Measurement E8M15
| 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: | 1.38 — 1.4 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 17.07 | 1.427 |
| 7.5 | 45.0 | 13.34 | 1.315 |
| 7.5 | 75.0 | 13.55 | 1.296 |
| 7.5 | 105.0 | 17.15 | 1.675 |
| 7.5 | 135.0 | 11.63 | 1.208 |
| 7.5 | 165.0 | 11.98 | 1.349 |
| 7.5 | 195.0 | 13.55 | 1.501 |
| 7.5 | 225.0 | 13.0 | 1.305 |
| 7.5 | 255.0 | 14.47 | 1.439 |
| 7.5 | 285.0 | 14.51 | 1.405 |
| 7.5 | 315.0 | 13.57 | 1.424 |
| 7.5 | 345.0 | 16.01 | 1.349 |
| 22.5 | 15.0 | 13.24 | 2.629 |
| 22.5 | 75.0 | 9.966 | 1.798 |
| 22.5 | 105.0 | 12.57 | 1.625 |
| 22.5 | 255.0 | 12.08 | 2.331 |
| 22.5 | 285.0 | 10.99 | 2.202 |
| 37.5 | 45.0 | 10.52 | 0.63 |
| 37.5 | 75.0 | 9.942 | 0.587 |
| 37.5 | 165.0 | 4.117 | 0.2356 |
| 37.5 | 195.0 | 4.947 | 0.2771 |
| 37.5 | 285.0 | 11.12 | 0.6594 |
| 37.5 | 315.0 | 10.44 | 0.6284 |
| 52.5 | 45.0 | 7.383 | 0.9288 |
| 52.5 | 75.0 | 8.731 | 1.075 |
| 52.5 | 105.0 | 8.498 | 0.5736 |
| 52.5 | 135.0 | 5.844 | 0.5029 |
| 52.5 | 165.0 | 3.427 | 0.1786 |
| 52.5 | 195.0 | 3.31 | 0.1719 |
| 52.5 | 225.0 | 6.441 | 0.4529 |
| 52.5 | 255.0 | 8.507 | 0.4784 |
| 52.5 | 285.0 | 10.05 | 1.263 |
| 52.5 | 315.0 | 7.494 | 0.9756 |
| 67.5 | 45.0 | 5.045 | 1.179 |
| 67.5 | 75.0 | 7.159 | 0.931 |
| 67.5 | 105.0 | 6.981 | 0.2763 |
| 67.5 | 135.0 | 4.534 | 0.3342 |
| 67.5 | 165.0 | 2.99 | 0.1664 |
| 67.5 | 195.0 | 2.876 | 0.164 |
| 67.5 | 225.0 | 4.526 | 0.3687 |
| 67.5 | 255.0 | 7.168 | 0.2903 |
| 67.5 | 285.0 | 5.885 | 0.5959 |
| 67.5 | 315.0 | 4.983 | 0.7131 |
| 82.5 | 15.0 | 1.37 | 0.4462 |
| 82.5 | 45.0 | 2.484 | 0.2721 |
| 82.5 | 75.0 | 4.691 | 0.3319 |
| 82.5 | 105.0 | 5.12 | 0.2273 |
| 82.5 | 135.0 | 3.739 | 0.4188 |
| 82.5 | 165.0 | 2.369 | 0.19 |
| 82.5 | 195.0 | 2.163 | 0.169 |
| 82.5 | 225.0 | 4.709 | 0.4674 |
| 82.5 | 255.0 | 4.973 | 0.2243 |
| 82.5 | 285.0 | 5.452 | 0.3554 |
| 82.5 | 315.0 | 3.135 | 0.4983 |
| 82.5 | 345.0 | 0.8781 | 0.2355 |
| 97.5 | 15.0 | 1.309 | 0.5952 |
| 97.5 | 45.0 | 2.146 | 0.1513 |
| 97.5 | 75.0 | 3.364 | 0.285 |
| 97.5 | 105.0 | 3.492 | 0.2004 |
| 97.5 | 135.0 | 2.166 | 0.1801 |
| 97.5 | 165.0 | 1.761 | 0.1407 |
| 97.5 | 195.0 | 1.601 | 0.1352 |
| 97.5 | 225.0 | 2.896 | 0.2429 |
| 97.5 | 255.0 | 3.852 | 0.2093 |
| 97.5 | 285.0 | 3.52 | 0.2823 |
| 97.5 | 315.0 | 2.016 | 0.1418 |
| 97.5 | 345.0 | 1.293 | 0.3457 |
| 112.5 | 15.0 | 0.5593 | 0.1219 |
| 112.5 | 45.0 | 1.21 | 0.1174 |
| 112.5 | 75.0 | 2.011 | 0.201 |
| 112.5 | 105.0 | 2.017 | 0.1502 |
| 112.5 | 135.0 | 1.989 | 0.3466 |
| 112.5 | 165.0 | 1.412 | 0.2101 |
| 112.5 | 195.0 | 1.544 | 0.2073 |
| 112.5 | 225.0 | 1.814 | 0.4443 |
| 112.5 | 255.0 | 2.083 | 0.1364 |
| 112.5 | 285.0 | 2.075 | 0.2275 |
| 112.5 | 315.0 | 1.281 | 0.132 |
| 112.5 | 345.0 | 0.5218 | 0.09025 |
| 127.5 | 15.0 | 0.2635 | 0.05513 |
| 127.5 | 45.0 | 1.085 | 0.1465 |
| 127.5 | 75.0 | 1.054 | 0.1183 |
| 127.5 | 105.0 | 1.534 | 0.1723 |
| 127.5 | 135.0 | 1.105 | 0.1364 |
| 127.5 | 195.0 | 1.563 | 0.5926 |
| 127.5 | 225.0 | 1.201 | 0.1897 |
| 127.5 | 255.0 | 1.107 | 0.1261 |
| 127.5 | 285.0 | 1.34 | 0.156 |
| 127.5 | 315.0 | 0.8594 | 0.1133 |
| 127.5 | 345.0 | 0.3016 | 0.06565 |
| 142.5 | 15.0 | 0.6668 | 0.2484 |
| 142.5 | 45.0 | 0.3169 | 0.06913 |
| 142.5 | 75.0 | 0.6693 | 0.09072 |
| 142.5 | 105.0 | 1.006 | 0.4067 |
| 142.5 | 255.0 | 1.728 | 0.7958 |
| 142.5 | 285.0 | 1.007 | 0.1363 |
| 142.5 | 315.0 | 0.9331 | 0.2765 |
| 142.5 | 345.0 | 0.4032 | 0.08489 |
| 157.5 | 15.0 | 0.3049 | 0.1085 |
| 157.5 | 345.0 | 0.3552 | 0.09484 |
Measurement comment:
Experiment comment: