Measurement E8M64
| Experiment: | E89-038 CLAS experiment | |
|---|---|---|
| Year: | 1999 | |
| Spokespersons: | V. Burkert, R. Minehart | |
| Reaction: | ep → π+n | |
| Polarization: | none | |
| Quantity: | dσ/dΩ | |
| Q2: | 0.45 — 0.55 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 | 6.438 | 0.8984 |
| 7.5 | 45.0 | 6.483 | 0.9133 |
| 7.5 | 75.0 | 8.146 | 1.908 |
| 7.5 | 105.0 | 8.427 | 1.416 |
| 7.5 | 135.0 | 9.251 | 1.359 |
| 7.5 | 165.0 | 14.32 | 2.818 |
| 7.5 | 195.0 | 7.037 | 1.075 |
| 7.5 | 225.0 | 6.701 | 1.101 |
| 7.5 | 255.0 | 5.93 | 1.011 |
| 7.5 | 285.0 | 6.427 | 1.034 |
| 7.5 | 315.0 | 6.378 | 1.058 |
| 7.5 | 345.0 | 6.37 | 0.9199 |
| 22.5 | 45.0 | 9.557 | 4.775 |
| 22.5 | 75.0 | 5.753 | 1.024 |
| 22.5 | 105.0 | 7.735 | 0.959 |
| 22.5 | 135.0 | 4.237 | 0.5509 |
| 22.5 | 165.0 | 4.877 | 0.5803 |
| 22.5 | 195.0 | 3.823 | 0.4975 |
| 22.5 | 225.0 | 6.017 | 0.7011 |
| 22.5 | 255.0 | 5.993 | 0.8592 |
| 22.5 | 285.0 | 8.566 | 1.416 |
| 22.5 | 315.0 | 8.166 | 2.46 |
| 37.5 | 45.0 | 5.914 | 0.4929 |
| 37.5 | 75.0 | 7.157 | 0.5575 |
| 37.5 | 105.0 | 6.017 | 0.7493 |
| 37.5 | 255.0 | 5.838 | 0.7383 |
| 37.5 | 285.0 | 6.583 | 0.4901 |
| 37.5 | 315.0 | 10.96 | 3.949 |
| 52.5 | 45.0 | 4.68 | 0.5861 |
| 52.5 | 75.0 | 5.952 | 0.3875 |
| 52.5 | 165.0 | 2.678 | 0.215 |
| 52.5 | 195.0 | 2.937 | 0.2082 |
| 52.5 | 225.0 | 2.66 | 0.3063 |
| 52.5 | 285.0 | 6.324 | 0.4075 |
| 52.5 | 315.0 | 4.738 | 0.5917 |
| 67.5 | 15.0 | 2.719 | 0.4133 |
| 67.5 | 45.0 | 4.34 | 0.4298 |
| 67.5 | 75.0 | 5.39 | 1.372 |
| 67.5 | 105.0 | 5.185 | 0.5082 |
| 67.5 | 135.0 | 3.551 | 0.2931 |
| 67.5 | 165.0 | 2.125 | 0.1582 |
| 67.5 | 195.0 | 2.631 | 0.1808 |
| 67.5 | 225.0 | 3.382 | 0.2617 |
| 67.5 | 255.0 | 5.103 | 0.3319 |
| 67.5 | 285.0 | 5.2 | 2.015 |
| 67.5 | 315.0 | 3.844 | 0.4141 |
| 67.5 | 345.0 | 2.42 | 0.3946 |
| 82.5 | 15.0 | 1.444 | 0.252 |
| 82.5 | 45.0 | 2.656 | 0.7507 |
| 82.5 | 75.0 | 3.333 | 0.32 |
| 82.5 | 105.0 | 3.374 | 0.21 |
| 82.5 | 135.0 | 2.889 | 0.25 |
| 82.5 | 165.0 | 2.06 | 0.1758 |
| 82.5 | 195.0 | 2.223 | 0.1855 |
| 82.5 | 225.0 | 3.419 | 0.2809 |
| 82.5 | 255.0 | 3.455 | 0.2128 |
| 82.5 | 285.0 | 4.068 | 0.4604 |
| 82.5 | 315.0 | 2.333 | 0.3765 |
| 82.5 | 345.0 | 1.897 | 0.3471 |
| 97.5 | 45.0 | 1.254 | 0.1803 |
| 97.5 | 75.0 | 2.458 | 0.2642 |
| 97.5 | 105.0 | 2.534 | 0.1824 |
| 97.5 | 135.0 | 2.41 | 0.2324 |
| 97.5 | 165.0 | 1.485 | 0.1934 |
| 97.5 | 195.0 | 1.956 | 0.2394 |
| 97.5 | 225.0 | 1.821 | 0.2055 |
| 97.5 | 255.0 | 2.786 | 0.2039 |
| 97.5 | 285.0 | 2.309 | 0.2237 |
| 97.5 | 315.0 | 1.337 | 0.1694 |
| 112.5 | 15.0 | 0.5614 | 0.1579 |
| 112.5 | 45.0 | 1.166 | 0.1533 |
| 112.5 | 75.0 | 1.441 | 0.1841 |
| 112.5 | 105.0 | 1.605 | 0.1687 |
| 112.5 | 135.0 | 1.469 | 0.1769 |
| 112.5 | 165.0 | 1.019 | 0.1362 |
| 112.5 | 195.0 | 1.649 | 0.2348 |
| 112.5 | 225.0 | 1.764 | 0.204 |
| 112.5 | 255.0 | 1.698 | 0.1797 |
| 112.5 | 285.0 | 1.84 | 0.2231 |
| 112.5 | 315.0 | 1.153 | 0.1923 |
| 112.5 | 345.0 | 0.6509 | 0.2978 |
| 127.5 | 15.0 | 0.4108 | 0.1195 |
| 127.5 | 45.0 | 0.7498 | 0.1183 |
| 127.5 | 75.0 | 1.047 | 0.1663 |
| 127.5 | 105.0 | 0.9099 | 0.1482 |
| 127.5 | 135.0 | 0.8894 | 0.1518 |
| 127.5 | 165.0 | 0.9479 | 0.1892 |
| 127.5 | 195.0 | 1.173 | 0.4325 |
| 127.5 | 225.0 | 1.601 | 0.5073 |
| 127.5 | 255.0 | 1.168 | 0.2062 |
| 127.5 | 285.0 | 1.033 | 0.163 |
| 127.5 | 315.0 | 0.6778 | 0.1406 |
| 127.5 | 345.0 | 0.3299 | 0.09162 |
| 142.5 | 15.0 | 0.194 | 0.05869 |
| 142.5 | 45.0 | 0.5077 | 0.1752 |
| 142.5 | 75.0 | 0.4361 | 0.07958 |
| 142.5 | 105.0 | 1.07 | 0.3867 |
| 142.5 | 225.0 | 0.6551 | 0.3243 |
| 142.5 | 255.0 | 1.658 | 0.5293 |
| 142.5 | 285.0 | 0.6876 | 0.1905 |
| 142.5 | 315.0 | 0.4409 | 0.121 |
| 142.5 | 345.0 | 0.2277 | 0.07258 |
| 157.5 | 15.0 | 0.1289 | 0.05512 |
| 157.5 | 345.0 | 0.3116 | 0.2206 |
Measurement comment:
Experiment comment: