Measurement E8M4
| Experiment: | E89-038 CLAS experiment | |
|---|---|---|
| Year: | 1999 | |
| Spokespersons: | V. Burkert, R. Minehart | |
| Reaction: | ep → π+n | |
| Polarization: | none | |
| Quantity: | dσ/dΩ | |
| Q2: | 0.25 — 0.35 GeV2 | |
| W: | 1.16 — 1.18 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 5.378 | 0.8591 |
| 7.5 | 45.0 | 10.13 | 2.003 |
| 7.5 | 75.0 | 6.144 | 1.14 |
| 7.5 | 105.0 | 6.084 | 0.8833 |
| 7.5 | 135.0 | 9.046 | 1.18 |
| 7.5 | 165.0 | 7.184 | 0.967 |
| 7.5 | 195.0 | 7.769 | 1.028 |
| 7.5 | 225.0 | 9.29 | 1.158 |
| 7.5 | 255.0 | 10.91 | 1.494 |
| 7.5 | 285.0 | 7.098 | 1.03 |
| 7.5 | 315.0 | 7.851 | 1.3 |
| 7.5 | 345.0 | 9.116 | 1.958 |
| 22.5 | 15.0 | 4.161 | 0.5011 |
| 22.5 | 45.0 | 6.375 | 0.692 |
| 22.5 | 75.0 | 6.391 | 0.701 |
| 22.5 | 105.0 | 10.57 | 0.8302 |
| 22.5 | 135.0 | 9.424 | 0.6829 |
| 22.5 | 165.0 | 9.994 | 0.716 |
| 22.5 | 195.0 | 10.22 | 0.7276 |
| 22.5 | 225.0 | 9.443 | 0.7111 |
| 22.5 | 255.0 | 8.626 | 0.7019 |
| 22.5 | 285.0 | 8.034 | 0.802 |
| 22.5 | 315.0 | 5.314 | 0.7023 |
| 22.5 | 345.0 | 3.545 | 0.4616 |
| 37.5 | 15.0 | 2.706 | 0.5349 |
| 37.5 | 45.0 | 3.927 | 0.9604 |
| 37.5 | 75.0 | 7.23 | 1.364 |
| 37.5 | 105.0 | 13.09 | 1.445 |
| 37.5 | 135.0 | 11.94 | 0.6891 |
| 37.5 | 165.0 | 12.55 | 0.6842 |
| 37.5 | 195.0 | 12.5 | 0.6721 |
| 37.5 | 225.0 | 11.16 | 0.6937 |
| 37.5 | 255.0 | 9.567 | 1.369 |
| 37.5 | 285.0 | 7.407 | 1.38 |
| 37.5 | 345.0 | 2.117 | 0.4929 |
| 52.5 | 45.0 | 5.374 | 0.4679 |
| 52.5 | 75.0 | 10.38 | 0.6033 |
| 52.5 | 105.0 | 13.3 | 1.426 |
| 52.5 | 135.0 | 14.8 | 1.904 |
| 52.5 | 165.0 | 11.83 | 0.682 |
| 52.5 | 195.0 | 11.49 | 0.6741 |
| 52.5 | 225.0 | 15.2 | 1.571 |
| 52.5 | 255.0 | 13.89 | 1.538 |
| 52.5 | 285.0 | 10.46 | 0.6233 |
| 52.5 | 315.0 | 5.489 | 0.4298 |
| 67.5 | 45.0 | 7.426 | 0.4513 |
| 67.5 | 75.0 | 12.34 | 0.5652 |
| 67.5 | 105.0 | 15.95 | 0.824 |
| 67.5 | 135.0 | 14.66 | 1.765 |
| 67.5 | 165.0 | 10.85 | 0.4997 |
| 67.5 | 195.0 | 9.676 | 0.453 |
| 67.5 | 225.0 | 14.21 | 2.008 |
| 67.5 | 255.0 | 15.58 | 0.7988 |
| 67.5 | 285.0 | 12.62 | 0.5593 |
| 67.5 | 315.0 | 7.809 | 0.444 |
| 82.5 | 45.0 | 10.34 | 1.648 |
| 82.5 | 75.0 | 13.25 | 0.5908 |
| 82.5 | 105.0 | 15.5 | 0.6608 |
| 82.5 | 135.0 | 13.91 | 1.193 |
| 82.5 | 165.0 | 9.829 | 0.4876 |
| 82.5 | 195.0 | 9.72 | 0.4816 |
| 82.5 | 225.0 | 11.35 | 1.202 |
| 82.5 | 255.0 | 15.74 | 0.6214 |
| 82.5 | 285.0 | 14.52 | 0.595 |
| 82.5 | 315.0 | 9.902 | 1.582 |
| 97.5 | 45.0 | 8.392 | 0.7128 |
| 97.5 | 75.0 | 15.15 | 0.9588 |
| 97.5 | 105.0 | 15.23 | 0.5919 |
| 97.5 | 135.0 | 12.89 | 1.081 |
| 97.5 | 165.0 | 9.687 | 0.6262 |
| 97.5 | 195.0 | 8.439 | 0.5152 |
| 97.5 | 225.0 | 11.87 | 1.302 |
| 97.5 | 255.0 | 15.41 | 0.5707 |
| 97.5 | 285.0 | 14.24 | 0.7933 |
| 97.5 | 315.0 | 8.719 | 0.7557 |
| 112.5 | 15.0 | 8.338 | 2.203 |
| 112.5 | 45.0 | 10.41 | 0.5897 |
| 112.5 | 75.0 | 11.85 | 1.083 |
| 112.5 | 105.0 | 14.82 | 0.6386 |
| 112.5 | 135.0 | 12.35 | 0.9932 |
| 112.5 | 165.0 | 8.873 | 0.9036 |
| 112.5 | 195.0 | 8.301 | 0.7197 |
| 112.5 | 225.0 | 10.79 | 0.9762 |
| 112.5 | 255.0 | 16.24 | 0.6409 |
| 112.5 | 285.0 | 12.64 | 1.066 |
| 112.5 | 315.0 | 10.88 | 0.6622 |
| 112.5 | 345.0 | 5.177 | 0.7198 |
| 127.5 | 15.0 | 5.566 | 0.8805 |
| 127.5 | 45.0 | 9.416 | 0.5876 |
| 127.5 | 75.0 | 11.73 | 1.104 |
| 127.5 | 105.0 | 13.17 | 1.116 |
| 127.5 | 135.0 | 13.24 | 3.02 |
| 127.5 | 225.0 | 12.94 | 1.381 |
| 127.5 | 255.0 | 13.15 | 1.055 |
| 127.5 | 285.0 | 10.77 | 0.9122 |
| 127.5 | 315.0 | 9.651 | 0.6424 |
| 127.5 | 345.0 | 6.883 | 1.483 |
| 142.5 | 15.0 | 8.906 | 1.115 |
| 142.5 | 45.0 | 10.89 | 1.294 |
| 142.5 | 75.0 | 14.47 | 1.028 |
| 142.5 | 285.0 | 13.76 | 1.186 |
| 142.5 | 315.0 | 13.2 | 1.534 |
| 142.5 | 345.0 | 7.686 | 1.278 |
| 157.5 | 15.0 | 11.62 | 2.729 |
| 157.5 | 345.0 | 9.92 | 2.008 |
Measurement comment:
Experiment comment: