Measurement E8M49
| 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: | 1.12 — 1.14 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 1.969 | 0.8589 |
| 7.5 | 45.0 | 6.423 | 2.148 |
| 7.5 | 75.0 | 2.913 | 1.031 |
| 7.5 | 105.0 | 2.434 | 0.6733 |
| 7.5 | 135.0 | 3.05 | 0.8367 |
| 7.5 | 165.0 | 4.133 | 1.421 |
| 7.5 | 195.0 | 5.035 | 1.46 |
| 7.5 | 225.0 | 4.469 | 1.572 |
| 7.5 | 255.0 | 5.598 | 1.351 |
| 7.5 | 345.0 | 1.996 | 1.316 |
| 22.5 | 15.0 | 2.981 | 0.9027 |
| 22.5 | 45.0 | 3.422 | 0.8223 |
| 22.5 | 75.0 | 3.551 | 0.6901 |
| 22.5 | 105.0 | 3.479 | 0.6299 |
| 22.5 | 135.0 | 3.805 | 0.4897 |
| 22.5 | 165.0 | 3.17 | 0.468 |
| 22.5 | 195.0 | 3.7 | 0.5228 |
| 22.5 | 225.0 | 3.729 | 0.4994 |
| 22.5 | 255.0 | 3.265 | 0.585 |
| 22.5 | 285.0 | 3.617 | 0.676 |
| 22.5 | 315.0 | 4.296 | 0.9564 |
| 22.5 | 345.0 | 3.529 | 1.284 |
| 37.5 | 15.0 | 2.151 | 0.5801 |
| 37.5 | 45.0 | 2.469 | 0.6507 |
| 37.5 | 75.0 | 2.842 | 0.5251 |
| 37.5 | 105.0 | 4.293 | 0.6274 |
| 37.5 | 135.0 | 4.132 | 0.504 |
| 37.5 | 165.0 | 4.245 | 0.4525 |
| 37.5 | 195.0 | 4.727 | 0.5435 |
| 37.5 | 225.0 | 3.339 | 0.4496 |
| 37.5 | 255.0 | 4.387 | 0.6684 |
| 37.5 | 285.0 | 4.666 | 1.869 |
| 37.5 | 315.0 | 2.715 | 0.9544 |
| 37.5 | 345.0 | 1.733 | 0.4758 |
| 52.5 | 15.0 | 1.475 | 0.5088 |
| 52.5 | 45.0 | 3.481 | 1.211 |
| 52.5 | 75.0 | 3.061 | 0.5078 |
| 52.5 | 105.0 | 3.816 | 0.5967 |
| 52.5 | 135.0 | 4.661 | 0.5859 |
| 52.5 | 165.0 | 4.179 | 0.4158 |
| 52.5 | 195.0 | 4.561 | 0.4384 |
| 52.5 | 225.0 | 4.704 | 0.5647 |
| 52.5 | 255.0 | 3.576 | 0.5547 |
| 52.5 | 285.0 | 4.671 | 0.9539 |
| 52.5 | 315.0 | 2.252 | 0.9685 |
| 52.5 | 345.0 | 1.024 | 0.3185 |
| 67.5 | 45.0 | 1.92 | 0.3437 |
| 67.5 | 75.0 | 4.388 | 0.4616 |
| 67.5 | 105.0 | 5.463 | 0.8907 |
| 67.5 | 135.0 | 4.532 | 0.6233 |
| 67.5 | 165.0 | 3.574 | 0.3671 |
| 67.5 | 195.0 | 4.45 | 0.494 |
| 67.5 | 225.0 | 5.081 | 0.8906 |
| 67.5 | 255.0 | 5.658 | 0.9075 |
| 67.5 | 285.0 | 3.703 | 0.4004 |
| 67.5 | 315.0 | 2.247 | 0.3335 |
| 82.5 | 45.0 | 2.183 | 0.308 |
| 82.5 | 75.0 | 3.961 | 0.3666 |
| 82.5 | 105.0 | 6.459 | 0.634 |
| 82.5 | 135.0 | 4.88 | 0.5943 |
| 82.5 | 165.0 | 3.732 | 0.3113 |
| 82.5 | 195.0 | 3.39 | 0.3022 |
| 82.5 | 225.0 | 5.291 | 0.8181 |
| 82.5 | 255.0 | 5.955 | 0.58 |
| 82.5 | 285.0 | 3.494 | 0.2962 |
| 82.5 | 315.0 | 2.716 | 0.349 |
| 97.5 | 45.0 | 3.143 | 0.8472 |
| 97.5 | 75.0 | 4.276 | 0.4147 |
| 97.5 | 105.0 | 5.371 | 0.5007 |
| 97.5 | 135.0 | 4.558 | 0.5416 |
| 97.5 | 165.0 | 3.284 | 0.3777 |
| 97.5 | 195.0 | 2.85 | 0.3045 |
| 97.5 | 225.0 | 4.254 | 0.5243 |
| 97.5 | 255.0 | 4.111 | 0.4198 |
| 97.5 | 285.0 | 4.235 | 0.3882 |
| 97.5 | 315.0 | 2.379 | 0.523 |
| 112.5 | 45.0 | 2.582 | 0.6664 |
| 112.5 | 75.0 | 4.629 | 0.7142 |
| 112.5 | 105.0 | 4.273 | 0.3787 |
| 112.5 | 135.0 | 3.989 | 0.9474 |
| 112.5 | 165.0 | 3.444 | 0.4251 |
| 112.5 | 195.0 | 2.989 | 0.4033 |
| 112.5 | 225.0 | 3.774 | 0.609 |
| 112.5 | 255.0 | 4.117 | 0.3508 |
| 112.5 | 285.0 | 4.419 | 0.5297 |
| 112.5 | 315.0 | 3.797 | 1.669 |
| 127.5 | 45.0 | 2.278 | 0.5046 |
| 127.5 | 75.0 | 6.401 | 2.392 |
| 127.5 | 105.0 | 6.208 | 0.8529 |
| 127.5 | 135.0 | 4.5 | 1.188 |
| 127.5 | 165.0 | 3.95 | 1.106 |
| 127.5 | 195.0 | 3.703 | 1.014 |
| 127.5 | 225.0 | 5.223 | 1.591 |
| 127.5 | 255.0 | 5.108 | 0.5845 |
| 127.5 | 285.0 | 5.065 | 1.118 |
| 127.5 | 315.0 | 6.443 | 3.216 |
| 142.5 | 45.0 | 4.849 | 1.826 |
| 142.5 | 75.0 | 6.203 | 2.484 |
| 142.5 | 105.0 | 4.8 | 1.292 |
| 142.5 | 255.0 | 4.136 | 1.254 |
| 142.5 | 315.0 | 4.888 | 2.186 |
Measurement comment:
Experiment comment: