Measurement E8M7
| 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: | 1.22 — 1.24 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 13.7 | 4.918 |
| 7.5 | 45.0 | 14.29 | 4.495 |
| 7.5 | 75.0 | 18.08 | 2.011 |
| 7.5 | 105.0 | 13.89 | 1.196 |
| 7.5 | 135.0 | 16.53 | 1.584 |
| 7.5 | 165.0 | 18.29 | 1.616 |
| 7.5 | 195.0 | 15.93 | 1.374 |
| 7.5 | 225.0 | 20.63 | 1.958 |
| 7.5 | 255.0 | 13.46 | 1.216 |
| 7.5 | 285.0 | 10.56 | 1.373 |
| 7.5 | 315.0 | 14.0 | 3.562 |
| 22.5 | 15.0 | 13.35 | 1.503 |
| 22.5 | 75.0 | 15.6 | 2.399 |
| 22.5 | 105.0 | 18.32 | 1.103 |
| 22.5 | 135.0 | 16.81 | 0.8262 |
| 22.5 | 165.0 | 17.88 | 0.8334 |
| 22.5 | 195.0 | 17.08 | 0.8412 |
| 22.5 | 225.0 | 17.23 | 0.8292 |
| 22.5 | 255.0 | 18.81 | 1.166 |
| 22.5 | 285.0 | 15.24 | 2.293 |
| 22.5 | 345.0 | 15.27 | 2.693 |
| 37.5 | 75.0 | 12.32 | 1.743 |
| 37.5 | 105.0 | 24.0 | 2.539 |
| 37.5 | 135.0 | 19.42 | 0.8547 |
| 37.5 | 165.0 | 16.31 | 0.677 |
| 37.5 | 195.0 | 16.6 | 0.6638 |
| 37.5 | 225.0 | 17.61 | 0.7975 |
| 37.5 | 255.0 | 19.29 | 2.101 |
| 37.5 | 285.0 | 13.54 | 1.622 |
| 52.5 | 45.0 | 14.17 | 1.297 |
| 52.5 | 75.0 | 18.97 | 0.6893 |
| 52.5 | 105.0 | 22.42 | 1.406 |
| 52.5 | 135.0 | 19.04 | 1.448 |
| 52.5 | 165.0 | 15.31 | 0.6064 |
| 52.5 | 195.0 | 14.55 | 0.5717 |
| 52.5 | 225.0 | 21.34 | 1.872 |
| 52.5 | 255.0 | 20.41 | 1.131 |
| 52.5 | 285.0 | 19.0 | 0.6548 |
| 52.5 | 315.0 | 12.99 | 1.484 |
| 67.5 | 45.0 | 11.44 | 0.9096 |
| 67.5 | 75.0 | 20.58 | 0.6351 |
| 67.5 | 105.0 | 23.71 | 0.7916 |
| 67.5 | 135.0 | 21.67 | 1.975 |
| 67.5 | 165.0 | 14.27 | 0.6052 |
| 67.5 | 195.0 | 13.82 | 0.5922 |
| 67.5 | 225.0 | 21.72 | 1.393 |
| 67.5 | 255.0 | 22.46 | 0.7434 |
| 67.5 | 285.0 | 21.68 | 0.6812 |
| 82.5 | 45.0 | 12.9 | 1.084 |
| 82.5 | 75.0 | 21.2 | 0.702 |
| 82.5 | 105.0 | 23.18 | 0.7289 |
| 82.5 | 135.0 | 18.91 | 1.082 |
| 82.5 | 165.0 | 11.9 | 0.4466 |
| 82.5 | 195.0 | 12.54 | 0.4596 |
| 82.5 | 225.0 | 18.08 | 1.186 |
| 82.5 | 255.0 | 24.34 | 0.7312 |
| 82.5 | 285.0 | 20.75 | 0.6848 |
| 82.5 | 315.0 | 15.92 | 1.292 |
| 97.5 | 15.0 | 9.572 | 1.167 |
| 97.5 | 45.0 | 15.33 | 0.6429 |
| 97.5 | 75.0 | 20.0 | 1.047 |
| 97.5 | 105.0 | 20.69 | 0.6423 |
| 97.5 | 135.0 | 17.62 | 0.9821 |
| 97.5 | 165.0 | 10.32 | 0.5131 |
| 97.5 | 195.0 | 10.8 | 0.5711 |
| 97.5 | 225.0 | 16.66 | 0.8832 |
| 97.5 | 255.0 | 22.84 | 0.6769 |
| 97.5 | 285.0 | 22.94 | 1.288 |
| 97.5 | 315.0 | 14.6 | 0.5841 |
| 97.5 | 345.0 | 8.624 | 0.7629 |
| 112.5 | 15.0 | 8.933 | 0.911 |
| 112.5 | 45.0 | 13.53 | 0.5369 |
| 112.5 | 75.0 | 19.43 | 0.9926 |
| 112.5 | 105.0 | 18.22 | 0.6204 |
| 112.5 | 135.0 | 14.7 | 0.9907 |
| 112.5 | 165.0 | 9.451 | 0.8953 |
| 112.5 | 195.0 | 9.573 | 0.896 |
| 112.5 | 225.0 | 15.75 | 1.649 |
| 112.5 | 255.0 | 17.77 | 0.5754 |
| 112.5 | 285.0 | 18.33 | 1.028 |
| 112.5 | 315.0 | 13.89 | 0.607 |
| 112.5 | 345.0 | 8.119 | 0.5935 |
| 127.5 | 15.0 | 8.617 | 0.8038 |
| 127.5 | 45.0 | 12.27 | 0.5691 |
| 127.5 | 75.0 | 15.05 | 0.7634 |
| 127.5 | 105.0 | 14.57 | 0.9142 |
| 127.5 | 135.0 | 12.25 | 0.8332 |
| 127.5 | 225.0 | 10.6 | 0.7544 |
| 127.5 | 255.0 | 15.62 | 0.9967 |
| 127.5 | 285.0 | 15.22 | 0.8002 |
| 127.5 | 315.0 | 12.03 | 0.587 |
| 127.5 | 345.0 | 9.261 | 0.9271 |
| 142.5 | 15.0 | 8.241 | 0.6542 |
| 142.5 | 45.0 | 8.957 | 0.9969 |
| 142.5 | 75.0 | 11.85 | 0.5907 |
| 142.5 | 285.0 | 13.23 | 0.6961 |
| 142.5 | 315.0 | 11.41 | 1.196 |
| 142.5 | 345.0 | 7.475 | 0.587 |
| 157.5 | 15.0 | 7.863 | 0.7716 |
| 157.5 | 45.0 | 8.111 | 2.295 |
| 157.5 | 345.0 | 7.99 | 0.7771 |
Measurement comment:
Experiment comment: