Measurement E8M56
| Experiment: | E89-038 CLAS experiment | |
|---|---|---|
| Year: | 1999 | |
| Spokespersons: | V. Burkert, R. Minehart | |
| Reaction: | ep → π+n | |
| Polarization: | none | |
| Quantity: | dσ/dΩ | |
| Q2: | 0.45 — 0.55 GeV2 | |
| W: | 1.26 — 1.28 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 15.5 | 2.133 |
| 7.5 | 45.0 | 10.72 | 1.625 |
| 7.5 | 75.0 | 18.8 | 4.942 |
| 7.5 | 285.0 | 18.42 | 5.059 |
| 7.5 | 315.0 | 10.97 | 1.812 |
| 7.5 | 345.0 | 16.11 | 2.305 |
| 22.5 | 15.0 | 10.61 | 0.8647 |
| 22.5 | 45.0 | 15.73 | 2.248 |
| 22.5 | 75.0 | 14.74 | 2.893 |
| 22.5 | 135.0 | 11.82 | 1.452 |
| 22.5 | 165.0 | 11.0 | 0.7158 |
| 22.5 | 195.0 | 12.03 | 0.8007 |
| 22.5 | 225.0 | 9.285 | 0.8236 |
| 22.5 | 285.0 | 13.8 | 3.262 |
| 22.5 | 315.0 | 9.985 | 1.406 |
| 22.5 | 345.0 | 10.86 | 0.9394 |
| 37.5 | 15.0 | 9.898 | 1.896 |
| 37.5 | 45.0 | 10.17 | 1.4 |
| 37.5 | 105.0 | 14.59 | 1.446 |
| 37.5 | 135.0 | 11.38 | 0.6987 |
| 37.5 | 165.0 | 10.02 | 0.5011 |
| 37.5 | 195.0 | 9.925 | 0.4903 |
| 37.5 | 225.0 | 11.2 | 0.6956 |
| 37.5 | 255.0 | 11.55 | 1.17 |
| 37.5 | 315.0 | 10.15 | 1.35 |
| 37.5 | 345.0 | 11.42 | 2.645 |
| 52.5 | 45.0 | 9.285 | 0.5749 |
| 52.5 | 75.0 | 10.27 | 3.284 |
| 52.5 | 105.0 | 10.54 | 0.6362 |
| 52.5 | 135.0 | 9.708 | 0.594 |
| 52.5 | 165.0 | 7.943 | 0.4065 |
| 52.5 | 195.0 | 8.57 | 0.4241 |
| 52.5 | 225.0 | 9.487 | 0.5612 |
| 52.5 | 255.0 | 10.93 | 0.6324 |
| 52.5 | 285.0 | 14.65 | 3.5 |
| 52.5 | 315.0 | 9.011 | 0.6001 |
| 67.5 | 45.0 | 6.97 | 1.044 |
| 67.5 | 75.0 | 13.84 | 5.18 |
| 67.5 | 105.0 | 10.37 | 0.5239 |
| 67.5 | 135.0 | 9.606 | 0.5988 |
| 67.5 | 165.0 | 6.869 | 0.3556 |
| 67.5 | 195.0 | 7.197 | 0.3574 |
| 67.5 | 225.0 | 9.743 | 0.5963 |
| 67.5 | 255.0 | 10.17 | 0.5028 |
| 67.5 | 285.0 | 8.34 | 0.5026 |
| 67.5 | 315.0 | 7.672 | 1.206 |
| 82.5 | 15.0 | 4.832 | 1.0 |
| 82.5 | 45.0 | 6.865 | 1.136 |
| 82.5 | 75.0 | 8.534 | 0.4181 |
| 82.5 | 105.0 | 8.672 | 0.417 |
| 82.5 | 135.0 | 8.173 | 0.5616 |
| 82.5 | 165.0 | 6.121 | 0.3683 |
| 82.5 | 195.0 | 6.679 | 0.3906 |
| 82.5 | 225.0 | 8.63 | 0.5759 |
| 82.5 | 255.0 | 9.727 | 0.4273 |
| 82.5 | 285.0 | 8.49 | 0.4035 |
| 82.5 | 315.0 | 5.448 | 0.9662 |
| 82.5 | 345.0 | 6.463 | 1.813 |
| 97.5 | 15.0 | 3.411 | 0.7166 |
| 97.5 | 45.0 | 5.739 | 0.3614 |
| 97.5 | 75.0 | 6.533 | 0.4245 |
| 97.5 | 105.0 | 8.111 | 0.3951 |
| 97.5 | 135.0 | 6.226 | 0.4109 |
| 97.5 | 165.0 | 5.47 | 0.3433 |
| 97.5 | 195.0 | 5.395 | 0.3269 |
| 97.5 | 225.0 | 5.936 | 0.4073 |
| 97.5 | 255.0 | 8.215 | 0.4053 |
| 97.5 | 285.0 | 6.452 | 0.3943 |
| 97.5 | 315.0 | 5.567 | 0.3557 |
| 97.5 | 345.0 | 3.613 | 0.6342 |
| 112.5 | 15.0 | 3.75 | 0.68 |
| 112.5 | 45.0 | 4.594 | 0.3006 |
| 112.5 | 75.0 | 5.601 | 0.4344 |
| 112.5 | 105.0 | 6.577 | 0.3444 |
| 112.5 | 135.0 | 4.358 | 0.3218 |
| 112.5 | 165.0 | 3.593 | 0.2986 |
| 112.5 | 195.0 | 3.559 | 0.3238 |
| 112.5 | 225.0 | 5.001 | 0.3783 |
| 112.5 | 255.0 | 5.502 | 0.3045 |
| 112.5 | 285.0 | 5.447 | 0.4381 |
| 112.5 | 315.0 | 4.67 | 0.3025 |
| 112.5 | 345.0 | 3.401 | 0.5617 |
| 127.5 | 15.0 | 2.766 | 0.3268 |
| 127.5 | 45.0 | 3.678 | 0.3079 |
| 127.5 | 75.0 | 4.09 | 0.3442 |
| 127.5 | 105.0 | 4.533 | 0.3519 |
| 127.5 | 135.0 | 3.347 | 0.3419 |
| 127.5 | 165.0 | 2.544 | 0.3527 |
| 127.5 | 195.0 | 3.0 | 0.5273 |
| 127.5 | 225.0 | 3.397 | 0.3481 |
| 127.5 | 255.0 | 4.818 | 0.3691 |
| 127.5 | 285.0 | 4.439 | 0.3607 |
| 127.5 | 315.0 | 3.749 | 0.314 |
| 127.5 | 345.0 | 3.305 | 0.4111 |
| 142.5 | 15.0 | 1.955 | 0.2744 |
| 142.5 | 45.0 | 2.494 | 0.2901 |
| 142.5 | 75.0 | 3.893 | 0.3562 |
| 142.5 | 105.0 | 3.266 | 0.7456 |
| 142.5 | 255.0 | 3.221 | 0.6099 |
| 142.5 | 285.0 | 3.242 | 0.3505 |
| 142.5 | 315.0 | 2.89 | 0.3372 |
| 142.5 | 345.0 | 2.683 | 0.4503 |
| 157.5 | 15.0 | 2.745 | 0.9308 |
| 157.5 | 45.0 | 2.748 | 0.975 |
| 157.5 | 315.0 | 3.489 | 1.123 |
| 157.5 | 345.0 | 1.59 | 0.409 |
Measurement comment:
Experiment comment: