Measurement E8M22
| Experiment: | E89-038 CLAS experiment | |
|---|---|---|
| Year: | 1999 | |
| Spokespersons: | V. Burkert, R. Minehart | |
| Reaction: | ep → π+n | |
| Polarization: | none | |
| Quantity: | dσ/dΩ | |
| Q2: | 0.25 — 0.35 GeV2 | |
| W: | 1.52 — 1.54 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 15.83 | 2.211 |
| 7.5 | 45.0 | 15.83 | 3.01 |
| 7.5 | 75.0 | 21.4 | 2.823 |
| 7.5 | 105.0 | 11.53 | 1.255 |
| 7.5 | 135.0 | 9.597 | 0.8163 |
| 7.5 | 165.0 | 12.27 | 0.9978 |
| 7.5 | 195.0 | 9.762 | 0.8494 |
| 7.5 | 225.0 | 10.49 | 0.9424 |
| 7.5 | 255.0 | 13.16 | 1.665 |
| 7.5 | 285.0 | 11.47 | 1.806 |
| 7.5 | 315.0 | 23.29 | 5.729 |
| 7.5 | 345.0 | 16.83 | 2.301 |
| 22.5 | 75.0 | 6.988 | 1.154 |
| 22.5 | 105.0 | 8.733 | 2.448 |
| 22.5 | 135.0 | 8.039 | 0.7381 |
| 22.5 | 165.0 | 5.588 | 0.373 |
| 22.5 | 195.0 | 6.647 | 0.4284 |
| 22.5 | 225.0 | 7.566 | 0.7068 |
| 22.5 | 255.0 | 11.17 | 2.375 |
| 22.5 | 285.0 | 8.248 | 1.617 |
| 37.5 | 75.0 | 7.19 | 0.3227 |
| 37.5 | 105.0 | 6.075 | 0.4273 |
| 37.5 | 135.0 | 6.519 | 0.8066 |
| 37.5 | 165.0 | 4.094 | 0.5295 |
| 37.5 | 195.0 | 5.58 | 0.8504 |
| 37.5 | 225.0 | 6.738 | 0.8695 |
| 37.5 | 255.0 | 7.293 | 0.4682 |
| 37.5 | 285.0 | 7.083 | 0.3069 |
| 52.5 | 45.0 | 2.954 | 0.3517 |
| 52.5 | 75.0 | 5.061 | 0.3186 |
| 52.5 | 285.0 | 4.932 | 0.2834 |
| 52.5 | 315.0 | 4.585 | 0.5975 |
| 67.5 | 15.0 | 2.098 | 0.9529 |
| 67.5 | 45.0 | 3.092 | 0.2111 |
| 67.5 | 75.0 | 3.531 | 0.4623 |
| 67.5 | 105.0 | 3.87 | 0.4631 |
| 67.5 | 135.0 | 2.856 | 0.2131 |
| 67.5 | 165.0 | 1.963 | 0.122 |
| 67.5 | 195.0 | 1.955 | 0.126 |
| 67.5 | 225.0 | 2.935 | 0.21 |
| 67.5 | 255.0 | 3.42 | 0.2726 |
| 67.5 | 315.0 | 2.565 | 0.1839 |
| 67.5 | 345.0 | 1.235 | 0.3526 |
| 82.5 | 15.0 | 1.301 | 0.578 |
| 82.5 | 45.0 | 2.42 | 0.5262 |
| 82.5 | 75.0 | 3.827 | 0.3994 |
| 82.5 | 105.0 | 3.463 | 0.1641 |
| 82.5 | 135.0 | 2.723 | 0.1868 |
| 82.5 | 165.0 | 1.538 | 0.1039 |
| 82.5 | 195.0 | 1.664 | 0.1125 |
| 82.5 | 225.0 | 2.452 | 0.1837 |
| 82.5 | 255.0 | 3.563 | 0.1619 |
| 82.5 | 285.0 | 3.897 | 0.3739 |
| 82.5 | 315.0 | 2.217 | 0.4129 |
| 82.5 | 345.0 | 1.143 | 0.5378 |
| 97.5 | 15.0 | 1.228 | 0.1623 |
| 97.5 | 45.0 | 2.569 | 0.1581 |
| 97.5 | 75.0 | 3.628 | 0.2503 |
| 97.5 | 105.0 | 3.743 | 0.1815 |
| 97.5 | 135.0 | 2.827 | 0.2069 |
| 97.5 | 165.0 | 1.601 | 0.1591 |
| 97.5 | 195.0 | 1.842 | 0.1628 |
| 97.5 | 225.0 | 2.762 | 0.2105 |
| 97.5 | 255.0 | 3.777 | 0.1861 |
| 97.5 | 285.0 | 3.862 | 0.2599 |
| 97.5 | 315.0 | 2.52 | 0.1602 |
| 97.5 | 345.0 | 1.131 | 0.1451 |
| 112.5 | 15.0 | 1.462 | 0.1931 |
| 112.5 | 45.0 | 3.043 | 0.2268 |
| 112.5 | 75.0 | 3.849 | 0.2618 |
| 112.5 | 105.0 | 3.928 | 0.2281 |
| 112.5 | 135.0 | 3.021 | 0.2122 |
| 112.5 | 165.0 | 1.61 | 0.1344 |
| 112.5 | 195.0 | 1.596 | 0.1294 |
| 112.5 | 225.0 | 2.712 | 0.1818 |
| 112.5 | 255.0 | 4.051 | 0.2134 |
| 112.5 | 285.0 | 3.551 | 0.2602 |
| 112.5 | 315.0 | 2.403 | 0.1864 |
| 112.5 | 345.0 | 1.677 | 0.1924 |
| 127.5 | 15.0 | 1.626 | 0.1676 |
| 127.5 | 45.0 | 2.678 | 0.2484 |
| 127.5 | 75.0 | 3.125 | 0.219 |
| 127.5 | 105.0 | 3.281 | 0.2871 |
| 127.5 | 135.0 | 2.523 | 0.2417 |
| 127.5 | 165.0 | 1.803 | 0.6152 |
| 127.5 | 195.0 | 2.121 | 0.3936 |
| 127.5 | 225.0 | 2.866 | 0.4424 |
| 127.5 | 255.0 | 3.238 | 0.241 |
| 127.5 | 285.0 | 3.493 | 0.2794 |
| 127.5 | 315.0 | 2.456 | 0.2639 |
| 127.5 | 345.0 | 1.534 | 0.1755 |
| 142.5 | 15.0 | 1.582 | 0.1965 |
| 142.5 | 45.0 | 2.262 | 0.2474 |
| 142.5 | 75.0 | 2.725 | 0.253 |
| 142.5 | 105.0 | 2.756 | 0.7525 |
| 142.5 | 135.0 | 2.342 | 0.4329 |
| 142.5 | 255.0 | 3.277 | 0.8339 |
| 142.5 | 285.0 | 2.929 | 0.2774 |
| 142.5 | 315.0 | 2.027 | 0.3165 |
| 142.5 | 345.0 | 1.261 | 0.1408 |
| 157.5 | 15.0 | 1.965 | 0.5154 |
| 157.5 | 345.0 | 0.8838 | 0.1951 |
Measurement comment:
Experiment comment: