Measurement E8M8
| 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: | 1.24 — 1.26 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 105.0 | 20.15 | 2.838 |
| 7.5 | 135.0 | 14.48 | 1.321 |
| 7.5 | 165.0 | 18.97 | 1.581 |
| 7.5 | 195.0 | 16.73 | 1.442 |
| 7.5 | 225.0 | 19.31 | 1.684 |
| 7.5 | 255.0 | 16.22 | 2.019 |
| 22.5 | 15.0 | 14.84 | 1.097 |
| 22.5 | 45.0 | 20.97 | 4.384 |
| 22.5 | 105.0 | 18.48 | 1.111 |
| 22.5 | 135.0 | 17.42 | 0.8396 |
| 22.5 | 165.0 | 16.99 | 0.7906 |
| 22.5 | 195.0 | 16.85 | 0.78 |
| 22.5 | 225.0 | 18.17 | 0.8434 |
| 22.5 | 255.0 | 17.48 | 1.104 |
| 22.5 | 345.0 | 15.79 | 1.239 |
| 37.5 | 105.0 | 17.61 | 1.958 |
| 37.5 | 135.0 | 17.55 | 0.807 |
| 37.5 | 165.0 | 15.12 | 0.609 |
| 37.5 | 195.0 | 15.24 | 0.6181 |
| 37.5 | 225.0 | 16.3 | 0.7739 |
| 37.5 | 255.0 | 18.1 | 2.99 |
| 37.5 | 285.0 | 22.63 | 4.726 |
| 52.5 | 45.0 | 13.41 | 1.481 |
| 52.5 | 75.0 | 17.36 | 0.6913 |
| 52.5 | 105.0 | 18.2 | 0.9677 |
| 52.5 | 135.0 | 14.85 | 0.8903 |
| 52.5 | 165.0 | 12.3 | 0.483 |
| 52.5 | 195.0 | 13.66 | 0.5328 |
| 52.5 | 225.0 | 19.71 | 1.752 |
| 52.5 | 255.0 | 17.92 | 1.278 |
| 52.5 | 285.0 | 17.41 | 0.6563 |
| 52.5 | 315.0 | 15.68 | 1.902 |
| 67.5 | 45.0 | 11.27 | 1.515 |
| 67.5 | 75.0 | 17.71 | 0.5704 |
| 67.5 | 105.0 | 19.07 | 0.656 |
| 67.5 | 135.0 | 16.64 | 1.419 |
| 67.5 | 165.0 | 11.25 | 0.508 |
| 67.5 | 195.0 | 11.19 | 0.514 |
| 67.5 | 225.0 | 15.62 | 1.119 |
| 67.5 | 255.0 | 18.82 | 0.6523 |
| 67.5 | 285.0 | 17.0 | 0.5524 |
| 67.5 | 315.0 | 9.176 | 0.9077 |
| 82.5 | 45.0 | 10.69 | 0.9216 |
| 82.5 | 75.0 | 16.42 | 0.6012 |
| 82.5 | 105.0 | 17.84 | 0.5922 |
| 82.5 | 135.0 | 13.59 | 0.8176 |
| 82.5 | 165.0 | 10.33 | 0.4153 |
| 82.5 | 195.0 | 9.568 | 0.3804 |
| 82.5 | 225.0 | 14.67 | 1.12 |
| 82.5 | 255.0 | 18.16 | 0.5825 |
| 82.5 | 285.0 | 17.46 | 0.6489 |
| 82.5 | 315.0 | 10.46 | 0.7958 |
| 97.5 | 15.0 | 7.106 | 0.9244 |
| 97.5 | 45.0 | 10.73 | 0.467 |
| 97.5 | 75.0 | 15.91 | 0.9679 |
| 97.5 | 105.0 | 15.77 | 0.5386 |
| 97.5 | 135.0 | 12.94 | 0.9883 |
| 97.5 | 165.0 | 8.338 | 0.4338 |
| 97.5 | 195.0 | 8.675 | 0.4484 |
| 97.5 | 225.0 | 11.33 | 0.6765 |
| 97.5 | 255.0 | 17.26 | 0.5509 |
| 97.5 | 285.0 | 14.66 | 0.7984 |
| 97.5 | 315.0 | 10.51 | 0.4466 |
| 97.5 | 345.0 | 6.402 | 0.7353 |
| 112.5 | 15.0 | 7.518 | 0.7226 |
| 112.5 | 45.0 | 9.831 | 0.4411 |
| 112.5 | 75.0 | 13.74 | 0.8521 |
| 112.5 | 105.0 | 12.97 | 0.4934 |
| 112.5 | 135.0 | 9.461 | 0.7462 |
| 112.5 | 165.0 | 7.229 | 0.5927 |
| 112.5 | 195.0 | 7.507 | 0.5901 |
| 112.5 | 225.0 | 8.841 | 0.5916 |
| 112.5 | 255.0 | 13.08 | 0.4667 |
| 112.5 | 285.0 | 13.84 | 0.8056 |
| 112.5 | 315.0 | 9.732 | 0.4691 |
| 112.5 | 345.0 | 5.996 | 0.4863 |
| 127.5 | 15.0 | 5.911 | 0.6104 |
| 127.5 | 45.0 | 8.287 | 0.4236 |
| 127.5 | 75.0 | 9.247 | 0.5594 |
| 127.5 | 105.0 | 10.15 | 0.8558 |
| 127.5 | 135.0 | 7.389 | 0.5378 |
| 127.5 | 225.0 | 9.19 | 0.9214 |
| 127.5 | 255.0 | 9.837 | 0.7481 |
| 127.5 | 285.0 | 10.33 | 0.6345 |
| 127.5 | 315.0 | 9.598 | 0.5439 |
| 127.5 | 345.0 | 5.661 | 0.5543 |
| 142.5 | 15.0 | 5.201 | 0.4287 |
| 142.5 | 45.0 | 6.262 | 0.5901 |
| 142.5 | 75.0 | 7.634 | 0.4384 |
| 142.5 | 285.0 | 8.209 | 0.508 |
| 142.5 | 315.0 | 8.34 | 0.8185 |
| 142.5 | 345.0 | 5.678 | 0.5731 |
| 157.5 | 15.0 | 5.479 | 0.5908 |
| 157.5 | 315.0 | 8.469 | 5.404 |
| 157.5 | 345.0 | 5.978 | 0.856 |
Measurement comment:
Experiment comment: