Measurement E8M81
| Experiment: | E89-038 CLAS experiment | |
|---|---|---|
| Year: | 1999 | |
| Spokespersons: | V. Burkert, R. Minehart | |
| Reaction: | ep → π+n | |
| Polarization: | none | |
| Quantity: | dσ/dΩ | |
| Q2: | 0.55 — 0.65 GeV2 | |
| W: | 1.34 — 1.36 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 11.92 | 2.349 |
| 7.5 | 45.0 | 7.857 | 1.834 |
| 7.5 | 75.0 | 8.72 | 1.696 |
| 7.5 | 105.0 | 9.508 | 1.748 |
| 7.5 | 135.0 | 15.75 | 4.144 |
| 7.5 | 165.0 | 17.21 | 5.903 |
| 7.5 | 195.0 | 12.4 | 2.501 |
| 7.5 | 225.0 | 9.506 | 2.683 |
| 7.5 | 255.0 | 9.846 | 2.427 |
| 7.5 | 285.0 | 8.175 | 1.59 |
| 7.5 | 315.0 | 12.74 | 2.941 |
| 7.5 | 345.0 | 8.782 | 1.764 |
| 22.5 | 15.0 | 10.32 | 2.142 |
| 22.5 | 45.0 | 8.819 | 1.925 |
| 22.5 | 75.0 | 8.418 | 1.354 |
| 22.5 | 105.0 | 9.637 | 2.729 |
| 22.5 | 135.0 | 7.045 | 2.103 |
| 22.5 | 225.0 | 8.935 | 2.415 |
| 22.5 | 255.0 | 10.31 | 2.213 |
| 22.5 | 285.0 | 8.919 | 1.61 |
| 22.5 | 315.0 | 6.581 | 2.134 |
| 22.5 | 345.0 | 8.523 | 1.321 |
| 37.5 | 45.0 | 7.166 | 1.131 |
| 37.5 | 75.0 | 8.397 | 1.337 |
| 37.5 | 165.0 | 5.18 | 1.321 |
| 37.5 | 285.0 | 9.211 | 1.302 |
| 37.5 | 315.0 | 6.706 | 1.382 |
| 52.5 | 45.0 | 7.121 | 1.733 |
| 52.5 | 75.0 | 5.567 | 0.7447 |
| 52.5 | 135.0 | 4.992 | 0.4661 |
| 52.5 | 165.0 | 3.927 | 0.2863 |
| 52.5 | 195.0 | 4.98 | 0.3452 |
| 52.5 | 225.0 | 6.175 | 0.5346 |
| 52.5 | 285.0 | 7.473 | 1.364 |
| 52.5 | 315.0 | 5.59 | 0.6538 |
| 67.5 | 45.0 | 4.027 | 1.119 |
| 67.5 | 75.0 | 5.429 | 2.043 |
| 67.5 | 105.0 | 4.873 | 0.3841 |
| 67.5 | 135.0 | 4.789 | 0.4164 |
| 67.5 | 165.0 | 3.538 | 0.2796 |
| 67.5 | 195.0 | 3.626 | 0.2759 |
| 67.5 | 225.0 | 4.476 | 0.4062 |
| 67.5 | 255.0 | 5.293 | 0.4144 |
| 67.5 | 285.0 | 6.274 | 2.2 |
| 67.5 | 315.0 | 4.294 | 0.7925 |
| 82.5 | 15.0 | 1.396 | 0.2906 |
| 82.5 | 75.0 | 3.77 | 0.6727 |
| 82.5 | 105.0 | 4.21 | 0.3125 |
| 82.5 | 135.0 | 3.752 | 0.3809 |
| 82.5 | 165.0 | 3.146 | 0.3259 |
| 82.5 | 195.0 | 3.161 | 0.2858 |
| 82.5 | 225.0 | 3.491 | 0.3407 |
| 82.5 | 255.0 | 3.531 | 0.2775 |
| 82.5 | 285.0 | 3.007 | 0.3393 |
| 82.5 | 315.0 | 2.982 | 0.9802 |
| 82.5 | 345.0 | 1.341 | 0.3205 |
| 97.5 | 45.0 | 1.79 | 0.3264 |
| 97.5 | 75.0 | 2.322 | 0.2637 |
| 97.5 | 105.0 | 2.641 | 0.2258 |
| 97.5 | 135.0 | 3.223 | 0.5314 |
| 97.5 | 165.0 | 2.5 | 0.3445 |
| 97.5 | 195.0 | 2.227 | 0.2859 |
| 97.5 | 225.0 | 2.672 | 0.4001 |
| 97.5 | 255.0 | 3.0 | 0.2993 |
| 97.5 | 285.0 | 2.488 | 0.3143 |
| 97.5 | 315.0 | 1.334 | 0.2026 |
| 112.5 | 45.0 | 1.006 | 0.1876 |
| 112.5 | 75.0 | 1.562 | 0.2317 |
| 112.5 | 105.0 | 1.521 | 0.2164 |
| 112.5 | 135.0 | 1.72 | 0.2595 |
| 112.5 | 165.0 | 1.584 | 0.2599 |
| 112.5 | 195.0 | 1.644 | 0.2223 |
| 112.5 | 225.0 | 1.733 | 0.303 |
| 112.5 | 255.0 | 2.021 | 0.251 |
| 112.5 | 285.0 | 1.534 | 0.3867 |
| 112.5 | 315.0 | 1.087 | 0.1975 |
| 127.5 | 15.0 | 0.4887 | 0.2277 |
| 127.5 | 45.0 | 1.093 | 0.3817 |
| 127.5 | 75.0 | 1.019 | 0.2114 |
| 127.5 | 105.0 | 0.7897 | 0.1393 |
| 127.5 | 135.0 | 1.148 | 0.2412 |
| 127.5 | 165.0 | 1.131 | 0.2874 |
| 127.5 | 195.0 | 0.9501 | 0.2626 |
| 127.5 | 225.0 | 1.078 | 0.2261 |
| 127.5 | 255.0 | 1.362 | 0.2759 |
| 127.5 | 285.0 | 1.125 | 0.2321 |
| 127.5 | 315.0 | 0.8937 | 0.2293 |
| 127.5 | 345.0 | 0.5045 | 0.2172 |
| 142.5 | 15.0 | 0.2272 | 0.07894 |
| 142.5 | 45.0 | 0.2791 | 0.09154 |
| 142.5 | 75.0 | 0.2667 | 0.09338 |
| 142.5 | 105.0 | 0.9939 | 0.3693 |
| 142.5 | 135.0 | 0.4839 | 0.1673 |
| 142.5 | 225.0 | 0.9648 | 0.2981 |
| 142.5 | 255.0 | 0.6818 | 0.2505 |
| 142.5 | 285.0 | 0.5785 | 0.169 |
| 142.5 | 315.0 | 0.4807 | 0.1493 |
| 142.5 | 345.0 | 0.2687 | 0.1122 |
| 157.5 | 15.0 | 0.1929 | 0.1088 |
| 157.5 | 345.0 | 0.3041 | 0.1862 |
Measurement comment:
Experiment comment: