Measurement E8M38
| 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: | 1.36 — 1.38 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 9.367 | 0.8827 |
| 7.5 | 45.0 | 9.886 | 1.105 |
| 7.5 | 75.0 | 8.925 | 1.018 |
| 7.5 | 105.0 | 10.39 | 1.096 |
| 7.5 | 135.0 | 12.07 | 1.235 |
| 7.5 | 165.0 | 9.771 | 1.073 |
| 7.5 | 195.0 | 10.3 | 1.13 |
| 7.5 | 225.0 | 9.734 | 1.091 |
| 7.5 | 255.0 | 13.13 | 1.616 |
| 7.5 | 285.0 | 12.72 | 1.44 |
| 7.5 | 315.0 | 11.58 | 1.235 |
| 7.5 | 345.0 | 12.14 | 1.321 |
| 22.5 | 15.0 | 11.48 | 1.018 |
| 22.5 | 45.0 | 9.985 | 2.83 |
| 22.5 | 75.0 | 10.84 | 1.619 |
| 22.5 | 105.0 | 9.933 | 1.152 |
| 22.5 | 135.0 | 9.12 | 3.363 |
| 22.5 | 255.0 | 10.86 | 1.567 |
| 22.5 | 285.0 | 9.313 | 1.311 |
| 22.5 | 315.0 | 11.99 | 3.914 |
| 22.5 | 345.0 | 11.72 | 1.607 |
| 37.5 | 45.0 | 8.244 | 0.7896 |
| 37.5 | 75.0 | 8.779 | 0.6264 |
| 37.5 | 135.0 | 7.864 | 2.0 |
| 37.5 | 165.0 | 5.522 | 0.3497 |
| 37.5 | 195.0 | 4.748 | 0.3134 |
| 37.5 | 225.0 | 6.312 | 1.033 |
| 37.5 | 285.0 | 9.161 | 0.6599 |
| 37.5 | 315.0 | 9.098 | 0.7996 |
| 52.5 | 45.0 | 6.645 | 0.7181 |
| 52.5 | 75.0 | 9.471 | 1.403 |
| 52.5 | 105.0 | 6.848 | 0.532 |
| 52.5 | 135.0 | 5.71 | 0.4162 |
| 52.5 | 165.0 | 4.193 | 0.2371 |
| 52.5 | 195.0 | 3.98 | 0.2129 |
| 52.5 | 225.0 | 6.372 | 0.4854 |
| 52.5 | 255.0 | 8.109 | 0.7368 |
| 52.5 | 285.0 | 8.983 | 1.92 |
| 52.5 | 315.0 | 6.504 | 0.4722 |
| 67.5 | 45.0 | 3.964 | 0.5122 |
| 67.5 | 75.0 | 6.392 | 1.407 |
| 67.5 | 105.0 | 5.934 | 0.2897 |
| 67.5 | 135.0 | 4.591 | 0.3388 |
| 67.5 | 165.0 | 3.16 | 0.1797 |
| 67.5 | 195.0 | 3.317 | 0.1982 |
| 67.5 | 225.0 | 5.314 | 0.4023 |
| 67.5 | 255.0 | 6.256 | 0.2885 |
| 67.5 | 285.0 | 5.815 | 0.5808 |
| 67.5 | 315.0 | 3.678 | 0.6256 |
| 82.5 | 15.0 | 1.739 | 0.4342 |
| 82.5 | 45.0 | 3.686 | 1.55 |
| 82.5 | 75.0 | 4.551 | 0.2976 |
| 82.5 | 105.0 | 4.79 | 0.2611 |
| 82.5 | 135.0 | 3.449 | 0.2776 |
| 82.5 | 165.0 | 2.454 | 0.1806 |
| 82.5 | 195.0 | 2.788 | 0.2052 |
| 82.5 | 225.0 | 4.112 | 0.317 |
| 82.5 | 255.0 | 4.771 | 0.237 |
| 82.5 | 285.0 | 4.327 | 0.2765 |
| 82.5 | 315.0 | 3.19 | 0.6474 |
| 82.5 | 345.0 | 1.355 | 0.4822 |
| 97.5 | 45.0 | 1.588 | 0.1309 |
| 97.5 | 75.0 | 3.252 | 0.2832 |
| 97.5 | 105.0 | 3.231 | 0.1996 |
| 97.5 | 135.0 | 2.931 | 0.233 |
| 97.5 | 165.0 | 1.843 | 0.1456 |
| 97.5 | 195.0 | 2.118 | 0.1604 |
| 97.5 | 225.0 | 2.553 | 0.23 |
| 97.5 | 255.0 | 2.976 | 0.1741 |
| 97.5 | 285.0 | 3.118 | 0.2557 |
| 97.5 | 315.0 | 1.879 | 0.1503 |
| 112.5 | 15.0 | 0.6322 | 0.1035 |
| 112.5 | 45.0 | 1.201 | 0.1175 |
| 112.5 | 75.0 | 1.943 | 0.2041 |
| 112.5 | 105.0 | 1.987 | 0.164 |
| 112.5 | 135.0 | 1.501 | 0.1254 |
| 112.5 | 165.0 | 1.098 | 0.1326 |
| 112.5 | 195.0 | 1.429 | 0.1532 |
| 112.5 | 225.0 | 1.768 | 0.1877 |
| 112.5 | 255.0 | 1.999 | 0.1543 |
| 112.5 | 285.0 | 1.642 | 0.196 |
| 112.5 | 315.0 | 1.101 | 0.114 |
| 112.5 | 345.0 | 0.5764 | 0.1073 |
| 127.5 | 15.0 | 0.2922 | 0.07579 |
| 127.5 | 45.0 | 0.7108 | 0.0964 |
| 127.5 | 75.0 | 1.216 | 0.1714 |
| 127.5 | 105.0 | 1.342 | 0.1747 |
| 127.5 | 135.0 | 1.278 | 0.1957 |
| 127.5 | 165.0 | 1.169 | 0.2906 |
| 127.5 | 195.0 | 0.9168 | 0.1646 |
| 127.5 | 225.0 | 1.227 | 0.1826 |
| 127.5 | 255.0 | 1.229 | 0.1284 |
| 127.5 | 285.0 | 0.8834 | 0.1162 |
| 127.5 | 315.0 | 0.706 | 0.099 |
| 127.5 | 345.0 | 0.3322 | 0.1148 |
| 142.5 | 15.0 | 0.26 | 0.0662 |
| 142.5 | 45.0 | 0.6408 | 0.1245 |
| 142.5 | 75.0 | 0.5811 | 0.09213 |
| 142.5 | 105.0 | 0.9819 | 0.2224 |
| 142.5 | 255.0 | 0.717 | 0.1624 |
| 142.5 | 285.0 | 0.8119 | 0.1358 |
| 142.5 | 315.0 | 0.4335 | 0.09407 |
| 142.5 | 345.0 | 0.3034 | 0.0744 |
| 157.5 | 15.0 | 0.33 | 0.1036 |
| 157.5 | 345.0 | 0.2098 | 0.06865 |
Measurement comment:
Experiment comment: