Measurement E141M90
| Experiment: | Measurement of ep→e′nπ+ at 1.6<W<2.0 GeV and extraction of nucleon resonance electrocoupling at CLAS | |
|---|---|---|
| Year: | 2014 | |
| Spokespersons: | K. Park, V.D. Burkert, I.G. Aznauryan | |
| Reaction: | ep → π+n | |
| Polarization: | beam | |
| Quantity: | dσ/dΩ | |
| Q2: | 3.15 GeV2 | |
| W: | 1.89 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| -0.9 | 7.5 | 0.036 | 0.0117 |
| -0.9 | 22.5 | 0.0278 | 0.0107 |
| -0.9 | 37.5 | 0.0568 | 0.022 |
| -0.9 | 52.5 | 0.0472 | 0.0171 |
| -0.9 | 67.5 | 0.0853 | 0.0269 |
| -0.9 | 82.5 | 0.0756 | 0.0265 |
| -0.9 | 97.5 | 0.0547 | 0.0201 |
| -0.9 | 112.5 | 0.0467 | 0.0142 |
| -0.9 | 127.5 | 0.039 | 0.0107 |
| -0.9 | 142.5 | 0.0625 | 0.0336 |
| -0.9 | 157.5 | 0.0191 | 0.0073 |
| -0.9 | 172.5 | 0.0088 | 0.0026 |
| -0.9 | 187.5 | 0.0106 | 0.0038 |
| -0.9 | 217.5 | 0.0368 | 0.0213 |
| -0.9 | 232.5 | 0.0323 | 0.0102 |
| -0.9 | 247.5 | 0.0419 | 0.0132 |
| -0.9 | 262.5 | 0.0857 | 0.055 |
| -0.9 | 277.5 | 0.0893 | 0.0346 |
| -0.9 | 292.5 | 0.0621 | 0.0189 |
| -0.9 | 307.5 | 0.0471 | 0.0166 |
| -0.9 | 322.5 | 0.0742 | 0.0232 |
| -0.9 | 337.5 | 0.0302 | 0.011 |
| -0.9 | 352.5 | 0.048 | 0.015 |
| -0.7 | 7.5 | 0.0578 | 0.016 |
| -0.7 | 22.5 | 0.0574 | 0.0174 |
| -0.7 | 37.5 | 0.0652 | 0.0163 |
| -0.7 | 52.5 | 0.0571 | 0.0152 |
| -0.7 | 67.5 | 0.077 | 0.0199 |
| -0.7 | 82.5 | 0.0768 | 0.0193 |
| -0.7 | 97.5 | 0.0802 | 0.0167 |
| -0.7 | 112.5 | 0.058 | 0.0128 |
| -0.7 | 127.5 | 0.0683 | 0.015 |
| -0.7 | 142.5 | 0.0397 | 0.0107 |
| -0.7 | 157.5 | 0.0525 | 0.0152 |
| -0.7 | 172.5 | 0.0698 | 0.0152 |
| -0.7 | 187.5 | 0.0661 | 0.015 |
| -0.7 | 202.5 | 0.0346 | 0.0097 |
| -0.7 | 217.5 | 0.0662 | 0.0156 |
| -0.7 | 232.5 | 0.0574 | 0.0147 |
| -0.7 | 247.5 | 0.0952 | 0.0185 |
| -0.7 | 262.5 | 0.0669 | 0.0159 |
| -0.7 | 277.5 | 0.0678 | 0.0168 |
| -0.7 | 292.5 | 0.0896 | 0.0207 |
| -0.7 | 307.5 | 0.0773 | 0.0163 |
| -0.7 | 322.5 | 0.0516 | 0.0137 |
| -0.7 | 337.5 | 0.0367 | 0.0127 |
| -0.7 | 352.5 | 0.065 | 0.0196 |
| -0.5 | 37.5 | 0.0732 | 0.0257 |
| -0.5 | 52.5 | 0.0496 | 0.0144 |
| -0.5 | 67.5 | 0.048 | 0.0157 |
| -0.5 | 82.5 | 0.0295 | 0.0123 |
| -0.5 | 97.5 | 0.0619 | 0.0171 |
| -0.5 | 112.5 | 0.0601 | 0.0129 |
| -0.5 | 127.5 | 0.0422 | 0.0105 |
| -0.5 | 142.5 | 0.0523 | 0.0137 |
| -0.5 | 157.5 | 0.0381 | 0.0111 |
| -0.5 | 172.5 | 0.017 | 0.0058 |
| -0.5 | 187.5 | 0.0476 | 0.0106 |
| -0.5 | 202.5 | 0.0378 | 0.0109 |
| -0.5 | 217.5 | 0.0542 | 0.0145 |
| -0.5 | 232.5 | 0.0464 | 0.0115 |
| -0.5 | 247.5 | 0.068 | 0.0145 |
| -0.5 | 262.5 | 0.0749 | 0.0154 |
| -0.5 | 277.5 | 0.081 | 0.0186 |
| -0.5 | 292.5 | 0.0651 | 0.0248 |
| -0.5 | 307.5 | 0.037 | 0.015 |
| -0.5 | 322.5 | 0.0759 | 0.0225 |
| -0.5 | 337.5 | 0.0448 | 0.0395 |
| -0.3 | 22.5 | 0.0394 | 0.0169 |
| -0.3 | 37.5 | 0.0227 | 0.0089 |
| -0.3 | 52.5 | 0.0366 | 0.0174 |
| -0.3 | 67.5 | 0.0679 | 0.0312 |
| -0.3 | 82.5 | 0.0635 | 0.0173 |
| -0.3 | 97.5 | 0.052 | 0.0112 |
| -0.3 | 112.5 | 0.0369 | 0.0104 |
| -0.3 | 127.5 | 0.0568 | 0.0144 |
| -0.3 | 142.5 | 0.0798 | 0.0196 |
| -0.3 | 157.5 | 0.0685 | 0.015 |
| -0.3 | 172.5 | 0.0267 | 0.0073 |
| -0.3 | 187.5 | 0.0382 | 0.008 |
| -0.3 | 202.5 | 0.0685 | 0.0181 |
| -0.3 | 217.5 | 0.0457 | 0.0124 |
| -0.3 | 232.5 | 0.0429 | 0.012 |
| -0.3 | 247.5 | 0.0718 | 0.0182 |
| -0.3 | 262.5 | 0.0682 | 0.0138 |
| -0.3 | 277.5 | 0.0412 | 0.0164 |
| -0.3 | 292.5 | 0.066 | 0.0324 |
| -0.3 | 307.5 | 0.0829 | 0.0419 |
| -0.3 | 322.5 | 0.0728 | 0.0352 |
| -0.1 | 22.5 | 0.0794 | 0.0254 |
| -0.1 | 37.5 | 0.065 | 0.0212 |
| -0.1 | 52.5 | 0.1099 | 0.0335 |
| -0.1 | 67.5 | 0.1135 | 0.0304 |
| -0.1 | 82.5 | 0.0776 | 0.0211 |
| -0.1 | 97.5 | 0.0796 | 0.0165 |
| -0.1 | 112.5 | 0.0482 | 0.0121 |
| -0.1 | 127.5 | 0.0272 | 0.0079 |
| -0.1 | 142.5 | 0.0549 | 0.012 |
| -0.1 | 157.5 | 0.0452 | 0.0092 |
| -0.1 | 172.5 | 0.0538 | 0.0093 |
| -0.1 | 187.5 | 0.0218 | 0.0054 |
| -0.1 | 202.5 | 0.026 | 0.007 |
| -0.1 | 217.5 | 0.0454 | 0.0097 |
| -0.1 | 232.5 | 0.0591 | 0.0147 |
| -0.1 | 247.5 | 0.0847 | 0.0163 |
| -0.1 | 262.5 | 0.0362 | 0.0118 |
| -0.1 | 277.5 | 0.0581 | 0.0259 |
| -0.1 | 292.5 | 0.0703 | 0.032 |
| 0.1 | 22.5 | 0.0644 | 0.023 |
| 0.1 | 37.5 | 0.0696 | 0.0474 |
| 0.1 | 52.5 | 0.0611 | 0.0288 |
| 0.1 | 67.5 | 0.0743 | 0.0262 |
| 0.1 | 82.5 | 0.1 | 0.0321 |
| 0.1 | 97.5 | 0.0994 | 0.0337 |
| 0.1 | 112.5 | 0.0699 | 0.0249 |
| 0.1 | 127.5 | 0.0458 | 0.0152 |
| 0.1 | 142.5 | 0.0448 | 0.0114 |
| 0.1 | 157.5 | 0.0182 | 0.0059 |
| 0.1 | 172.5 | 0.0207 | 0.0049 |
| 0.1 | 187.5 | 0.0234 | 0.0051 |
| 0.1 | 202.5 | 0.0171 | 0.0058 |
| 0.1 | 217.5 | 0.0668 | 0.0168 |
| 0.1 | 232.5 | 0.0313 | 0.0132 |
| 0.1 | 247.5 | 0.0835 | 0.0372 |
| 0.1 | 262.5 | 0.1063 | 0.0434 |
| 0.1 | 292.5 | 0.0794 | 0.046 |
| 0.1 | 307.5 | 0.094 | 0.0861 |
| 0.3 | 22.5 | 0.0891 | 0.133 |
| 0.3 | 37.5 | 0.0445 | 0.0179 |
| 0.3 | 52.5 | 0.1352 | 0.0379 |
| 0.3 | 67.5 | 0.1454 | 0.0364 |
| 0.3 | 82.5 | 0.1365 | 0.0318 |
| 0.3 | 97.5 | 0.0953 | 0.031 |
| 0.3 | 112.5 | 0.0968 | 0.0397 |
| 0.3 | 127.5 | 0.0754 | 0.0211 |
| 0.3 | 142.5 | 0.0692 | 0.0184 |
| 0.3 | 157.5 | 0.072 | 0.0165 |
| 0.3 | 172.5 | 0.0717 | 0.0124 |
| 0.3 | 187.5 | 0.0674 | 0.0119 |
| 0.3 | 202.5 | 0.0548 | 0.0129 |
| 0.3 | 217.5 | 0.0819 | 0.0229 |
| 0.3 | 232.5 | 0.0756 | 0.0312 |
| 0.3 | 247.5 | 0.1398 | 0.101 |
| 0.3 | 262.5 | 0.0978 | 0.0402 |
| 0.3 | 277.5 | 0.0652 | 0.0306 |
| 0.3 | 292.5 | 0.1064 | 0.0346 |
| 0.3 | 322.5 | 0.1116 | 0.1046 |
| 0.5 | 22.5 | 0.1763 | 0.0645 |
| 0.5 | 37.5 | 0.1255 | 0.03 |
| 0.5 | 52.5 | 0.134 | 0.03 |
| 0.5 | 67.5 | 0.1197 | 0.029 |
| 0.5 | 82.5 | 0.1824 | 0.0416 |
| 0.5 | 97.5 | 0.1623 | 0.0432 |
| 0.5 | 112.5 | 0.1961 | 0.0745 |
| 0.5 | 127.5 | 0.1564 | 0.0419 |
| 0.5 | 142.5 | 0.1627 | 0.0394 |
| 0.5 | 157.5 | 0.1116 | 0.0283 |
| 0.5 | 172.5 | 0.1271 | 0.0265 |
| 0.5 | 187.5 | 0.1826 | 0.0379 |
| 0.5 | 202.5 | 0.1459 | 0.0336 |
| 0.5 | 217.5 | 0.1077 | 0.0273 |
| 0.5 | 232.5 | 0.1499 | 0.0366 |
| 0.5 | 247.5 | 0.219 | 0.0571 |
| 0.5 | 262.5 | 0.2587 | 0.0799 |
| 0.5 | 277.5 | 0.2304 | 0.0615 |
| 0.5 | 292.5 | 0.1705 | 0.0449 |
| 0.5 | 307.5 | 0.1181 | 0.0368 |
| 0.5 | 322.5 | 0.1201 | 0.0341 |
| 0.5 | 337.5 | 0.078 | 0.0412 |
| 0.7 | 7.5 | 0.0856 | 0.0501 |
| 0.7 | 22.5 | 0.0814 | 0.0357 |
| 0.7 | 37.5 | 0.1205 | 0.0957 |
| 0.7 | 52.5 | 0.1313 | 0.0296 |
| 0.7 | 67.5 | 0.1414 | 0.0545 |
| 0.7 | 82.5 | 0.1641 | 0.0385 |
| 0.7 | 97.5 | 0.1863 | 0.0476 |
| 0.7 | 112.5 | 0.1946 | 0.0721 |
| 0.7 | 127.5 | 0.1681 | 0.0367 |
| 0.7 | 142.5 | 0.538 | 0.1108 |
| 0.7 | 157.5 | 0.1769 | 0.0374 |
| 0.7 | 172.5 | 0.2804 | 0.0542 |
| 0.7 | 187.5 | 0.2153 | 0.0384 |
| 0.7 | 202.5 | 0.2595 | 0.051 |
| 0.7 | 217.5 | 0.1843 | 0.0371 |
| 0.7 | 232.5 | 0.1364 | 0.0352 |
| 0.7 | 247.5 | 0.2314 | 0.0526 |
| 0.7 | 262.5 | 0.2881 | 0.0769 |
| 0.7 | 277.5 | 0.275 | 0.1034 |
| 0.7 | 292.5 | 0.2024 | 0.0511 |
| 0.7 | 307.5 | 0.2155 | 0.1282 |
| 0.7 | 322.5 | 0.1295 | 0.0438 |
| 0.7 | 337.5 | 0.0902 | 0.0339 |
| 0.7 | 352.5 | 0.191 | 0.0728 |
| 0.9 | 7.5 | 0.425 | 0.0526 |
| 0.9 | 22.5 | 0.2486 | 0.0341 |
| 0.9 | 37.5 | 0.2007 | 0.0309 |
| 0.9 | 52.5 | 0.215 | 0.0324 |
| 0.9 | 67.5 | 0.2602 | 0.0357 |
| 0.9 | 82.5 | 0.3113 | 0.0443 |
| 0.9 | 97.5 | 0.3594 | 0.0544 |
| 0.9 | 112.5 | 0.265 | 0.0357 |
| 0.9 | 127.5 | 0.1961 | 0.0266 |
| 0.9 | 142.5 | 0.3027 | 0.0411 |
| 0.9 | 157.5 | 0.2723 | 0.0365 |
| 0.9 | 172.5 | 0.2853 | 0.0382 |
| 0.9 | 187.5 | 0.2903 | 0.0351 |
| 0.9 | 202.5 | 0.2908 | 0.036 |
| 0.9 | 217.5 | 0.3521 | 0.0441 |
| 0.9 | 232.5 | 0.3168 | 0.0459 |
| 0.9 | 247.5 | 0.416 | 0.061 |
| 0.9 | 262.5 | 0.3062 | 0.0459 |
| 0.9 | 277.5 | 0.2628 | 0.0385 |
| 0.9 | 292.5 | 0.2133 | 0.0308 |
| 0.9 | 307.5 | 0.2498 | 0.0366 |
| 0.9 | 322.5 | 0.1516 | 0.0248 |
| 0.9 | 337.5 | 0.2441 | 0.033 |
| 0.9 | 352.5 | 0.297 | 0.0393 |
Experiment comment: