0 | 4.001 | 0.4788 |
| 112.5 | 75.0 | 6.677 | 0.6628 |
| 112.5 | 105.0 | 6.688 | 0.4272 |
| 112.5 | 135.0 | 4.933 | 0.5619 |
| 112.5 | 165.0 | 4.684 | 0.4653 |
| 112.5 | 195.0 | 3.901 | 0.3837 |
| 112.5 | 225.0 | 5.519 | 0.5531 |
| 112.5 | 255.0 | 7.478 | 0.4728 |
| 112.5 | 285.0 | 6.705 | 0.6171 |
| 112.5 | 315.0 | 3.686 | 0.4618 |
| 112.5 | 345.0 | 2.904 | 0.6433 |
| 127.5 | 15.0 | 3.151 | 0.9744 |
| 127.5 | 45.0 | 5.258 | 0.5988 |
| 127.5 | 75.0 | 5.736 | 0.775 |
| 127.5 | 105.0 | 6.752 | 0.5769 |
| 127.5 | 135.0 | 6.393 | 1.52 |
| 127.5 | 165.0 | 5.416 | 1.351 |
| 127.5 | 195.0 | 6.918 | 2.054 |
| 127.5 | 225.0 | 6.719 | 0.8541 |
| 127.5 | 255.0 | 5.816 | 0.51 |
| 127.5 | 285.0 | 5.238 | 0.7757 |
| 127.5 | 315.0 | 4.44 | 0.5347 |
| 127.5 | 345.0 | 1.245 | 0.3863 |
| 142.5 | 15.0 | 2.568 | 1.183 |
| 142.5 | 45.0 | 4.388 | 1.133 |
| 142.5 | 75.0 | 6.052 | 1.358 |
| 142.5 | 105.0 | 12.01 | 3.872 |
| 142.5 | 255.0 | 9.679 | 2.207 |
| 142.5 | 285.0 | 6.666 | 1.712 |
| 142.5 | 315.0 | 4.44 | 0.763 |
| 142.5 | 345.0 | 3.085 | 1.353 |
Measurement comment:
Experiment comment: