Measurement E8M66
| 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: | 1.46 — 1.48 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 8.184 | 1.154 |
| 7.5 | 45.0 | 7.265 | 1.525 |
| 7.5 | 75.0 | 10.64 | 2.033 |
| 7.5 | 105.0 | 5.324 | 0.9889 |
| 7.5 | 135.0 | 7.771 | 1.145 |
| 7.5 | 165.0 | 4.7 | 0.7141 |
| 7.5 | 195.0 | 5.285 | 0.8141 |
| 7.5 | 225.0 | 5.545 | 0.9135 |
| 7.5 | 255.0 | 6.216 | 1.025 |
| 7.5 | 285.0 | 4.862 | 0.9044 |
| 7.5 | 315.0 | 8.446 | 1.569 |
| 7.5 | 345.0 | 9.474 | 1.84 |
| 22.5 | 45.0 | 5.414 | 1.138 |
| 22.5 | 75.0 | 7.846 | 1.183 |
| 22.5 | 105.0 | 7.21 | 1.013 |
| 22.5 | 135.0 | 4.357 | 0.5255 |
| 22.5 | 165.0 | 4.02 | 0.4456 |
| 22.5 | 195.0 | 4.609 | 0.4939 |
| 22.5 | 225.0 | 5.588 | 0.6425 |
| 22.5 | 255.0 | 6.614 | 0.8827 |
| 22.5 | 285.0 | 5.434 | 0.7969 |
| 22.5 | 315.0 | 6.366 | 1.66 |
| 37.5 | 45.0 | 7.817 | 1.583 |
| 37.5 | 75.0 | 6.746 | 0.475 |
| 37.5 | 105.0 | 6.539 | 0.6712 |
| 37.5 | 135.0 | 3.537 | 0.6341 |
| 37.5 | 165.0 | 2.407 | 0.5616 |
| 37.5 | 225.0 | 4.977 | 0.8865 |
| 37.5 | 255.0 | 6.895 | 0.693 |
| 37.5 | 285.0 | 6.418 | 0.4321 |
| 37.5 | 315.0 | 6.977 | 0.708 |
| 52.5 | 45.0 | 5.183 | 0.593 |
| 52.5 | 75.0 | 6.528 | 0.4151 |
| 52.5 | 105.0 | 6.42 | 0.7011 |
| 52.5 | 165.0 | 2.258 | 0.394 |
| 52.5 | 195.0 | 3.829 | 1.915 |
| 52.5 | 255.0 | 7.135 | 1.392 |
| 52.5 | 285.0 | 6.02 | 0.392 |
| 52.5 | 315.0 | 5.891 | 0.9347 |
| 67.5 | 15.0 | 3.54 | 0.5867 |
| 67.5 | 45.0 | 4.84 | 0.3606 |
| 67.5 | 75.0 | 6.752 | 1.681 |
| 67.5 | 105.0 | 6.917 | 1.802 |
| 67.5 | 135.0 | 4.343 | 0.3256 |
| 67.5 | 165.0 | 3.012 | 0.1956 |
| 67.5 | 195.0 | 2.895 | 0.2061 |
| 67.5 | 225.0 | 4.154 | 0.2892 |
| 67.5 | 255.0 | 5.607 | 0.5246 |
| 67.5 | 285.0 | 4.925 | 0.6279 |
| 67.5 | 315.0 | 4.649 | 0.4278 |
| 67.5 | 345.0 | 2.971 | 0.4463 |
| 82.5 | 15.0 | 1.848 | 0.2983 |
| 82.5 | 45.0 | 3.232 | 0.3844 |
| 82.5 | 75.0 | 3.98 | 0.4683 |
| 82.5 | 105.0 | 4.601 | 0.2514 |
| 82.5 | 135.0 | 3.762 | 0.2759 |
| 82.5 | 165.0 | 3.018 | 0.212 |
| 82.5 | 195.0 | 2.799 | 0.2047 |
| 82.5 | 225.0 | 3.896 | 0.2987 |
| 82.5 | 255.0 | 4.799 | 0.2588 |
| 82.5 | 285.0 | 5.484 | 0.9204 |
| 82.5 | 315.0 | 4.423 | 1.043 |
| 82.5 | 345.0 | 1.793 | 0.3274 |
| 97.5 | 45.0 | 2.416 | 0.2629 |
| 97.5 | 75.0 | 3.3 | 0.2896 |
| 97.5 | 105.0 | 4.09 | 0.2448 |
| 97.5 | 135.0 | 3.039 | 0.279 |
| 97.5 | 165.0 | 2.321 | 0.2378 |
| 97.5 | 195.0 | 2.253 | 0.2363 |
| 97.5 | 225.0 | 3.512 | 0.3194 |
| 97.5 | 255.0 | 3.389 | 0.2313 |
| 97.5 | 285.0 | 3.688 | 0.3239 |
| 97.5 | 315.0 | 2.317 | 0.2121 |
| 112.5 | 15.0 | 1.056 | 0.2514 |
| 112.5 | 45.0 | 1.798 | 0.202 |
| 112.5 | 75.0 | 2.358 | 0.2432 |
| 112.5 | 105.0 | 2.254 | 0.2013 |
| 112.5 | 135.0 | 2.331 | 0.2279 |
| 112.5 | 165.0 | 2.14 | 0.22 |
| 112.5 | 195.0 | 2.04 | 0.2 |
| 112.5 | 225.0 | 2.442 | 0.2366 |
| 112.5 | 255.0 | 2.98 | 0.2527 |
| 112.5 | 285.0 | 2.855 | 0.305 |
| 112.5 | 315.0 | 1.434 | 0.1705 |
| 112.5 | 345.0 | 0.9066 | 0.3224 |
| 127.5 | 15.0 | 0.6914 | 0.2284 |
| 127.5 | 45.0 | 1.346 | 0.1957 |
| 127.5 | 75.0 | 1.928 | 0.2689 |
| 127.5 | 105.0 | 1.79 | 0.1927 |
| 127.5 | 135.0 | 1.632 | 0.2373 |
| 127.5 | 165.0 | 1.889 | 0.3875 |
| 127.5 | 195.0 | 1.24 | 0.246 |
| 127.5 | 225.0 | 1.5 | 0.1989 |
| 127.5 | 255.0 | 1.845 | 0.2071 |
| 127.5 | 285.0 | 1.856 | 0.232 |
| 127.5 | 315.0 | 1.058 | 0.1668 |
| 127.5 | 345.0 | 0.6753 | 0.1458 |
| 142.5 | 15.0 | 0.428 | 0.1648 |
| 142.5 | 45.0 | 0.7549 | 0.166 |
| 142.5 | 75.0 | 1.431 | 0.344 |
| 142.5 | 105.0 | 1.321 | 0.362 |
| 142.5 | 135.0 | 1.58 | 0.4629 |
| 142.5 | 225.0 | 1.215 | 0.3386 |
| 142.5 | 255.0 | 2.612 | 1.337 |
| 142.5 | 285.0 | 1.718 | 0.391 |
| 142.5 | 315.0 | 0.7978 | 0.1646 |
| 142.5 | 345.0 | 0.5026 | 0.1506 |
| 157.5 | 345.0 | 0.2955 | 0.1392 |
Measurement comment:
Experiment comment: