Measurement E141M111
| 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: | 4.0 GeV2 | |
| W: | 1.78 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| -0.9 | 7.5 | 0.064 | 0.0281 |
| -0.9 | 22.5 | 0.0675 | 0.0265 |
| -0.9 | 37.5 | 0.115 | 0.0424 |
| -0.9 | 67.5 | 0.0609 | 0.0267 |
| -0.9 | 277.5 | 0.0727 | 0.0422 |
| -0.9 | 292.5 | 0.1054 | 0.0647 |
| -0.9 | 307.5 | 0.0351 | 0.0158 |
| -0.9 | 322.5 | 0.0418 | 0.0196 |
| -0.9 | 337.5 | 0.0651 | 0.0257 |
| -0.9 | 352.5 | 0.0448 | 0.0205 |
| -0.7 | 7.5 | 0.0539 | 0.0254 |
| -0.7 | 37.5 | 0.0334 | 0.0131 |
| -0.7 | 52.5 | 0.042 | 0.0172 |
| -0.7 | 67.5 | 0.0443 | 0.0277 |
| -0.7 | 112.5 | 0.0669 | 0.0257 |
| -0.7 | 127.5 | 0.0747 | 0.0473 |
| -0.7 | 142.5 | 0.0175 | 0.007 |
| -0.7 | 232.5 | 0.0601 | 0.0211 |
| -0.7 | 247.5 | 0.0424 | 0.0146 |
| -0.7 | 262.5 | 0.0793 | 0.0248 |
| -0.7 | 277.5 | 0.0438 | 0.0154 |
| -0.7 | 292.5 | 0.0221 | 0.0097 |
| -0.7 | 322.5 | 0.0166 | 0.0113 |
| -0.7 | 337.5 | 0.0633 | 0.0245 |
| -0.5 | 22.5 | 0.0567 | 0.0287 |
| -0.5 | 37.5 | 0.0615 | 0.0251 |
| -0.5 | 52.5 | 0.0833 | 0.0293 |
| -0.5 | 67.5 | 0.0616 | 0.0211 |
| -0.5 | 82.5 | 0.0454 | 0.0174 |
| -0.5 | 97.5 | 0.0322 | 0.0128 |
| -0.5 | 112.5 | 0.0375 | 0.0128 |
| -0.5 | 127.5 | 0.0205 | 0.0087 |
| -0.5 | 142.5 | 0.0606 | 0.0291 |
| -0.5 | 157.5 | 0.0568 | 0.0223 |
| -0.5 | 172.5 | 0.0476 | 0.0154 |
| -0.5 | 187.5 | 0.0757 | 0.0399 |
| -0.5 | 202.5 | 0.0557 | 0.0162 |
| -0.5 | 217.5 | 0.1043 | 0.0323 |
| -0.5 | 232.5 | 0.079 | 0.027 |
| -0.5 | 247.5 | 0.0417 | 0.0126 |
| -0.5 | 262.5 | 0.0815 | 0.0219 |
| -0.5 | 277.5 | 0.0282 | 0.0121 |
| -0.3 | 37.5 | 0.0842 | 0.0313 |
| -0.3 | 52.5 | 0.0596 | 0.033 |
| -0.3 | 82.5 | 0.1915 | 0.0483 |
| -0.3 | 97.5 | 0.0506 | 0.017 |
| -0.3 | 112.5 | 0.0857 | 0.0198 |
| -0.3 | 127.5 | 0.0627 | 0.018 |
| -0.3 | 142.5 | 0.095 | 0.0267 |
| -0.3 | 157.5 | 0.0855 | 0.0256 |
| -0.3 | 172.5 | 0.0492 | 0.0126 |
| -0.3 | 187.5 | 0.0811 | 0.0203 |
| -0.3 | 202.5 | 0.0728 | 0.0195 |
| -0.3 | 217.5 | 0.0696 | 0.0226 |
| -0.3 | 232.5 | 0.0832 | 0.0261 |
| -0.3 | 247.5 | 0.0973 | 0.0295 |
| -0.3 | 262.5 | 0.0571 | 0.0196 |
| -0.3 | 277.5 | 0.1274 | 0.0554 |
| -0.3 | 322.5 | 0.0475 | 0.0381 |
| -0.1 | 22.5 | 0.0469 | 0.0223 |
| -0.1 | 37.5 | 0.0603 | 0.0285 |
| -0.1 | 52.5 | 0.184 | 0.0681 |
| -0.1 | 67.5 | 0.1674 | 0.0498 |
| -0.1 | 82.5 | 0.1956 | 0.0542 |
| -0.1 | 97.5 | 0.1434 | 0.0404 |
| -0.1 | 112.5 | 0.2331 | 0.0712 |
| -0.1 | 127.5 | 0.1476 | 0.0397 |
| -0.1 | 142.5 | 0.0966 | 0.0253 |
| -0.1 | 157.5 | 0.0914 | 0.023 |
| -0.1 | 172.5 | 0.0684 | 0.0186 |
| -0.1 | 187.5 | 0.0503 | 0.0124 |
| -0.1 | 202.5 | 0.1022 | 0.0259 |
| -0.1 | 217.5 | 0.045 | 0.0157 |
| -0.1 | 232.5 | 0.0953 | 0.0278 |
| -0.1 | 247.5 | 0.078 | 0.0303 |
| -0.1 | 262.5 | 0.121 | 0.05 |
| -0.1 | 292.5 | 0.1489 | 0.0817 |
| -0.1 | 337.5 | 0.0932 | 0.0748 |
| 0.1 | 52.5 | 0.0737 | 0.0363 |
| 0.1 | 67.5 | 0.0605 | 0.0262 |
| 0.1 | 82.5 | 0.0896 | 0.0307 |
| 0.1 | 112.5 | 0.1266 | 0.0483 |
| 0.1 | 142.5 | 0.0873 | 0.0302 |
| 0.1 | 157.5 | 0.0593 | 0.0211 |
| 0.1 | 172.5 | 0.0409 | 0.0125 |
| 0.1 | 187.5 | 0.0567 | 0.0147 |
| 0.1 | 202.5 | 0.116 | 0.0339 |
| 0.1 | 247.5 | 0.2272 | 0.0941 |
| 0.1 | 262.5 | 0.214 | 0.0983 |
| 0.3 | 22.5 | 0.0416 | 0.0466 |
| 0.3 | 37.5 | 0.1116 | 0.0463 |
| 0.3 | 52.5 | 0.1377 | 0.0484 |
| 0.3 | 67.5 | 0.1728 | 0.0558 |
| 0.3 | 82.5 | 0.1412 | 0.0406 |
| 0.3 | 97.5 | 0.1555 | 0.0543 |
| 0.3 | 112.5 | 0.1273 | 0.0484 |
| 0.3 | 127.5 | 0.1689 | 0.0856 |
| 0.3 | 142.5 | 0.1047 | 0.0492 |
| 0.3 | 157.5 | 0.0623 | 0.0243 |
| 0.3 | 172.5 | 0.0673 | 0.0172 |
| 0.3 | 187.5 | 0.0924 | 0.0225 |
| 0.3 | 217.5 | 0.0805 | 0.0396 |
| 0.3 | 247.5 | 0.1013 | 0.043 |
| 0.3 | 262.5 | 0.1142 | 0.0587 |
| 0.3 | 277.5 | 0.1723 | 0.0576 |
| 0.3 | 292.5 | 0.1811 | 0.0809 |
| 0.3 | 307.5 | 0.2047 | 0.097 |
| 0.3 | 322.5 | 0.113 | 0.0662 |
| 0.5 | 22.5 | 0.0343 | 0.0376 |
| 0.5 | 37.5 | 0.0923 | 0.0379 |
| 0.5 | 52.5 | 0.0903 | 0.0315 |
| 0.5 | 67.5 | 0.1007 | 0.0305 |
| 0.5 | 82.5 | 0.0925 | 0.0298 |
| 0.5 | 97.5 | 0.1304 | 0.0491 |
| 0.5 | 112.5 | 0.1912 | 0.1198 |
| 0.5 | 127.5 | 0.0799 | 0.0339 |
| 0.5 | 142.5 | 0.1379 | 0.0485 |
| 0.5 | 157.5 | 0.0505 | 0.0181 |
| 0.5 | 172.5 | 0.1127 | 0.0285 |
| 0.5 | 187.5 | 0.0877 | 0.0244 |
| 0.5 | 202.5 | 0.0646 | 0.0237 |
| 0.5 | 217.5 | 0.0987 | 0.036 |
| 0.5 | 232.5 | 0.1036 | 0.0374 |
| 0.5 | 262.5 | 0.2019 | 0.0943 |
| 0.5 | 277.5 | 0.1837 | 0.0754 |
| 0.5 | 292.5 | 0.1229 | 0.0555 |
| 0.5 | 307.5 | 0.2249 | 0.1383 |
| 0.5 | 322.5 | 0.1179 | 0.0504 |
| 0.7 | 7.5 | 0.1271 | 0.0748 |
| 0.7 | 22.5 | 0.1596 | 0.0675 |
| 0.7 | 37.5 | 0.1595 | 0.0758 |
| 0.7 | 52.5 | 0.2028 | 0.0685 |
| 0.7 | 67.5 | 0.3311 | 0.1234 |
| 0.7 | 82.5 | 0.224 | 0.0511 |
| 0.7 | 97.5 | 0.1917 | 0.0475 |
| 0.7 | 112.5 | 0.2626 | 0.0841 |
| 0.7 | 127.5 | 0.1799 | 0.0647 |
| 0.7 | 142.5 | 0.2495 | 0.0686 |
| 0.7 | 157.5 | 0.2339 | 0.0659 |
| 0.7 | 172.5 | 0.0835 | 0.018 |
| 0.7 | 187.5 | 0.165 | 0.0429 |
| 0.7 | 202.5 | 0.1548 | 0.0411 |
| 0.7 | 217.5 | 0.1791 | 0.063 |
| 0.7 | 232.5 | 0.1995 | 0.0748 |
| 0.7 | 247.5 | 0.2881 | 0.2641 |
| 0.7 | 262.5 | 0.1785 | 0.0539 |
| 0.7 | 277.5 | 0.171 | 0.0506 |
| 0.7 | 292.5 | 0.1284 | 0.1501 |
| 0.7 | 322.5 | 0.0619 | 0.0414 |
| 0.7 | 337.5 | 0.1504 | 0.0665 |
| 0.7 | 352.5 | 0.107 | 0.0556 |
| 0.9 | 7.5 | 0.3485 | 0.0796 |
| 0.9 | 22.5 | 0.3148 | 0.0799 |
| 0.9 | 37.5 | 0.2202 | 0.0546 |
| 0.9 | 52.5 | 0.2461 | 0.0539 |
| 0.9 | 67.5 | 0.2943 | 0.0721 |
| 0.9 | 82.5 | 0.2561 | 0.0684 |
| 0.9 | 97.5 | 0.2975 | 0.0737 |
| 0.9 | 112.5 | 0.2814 | 0.0855 |
| 0.9 | 127.5 | 0.3436 | 0.0881 |
| 0.9 | 142.5 | 0.4209 | 0.0981 |
| 0.9 | 157.5 | 0.4122 | 0.0951 |
| 0.9 | 172.5 | 0.2758 | 0.053 |
| 0.9 | 187.5 | 0.2207 | 0.0368 |
| 0.9 | 202.5 | 0.3354 | 0.0778 |
| 0.9 | 217.5 | 0.2365 | 0.0498 |
| 0.9 | 232.5 | 0.3206 | 0.0794 |
| 0.9 | 247.5 | 0.3163 | 0.0829 |
| 0.9 | 262.5 | 0.2028 | 0.0491 |
| 0.9 | 277.5 | 0.2692 | 0.0721 |
| 0.9 | 292.5 | 0.3687 | 0.0916 |
| 0.9 | 307.5 | 0.3489 | 0.0952 |
| 0.9 | 322.5 | 0.1439 | 0.0403 |
| 0.9 | 337.5 | 0.3262 | 0.0782 |
| 0.9 | 352.5 | 0.2942 | 0.0686 |
Experiment comment: