Measurement E141M45
| 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: | 2.2 GeV2 | |
| W: | 1.95 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| -0.9 | 7.5 | 0.0506 | 0.0121 |
| -0.9 | 22.5 | 0.0693 | 0.0197 |
| -0.9 | 37.5 | 0.0595 | 0.0161 |
| -0.9 | 52.5 | 0.0871 | 0.0195 |
| -0.9 | 67.5 | 0.0952 | 0.0238 |
| -0.9 | 82.5 | 0.1134 | 0.0304 |
| -0.9 | 97.5 | 0.0718 | 0.021 |
| -0.9 | 112.5 | 0.0772 | 0.0196 |
| -0.9 | 127.5 | 0.0467 | 0.0138 |
| -0.9 | 142.5 | 0.0857 | 0.0338 |
| -0.9 | 157.5 | 0.0347 | 0.0135 |
| -0.9 | 172.5 | 0.0632 | 0.0175 |
| -0.9 | 187.5 | 0.0506 | 0.0137 |
| -0.9 | 202.5 | 0.0344 | 0.0131 |
| -0.9 | 217.5 | 0.0546 | 0.0214 |
| -0.9 | 232.5 | 0.0362 | 0.0121 |
| -0.9 | 247.5 | 0.0458 | 0.0132 |
| -0.9 | 262.5 | 0.0861 | 0.023 |
| -0.9 | 277.5 | 0.1323 | 0.0331 |
| -0.9 | 292.5 | 0.0256 | 0.0159 |
| -0.9 | 307.5 | 0.07 | 0.0162 |
| -0.9 | 322.5 | 0.045 | 0.013 |
| -0.9 | 337.5 | 0.0822 | 0.0195 |
| -0.9 | 352.5 | 0.0411 | 0.0111 |
| -0.7 | 7.5 | 0.087 | 0.017 |
| -0.7 | 22.5 | 0.087 | 0.0184 |
| -0.7 | 37.5 | 0.0745 | 0.0151 |
| -0.7 | 52.5 | 0.0913 | 0.0152 |
| -0.7 | 67.5 | 0.1191 | 0.0192 |
| -0.7 | 82.5 | 0.1093 | 0.0258 |
| -0.7 | 97.5 | 0.0849 | 0.0154 |
| -0.7 | 112.5 | 0.0937 | 0.0145 |
| -0.7 | 127.5 | 0.0697 | 0.0123 |
| -0.7 | 142.5 | 0.0739 | 0.0155 |
| -0.7 | 157.5 | 0.0291 | 0.0084 |
| -0.7 | 172.5 | 0.0307 | 0.0078 |
| -0.7 | 187.5 | 0.0432 | 0.011 |
| -0.7 | 202.5 | 0.0534 | 0.0123 |
| -0.7 | 217.5 | 0.0598 | 0.0125 |
| -0.7 | 232.5 | 0.0966 | 0.0156 |
| -0.7 | 247.5 | 0.0832 | 0.0139 |
| -0.7 | 262.5 | 0.05 | 0.0136 |
| -0.7 | 277.5 | 0.0756 | 0.0199 |
| -0.7 | 292.5 | 0.112 | 0.0188 |
| -0.7 | 307.5 | 0.1095 | 0.0171 |
| -0.7 | 322.5 | 0.0997 | 0.0177 |
| -0.7 | 337.5 | 0.0899 | 0.0191 |
| -0.7 | 352.5 | 0.0706 | 0.0134 |
| -0.5 | 7.5 | 0.0556 | 0.0127 |
| -0.5 | 22.5 | 0.0926 | 0.0222 |
| -0.5 | 37.5 | 0.0753 | 0.0127 |
| -0.5 | 52.5 | 0.0852 | 0.015 |
| -0.5 | 67.5 | 0.1469 | 0.0223 |
| -0.5 | 82.5 | 0.1111 | 0.0183 |
| -0.5 | 97.5 | 0.0801 | 0.013 |
| -0.5 | 112.5 | 0.0619 | 0.0105 |
| -0.5 | 127.5 | 0.0369 | 0.0073 |
| -0.5 | 142.5 | 0.0309 | 0.0078 |
| -0.5 | 157.5 | 0.0227 | 0.006 |
| -0.5 | 172.5 | 0.0186 | 0.0044 |
| -0.5 | 187.5 | 0.0219 | 0.0048 |
| -0.5 | 202.5 | 0.023 | 0.0063 |
| -0.5 | 217.5 | 0.0293 | 0.0068 |
| -0.5 | 232.5 | 0.0529 | 0.0089 |
| -0.5 | 247.5 | 0.101 | 0.0146 |
| -0.5 | 262.5 | 0.0674 | 0.0115 |
| -0.5 | 277.5 | 0.0777 | 0.0149 |
| -0.5 | 292.5 | 0.0767 | 0.0142 |
| -0.5 | 307.5 | 0.0876 | 0.0146 |
| -0.5 | 322.5 | 0.0601 | 0.0116 |
| -0.5 | 337.5 | 0.0903 | 0.0234 |
| -0.5 | 352.5 | 0.1038 | 0.0203 |
| -0.3 | 22.5 | 0.0246 | 0.0166 |
| -0.3 | 37.5 | 0.0393 | 0.0113 |
| -0.3 | 52.5 | 0.0878 | 0.0176 |
| -0.3 | 67.5 | 0.0689 | 0.0185 |
| -0.3 | 82.5 | 0.049 | 0.0111 |
| -0.3 | 97.5 | 0.0778 | 0.0139 |
| -0.3 | 112.5 | 0.0443 | 0.008 |
| -0.3 | 127.5 | 0.0536 | 0.0099 |
| -0.3 | 142.5 | 0.0388 | 0.0087 |
| -0.3 | 157.5 | 0.0341 | 0.007 |
| -0.3 | 172.5 | 0.0201 | 0.0038 |
| -0.3 | 187.5 | 0.0229 | 0.0042 |
| -0.3 | 202.5 | 0.0286 | 0.0061 |
| -0.3 | 217.5 | 0.0323 | 0.0073 |
| -0.3 | 232.5 | 0.0512 | 0.0095 |
| -0.3 | 247.5 | 0.0672 | 0.0108 |
| -0.3 | 262.5 | 0.0828 | 0.0133 |
| -0.3 | 277.5 | 0.0834 | 0.0154 |
| -0.3 | 292.5 | 0.0665 | 0.0181 |
| -0.3 | 307.5 | 0.1357 | 0.04 |
| -0.3 | 322.5 | 0.0562 | 0.0264 |
| -0.3 | 352.5 | 0.023 | 0.0106 |
| -0.1 | 22.5 | 0.0657 | 0.0172 |
| -0.1 | 37.5 | 0.0784 | 0.0157 |
| -0.1 | 52.5 | 0.0742 | 0.0277 |
| -0.1 | 67.5 | 0.0635 | 0.0231 |
| -0.1 | 82.5 | 0.0793 | 0.0155 |
| -0.1 | 97.5 | 0.0871 | 0.0149 |
| -0.1 | 112.5 | 0.0785 | 0.0118 |
| -0.1 | 127.5 | 0.0651 | 0.0132 |
| -0.1 | 142.5 | 0.0442 | 0.0089 |
| -0.1 | 157.5 | 0.0323 | 0.0059 |
| -0.1 | 172.5 | 0.0332 | 0.0055 |
| -0.1 | 187.5 | 0.0369 | 0.0058 |
| -0.1 | 202.5 | 0.0429 | 0.0071 |
| -0.1 | 217.5 | 0.0385 | 0.0082 |
| -0.1 | 232.5 | 0.052 | 0.0102 |
| -0.1 | 247.5 | 0.0649 | 0.0106 |
| -0.1 | 262.5 | 0.0859 | 0.0147 |
| -0.1 | 277.5 | 0.0929 | 0.0224 |
| -0.1 | 292.5 | 0.0925 | 0.0348 |
| 0.1 | 22.5 | 0.0796 | 0.0272 |
| 0.1 | 37.5 | 0.0875 | 0.0319 |
| 0.1 | 67.5 | 0.1485 | 0.0365 |
| 0.1 | 82.5 | 0.1487 | 0.0464 |
| 0.1 | 97.5 | 0.1603 | 0.0361 |
| 0.1 | 112.5 | 0.104 | 0.0275 |
| 0.1 | 127.5 | 0.0595 | 0.0139 |
| 0.1 | 142.5 | 0.0404 | 0.0094 |
| 0.1 | 157.5 | 0.0382 | 0.0089 |
| 0.1 | 172.5 | 0.0474 | 0.0081 |
| 0.1 | 187.5 | 0.0349 | 0.0067 |
| 0.1 | 202.5 | 0.0558 | 0.0106 |
| 0.1 | 217.5 | 0.0691 | 0.0132 |
| 0.1 | 232.5 | 0.0834 | 0.0126 |
| 0.1 | 247.5 | 0.1 | 0.0265 |
| 0.1 | 262.5 | 0.0877 | 0.0364 |
| 0.1 | 277.5 | 0.1354 | 0.0527 |
| 0.1 | 307.5 | 0.2222 | 0.1059 |
| 0.1 | 337.5 | 0.183 | 0.0863 |
| 0.3 | 22.5 | 0.0511 | 0.02 |
| 0.3 | 37.5 | 0.1391 | 0.0423 |
| 0.3 | 52.5 | 0.1561 | 0.0414 |
| 0.3 | 67.5 | 0.2173 | 0.038 |
| 0.3 | 82.5 | 0.1764 | 0.0353 |
| 0.3 | 97.5 | 0.2017 | 0.0443 |
| 0.3 | 112.5 | 0.1299 | 0.035 |
| 0.3 | 127.5 | 0.1999 | 0.0442 |
| 0.3 | 142.5 | 0.0807 | 0.0153 |
| 0.3 | 157.5 | 0.0909 | 0.0165 |
| 0.3 | 172.5 | 0.0784 | 0.0107 |
| 0.3 | 187.5 | 0.0764 | 0.0106 |
| 0.3 | 202.5 | 0.0607 | 0.0123 |
| 0.3 | 217.5 | 0.0513 | 0.0106 |
| 0.3 | 232.5 | 0.1177 | 0.0326 |
| 0.3 | 247.5 | 0.1451 | 0.069 |
| 0.3 | 262.5 | 0.1661 | 0.058 |
| 0.3 | 277.5 | 0.1989 | 0.0626 |
| 0.3 | 292.5 | 0.1499 | 0.0403 |
| 0.3 | 307.5 | 0.2235 | 0.0623 |
| 0.3 | 322.5 | 0.1714 | 0.0749 |
| 0.5 | 22.5 | 0.0598 | 0.0184 |
| 0.5 | 37.5 | 0.1413 | 0.0226 |
| 0.5 | 52.5 | 0.2259 | 0.0353 |
| 0.5 | 67.5 | 0.2418 | 0.038 |
| 0.5 | 82.5 | 0.3187 | 0.0461 |
| 0.5 | 97.5 | 0.2201 | 0.043 |
| 0.5 | 112.5 | 0.3254 | 0.0586 |
| 0.5 | 127.5 | 0.1519 | 0.032 |
| 0.5 | 142.5 | 0.2092 | 0.0431 |
| 0.5 | 157.5 | 0.2428 | 0.0387 |
| 0.5 | 172.5 | 0.1702 | 0.0238 |
| 0.5 | 187.5 | 0.1352 | 0.0192 |
| 0.5 | 202.5 | 0.1739 | 0.0292 |
| 0.5 | 217.5 | 0.236 | 0.0451 |
| 0.5 | 232.5 | 0.1545 | 0.0389 |
| 0.5 | 247.5 | 0.3006 | 0.0612 |
| 0.5 | 262.5 | 0.2357 | 0.0503 |
| 0.5 | 277.5 | 0.3206 | 0.0649 |
| 0.5 | 292.5 | 0.132 | 0.0412 |
| 0.5 | 307.5 | 0.1906 | 0.0399 |
| 0.5 | 322.5 | 0.0839 | 0.0213 |
| 0.5 | 337.5 | 0.063 | 0.0304 |
| 0.7 | 7.5 | 0.0919 | 0.0317 |
| 0.7 | 22.5 | 0.08 | 0.0185 |
| 0.7 | 37.5 | 0.1076 | 0.0161 |
| 0.7 | 52.5 | 0.1739 | 0.0256 |
| 0.7 | 67.5 | 0.2675 | 0.0407 |
| 0.7 | 82.5 | 0.3051 | 0.0531 |
| 0.7 | 97.5 | 0.2484 | 0.08 |
| 0.7 | 112.5 | 0.3328 | 0.0567 |
| 0.7 | 127.5 | 0.3256 | 0.0519 |
| 0.7 | 142.5 | 0.4997 | 0.0875 |
| 0.7 | 157.5 | 0.6235 | 0.108 |
| 0.7 | 172.5 | 0.5097 | 0.074 |
| 0.7 | 187.5 | 0.5204 | 0.099 |
| 0.7 | 202.5 | 0.4741 | 0.0766 |
| 0.7 | 217.5 | 0.4927 | 0.0831 |
| 0.7 | 232.5 | 0.3701 | 0.0642 |
| 0.7 | 247.5 | 0.3273 | 0.0598 |
| 0.7 | 262.5 | 0.1974 | 0.0865 |
| 0.7 | 277.5 | 0.3032 | 0.065 |
| 0.7 | 292.5 | 0.2001 | 0.0403 |
| 0.7 | 307.5 | 0.1827 | 0.0371 |
| 0.7 | 322.5 | 0.0657 | 0.0152 |
| 0.7 | 337.5 | 0.073 | 0.025 |
| 0.9 | 7.5 | 0.2572 | 0.0214 |
| 0.9 | 22.5 | 0.2244 | 0.0226 |
| 0.9 | 37.5 | 0.2428 | 0.0235 |
| 0.9 | 52.5 | 0.2513 | 0.025 |
| 0.9 | 67.5 | 0.3374 | 0.033 |
| 0.9 | 82.5 | 0.3205 | 0.0341 |
| 0.9 | 97.5 | 0.432 | 0.0439 |
| 0.9 | 112.5 | 0.3256 | 0.0324 |
| 0.9 | 127.5 | 0.3309 | 0.0299 |
| 0.9 | 142.5 | 0.4269 | 0.0364 |
| 0.9 | 157.5 | 0.3856 | 0.0338 |
| 0.9 | 172.5 | 0.2561 | 0.0232 |
| 0.9 | 217.5 | 0.4008 | 0.0354 |
| 0.9 | 232.5 | 0.274 | 0.0253 |
| 0.9 | 247.5 | 0.3501 | 0.032 |
| 0.9 | 262.5 | 0.3336 | 0.0344 |
| 0.9 | 277.5 | 0.4201 | 0.0435 |
| 0.9 | 292.5 | 0.3157 | 0.0319 |
| 0.9 | 307.5 | 0.3407 | 0.032 |
| 0.9 | 322.5 | 0.2478 | 0.0236 |
| 0.9 | 337.5 | 0.2801 | 0.0246 |
| 0.9 | 352.5 | 0.2882 | 0.0241 |
Experiment comment: