Measurement E8M11
| 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: | 1.3 — 1.32 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 18.33 | 1.695 |
| 7.5 | 45.0 | 15.95 | 1.535 |
| 7.5 | 75.0 | 14.96 | 1.627 |
| 7.5 | 105.0 | 23.78 | 12.02 |
| 7.5 | 255.0 | 16.83 | 4.862 |
| 7.5 | 285.0 | 18.33 | 1.997 |
| 7.5 | 315.0 | 20.88 | 2.246 |
| 7.5 | 345.0 | 15.78 | 1.477 |
| 22.5 | 15.0 | 16.38 | 1.263 |
| 22.5 | 45.0 | 15.89 | 2.313 |
| 22.5 | 75.0 | 15.51 | 3.078 |
| 22.5 | 135.0 | 13.57 | 1.386 |
| 22.5 | 165.0 | 12.27 | 0.6435 |
| 22.5 | 195.0 | 12.52 | 0.6473 |
| 22.5 | 225.0 | 12.27 | 1.307 |
| 22.5 | 315.0 | 13.44 | 2.789 |
| 22.5 | 345.0 | 15.82 | 1.542 |
| 37.5 | 45.0 | 8.987 | 0.8631 |
| 37.5 | 105.0 | 12.3 | 1.161 |
| 37.5 | 135.0 | 11.7 | 0.6229 |
| 37.5 | 165.0 | 9.095 | 0.3895 |
| 37.5 | 195.0 | 9.62 | 0.4117 |
| 37.5 | 225.0 | 12.58 | 0.6972 |
| 37.5 | 255.0 | 11.75 | 1.312 |
| 37.5 | 315.0 | 10.48 | 0.9042 |
| 52.5 | 45.0 | 10.11 | 0.815 |
| 52.5 | 75.0 | 11.63 | 1.21 |
| 52.5 | 105.0 | 11.85 | 0.5573 |
| 52.5 | 135.0 | 10.33 | 0.7816 |
| 52.5 | 165.0 | 7.683 | 0.3275 |
| 52.5 | 195.0 | 7.446 | 0.3186 |
| 52.5 | 225.0 | 8.932 | 0.6396 |
| 52.5 | 255.0 | 11.14 | 0.524 |
| 52.5 | 315.0 | 10.3 | 0.7274 |
| 67.5 | 75.0 | 9.173 | 0.423 |
| 67.5 | 105.0 | 11.66 | 0.4446 |
| 67.5 | 135.0 | 8.477 | 0.6177 |
| 67.5 | 165.0 | 5.363 | 0.279 |
| 67.5 | 195.0 | 5.48 | 0.2946 |
| 67.5 | 225.0 | 8.514 | 0.6952 |
| 67.5 | 255.0 | 10.04 | 0.3922 |
| 67.5 | 285.0 | 9.061 | 0.3885 |
| 82.5 | 45.0 | 5.208 | 0.7397 |
| 82.5 | 75.0 | 7.021 | 0.3646 |
| 82.5 | 105.0 | 8.121 | 0.3277 |
| 82.5 | 135.0 | 6.625 | 0.5837 |
| 82.5 | 165.0 | 4.22 | 0.2565 |
| 82.5 | 195.0 | 4.639 | 0.2862 |
| 82.5 | 225.0 | 7.201 | 0.5798 |
| 82.5 | 255.0 | 8.399 | 0.3425 |
| 82.5 | 285.0 | 7.396 | 0.4075 |
| 82.5 | 315.0 | 4.789 | 0.4733 |
| 97.5 | 15.0 | 1.513 | 0.2464 |
| 97.5 | 45.0 | 3.9 | 0.2345 |
| 97.5 | 75.0 | 6.434 | 0.6108 |
| 97.5 | 105.0 | 6.458 | 0.309 |
| 97.5 | 135.0 | 5.479 | 0.5024 |
| 97.5 | 165.0 | 4.246 | 0.265 |
| 97.5 | 195.0 | 3.774 | 0.2365 |
| 97.5 | 225.0 | 4.926 | 0.376 |
| 97.5 | 255.0 | 7.708 | 0.3403 |
| 97.5 | 285.0 | 5.427 | 0.3915 |
| 97.5 | 315.0 | 3.979 | 0.2328 |
| 97.5 | 345.0 | 1.714 | 0.3349 |
| 112.5 | 15.0 | 1.481 | 0.2192 |
| 112.5 | 45.0 | 2.932 | 0.2185 |
| 112.5 | 75.0 | 4.425 | 0.4192 |
| 112.5 | 105.0 | 4.197 | 0.231 |
| 112.5 | 135.0 | 3.932 | 0.41 |
| 112.5 | 165.0 | 2.75 | 0.2505 |
| 112.5 | 195.0 | 2.89 | 0.2986 |
| 112.5 | 225.0 | 3.386 | 0.3088 |
| 112.5 | 255.0 | 4.741 | 0.2435 |
| 112.5 | 285.0 | 4.682 | 0.3981 |
| 112.5 | 315.0 | 3.232 | 0.2392 |
| 112.5 | 345.0 | 1.536 | 0.2975 |
| 127.5 | 15.0 | 1.761 | 0.4446 |
| 127.5 | 45.0 | 1.971 | 0.1971 |
| 127.5 | 75.0 | 3.144 | 0.2556 |
| 127.5 | 105.0 | 3.179 | 0.3558 |
| 127.5 | 135.0 | 2.655 | 0.296 |
| 127.5 | 225.0 | 2.452 | 0.2326 |
| 127.5 | 255.0 | 3.066 | 0.4294 |
| 127.5 | 285.0 | 3.574 | 0.3507 |
| 127.5 | 315.0 | 1.734 | 0.1713 |
| 127.5 | 345.0 | 1.21 | 0.2214 |
| 142.5 | 15.0 | 0.9464 | 0.2222 |
| 142.5 | 45.0 | 1.418 | 0.2093 |
| 142.5 | 75.0 | 1.841 | 0.1755 |
| 142.5 | 285.0 | 1.953 | 0.1993 |
| 142.5 | 315.0 | 1.626 | 0.4248 |
| 142.5 | 345.0 | 1.137 | 0.1773 |
| 157.5 | 15.0 | 0.9196 | 0.1683 |
| 157.5 | 345.0 | 1.24 | 0.383 |
Measurement comment:
Experiment comment: