Measurement E8M57
| 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: | 1.28 — 1.3 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 18.79 | 2.955 |
| 7.5 | 45.0 | 12.1 | 1.823 |
| 7.5 | 75.0 | 14.0 | 2.114 |
| 7.5 | 105.0 | 17.77 | 3.659 |
| 7.5 | 135.0 | 26.68 | 13.05 |
| 7.5 | 255.0 | 16.47 | 2.983 |
| 7.5 | 285.0 | 11.5 | 1.983 |
| 7.5 | 315.0 | 15.63 | 2.219 |
| 7.5 | 345.0 | 14.14 | 1.828 |
| 22.5 | 15.0 | 11.64 | 1.009 |
| 22.5 | 45.0 | 11.74 | 1.59 |
| 22.5 | 75.0 | 11.93 | 1.927 |
| 22.5 | 165.0 | 9.228 | 1.107 |
| 22.5 | 195.0 | 9.865 | 1.392 |
| 22.5 | 285.0 | 13.95 | 2.171 |
| 22.5 | 315.0 | 9.395 | 1.267 |
| 22.5 | 345.0 | 11.08 | 0.9406 |
| 37.5 | 15.0 | 15.25 | 6.415 |
| 37.5 | 45.0 | 9.771 | 1.744 |
| 37.5 | 75.0 | 12.56 | 6.148 |
| 37.5 | 135.0 | 9.476 | 0.6233 |
| 37.5 | 165.0 | 10.69 | 0.5616 |
| 37.5 | 195.0 | 10.14 | 0.5414 |
| 37.5 | 225.0 | 8.668 | 0.5777 |
| 37.5 | 315.0 | 9.587 | 1.72 |
| 52.5 | 45.0 | 7.675 | 0.5068 |
| 52.5 | 75.0 | 6.903 | 1.089 |
| 52.5 | 105.0 | 8.54 | 0.5358 |
| 52.5 | 135.0 | 9.057 | 0.5598 |
| 52.5 | 165.0 | 7.546 | 0.4056 |
| 52.5 | 195.0 | 7.621 | 0.3875 |
| 52.5 | 225.0 | 9.336 | 0.5842 |
| 52.5 | 255.0 | 9.184 | 0.5669 |
| 52.5 | 285.0 | 13.35 | 4.482 |
| 52.5 | 315.0 | 7.328 | 0.4991 |
| 67.5 | 45.0 | 7.42 | 1.125 |
| 67.5 | 75.0 | 7.356 | 0.6555 |
| 67.5 | 105.0 | 7.646 | 0.4212 |
| 67.5 | 135.0 | 8.085 | 0.5463 |
| 67.5 | 165.0 | 6.562 | 0.353 |
| 67.5 | 195.0 | 6.489 | 0.3453 |
| 67.5 | 225.0 | 7.754 | 0.5182 |
| 67.5 | 255.0 | 8.403 | 0.4261 |
| 67.5 | 285.0 | 7.336 | 0.6345 |
| 67.5 | 315.0 | 5.819 | 0.841 |
| 82.5 | 15.0 | 2.552 | 0.4051 |
| 82.5 | 45.0 | 4.231 | 0.939 |
| 82.5 | 75.0 | 6.497 | 0.367 |
| 82.5 | 105.0 | 6.993 | 0.3592 |
| 82.5 | 135.0 | 6.494 | 0.4886 |
| 82.5 | 165.0 | 5.491 | 0.3822 |
| 82.5 | 195.0 | 5.113 | 0.3495 |
| 82.5 | 225.0 | 6.498 | 0.4578 |
| 82.5 | 255.0 | 6.973 | 0.3522 |
| 82.5 | 285.0 | 6.329 | 0.3433 |
| 82.5 | 315.0 | 4.337 | 0.778 |
| 97.5 | 15.0 | 2.161 | 0.6611 |
| 97.5 | 45.0 | 3.673 | 0.2728 |
| 97.5 | 75.0 | 4.485 | 0.3559 |
| 97.5 | 105.0 | 5.521 | 0.3184 |
| 97.5 | 135.0 | 4.963 | 0.3503 |
| 97.5 | 165.0 | 3.92 | 0.2644 |
| 97.5 | 195.0 | 3.999 | 0.2574 |
| 97.5 | 225.0 | 4.473 | 0.3479 |
| 97.5 | 255.0 | 6.07 | 0.3351 |
| 97.5 | 285.0 | 5.561 | 0.3886 |
| 97.5 | 315.0 | 3.61 | 0.2648 |
| 97.5 | 345.0 | 1.781 | 0.5407 |
| 112.5 | 15.0 | 2.32 | 0.5382 |
| 112.5 | 45.0 | 3.221 | 0.2489 |
| 112.5 | 75.0 | 3.757 | 0.3315 |
| 112.5 | 105.0 | 4.526 | 0.2984 |
| 112.5 | 135.0 | 3.147 | 0.264 |
| 112.5 | 165.0 | 3.558 | 0.3143 |
| 112.5 | 195.0 | 3.319 | 0.3022 |
| 112.5 | 225.0 | 3.148 | 0.2705 |
| 112.5 | 255.0 | 4.674 | 0.2918 |
| 112.5 | 285.0 | 4.214 | 0.3874 |
| 112.5 | 315.0 | 2.669 | 0.2168 |
| 112.5 | 345.0 | 2.843 | 0.5296 |
| 127.5 | 15.0 | 2.334 | 0.4081 |
| 127.5 | 45.0 | 2.332 | 0.2226 |
| 127.5 | 75.0 | 2.74 | 0.2802 |
| 127.5 | 105.0 | 3.309 | 0.3214 |
| 127.5 | 135.0 | 2.993 | 0.3675 |
| 127.5 | 165.0 | 1.813 | 0.2366 |
| 127.5 | 195.0 | 2.214 | 0.2858 |
| 127.5 | 225.0 | 2.842 | 0.345 |
| 127.5 | 255.0 | 2.719 | 0.2555 |
| 127.5 | 285.0 | 2.665 | 0.2487 |
| 127.5 | 315.0 | 2.361 | 0.2613 |
| 127.5 | 345.0 | 1.727 | 0.2481 |
| 142.5 | 15.0 | 1.062 | 0.1962 |
| 142.5 | 45.0 | 1.267 | 0.2003 |
| 142.5 | 75.0 | 1.833 | 0.2124 |
| 142.5 | 105.0 | 1.797 | 0.3605 |
| 142.5 | 135.0 | 1.347 | 0.2505 |
| 142.5 | 225.0 | 1.472 | 0.3127 |
| 142.5 | 255.0 | 1.346 | 0.2795 |
| 142.5 | 285.0 | 2.219 | 0.2989 |
| 142.5 | 315.0 | 1.608 | 0.2327 |
| 142.5 | 345.0 | 1.425 | 0.2454 |
| 157.5 | 15.0 | 1.258 | 0.3138 |
| 157.5 | 45.0 | 1.601 | 0.8325 |
| 157.5 | 315.0 | 1.494 | 0.6274 |
| 157.5 | 345.0 | 0.985 | 0.2423 |
Measurement comment:
Experiment comment: