Measurement E8M55
| 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: | 1.24 — 1.26 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 8.003 | 1.34 |
| 7.5 | 45.0 | 10.75 | 2.341 |
| 7.5 | 345.0 | 10.39 | 2.424 |
| 22.5 | 15.0 | 10.65 | 0.9819 |
| 22.5 | 45.0 | 12.7 | 1.508 |
| 22.5 | 135.0 | 11.42 | 0.7967 |
| 22.5 | 165.0 | 11.86 | 0.7598 |
| 22.5 | 195.0 | 11.54 | 0.7529 |
| 22.5 | 225.0 | 11.78 | 0.8349 |
| 22.5 | 315.0 | 11.85 | 1.601 |
| 22.5 | 345.0 | 11.68 | 1.141 |
| 37.5 | 15.0 | 10.29 | 2.007 |
| 37.5 | 45.0 | 9.22 | 1.559 |
| 37.5 | 105.0 | 12.67 | 0.9905 |
| 37.5 | 135.0 | 11.91 | 0.7204 |
| 37.5 | 165.0 | 11.66 | 0.5552 |
| 37.5 | 195.0 | 11.34 | 0.5442 |
| 37.5 | 225.0 | 10.83 | 0.663 |
| 37.5 | 255.0 | 12.19 | 1.014 |
| 37.5 | 315.0 | 8.734 | 1.406 |
| 37.5 | 345.0 | 9.561 | 1.909 |
| 52.5 | 45.0 | 11.08 | 0.9694 |
| 52.5 | 75.0 | 13.9 | 4.049 |
| 52.5 | 105.0 | 12.91 | 0.7488 |
| 52.5 | 135.0 | 12.42 | 0.7004 |
| 52.5 | 165.0 | 10.07 | 0.4793 |
| 52.5 | 195.0 | 10.68 | 0.5084 |
| 52.5 | 225.0 | 12.26 | 0.7147 |
| 52.5 | 255.0 | 12.91 | 0.7207 |
| 52.5 | 285.0 | 11.97 | 1.479 |
| 52.5 | 315.0 | 10.94 | 0.9204 |
| 67.5 | 45.0 | 9.435 | 1.506 |
| 67.5 | 75.0 | 11.74 | 0.4994 |
| 67.5 | 105.0 | 12.34 | 0.6063 |
| 67.5 | 135.0 | 11.82 | 0.6806 |
| 67.5 | 165.0 | 8.672 | 0.4304 |
| 67.5 | 195.0 | 8.558 | 0.4133 |
| 67.5 | 225.0 | 11.44 | 0.6615 |
| 67.5 | 255.0 | 12.69 | 0.5817 |
| 67.5 | 285.0 | 11.77 | 0.4934 |
| 67.5 | 315.0 | 10.47 | 2.009 |
| 82.5 | 15.0 | 6.552 | 1.894 |
| 82.5 | 45.0 | 9.419 | 1.349 |
| 82.5 | 75.0 | 10.46 | 0.4611 |
| 82.5 | 105.0 | 12.53 | 0.5269 |
| 82.5 | 135.0 | 10.76 | 0.6708 |
| 82.5 | 165.0 | 7.611 | 0.4302 |
| 82.5 | 195.0 | 7.768 | 0.4332 |
| 82.5 | 225.0 | 10.27 | 0.6699 |
| 82.5 | 255.0 | 12.54 | 0.5108 |
| 82.5 | 285.0 | 10.89 | 0.4459 |
| 82.5 | 315.0 | 8.915 | 3.532 |
| 97.5 | 15.0 | 3.884 | 0.8972 |
| 97.5 | 45.0 | 7.805 | 0.462 |
| 97.5 | 75.0 | 11.32 | 0.6106 |
| 97.5 | 105.0 | 11.16 | 0.485 |
| 97.5 | 135.0 | 8.105 | 0.4786 |
| 97.5 | 165.0 | 6.819 | 0.3675 |
| 97.5 | 195.0 | 6.521 | 0.3525 |
| 97.5 | 225.0 | 8.707 | 0.5249 |
| 97.5 | 255.0 | 10.78 | 0.4806 |
| 97.5 | 285.0 | 10.07 | 0.5297 |
| 97.5 | 315.0 | 7.481 | 0.4349 |
| 97.5 | 345.0 | 4.05 | 1.304 |
| 112.5 | 15.0 | 4.77 | 0.6148 |
| 112.5 | 45.0 | 6.743 | 0.3749 |
| 112.5 | 75.0 | 9.19 | 0.61 |
| 112.5 | 105.0 | 8.352 | 0.4027 |
| 112.5 | 135.0 | 7.129 | 0.4699 |
| 112.5 | 165.0 | 5.939 | 0.4584 |
| 112.5 | 195.0 | 5.705 | 0.4263 |
| 112.5 | 225.0 | 6.725 | 0.4513 |
| 112.5 | 255.0 | 9.479 | 0.4391 |
| 112.5 | 285.0 | 9.102 | 0.6001 |
| 112.5 | 315.0 | 7.016 | 0.3895 |
| 112.5 | 345.0 | 4.247 | 0.5983 |
| 127.5 | 15.0 | 4.167 | 0.4216 |
| 127.5 | 45.0 | 5.376 | 0.3631 |
| 127.5 | 75.0 | 6.619 | 0.4878 |
| 127.5 | 105.0 | 6.837 | 0.4382 |
| 127.5 | 135.0 | 4.915 | 0.4198 |
| 127.5 | 165.0 | 3.979 | 0.6239 |
| 127.5 | 195.0 | 4.371 | 0.7335 |
| 127.5 | 225.0 | 5.619 | 0.4861 |
| 127.5 | 255.0 | 6.502 | 0.435 |
| 127.5 | 285.0 | 6.899 | 0.4799 |
| 127.5 | 315.0 | 5.856 | 0.412 |
| 127.5 | 345.0 | 4.874 | 0.4838 |
| 142.5 | 15.0 | 4.039 | 0.451 |
| 142.5 | 45.0 | 4.601 | 0.4176 |
| 142.5 | 75.0 | 5.077 | 0.4092 |
| 142.5 | 105.0 | 5.229 | 0.7268 |
| 142.5 | 255.0 | 4.403 | 0.569 |
| 142.5 | 285.0 | 5.975 | 0.4921 |
| 142.5 | 315.0 | 4.59 | 0.4332 |
| 142.5 | 345.0 | 4.75 | 0.506 |
| 157.5 | 15.0 | 4.273 | 0.7988 |
| 157.5 | 45.0 | 2.887 | 0.8475 |
| 157.5 | 75.0 | 5.804 | 1.526 |
| 157.5 | 315.0 | 3.438 | 1.295 |
| 157.5 | 345.0 | 4.075 | 0.7227 |
Measurement comment:
Experiment comment: