Measurement E8M44
| Experiment: | E89-038 CLAS experiment | |
|---|---|---|
| Year: | 1999 | |
| Spokespersons: | V. Burkert, R. Minehart | |
| Reaction: | ep → π+n | |
| Polarization: | none | |
| Quantity: | dσ/dΩ | |
| Q2: | 0.35 — 0.45 GeV2 | |
| W: | 1.48 — 1.5 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 8.461 | 0.8569 |
| 7.5 | 45.0 | 14.66 | 1.74 |
| 7.5 | 75.0 | 7.594 | 0.9762 |
| 7.5 | 105.0 | 7.301 | 0.7762 |
| 7.5 | 135.0 | 6.944 | 0.7246 |
| 7.5 | 165.0 | 6.372 | 0.6248 |
| 7.5 | 195.0 | 7.859 | 0.7378 |
| 7.5 | 225.0 | 8.411 | 0.9409 |
| 7.5 | 255.0 | 7.196 | 0.8092 |
| 7.5 | 285.0 | 8.961 | 1.309 |
| 7.5 | 315.0 | 9.458 | 1.241 |
| 7.5 | 345.0 | 9.514 | 0.9516 |
| 22.5 | 45.0 | 11.55 | 4.862 |
| 22.5 | 75.0 | 9.666 | 1.93 |
| 22.5 | 105.0 | 6.591 | 0.7454 |
| 22.5 | 135.0 | 5.53 | 0.4678 |
| 22.5 | 165.0 | 3.708 | 0.2825 |
| 22.5 | 195.0 | 4.155 | 0.3095 |
| 22.5 | 225.0 | 6.301 | 0.5204 |
| 22.5 | 255.0 | 8.138 | 0.9347 |
| 22.5 | 285.0 | 6.747 | 0.9084 |
| 37.5 | 45.0 | 8.044 | 1.672 |
| 37.5 | 75.0 | 7.751 | 0.3448 |
| 37.5 | 105.0 | 7.513 | 0.5226 |
| 37.5 | 135.0 | 5.283 | 0.6319 |
| 37.5 | 225.0 | 6.637 | 1.791 |
| 37.5 | 255.0 | 7.029 | 0.5103 |
| 37.5 | 285.0 | 8.21 | 0.3654 |
| 52.5 | 45.0 | 6.583 | 0.6037 |
| 52.5 | 75.0 | 8.198 | 0.3519 |
| 52.5 | 165.0 | 3.15 | 0.2996 |
| 52.5 | 195.0 | 3.2 | 0.3118 |
| 52.5 | 285.0 | 7.83 | 0.3509 |
| 52.5 | 315.0 | 5.903 | 0.6913 |
| 67.5 | 15.0 | 3.415 | 0.4825 |
| 67.5 | 45.0 | 5.1 | 0.3098 |
| 67.5 | 75.0 | 6.715 | 0.7007 |
| 67.5 | 105.0 | 7.082 | 0.438 |
| 67.5 | 135.0 | 5.097 | 0.2853 |
| 67.5 | 165.0 | 2.812 | 0.1504 |
| 67.5 | 195.0 | 2.771 | 0.1533 |
| 67.5 | 225.0 | 5.223 | 0.2747 |
| 67.5 | 255.0 | 6.424 | 0.5605 |
| 67.5 | 285.0 | 6.482 | 0.8263 |
| 67.5 | 315.0 | 4.859 | 0.3119 |
| 67.5 | 345.0 | 4.119 | 0.5351 |
| 82.5 | 15.0 | 1.712 | 0.2716 |
| 82.5 | 45.0 | 4.467 | 0.6198 |
| 82.5 | 75.0 | 6.106 | 0.485 |
| 82.5 | 105.0 | 5.915 | 0.2383 |
| 82.5 | 135.0 | 4.807 | 0.2845 |
| 82.5 | 165.0 | 3.026 | 0.1708 |
| 82.5 | 195.0 | 2.896 | 0.1686 |
| 82.5 | 225.0 | 4.353 | 0.2443 |
| 82.5 | 255.0 | 6.358 | 0.2364 |
| 82.5 | 285.0 | 5.785 | 0.4568 |
| 82.5 | 315.0 | 4.273 | 1.193 |
| 82.5 | 345.0 | 2.653 | 0.5528 |
| 97.5 | 45.0 | 3.126 | 0.1791 |
| 97.5 | 75.0 | 5.66 | 0.322 |
| 97.5 | 105.0 | 4.693 | 0.2148 |
| 97.5 | 135.0 | 4.56 | 0.2909 |
| 97.5 | 165.0 | 3.046 | 0.2255 |
| 97.5 | 195.0 | 2.448 | 0.1658 |
| 97.5 | 225.0 | 3.77 | 0.24 |
| 97.5 | 255.0 | 5.203 | 0.2282 |
| 97.5 | 285.0 | 4.568 | 0.2679 |
| 97.5 | 315.0 | 3.113 | 0.1751 |
| 97.5 | 345.0 | 1.707 | 0.6239 |
| 112.5 | 15.0 | 1.151 | 0.1351 |
| 112.5 | 45.0 | 2.704 | 0.1968 |
| 112.5 | 75.0 | 3.836 | 0.2449 |
| 112.5 | 105.0 | 4.196 | 0.2437 |
| 112.5 | 135.0 | 3.681 | 0.2255 |
| 112.5 | 165.0 | 2.598 | 0.1886 |
| 112.5 | 195.0 | 2.646 | 0.1761 |
| 112.5 | 225.0 | 3.683 | 0.2411 |
| 112.5 | 255.0 | 4.482 | 0.2388 |
| 112.5 | 285.0 | 4.316 | 0.3035 |
| 112.5 | 315.0 | 3.138 | 0.2323 |
| 112.5 | 345.0 | 1.19 | 0.1414 |
| 127.5 | 15.0 | 1.316 | 0.1588 |
| 127.5 | 45.0 | 2.093 | 0.1675 |
| 127.5 | 75.0 | 2.879 | 0.2169 |
| 127.5 | 105.0 | 4.027 | 0.2905 |
| 127.5 | 135.0 | 3.08 | 0.2654 |
| 127.5 | 165.0 | 1.795 | 0.1859 |
| 127.5 | 195.0 | 2.108 | 0.2191 |
| 127.5 | 225.0 | 2.985 | 0.2516 |
| 127.5 | 255.0 | 3.182 | 0.2311 |
| 127.5 | 285.0 | 3.075 | 0.2236 |
| 127.5 | 315.0 | 2.118 | 0.1767 |
| 127.5 | 345.0 | 1.171 | 0.1567 |
| 142.5 | 15.0 | 0.7216 | 0.133 |
| 142.5 | 45.0 | 1.507 | 0.1882 |
| 142.5 | 75.0 | 2.038 | 0.198 |
| 142.5 | 105.0 | 2.036 | 0.2552 |
| 142.5 | 135.0 | 2.025 | 0.3398 |
| 142.5 | 225.0 | 2.642 | 0.6674 |
| 142.5 | 255.0 | 2.891 | 0.9435 |
| 142.5 | 285.0 | 1.823 | 0.2029 |
| 142.5 | 315.0 | 1.641 | 0.274 |
| 142.5 | 345.0 | 0.8115 | 0.149 |
| 157.5 | 15.0 | 0.6831 | 0.2139 |
| 157.5 | 345.0 | 0.9274 | 0.3936 |
Measurement comment:
Experiment comment: