Measurement E8M41
| 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: | 1.42 — 1.44 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 8.565 | 0.809 |
| 7.5 | 45.0 | 9.203 | 0.9942 |
| 7.5 | 75.0 | 10.01 | 1.195 |
| 7.5 | 105.0 | 7.837 | 0.8855 |
| 7.5 | 135.0 | 6.673 | 0.6749 |
| 7.5 | 165.0 | 8.433 | 0.8812 |
| 7.5 | 195.0 | 7.589 | 0.7596 |
| 7.5 | 225.0 | 6.185 | 0.6928 |
| 7.5 | 255.0 | 8.303 | 1.035 |
| 7.5 | 285.0 | 8.026 | 0.9997 |
| 7.5 | 315.0 | 8.591 | 0.9406 |
| 7.5 | 345.0 | 9.361 | 0.886 |
| 22.5 | 45.0 | 8.92 | 1.322 |
| 22.5 | 75.0 | 8.242 | 1.107 |
| 22.5 | 105.0 | 6.252 | 0.6558 |
| 22.5 | 135.0 | 7.191 | 0.6436 |
| 22.5 | 165.0 | 4.951 | 0.4502 |
| 22.5 | 195.0 | 5.103 | 0.473 |
| 22.5 | 225.0 | 6.227 | 0.5627 |
| 22.5 | 255.0 | 8.695 | 0.9551 |
| 22.5 | 285.0 | 8.845 | 1.116 |
| 22.5 | 315.0 | 11.84 | 3.144 |
| 37.5 | 45.0 | 7.674 | 0.5064 |
| 37.5 | 75.0 | 8.312 | 0.4625 |
| 37.5 | 105.0 | 6.008 | 1.075 |
| 37.5 | 255.0 | 7.113 | 1.597 |
| 37.5 | 285.0 | 7.753 | 0.4285 |
| 37.5 | 315.0 | 7.25 | 0.4779 |
| 52.5 | 45.0 | 5.473 | 0.5361 |
| 52.5 | 75.0 | 7.457 | 0.451 |
| 52.5 | 135.0 | 4.575 | 0.4055 |
| 52.5 | 165.0 | 2.847 | 0.166 |
| 52.5 | 195.0 | 2.879 | 0.1705 |
| 52.5 | 225.0 | 4.405 | 0.4062 |
| 52.5 | 285.0 | 6.965 | 0.4497 |
| 52.5 | 315.0 | 6.256 | 0.8786 |
| 67.5 | 15.0 | 3.194 | 1.108 |
| 67.5 | 45.0 | 4.8 | 0.4038 |
| 67.5 | 105.0 | 6.325 | 0.3007 |
| 67.5 | 135.0 | 3.999 | 0.2689 |
| 67.5 | 165.0 | 2.732 | 0.1702 |
| 67.5 | 195.0 | 2.407 | 0.1473 |
| 67.5 | 225.0 | 4.485 | 0.3046 |
| 67.5 | 255.0 | 5.922 | 0.2499 |
| 67.5 | 285.0 | 5.117 | 0.8283 |
| 67.5 | 315.0 | 4.6 | 0.4466 |
| 67.5 | 345.0 | 2.434 | 0.3858 |
| 82.5 | 15.0 | 1.184 | 0.269 |
| 82.5 | 45.0 | 2.144 | 0.2843 |
| 82.5 | 75.0 | 4.056 | 0.2879 |
| 82.5 | 105.0 | 4.207 | 0.2154 |
| 82.5 | 135.0 | 3.499 | 0.2479 |
| 82.5 | 165.0 | 2.233 | 0.1495 |
| 82.5 | 195.0 | 1.784 | 0.1295 |
| 82.5 | 225.0 | 3.481 | 0.2344 |
| 82.5 | 255.0 | 4.209 | 0.1947 |
| 82.5 | 285.0 | 4.213 | 0.2839 |
| 82.5 | 315.0 | 2.479 | 0.3712 |
| 82.5 | 345.0 | 0.9513 | 0.2126 |
| 97.5 | 45.0 | 1.842 | 0.1276 |
| 97.5 | 75.0 | 3.199 | 0.2656 |
| 97.5 | 105.0 | 3.04 | 0.1787 |
| 97.5 | 135.0 | 2.329 | 0.1839 |
| 97.5 | 165.0 | 1.786 | 0.1621 |
| 97.5 | 195.0 | 1.59 | 0.1449 |
| 97.5 | 225.0 | 2.664 | 0.2182 |
| 97.5 | 255.0 | 3.08 | 0.1766 |
| 97.5 | 285.0 | 2.926 | 0.2335 |
| 97.5 | 315.0 | 1.748 | 0.1316 |
| 112.5 | 15.0 | 0.5862 | 0.1003 |
| 112.5 | 45.0 | 1.25 | 0.1238 |
| 112.5 | 75.0 | 1.736 | 0.1821 |
| 112.5 | 105.0 | 1.866 | 0.1407 |
| 112.5 | 135.0 | 1.762 | 0.1637 |
| 112.5 | 165.0 | 1.166 | 0.1202 |
| 112.5 | 195.0 | 1.364 | 0.1586 |
| 112.5 | 225.0 | 1.49 | 0.1318 |
| 112.5 | 255.0 | 2.064 | 0.1574 |
| 112.5 | 285.0 | 1.876 | 0.1833 |
| 112.5 | 315.0 | 1.12 | 0.1122 |
| 112.5 | 345.0 | 0.6064 | 0.09367 |
| 127.5 | 15.0 | 0.4666 | 0.1044 |
| 127.5 | 45.0 | 0.814 | 0.1034 |
| 127.5 | 75.0 | 0.9186 | 0.1052 |
| 127.5 | 105.0 | 1.193 | 0.1279 |
| 127.5 | 135.0 | 1.268 | 0.2203 |
| 127.5 | 165.0 | 0.8286 | 0.1814 |
| 127.5 | 195.0 | 0.9155 | 0.2085 |
| 127.5 | 225.0 | 1.11 | 0.1208 |
| 127.5 | 255.0 | 1.305 | 0.1305 |
| 127.5 | 285.0 | 1.056 | 0.1379 |
| 127.5 | 315.0 | 0.7449 | 0.1046 |
| 127.5 | 345.0 | 0.5022 | 0.1028 |
| 142.5 | 15.0 | 0.2646 | 0.06332 |
| 142.5 | 45.0 | 0.3136 | 0.07128 |
| 142.5 | 75.0 | 0.6649 | 0.08625 |
| 142.5 | 105.0 | 0.7612 | 0.1771 |
| 142.5 | 255.0 | 0.8351 | 0.1815 |
| 142.5 | 285.0 | 0.6885 | 0.1011 |
| 142.5 | 315.0 | 0.5004 | 0.09549 |
| 142.5 | 345.0 | 0.2985 | 0.06788 |
| 157.5 | 15.0 | 0.4532 | 0.2132 |
| 157.5 | 345.0 | 0.3636 | 0.2382 |
Measurement comment:
Experiment comment: