Measurement E8M24
| 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: | 1.56 — 1.58 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 45.0 | 11.5 | 5.042 |
| 7.5 | 75.0 | 25.96 | 17.9 |
| 7.5 | 105.0 | 8.932 | 1.447 |
| 7.5 | 135.0 | 17.55 | 2.121 |
| 7.5 | 165.0 | 10.31 | 1.035 |
| 7.5 | 195.0 | 10.49 | 1.107 |
| 7.5 | 225.0 | 9.366 | 1.228 |
| 7.5 | 255.0 | 12.41 | 2.434 |
| 7.5 | 285.0 | 14.5 | 4.403 |
| 7.5 | 315.0 | 16.99 | 8.647 |
| 22.5 | 75.0 | 9.184 | 1.79 |
| 22.5 | 105.0 | 9.097 | 3.148 |
| 22.5 | 135.0 | 7.019 | 0.8672 |
| 22.5 | 165.0 | 5.957 | 0.4792 |
| 22.5 | 195.0 | 4.861 | 0.3981 |
| 22.5 | 225.0 | 7.882 | 1.209 |
| 22.5 | 255.0 | 5.904 | 1.573 |
| 22.5 | 285.0 | 9.138 | 2.947 |
| 37.5 | 75.0 | 5.258 | 0.3186 |
| 37.5 | 105.0 | 5.459 | 0.4638 |
| 37.5 | 135.0 | 4.95 | 0.7423 |
| 37.5 | 165.0 | 2.802 | 0.2763 |
| 37.5 | 195.0 | 3.274 | 0.3321 |
| 37.5 | 225.0 | 5.531 | 0.8317 |
| 37.5 | 255.0 | 5.341 | 0.4034 |
| 37.5 | 285.0 | 4.901 | 0.3007 |
| 52.5 | 45.0 | 3.309 | 0.5105 |
| 52.5 | 75.0 | 3.532 | 0.3366 |
| 52.5 | 105.0 | 3.753 | 0.3322 |
| 52.5 | 255.0 | 3.418 | 0.4174 |
| 52.5 | 285.0 | 3.835 | 0.3718 |
| 52.5 | 315.0 | 1.846 | 0.2881 |
| 67.5 | 15.0 | 1.555 | 0.7366 |
| 67.5 | 45.0 | 1.276 | 0.1315 |
| 67.5 | 135.0 | 1.535 | 0.2045 |
| 67.5 | 165.0 | 1.52 | 0.1535 |
| 67.5 | 195.0 | 1.252 | 0.1149 |
| 67.5 | 225.0 | 1.587 | 0.1795 |
| 67.5 | 285.0 | 2.554 | 0.7083 |
| 67.5 | 315.0 | 1.305 | 0.1429 |
| 67.5 | 345.0 | 0.5634 | 0.3 |
| 82.5 | 45.0 | 1.27 | 0.5059 |
| 82.5 | 75.0 | 2.215 | 0.8115 |
| 82.5 | 105.0 | 1.041 | 0.09182 |
| 82.5 | 135.0 | 0.8912 | 0.112 |
| 82.5 | 165.0 | 0.9129 | 0.1095 |
| 82.5 | 195.0 | 0.9154 | 0.09964 |
| 82.5 | 225.0 | 1.093 | 0.1394 |
| 82.5 | 255.0 | 1.325 | 0.1072 |
| 82.5 | 285.0 | 1.273 | 0.2137 |
| 82.5 | 315.0 | 0.7838 | 0.2175 |
| 97.5 | 15.0 | 0.7093 | 0.3663 |
| 97.5 | 45.0 | 0.9346 | 0.09708 |
| 97.5 | 75.0 | 1.515 | 0.1748 |
| 97.5 | 105.0 | 1.333 | 0.1153 |
| 97.5 | 135.0 | 0.8559 | 0.09532 |
| 97.5 | 165.0 | 0.7974 | 0.1209 |
| 97.5 | 195.0 | 0.9987 | 0.1382 |
| 97.5 | 225.0 | 1.04 | 0.1264 |
| 97.5 | 255.0 | 1.273 | 0.1167 |
| 97.5 | 285.0 | 1.386 | 0.1692 |
| 97.5 | 315.0 | 1.173 | 0.1461 |
| 97.5 | 345.0 | 0.774 | 0.1561 |
| 112.5 | 15.0 | 0.9716 | 0.1595 |
| 112.5 | 45.0 | 1.871 | 0.2131 |
| 112.5 | 75.0 | 1.884 | 0.1763 |
| 112.5 | 105.0 | 1.905 | 0.1735 |
| 112.5 | 135.0 | 1.221 | 0.1243 |
| 112.5 | 165.0 | 1.026 | 0.1209 |
| 112.5 | 195.0 | 0.9625 | 0.1671 |
| 112.5 | 225.0 | 1.301 | 0.1368 |
| 112.5 | 255.0 | 2.114 | 0.1731 |
| 112.5 | 285.0 | 1.86 | 0.2082 |
| 112.5 | 315.0 | 2.017 | 0.2768 |
| 112.5 | 345.0 | 1.208 | 0.1776 |
| 127.5 | 15.0 | 1.54 | 0.2078 |
| 127.5 | 45.0 | 1.581 | 0.1794 |
| 127.5 | 75.0 | 1.737 | 0.1705 |
| 127.5 | 105.0 | 1.997 | 0.2015 |
| 127.5 | 135.0 | 1.307 | 0.1713 |
| 127.5 | 165.0 | 1.139 | 0.2039 |
| 127.5 | 195.0 | 1.052 | 0.2159 |
| 127.5 | 225.0 | 1.228 | 0.1428 |
| 127.5 | 255.0 | 1.879 | 0.2328 |
| 127.5 | 285.0 | 1.781 | 0.1869 |
| 127.5 | 315.0 | 1.567 | 0.1894 |
| 127.5 | 345.0 | 1.367 | 0.174 |
| 142.5 | 15.0 | 2.878 | 1.399 |
| 142.5 | 45.0 | 1.278 | 0.3089 |
| 142.5 | 75.0 | 1.814 | 0.2489 |
| 142.5 | 105.0 | 1.679 | 0.5181 |
| 142.5 | 225.0 | 0.9101 | 0.2877 |
| 142.5 | 285.0 | 1.887 | 0.3065 |
| 142.5 | 315.0 | 2.362 | 0.6314 |
| 142.5 | 345.0 | 1.404 | 0.2011 |
| 157.5 | 15.0 | 1.949 | 0.6364 |
| 157.5 | 345.0 | 1.116 | 0.3474 |
Measurement comment:
Experiment comment: