Measurement E8M2
| 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: | 1.12 — 1.14 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 5.764 | 1.163 |
| 7.5 | 45.0 | 4.582 | 0.9815 |
| 7.5 | 75.0 | 8.573 | 1.706 |
| 7.5 | 105.0 | 6.917 | 1.453 |
| 7.5 | 135.0 | 4.866 | 0.9562 |
| 7.5 | 165.0 | 6.476 | 1.249 |
| 7.5 | 195.0 | 7.405 | 1.873 |
| 7.5 | 225.0 | 9.343 | 2.345 |
| 7.5 | 255.0 | 6.814 | 1.398 |
| 7.5 | 285.0 | 4.937 | 1.104 |
| 7.5 | 315.0 | 7.451 | 2.541 |
| 7.5 | 345.0 | 4.171 | 1.011 |
| 22.5 | 15.0 | 4.405 | 0.639 |
| 22.5 | 45.0 | 4.336 | 0.569 |
| 22.5 | 75.0 | 5.18 | 0.6376 |
| 22.5 | 105.0 | 6.012 | 0.6157 |
| 22.5 | 135.0 | 7.291 | 0.7579 |
| 22.5 | 165.0 | 7.534 | 0.8016 |
| 22.5 | 195.0 | 8.33 | 0.9668 |
| 22.5 | 225.0 | 7.814 | 0.8495 |
| 22.5 | 255.0 | 6.79 | 0.6939 |
| 22.5 | 285.0 | 6.007 | 0.7058 |
| 22.5 | 315.0 | 4.811 | 0.6551 |
| 22.5 | 345.0 | 3.274 | 0.5243 |
| 37.5 | 15.0 | 2.541 | 0.4198 |
| 37.5 | 45.0 | 2.824 | 1.492 |
| 37.5 | 75.0 | 7.213 | 2.482 |
| 37.5 | 105.0 | 7.289 | 0.9977 |
| 37.5 | 135.0 | 7.394 | 0.6708 |
| 37.5 | 165.0 | 6.878 | 0.6351 |
| 37.5 | 195.0 | 8.03 | 0.694 |
| 37.5 | 225.0 | 7.32 | 0.6417 |
| 37.5 | 255.0 | 6.953 | 1.213 |
| 37.5 | 285.0 | 10.19 | 4.623 |
| 37.5 | 315.0 | 2.829 | 1.302 |
| 37.5 | 345.0 | 2.635 | 0.605 |
| 52.5 | 15.0 | 1.149 | 0.3943 |
| 52.5 | 45.0 | 3.748 | 1.096 |
| 52.5 | 75.0 | 5.127 | 0.6289 |
| 52.5 | 135.0 | 9.161 | 1.128 |
| 52.5 | 165.0 | 6.726 | 0.5796 |
| 52.5 | 195.0 | 7.275 | 0.5868 |
| 52.5 | 225.0 | 6.786 | 0.7779 |
| 52.5 | 285.0 | 5.659 | 0.8659 |
| 52.5 | 315.0 | 4.157 | 1.057 |
| 67.5 | 45.0 | 3.93 | 0.4115 |
| 67.5 | 75.0 | 5.905 | 0.4455 |
| 67.5 | 105.0 | 7.515 | 0.858 |
| 67.5 | 135.0 | 8.225 | 1.164 |
| 67.5 | 165.0 | 7.249 | 0.4544 |
| 67.5 | 195.0 | 6.656 | 0.4171 |
| 67.5 | 225.0 | 7.119 | 1.201 |
| 67.5 | 255.0 | 7.256 | 1.111 |
| 67.5 | 285.0 | 6.731 | 0.5185 |
| 67.5 | 315.0 | 2.867 | 0.3283 |
| 82.5 | 45.0 | 3.363 | 0.4028 |
| 82.5 | 75.0 | 5.952 | 0.4858 |
| 82.5 | 105.0 | 8.147 | 0.5841 |
| 82.5 | 135.0 | 7.681 | 1.505 |
| 82.5 | 165.0 | 5.887 | 0.4557 |
| 82.5 | 195.0 | 5.849 | 0.4405 |
| 82.5 | 225.0 | 5.737 | 0.8511 |
| 82.5 | 255.0 | 8.242 | 0.5552 |
| 82.5 | 285.0 | 6.081 | 0.4666 |
| 82.5 | 315.0 | 4.251 | 0.4278 |
| 97.5 | 45.0 | 3.661 | 1.503 |
| 97.5 | 75.0 | 7.981 | 0.712 |
| 97.5 | 105.0 | 7.086 | 0.4622 |
| 97.5 | 135.0 | 6.28 | 1.018 |
| 97.5 | 165.0 | 5.958 | 0.5085 |
| 97.5 | 195.0 | 5.182 | 0.4298 |
| 97.5 | 225.0 | 7.366 | 1.936 |
| 97.5 | 255.0 | 8.206 | 0.5041 |
| 97.5 | 285.0 | 6.534 | 0.5127 |
| 97.5 | 315.0 | 4.382 | 1.377 |
| 112.5 | 45.0 | 3.29 | 0.6064 |
| 112.5 | 75.0 | 9.072 | 1.741 |
| 112.5 | 105.0 | 8.858 | 0.6753 |
| 112.5 | 135.0 | 5.402 | 0.7103 |
| 112.5 | 165.0 | 7.458 | 0.8388 |
| 112.5 | 195.0 | 6.7 | 1.429 |
| 112.5 | 225.0 | 8.468 | 3.12 |
| 112.5 | 255.0 | 8.091 | 0.5552 |
| 112.5 | 285.0 | 8.106 | 1.664 |
| 112.5 | 315.0 | 5.657 | 1.266 |
| 127.5 | 45.0 | 7.207 | 1.016 |
| 127.5 | 75.0 | 7.954 | 1.643 |
| 127.5 | 105.0 | 10.64 | 1.445 |
| 127.5 | 255.0 | 8.813 | 1.001 |
| 127.5 | 315.0 | 7.149 | 1.146 |
| 142.5 | 45.0 | 4.184 | 0.9885 |
| 142.5 | 75.0 | 8.916 | 2.823 |
| 142.5 | 315.0 | 8.568 | 2.792 |
Measurement comment:
Experiment comment: