Measurement E8M54
| 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: | 1.22 — 1.24 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 195.0 | 10.78 | 1.846 |
| 7.5 | 225.0 | 6.473 | 1.139 |
| 22.5 | 15.0 | 9.983 | 1.034 |
| 22.5 | 45.0 | 14.36 | 3.592 |
| 22.5 | 105.0 | 11.55 | 1.135 |
| 22.5 | 135.0 | 11.71 | 0.8324 |
| 22.5 | 165.0 | 11.49 | 0.7701 |
| 22.5 | 195.0 | 13.51 | 0.8648 |
| 22.5 | 225.0 | 11.11 | 0.7921 |
| 22.5 | 255.0 | 11.33 | 1.167 |
| 22.5 | 315.0 | 10.28 | 1.945 |
| 22.5 | 345.0 | 8.114 | 0.8677 |
| 37.5 | 15.0 | 9.94 | 1.264 |
| 37.5 | 45.0 | 10.62 | 2.493 |
| 37.5 | 75.0 | 14.32 | 5.797 |
| 37.5 | 105.0 | 12.74 | 1.012 |
| 37.5 | 135.0 | 12.58 | 0.7037 |
| 37.5 | 165.0 | 9.99 | 0.5089 |
| 37.5 | 195.0 | 12.36 | 0.6019 |
| 37.5 | 225.0 | 11.81 | 0.6993 |
| 37.5 | 255.0 | 12.4 | 0.9413 |
| 37.5 | 285.0 | 10.75 | 3.42 |
| 37.5 | 315.0 | 10.86 | 2.544 |
| 37.5 | 345.0 | 9.376 | 2.192 |
| 52.5 | 45.0 | 10.94 | 1.415 |
| 52.5 | 75.0 | 13.2 | 1.023 |
| 52.5 | 105.0 | 13.66 | 0.7736 |
| 52.5 | 135.0 | 12.23 | 0.7396 |
| 52.5 | 165.0 | 10.47 | 0.4894 |
| 52.5 | 195.0 | 10.55 | 0.5063 |
| 52.5 | 225.0 | 13.16 | 0.7447 |
| 52.5 | 255.0 | 13.67 | 0.8054 |
| 52.5 | 285.0 | 13.02 | 1.018 |
| 52.5 | 315.0 | 12.29 | 2.094 |
| 67.5 | 45.0 | 11.38 | 1.733 |
| 67.5 | 75.0 | 13.9 | 0.5589 |
| 67.5 | 105.0 | 14.83 | 0.716 |
| 67.5 | 135.0 | 12.76 | 0.7135 |
| 67.5 | 165.0 | 9.989 | 0.4827 |
| 67.5 | 195.0 | 9.249 | 0.445 |
| 67.5 | 225.0 | 13.12 | 0.7583 |
| 67.5 | 255.0 | 14.59 | 0.6691 |
| 67.5 | 285.0 | 14.29 | 0.5228 |
| 67.5 | 315.0 | 10.8 | 1.385 |
| 82.5 | 45.0 | 9.012 | 1.354 |
| 82.5 | 75.0 | 13.43 | 0.5453 |
| 82.5 | 105.0 | 16.67 | 0.6798 |
| 82.5 | 135.0 | 13.25 | 0.7799 |
| 82.5 | 165.0 | 8.8 | 0.4621 |
| 82.5 | 195.0 | 8.781 | 0.4644 |
| 82.5 | 225.0 | 11.81 | 0.719 |
| 82.5 | 255.0 | 15.36 | 0.5952 |
| 82.5 | 285.0 | 13.88 | 0.536 |
| 82.5 | 315.0 | 9.431 | 1.146 |
| 97.5 | 15.0 | 5.18 | 0.5095 |
| 97.5 | 45.0 | 9.997 | 0.5578 |
| 97.5 | 75.0 | 14.02 | 0.6886 |
| 97.5 | 105.0 | 15.42 | 0.6144 |
| 97.5 | 135.0 | 10.88 | 0.5917 |
| 97.5 | 165.0 | 6.821 | 0.3881 |
| 97.5 | 195.0 | 8.566 | 0.4435 |
| 97.5 | 225.0 | 11.55 | 0.6455 |
| 97.5 | 255.0 | 15.2 | 0.6209 |
| 97.5 | 285.0 | 14.22 | 0.6554 |
| 97.5 | 315.0 | 10.4 | 0.5823 |
| 97.5 | 345.0 | 5.758 | 0.566 |
| 112.5 | 15.0 | 6.377 | 0.8632 |
| 112.5 | 45.0 | 10.39 | 0.5265 |
| 112.5 | 75.0 | 11.6 | 0.7199 |
| 112.5 | 105.0 | 12.82 | 0.5162 |
| 112.5 | 135.0 | 9.631 | 0.563 |
| 112.5 | 165.0 | 6.92 | 0.4599 |
| 112.5 | 195.0 | 6.547 | 0.4523 |
| 112.5 | 225.0 | 10.1 | 0.6138 |
| 112.5 | 255.0 | 13.05 | 0.5399 |
| 112.5 | 285.0 | 13.87 | 0.8277 |
| 112.5 | 315.0 | 11.02 | 0.5527 |
| 112.5 | 345.0 | 7.084 | 0.8463 |
| 127.5 | 15.0 | 6.356 | 0.5471 |
| 127.5 | 45.0 | 8.182 | 0.4696 |
| 127.5 | 75.0 | 10.67 | 0.6385 |
| 127.5 | 105.0 | 9.62 | 0.5375 |
| 127.5 | 135.0 | 8.079 | 0.6202 |
| 127.5 | 165.0 | 4.346 | 0.5524 |
| 127.5 | 195.0 | 5.936 | 0.7696 |
| 127.5 | 225.0 | 8.117 | 0.5819 |
| 127.5 | 255.0 | 10.38 | 0.5918 |
| 127.5 | 285.0 | 10.65 | 0.6567 |
| 127.5 | 315.0 | 9.168 | 0.5529 |
| 127.5 | 345.0 | 6.14 | 0.5361 |
| 142.5 | 15.0 | 6.119 | 0.6758 |
| 142.5 | 45.0 | 7.46 | 0.6627 |
| 142.5 | 75.0 | 9.015 | 0.6189 |
| 142.5 | 105.0 | 9.324 | 1.136 |
| 142.5 | 255.0 | 7.692 | 0.8973 |
| 142.5 | 285.0 | 9.507 | 0.7077 |
| 142.5 | 315.0 | 7.811 | 0.6298 |
| 142.5 | 345.0 | 4.958 | 0.5367 |
| 157.5 | 15.0 | 8.768 | 2.319 |
| 157.5 | 45.0 | 7.14 | 1.721 |
| 157.5 | 315.0 | 10.66 | 3.022 |
| 157.5 | 345.0 | 8.539 | 1.444 |
Measurement comment:
Experiment comment: