Measurement E8M37
| 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: | 1.34 — 1.36 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 10.8 | 1.039 |
| 7.5 | 45.0 | 13.69 | 1.574 |
| 7.5 | 75.0 | 16.16 | 1.768 |
| 7.5 | 105.0 | 14.57 | 1.61 |
| 7.5 | 135.0 | 15.09 | 2.207 |
| 7.5 | 165.0 | 15.47 | 1.885 |
| 7.5 | 195.0 | 12.43 | 1.548 |
| 7.5 | 225.0 | 10.36 | 1.111 |
| 7.5 | 255.0 | 10.44 | 1.205 |
| 7.5 | 285.0 | 14.38 | 1.641 |
| 7.5 | 315.0 | 12.7 | 1.502 |
| 7.5 | 345.0 | 12.81 | 1.283 |
| 22.5 | 15.0 | 13.4 | 1.106 |
| 22.5 | 45.0 | 10.49 | 2.042 |
| 22.5 | 75.0 | 17.58 | 2.103 |
| 22.5 | 105.0 | 10.8 | 1.329 |
| 22.5 | 255.0 | 13.6 | 1.944 |
| 22.5 | 285.0 | 8.961 | 1.262 |
| 22.5 | 315.0 | 13.68 | 3.224 |
| 22.5 | 345.0 | 11.99 | 1.284 |
| 37.5 | 45.0 | 9.203 | 0.9251 |
| 37.5 | 75.0 | 11.06 | 0.9665 |
| 37.5 | 135.0 | 7.2 | 0.5419 |
| 37.5 | 165.0 | 6.401 | 0.3566 |
| 37.5 | 195.0 | 6.326 | 0.3602 |
| 37.5 | 225.0 | 8.81 | 0.9888 |
| 37.5 | 285.0 | 9.52 | 0.8092 |
| 37.5 | 315.0 | 11.07 | 1.203 |
| 52.5 | 45.0 | 5.967 | 0.4872 |
| 52.5 | 105.0 | 7.822 | 0.5193 |
| 52.5 | 135.0 | 6.464 | 0.4456 |
| 52.5 | 165.0 | 4.791 | 0.2593 |
| 52.5 | 195.0 | 5.197 | 0.2757 |
| 52.5 | 225.0 | 6.258 | 0.4303 |
| 52.5 | 255.0 | 8.709 | 0.7751 |
| 52.5 | 315.0 | 6.067 | 0.4001 |
| 67.5 | 45.0 | 5.574 | 1.015 |
| 67.5 | 75.0 | 7.009 | 1.066 |
| 67.5 | 105.0 | 6.18 | 0.319 |
| 67.5 | 135.0 | 5.318 | 0.3845 |
| 67.5 | 165.0 | 3.691 | 0.2001 |
| 67.5 | 195.0 | 3.734 | 0.2121 |
| 67.5 | 225.0 | 5.473 | 0.4094 |
| 67.5 | 255.0 | 6.605 | 0.3035 |
| 67.5 | 285.0 | 6.695 | 0.9458 |
| 67.5 | 315.0 | 5.334 | 0.7524 |
| 82.5 | 15.0 | 2.308 | 0.7518 |
| 82.5 | 45.0 | 3.476 | 0.6004 |
| 82.5 | 75.0 | 4.552 | 0.2874 |
| 82.5 | 105.0 | 5.407 | 0.2948 |
| 82.5 | 135.0 | 4.576 | 0.3441 |
| 82.5 | 165.0 | 3.051 | 0.2286 |
| 82.5 | 195.0 | 2.912 | 0.2184 |
| 82.5 | 225.0 | 3.887 | 0.3216 |
| 82.5 | 255.0 | 4.749 | 0.2337 |
| 82.5 | 285.0 | 4.613 | 0.2742 |
| 82.5 | 315.0 | 4.159 | 1.286 |
| 82.5 | 345.0 | 1.821 | 0.4612 |
| 97.5 | 45.0 | 2.01 | 0.1503 |
| 97.5 | 75.0 | 3.196 | 0.2667 |
| 97.5 | 105.0 | 4.015 | 0.2489 |
| 97.5 | 135.0 | 3.068 | 0.247 |
| 97.5 | 165.0 | 2.799 | 0.2094 |
| 97.5 | 195.0 | 2.321 | 0.1598 |
| 97.5 | 225.0 | 3.268 | 0.2789 |
| 97.5 | 255.0 | 3.635 | 0.2022 |
| 97.5 | 285.0 | 3.708 | 0.3185 |
| 97.5 | 315.0 | 2.154 | 0.1685 |
| 97.5 | 345.0 | 1.111 | 0.4308 |
| 112.5 | 15.0 | 0.7354 | 0.1226 |
| 112.5 | 45.0 | 1.572 | 0.1497 |
| 112.5 | 75.0 | 2.68 | 0.2937 |
| 112.5 | 105.0 | 2.507 | 0.1805 |
| 112.5 | 135.0 | 2.194 | 0.2008 |
| 112.5 | 165.0 | 1.926 | 0.197 |
| 112.5 | 195.0 | 1.8 | 0.1795 |
| 112.5 | 225.0 | 2.375 | 0.2142 |
| 112.5 | 255.0 | 2.433 | 0.1678 |
| 112.5 | 285.0 | 2.195 | 0.2368 |
| 112.5 | 315.0 | 1.257 | 0.1392 |
| 112.5 | 345.0 | 0.7609 | 0.1322 |
| 127.5 | 15.0 | 0.3131 | 0.07581 |
| 127.5 | 45.0 | 0.8332 | 0.1043 |
| 127.5 | 75.0 | 1.121 | 0.1333 |
| 127.5 | 105.0 | 1.383 | 0.1588 |
| 127.5 | 135.0 | 1.593 | 0.2623 |
| 127.5 | 165.0 | 1.304 | 0.2347 |
| 127.5 | 195.0 | 1.178 | 0.3277 |
| 127.5 | 225.0 | 1.388 | 0.1808 |
| 127.5 | 255.0 | 1.563 | 0.171 |
| 127.5 | 285.0 | 1.199 | 0.1457 |
| 127.5 | 315.0 | 0.8924 | 0.1369 |
| 127.5 | 345.0 | 0.698 | 0.191 |
| 142.5 | 15.0 | 0.3661 | 0.07513 |
| 142.5 | 45.0 | 0.4032 | 0.08989 |
| 142.5 | 75.0 | 1.016 | 0.202 |
| 142.5 | 105.0 | 1.267 | 0.4417 |
| 142.5 | 255.0 | 0.9128 | 0.2772 |
| 142.5 | 285.0 | 0.8608 | 0.1666 |
| 142.5 | 315.0 | 0.588 | 0.1164 |
| 142.5 | 345.0 | 0.304 | 0.1961 |
| 157.5 | 15.0 | 0.5239 | 0.1847 |
| 157.5 | 345.0 | 0.3951 | 0.1411 |
Measurement comment:
Experiment comment: