Measurement E8M10
| 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: | 1.28 — 1.3 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 16.14 | 1.605 |
| 7.5 | 45.0 | 23.58 | 3.849 |
| 7.5 | 75.0 | 21.03 | 5.442 |
| 7.5 | 285.0 | 19.36 | 3.622 |
| 7.5 | 315.0 | 16.1 | 1.878 |
| 7.5 | 345.0 | 14.91 | 1.572 |
| 22.5 | 15.0 | 15.0 | 1.126 |
| 22.5 | 45.0 | 13.97 | 1.869 |
| 22.5 | 135.0 | 15.04 | 0.7531 |
| 22.5 | 165.0 | 14.55 | 0.6811 |
| 22.5 | 195.0 | 14.33 | 0.675 |
| 22.5 | 225.0 | 14.2 | 0.7199 |
| 22.5 | 315.0 | 16.02 | 2.501 |
| 22.5 | 345.0 | 14.02 | 1.078 |
| 37.5 | 45.0 | 8.283 | 1.331 |
| 37.5 | 105.0 | 17.45 | 2.362 |
| 37.5 | 135.0 | 12.5 | 0.6166 |
| 37.5 | 165.0 | 9.997 | 0.4412 |
| 37.5 | 195.0 | 11.47 | 0.4808 |
| 37.5 | 225.0 | 12.49 | 0.6718 |
| 37.5 | 255.0 | 15.21 | 1.631 |
| 37.5 | 315.0 | 8.824 | 0.8946 |
| 52.5 | 45.0 | 10.59 | 0.6872 |
| 52.5 | 75.0 | 12.51 | 1.199 |
| 52.5 | 105.0 | 13.44 | 0.6796 |
| 52.5 | 135.0 | 13.68 | 1.155 |
| 52.5 | 165.0 | 8.445 | 0.3448 |
| 52.5 | 195.0 | 9.152 | 0.375 |
| 52.5 | 225.0 | 10.93 | 0.8273 |
| 52.5 | 255.0 | 11.71 | 0.5919 |
| 52.5 | 285.0 | 11.9 | 1.025 |
| 52.5 | 315.0 | 12.95 | 1.85 |
| 67.5 | 75.0 | 11.08 | 0.4212 |
| 67.5 | 105.0 | 11.7 | 0.4387 |
| 67.5 | 135.0 | 9.115 | 0.657 |
| 67.5 | 165.0 | 7.039 | 0.3713 |
| 67.5 | 195.0 | 6.989 | 0.355 |
| 67.5 | 225.0 | 11.62 | 0.8766 |
| 67.5 | 255.0 | 11.74 | 0.441 |
| 67.5 | 285.0 | 10.95 | 0.4105 |
| 82.5 | 45.0 | 7.693 | 0.9578 |
| 82.5 | 75.0 | 8.718 | 0.4233 |
| 82.5 | 105.0 | 10.37 | 0.3969 |
| 82.5 | 135.0 | 8.092 | 0.5535 |
| 82.5 | 165.0 | 5.599 | 0.2926 |
| 82.5 | 195.0 | 5.532 | 0.297 |
| 82.5 | 225.0 | 8.634 | 0.664 |
| 82.5 | 255.0 | 9.652 | 0.3671 |
| 82.5 | 285.0 | 9.222 | 0.4968 |
| 82.5 | 315.0 | 6.818 | 0.7009 |
| 97.5 | 15.0 | 2.648 | 0.4214 |
| 97.5 | 45.0 | 5.028 | 0.2626 |
| 97.5 | 75.0 | 7.771 | 0.5386 |
| 97.5 | 105.0 | 8.2 | 0.3606 |
| 97.5 | 135.0 | 8.553 | 0.8766 |
| 97.5 | 165.0 | 4.501 | 0.2859 |
| 97.5 | 195.0 | 4.66 | 0.2752 |
| 97.5 | 225.0 | 6.079 | 0.4117 |
| 97.5 | 255.0 | 9.65 | 0.385 |
| 97.5 | 285.0 | 7.708 | 0.5212 |
| 97.5 | 315.0 | 5.279 | 0.2844 |
| 97.5 | 345.0 | 4.75 | 2.331 |
| 112.5 | 15.0 | 2.203 | 0.2545 |
| 112.5 | 45.0 | 4.178 | 0.2624 |
| 112.5 | 75.0 | 5.526 | 0.4592 |
| 112.5 | 105.0 | 6.271 | 0.3044 |
| 112.5 | 135.0 | 5.331 | 0.3927 |
| 112.5 | 165.0 | 4.086 | 0.5733 |
| 112.5 | 195.0 | 3.773 | 0.5307 |
| 112.5 | 225.0 | 5.06 | 0.4552 |
| 112.5 | 255.0 | 6.744 | 0.3096 |
| 112.5 | 285.0 | 5.478 | 0.4273 |
| 112.5 | 315.0 | 4.163 | 0.2866 |
| 112.5 | 345.0 | 2.646 | 0.3029 |
| 127.5 | 15.0 | 1.882 | 0.2806 |
| 127.5 | 45.0 | 3.02 | 0.2348 |
| 127.5 | 75.0 | 3.949 | 0.2885 |
| 127.5 | 105.0 | 4.689 | 0.5495 |
| 127.5 | 135.0 | 3.315 | 0.3468 |
| 127.5 | 225.0 | 3.608 | 0.3302 |
| 127.5 | 255.0 | 4.95 | 0.9039 |
| 127.5 | 285.0 | 4.872 | 0.4091 |
| 127.5 | 315.0 | 3.058 | 0.235 |
| 127.5 | 345.0 | 1.89 | 0.24 |
| 142.5 | 15.0 | 1.479 | 0.2504 |
| 142.5 | 45.0 | 2.397 | 0.4837 |
| 142.5 | 75.0 | 2.902 | 0.2241 |
| 142.5 | 255.0 | 3.315 | 0.912 |
| 142.5 | 285.0 | 2.842 | 0.2543 |
| 142.5 | 315.0 | 3.663 | 0.7925 |
| 142.5 | 345.0 | 1.642 | 0.1941 |
| 157.5 | 15.0 | 1.272 | 0.2086 |
| 157.5 | 345.0 | 1.296 | 0.2004 |
Measurement comment:
Experiment comment: