Measurement E141M89
| 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: | 1.83 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| -0.9 | 7.5 | 0.0553 | 0.0159 |
| -0.9 | 22.5 | 0.0625 | 0.02 |
| -0.9 | 37.5 | 0.0684 | 0.0202 |
| -0.9 | 52.5 | 0.1114 | 0.0346 |
| -0.9 | 67.5 | 0.0562 | 0.0183 |
| -0.9 | 82.5 | 0.0935 | 0.0374 |
| -0.9 | 97.5 | 0.0597 | 0.0212 |
| -0.9 | 112.5 | 0.0841 | 0.0392 |
| -0.9 | 127.5 | 0.067 | 0.0197 |
| -0.9 | 142.5 | 0.0836 | 0.0283 |
| -0.9 | 157.5 | 0.0564 | 0.0211 |
| -0.9 | 172.5 | 0.0445 | 0.0155 |
| -0.9 | 187.5 | 0.0368 | 0.0125 |
| -0.9 | 202.5 | 0.0829 | 0.0269 |
| -0.9 | 217.5 | 0.0796 | 0.0279 |
| -0.9 | 232.5 | 0.0813 | 0.0255 |
| -0.9 | 247.5 | 0.0634 | 0.0196 |
| -0.9 | 262.5 | 0.0479 | 0.017 |
| -0.9 | 277.5 | 0.0905 | 0.0335 |
| -0.9 | 292.5 | 0.0699 | 0.0201 |
| -0.9 | 307.5 | 0.0741 | 0.0217 |
| -0.9 | 322.5 | 0.059 | 0.0166 |
| -0.9 | 337.5 | 0.0936 | 0.026 |
| -0.9 | 352.5 | 0.0595 | 0.0167 |
| -0.7 | 7.5 | 0.0706 | 0.0172 |
| -0.7 | 22.5 | 0.092 | 0.0283 |
| -0.7 | 37.5 | 0.0809 | 0.0193 |
| -0.7 | 52.5 | 0.093 | 0.0205 |
| -0.7 | 67.5 | 0.0735 | 0.0269 |
| -0.7 | 82.5 | 0.0469 | 0.0139 |
| -0.7 | 97.5 | 0.0719 | 0.0161 |
| -0.7 | 112.5 | 0.0475 | 0.0113 |
| -0.7 | 127.5 | 0.0632 | 0.0145 |
| -0.7 | 142.5 | 0.0372 | 0.0116 |
| -0.7 | 157.5 | 0.0599 | 0.0124 |
| -0.7 | 172.5 | 0.0716 | 0.0148 |
| -0.7 | 187.5 | 0.0482 | 0.0101 |
| -0.7 | 202.5 | 0.0371 | 0.009 |
| -0.7 | 217.5 | 0.0657 | 0.0151 |
| -0.7 | 232.5 | 0.0836 | 0.0192 |
| -0.7 | 247.5 | 0.1069 | 0.022 |
| -0.7 | 262.5 | 0.0703 | 0.0164 |
| -0.7 | 277.5 | 0.0776 | 0.0176 |
| -0.7 | 292.5 | 0.0942 | 0.0224 |
| -0.7 | 307.5 | 0.0764 | 0.0175 |
| -0.7 | 322.5 | 0.085 | 0.0196 |
| -0.7 | 337.5 | 0.0815 | 0.0204 |
| -0.7 | 352.5 | 0.1062 | 0.0239 |
| -0.5 | 22.5 | 0.0545 | 0.0233 |
| -0.5 | 37.5 | 0.0797 | 0.0209 |
| -0.5 | 52.5 | 0.0706 | 0.0196 |
| -0.5 | 67.5 | 0.094 | 0.0219 |
| -0.5 | 82.5 | 0.069 | 0.0145 |
| -0.5 | 97.5 | 0.0598 | 0.011 |
| -0.5 | 112.5 | 0.0732 | 0.014 |
| -0.5 | 127.5 | 0.0644 | 0.0197 |
| -0.5 | 142.5 | 0.0496 | 0.0128 |
| -0.5 | 157.5 | 0.0363 | 0.0113 |
| -0.5 | 172.5 | 0.037 | 0.0092 |
| -0.5 | 187.5 | 0.0301 | 0.0075 |
| -0.5 | 202.5 | 0.0559 | 0.0173 |
| -0.5 | 217.5 | 0.0548 | 0.0126 |
| -0.5 | 232.5 | 0.0626 | 0.0141 |
| -0.5 | 247.5 | 0.0679 | 0.0152 |
| -0.5 | 262.5 | 0.0436 | 0.0091 |
| -0.5 | 277.5 | 0.0342 | 0.0101 |
| -0.5 | 292.5 | 0.0723 | 0.0167 |
| -0.5 | 307.5 | 0.0606 | 0.0207 |
| -0.5 | 322.5 | 0.0851 | 0.0266 |
| -0.5 | 337.5 | 0.0616 | 0.0296 |
| -0.5 | 352.5 | 0.0378 | 0.0177 |
| -0.3 | 7.5 | 0.0623 | 0.0697 |
| -0.3 | 22.5 | 0.0714 | 0.0222 |
| -0.3 | 37.5 | 0.089 | 0.0218 |
| -0.3 | 52.5 | 0.101 | 0.0279 |
| -0.3 | 67.5 | 0.0889 | 0.0365 |
| -0.3 | 82.5 | 0.0866 | 0.0199 |
| -0.3 | 97.5 | 0.0842 | 0.0157 |
| -0.3 | 112.5 | 0.1216 | 0.0237 |
| -0.3 | 127.5 | 0.0943 | 0.0199 |
| -0.3 | 142.5 | 0.0682 | 0.0162 |
| -0.3 | 157.5 | 0.0858 | 0.0219 |
| -0.3 | 172.5 | 0.0526 | 0.0096 |
| -0.3 | 187.5 | 0.0549 | 0.0104 |
| -0.3 | 202.5 | 0.0575 | 0.0145 |
| -0.3 | 217.5 | 0.0732 | 0.0172 |
| -0.3 | 232.5 | 0.0845 | 0.0161 |
| -0.3 | 247.5 | 0.098 | 0.0179 |
| -0.3 | 262.5 | 0.1012 | 0.0184 |
| -0.3 | 277.5 | 0.0665 | 0.0174 |
| -0.3 | 292.5 | 0.099 | 0.0422 |
| -0.1 | 22.5 | 0.052 | 0.0193 |
| -0.1 | 37.5 | 0.062 | 0.022 |
| -0.1 | 52.5 | 0.08 | 0.0274 |
| -0.1 | 67.5 | 0.0752 | 0.0231 |
| -0.1 | 82.5 | 0.1426 | 0.0287 |
| -0.1 | 97.5 | 0.0753 | 0.0141 |
| -0.1 | 112.5 | 0.1138 | 0.0183 |
| -0.1 | 127.5 | 0.1362 | 0.0243 |
| -0.1 | 142.5 | 0.1348 | 0.025 |
| -0.1 | 157.5 | 0.1052 | 0.0211 |
| -0.1 | 172.5 | 0.0736 | 0.0112 |
| -0.1 | 187.5 | 0.0541 | 0.0092 |
| -0.1 | 202.5 | 0.0928 | 0.0207 |
| -0.1 | 217.5 | 0.1281 | 0.0291 |
| -0.1 | 232.5 | 0.1405 | 0.0256 |
| -0.1 | 247.5 | 0.1155 | 0.0239 |
| -0.1 | 262.5 | 0.0718 | 0.0177 |
| -0.1 | 277.5 | 0.1408 | 0.0457 |
| -0.1 | 292.5 | 0.1817 | 0.0601 |
| -0.1 | 307.5 | 0.1119 | 0.0625 |
| 0.1 | 22.5 | 0.0685 | 0.0296 |
| 0.1 | 52.5 | 0.1755 | 0.0479 |
| 0.1 | 67.5 | 0.137 | 0.0324 |
| 0.1 | 82.5 | 0.1223 | 0.0261 |
| 0.1 | 97.5 | 0.169 | 0.0426 |
| 0.1 | 112.5 | 0.1121 | 0.0322 |
| 0.1 | 127.5 | 0.1718 | 0.0429 |
| 0.1 | 142.5 | 0.0903 | 0.0236 |
| 0.1 | 157.5 | 0.0796 | 0.0168 |
| 0.1 | 172.5 | 0.0255 | 0.0057 |
| 0.1 | 187.5 | 0.0366 | 0.0068 |
| 0.1 | 202.5 | 0.0752 | 0.0168 |
| 0.1 | 217.5 | 0.1116 | 0.0271 |
| 0.1 | 232.5 | 0.1073 | 0.0327 |
| 0.1 | 247.5 | 0.0738 | 0.0343 |
| 0.1 | 262.5 | 0.1317 | 0.0499 |
| 0.1 | 277.5 | 0.1797 | 0.0613 |
| 0.1 | 292.5 | 0.1205 | 0.0318 |
| 0.1 | 307.5 | 0.102 | 0.0491 |
| 0.3 | 22.5 | 0.0947 | 0.0896 |
| 0.3 | 37.5 | 0.1258 | 0.0343 |
| 0.3 | 52.5 | 0.1742 | 0.0624 |
| 0.3 | 67.5 | 0.1407 | 0.0307 |
| 0.3 | 82.5 | 0.1479 | 0.0351 |
| 0.3 | 97.5 | 0.1758 | 0.0476 |
| 0.3 | 112.5 | 0.2147 | 0.0715 |
| 0.3 | 127.5 | 0.1377 | 0.0592 |
| 0.3 | 142.5 | 0.1204 | 0.028 |
| 0.3 | 157.5 | 0.0342 | 0.0103 |
| 0.3 | 172.5 | 0.105 | 0.0142 |
| 0.3 | 187.5 | 0.0532 | 0.0093 |
| 0.3 | 202.5 | 0.0725 | 0.0139 |
| 0.3 | 217.5 | 0.0633 | 0.0187 |
| 0.3 | 232.5 | 0.1808 | 0.0561 |
| 0.3 | 247.5 | 0.1938 | 0.0756 |
| 0.3 | 262.5 | 0.141 | 0.0685 |
| 0.3 | 277.5 | 0.1768 | 0.0521 |
| 0.3 | 292.5 | 0.0934 | 0.0326 |
| 0.3 | 307.5 | 0.1086 | 0.039 |
| 0.3 | 322.5 | 0.1411 | 0.0557 |
| 0.5 | 22.5 | 0.1103 | 0.0426 |
| 0.5 | 37.5 | 0.1278 | 0.0297 |
| 0.5 | 52.5 | 0.1842 | 0.0376 |
| 0.5 | 67.5 | 0.2902 | 0.0574 |
| 0.5 | 82.5 | 0.2272 | 0.0506 |
| 0.5 | 97.5 | 0.1583 | 0.0446 |
| 0.5 | 112.5 | 0.1573 | 0.0476 |
| 0.5 | 127.5 | 0.2173 | 0.0533 |
| 0.5 | 142.5 | 0.2104 | 0.05 |
| 0.5 | 157.5 | 0.1056 | 0.0244 |
| 0.5 | 172.5 | 0.1134 | 0.0207 |
| 0.5 | 187.5 | 0.0883 | 0.0179 |
| 0.5 | 202.5 | 0.1917 | 0.0407 |
| 0.5 | 217.5 | 0.1384 | 0.0381 |
| 0.5 | 232.5 | 0.1115 | 0.037 |
| 0.5 | 247.5 | 0.2238 | 0.085 |
| 0.5 | 262.5 | 0.1912 | 0.0575 |
| 0.5 | 277.5 | 0.1256 | 0.035 |
| 0.5 | 292.5 | 0.1886 | 0.0534 |
| 0.5 | 307.5 | 0.1544 | 0.05 |
| 0.5 | 322.5 | 0.1517 | 0.0477 |
| 0.5 | 337.5 | 0.1084 | 0.0714 |
| 0.7 | 7.5 | 0.203 | 0.0672 |
| 0.7 | 22.5 | 0.0658 | 0.0294 |
| 0.7 | 37.5 | 0.2514 | 0.0643 |
| 0.7 | 52.5 | 0.1994 | 0.0441 |
| 0.7 | 67.5 | 0.2135 | 0.0494 |
| 0.7 | 82.5 | 0.1955 | 0.0417 |
| 0.7 | 97.5 | 0.221 | 0.0464 |
| 0.7 | 112.5 | 0.43 | 0.0846 |
| 0.7 | 127.5 | 0.3313 | 0.0723 |
| 0.7 | 142.5 | 0.7074 | 0.1729 |
| 0.7 | 157.5 | 0.3768 | 0.1177 |
| 0.7 | 172.5 | 0.3286 | 0.0591 |
| 0.7 | 187.5 | 0.2978 | 0.0528 |
| 0.7 | 202.5 | 0.3725 | 0.0683 |
| 0.7 | 217.5 | 0.1834 | 0.0349 |
| 0.7 | 232.5 | 0.4067 | 0.0871 |
| 0.7 | 247.5 | 0.3142 | 0.072 |
| 0.7 | 262.5 | 0.2832 | 0.0678 |
| 0.7 | 277.5 | 0.2273 | 0.0593 |
| 0.7 | 292.5 | 0.2019 | 0.1042 |
| 0.7 | 307.5 | 0.1659 | 0.0539 |
| 0.7 | 322.5 | 0.212 | 0.1385 |
| 0.7 | 337.5 | 0.1038 | 0.0365 |
| 0.7 | 352.5 | 0.2124 | 0.0543 |
| 0.9 | 7.5 | 0.4441 | 0.0576 |
| 0.9 | 22.5 | 0.387 | 0.0479 |
| 0.9 | 37.5 | 0.2479 | 0.0369 |
| 0.9 | 52.5 | 0.2303 | 0.0333 |
| 0.9 | 67.5 | 0.2579 | 0.0382 |
| 0.9 | 82.5 | 0.3277 | 0.099 |
| 0.9 | 97.5 | 0.3061 | 0.0807 |
| 0.9 | 112.5 | 0.296 | 0.0463 |
| 0.9 | 127.5 | 0.4641 | 0.0687 |
| 0.9 | 142.5 | 0.4185 | 0.0577 |
| 0.9 | 157.5 | 0.2898 | 0.0358 |
| 0.9 | 172.5 | 0.3023 | 0.0371 |
| 0.9 | 187.5 | 0.3678 | 0.0469 |
| 0.9 | 202.5 | 0.3795 | 0.0459 |
| 0.9 | 217.5 | 0.305 | 0.0411 |
| 0.9 | 232.5 | 0.3295 | 0.0446 |
| 0.9 | 247.5 | 0.4267 | 0.0592 |
| 0.9 | 262.5 | 0.4101 | 0.0607 |
| 0.9 | 277.5 | 0.2537 | 0.0437 |
| 0.9 | 292.5 | 0.3275 | 0.0467 |
| 0.9 | 307.5 | 0.29 | 0.0423 |
| 0.9 | 322.5 | 0.2383 | 0.0327 |
| 0.9 | 337.5 | 0.3301 | 0.0449 |
| 0.9 | 352.5 | 0.311 | 0.0427 |
Experiment comment: