Measurement E8M17
| 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: | 1.42 — 1.44 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 13.29 | 1.065 |
| 7.5 | 45.0 | 12.28 | 1.14 |
| 7.5 | 75.0 | 12.32 | 1.293 |
| 7.5 | 105.0 | 12.77 | 1.299 |
| 7.5 | 135.0 | 9.633 | 0.9676 |
| 7.5 | 165.0 | 7.27 | 0.8072 |
| 7.5 | 195.0 | 9.439 | 0.9355 |
| 7.5 | 225.0 | 9.483 | 0.886 |
| 7.5 | 255.0 | 9.892 | 1.002 |
| 7.5 | 285.0 | 13.72 | 1.608 |
| 7.5 | 315.0 | 14.6 | 1.421 |
| 7.5 | 345.0 | 13.95 | 1.112 |
| 22.5 | 45.0 | 6.906 | 1.406 |
| 22.5 | 75.0 | 8.135 | 1.295 |
| 22.5 | 105.0 | 11.66 | 2.281 |
| 22.5 | 135.0 | 7.112 | 0.6168 |
| 22.5 | 165.0 | 5.625 | 0.6588 |
| 22.5 | 195.0 | 6.585 | 0.9294 |
| 22.5 | 225.0 | 6.651 | 0.6419 |
| 22.5 | 255.0 | 9.644 | 1.766 |
| 22.5 | 285.0 | 13.53 | 3.268 |
| 22.5 | 315.0 | 18.04 | 5.87 |
| 37.5 | 45.0 | 7.948 | 0.4506 |
| 37.5 | 75.0 | 9.969 | 0.5049 |
| 37.5 | 105.0 | 9.461 | 1.362 |
| 37.5 | 285.0 | 10.3 | 0.492 |
| 37.5 | 315.0 | 8.437 | 0.508 |
| 52.5 | 45.0 | 5.854 | 0.6774 |
| 52.5 | 75.0 | 11.18 | 1.509 |
| 52.5 | 105.0 | 8.426 | 0.9852 |
| 52.5 | 135.0 | 5.407 | 0.4335 |
| 52.5 | 165.0 | 3.014 | 0.1614 |
| 52.5 | 195.0 | 2.775 | 0.1538 |
| 52.5 | 225.0 | 5.83 | 0.4173 |
| 52.5 | 285.0 | 8.538 | 0.5129 |
| 52.5 | 315.0 | 6.25 | 0.9594 |
| 67.5 | 15.0 | 2.048 | 0.294 |
| 67.5 | 45.0 | 5.436 | 0.585 |
| 67.5 | 75.0 | 8.115 | 0.7911 |
| 67.5 | 105.0 | 6.724 | 0.2686 |
| 67.5 | 135.0 | 4.666 | 0.3196 |
| 67.5 | 165.0 | 2.61 | 0.1474 |
| 67.5 | 195.0 | 2.249 | 0.1335 |
| 67.5 | 225.0 | 5.464 | 0.3805 |
| 67.5 | 255.0 | 6.768 | 0.2537 |
| 67.5 | 285.0 | 8.335 | 1.43 |
| 67.5 | 315.0 | 4.849 | 0.6068 |
| 67.5 | 345.0 | 2.217 | 0.3522 |
| 82.5 | 15.0 | 2.454 | 0.9346 |
| 82.5 | 45.0 | 3.463 | 0.5504 |
| 82.5 | 75.0 | 5.311 | 0.3341 |
| 82.5 | 105.0 | 5.448 | 0.2283 |
| 82.5 | 135.0 | 3.744 | 0.2728 |
| 82.5 | 165.0 | 2.003 | 0.1569 |
| 82.5 | 195.0 | 2.009 | 0.159 |
| 82.5 | 225.0 | 3.5 | 0.285 |
| 82.5 | 255.0 | 5.448 | 0.2413 |
| 82.5 | 285.0 | 4.679 | 0.3149 |
| 82.5 | 315.0 | 3.121 | 0.4195 |
| 82.5 | 345.0 | 3.346 | 1.632 |
| 97.5 | 15.0 | 0.8776 | 0.1361 |
| 97.5 | 45.0 | 2.035 | 0.1413 |
| 97.5 | 75.0 | 3.05 | 0.251 |
| 97.5 | 105.0 | 3.685 | 0.1933 |
| 97.5 | 135.0 | 2.695 | 0.3153 |
| 97.5 | 165.0 | 1.485 | 0.1409 |
| 97.5 | 195.0 | 1.465 | 0.1288 |
| 97.5 | 225.0 | 3.071 | 0.2561 |
| 97.5 | 255.0 | 3.718 | 0.2004 |
| 97.5 | 285.0 | 3.288 | 0.2695 |
| 97.5 | 315.0 | 2.046 | 0.14 |
| 97.5 | 345.0 | 1.183 | 0.2941 |
| 112.5 | 15.0 | 0.5206 | 0.08765 |
| 112.5 | 45.0 | 1.553 | 0.1372 |
| 112.5 | 75.0 | 2.413 | 0.2463 |
| 112.5 | 105.0 | 2.282 | 0.1652 |
| 112.5 | 135.0 | 1.705 | 0.1504 |
| 112.5 | 165.0 | 1.136 | 0.1265 |
| 112.5 | 195.0 | 2.018 | 0.975 |
| 112.5 | 225.0 | 1.471 | 0.1606 |
| 112.5 | 255.0 | 2.464 | 0.1503 |
| 112.5 | 285.0 | 2.05 | 0.2119 |
| 112.5 | 315.0 | 1.729 | 0.1715 |
| 112.5 | 345.0 | 0.6116 | 0.1146 |
| 127.5 | 15.0 | 0.3562 | 0.06434 |
| 127.5 | 45.0 | 0.7602 | 0.09433 |
| 127.5 | 75.0 | 1.149 | 0.1241 |
| 127.5 | 105.0 | 1.437 | 0.2051 |
| 127.5 | 135.0 | 1.144 | 0.1731 |
| 127.5 | 195.0 | 0.7331 | 0.1318 |
| 127.5 | 225.0 | 1.134 | 0.141 |
| 127.5 | 255.0 | 1.77 | 0.2631 |
| 127.5 | 285.0 | 1.505 | 0.154 |
| 127.5 | 315.0 | 0.9314 | 0.116 |
| 127.5 | 345.0 | 0.5696 | 0.1505 |
| 142.5 | 15.0 | 0.2207 | 0.04963 |
| 142.5 | 45.0 | 0.4666 | 0.07593 |
| 142.5 | 75.0 | 0.7343 | 0.09002 |
| 142.5 | 255.0 | 1.719 | 1.154 |
| 142.5 | 285.0 | 0.9079 | 0.127 |
| 142.5 | 315.0 | 0.6131 | 0.1394 |
| 142.5 | 345.0 | 0.4375 | 0.09089 |
| 157.5 | 15.0 | 0.2552 | 0.07236 |
| 157.5 | 345.0 | 0.3364 | 0.1075 |
Measurement comment:
Experiment comment: