Measurement E141M23
| 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: | 1.8 GeV2 | |
| W: | 2.01 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| -0.9 | 7.5 | 0.0299 | 0.0074 |
| -0.9 | 22.5 | 0.0288 | 0.0098 |
| -0.9 | 37.5 | 0.037 | 0.0106 |
| -0.9 | 52.5 | 0.0453 | 0.0109 |
| -0.9 | 67.5 | 0.0522 | 0.0127 |
| -0.9 | 82.5 | 0.0304 | 0.0091 |
| -0.9 | 97.5 | 0.0366 | 0.0123 |
| -0.9 | 112.5 | 0.0342 | 0.0088 |
| -0.9 | 127.5 | 0.0279 | 0.0078 |
| -0.9 | 142.5 | 0.0303 | 0.0111 |
| -0.9 | 172.5 | 0.0117 | 0.0064 |
| -0.9 | 187.5 | 0.0361 | 0.0121 |
| -0.9 | 202.5 | 0.0282 | 0.0121 |
| -0.9 | 217.5 | 0.0249 | 0.0092 |
| -0.9 | 232.5 | 0.0275 | 0.009 |
| -0.9 | 247.5 | 0.0362 | 0.0099 |
| -0.9 | 262.5 | 0.0524 | 0.0204 |
| -0.9 | 277.5 | 0.0507 | 0.0206 |
| -0.9 | 292.5 | 0.0362 | 0.0112 |
| -0.9 | 307.5 | 0.0328 | 0.0085 |
| -0.9 | 322.5 | 0.0318 | 0.0098 |
| -0.9 | 337.5 | 0.0198 | 0.0069 |
| -0.9 | 352.5 | 0.0298 | 0.0074 |
| -0.7 | 7.5 | 0.0609 | 0.0119 |
| -0.7 | 22.5 | 0.051 | 0.0118 |
| -0.7 | 37.5 | 0.074 | 0.0148 |
| -0.7 | 52.5 | 0.0914 | 0.0149 |
| -0.7 | 67.5 | 0.1068 | 0.0177 |
| -0.7 | 82.5 | 0.1134 | 0.0226 |
| -0.7 | 97.5 | 0.0715 | 0.0143 |
| -0.7 | 112.5 | 0.0595 | 0.0102 |
| -0.7 | 127.5 | 0.058 | 0.011 |
| -0.7 | 142.5 | 0.0417 | 0.0098 |
| -0.7 | 157.5 | 0.0272 | 0.0065 |
| -0.7 | 172.5 | 0.0164 | 0.0042 |
| -0.7 | 187.5 | 0.0167 | 0.0044 |
| -0.7 | 202.5 | 0.0131 | 0.0042 |
| -0.7 | 217.5 | 0.0358 | 0.0083 |
| -0.7 | 232.5 | 0.0444 | 0.0089 |
| -0.7 | 247.5 | 0.0901 | 0.0151 |
| -0.7 | 262.5 | 0.0767 | 0.013 |
| -0.7 | 277.5 | 0.0928 | 0.0171 |
| -0.7 | 292.5 | 0.092 | 0.0149 |
| -0.7 | 307.5 | 0.0955 | 0.0136 |
| -0.7 | 322.5 | 0.0869 | 0.015 |
| -0.7 | 337.5 | 0.0704 | 0.0158 |
| -0.7 | 352.5 | 0.0562 | 0.0116 |
| -0.5 | 7.5 | 0.0718 | 0.0143 |
| -0.5 | 22.5 | 0.0742 | 0.0163 |
| -0.5 | 37.5 | 0.0607 | 0.0119 |
| -0.5 | 52.5 | 0.0778 | 0.0132 |
| -0.5 | 67.5 | 0.0726 | 0.0139 |
| -0.5 | 82.5 | 0.0466 | 0.0094 |
| -0.5 | 97.5 | 0.0689 | 0.0116 |
| -0.5 | 112.5 | 0.0452 | 0.0073 |
| -0.5 | 127.5 | 0.04 | 0.008 |
| -0.5 | 142.5 | 0.0171 | 0.0056 |
| -0.5 | 157.5 | 0.0164 | 0.004 |
| -0.5 | 172.5 | 0.0117 | 0.0028 |
| -0.5 | 187.5 | 0.007 | 0.002 |
| -0.5 | 202.5 | 0.0104 | 0.0031 |
| -0.5 | 217.5 | 0.016 | 0.0044 |
| -0.5 | 232.5 | 0.0437 | 0.0079 |
| -0.5 | 247.5 | 0.0423 | 0.007 |
| -0.5 | 262.5 | 0.0481 | 0.0081 |
| -0.5 | 277.5 | 0.0767 | 0.0133 |
| -0.5 | 292.5 | 0.0789 | 0.0131 |
| -0.5 | 307.5 | 0.053 | 0.0091 |
| -0.5 | 322.5 | 0.0562 | 0.0105 |
| -0.5 | 337.5 | 0.0658 | 0.0169 |
| -0.5 | 352.5 | 0.0589 | 0.012 |
| -0.3 | 7.5 | 0.038 | 0.0113 |
| -0.3 | 22.5 | 0.0845 | 0.0252 |
| -0.3 | 37.5 | 0.0714 | 0.0148 |
| -0.3 | 52.5 | 0.0498 | 0.0107 |
| -0.3 | 67.5 | 0.0684 | 0.0146 |
| -0.3 | 82.5 | 0.0507 | 0.0102 |
| -0.3 | 97.5 | 0.0646 | 0.0123 |
| -0.3 | 112.5 | 0.0309 | 0.006 |
| -0.3 | 127.5 | 0.034 | 0.0072 |
| -0.3 | 142.5 | 0.0179 | 0.0051 |
| -0.3 | 157.5 | 0.0244 | 0.0049 |
| -0.3 | 172.5 | 0.023 | 0.004 |
| -0.3 | 187.5 | 0.0209 | 0.0037 |
| -0.3 | 202.5 | 0.0219 | 0.0043 |
| -0.3 | 217.5 | 0.0206 | 0.0054 |
| -0.3 | 232.5 | 0.0194 | 0.0051 |
| -0.3 | 247.5 | 0.0368 | 0.0067 |
| -0.3 | 262.5 | 0.0587 | 0.0099 |
| -0.3 | 277.5 | 0.089 | 0.0175 |
| -0.3 | 292.5 | 0.0567 | 0.0126 |
| -0.3 | 307.5 | 0.0498 | 0.0137 |
| -0.3 | 322.5 | 0.0421 | 0.02 |
| -0.3 | 352.5 | 0.027 | 0.0091 |
| -0.1 | 7.5 | 0.0419 | 0.0175 |
| -0.1 | 22.5 | 0.0634 | 0.0177 |
| -0.1 | 37.5 | 0.0511 | 0.012 |
| -0.1 | 52.5 | 0.1006 | 0.0198 |
| -0.1 | 67.5 | 0.0732 | 0.0207 |
| -0.1 | 82.5 | 0.0652 | 0.0131 |
| -0.1 | 97.5 | 0.0626 | 0.0103 |
| -0.1 | 112.5 | 0.0547 | 0.0089 |
| -0.1 | 127.5 | 0.0468 | 0.0093 |
| -0.1 | 142.5 | 0.0388 | 0.0082 |
| -0.1 | 157.5 | 0.0419 | 0.0066 |
| -0.1 | 172.5 | 0.0399 | 0.0051 |
| -0.1 | 187.5 | 0.0492 | 0.0059 |
| -0.1 | 202.5 | 0.0424 | 0.0069 |
| -0.1 | 217.5 | 0.042 | 0.0071 |
| -0.1 | 232.5 | 0.0398 | 0.0077 |
| -0.1 | 247.5 | 0.0454 | 0.0078 |
| -0.1 | 262.5 | 0.0575 | 0.0106 |
| -0.1 | 277.5 | 0.0659 | 0.0139 |
| 0.1 | 22.5 | 0.0548 | 0.0189 |
| 0.1 | 37.5 | 0.1143 | 0.031 |
| 0.1 | 52.5 | 0.1025 | 0.0356 |
| 0.1 | 67.5 | 0.0867 | 0.0284 |
| 0.1 | 82.5 | 0.122 | 0.0406 |
| 0.1 | 97.5 | 0.1176 | 0.0259 |
| 0.1 | 112.5 | 0.1183 | 0.0228 |
| 0.1 | 127.5 | 0.1007 | 0.0168 |
| 0.1 | 142.5 | 0.0485 | 0.0102 |
| 0.1 | 157.5 | 0.0933 | 0.0158 |
| 0.1 | 172.5 | 0.0898 | 0.0128 |
| 0.1 | 187.5 | 0.0658 | 0.0098 |
| 0.1 | 202.5 | 0.0897 | 0.0151 |
| 0.1 | 217.5 | 0.0845 | 0.0139 |
| 0.1 | 232.5 | 0.0566 | 0.013 |
| 0.1 | 247.5 | 0.0761 | 0.0195 |
| 0.1 | 262.5 | 0.1346 | 0.0341 |
| 0.1 | 277.5 | 0.1275 | 0.0466 |
| 0.1 | 292.5 | 0.1715 | 0.0752 |
| 0.3 | 22.5 | 0.0413 | 0.0087 |
| 0.3 | 37.5 | 0.0969 | 0.0228 |
| 0.3 | 52.5 | 0.1605 | 0.0375 |
| 0.3 | 67.5 | 0.1348 | 0.0291 |
| 0.3 | 82.5 | 0.1791 | 0.0336 |
| 0.3 | 97.5 | 0.2593 | 0.0713 |
| 0.3 | 112.5 | 0.255 | 0.0446 |
| 0.3 | 127.5 | 0.2008 | 0.0365 |
| 0.3 | 157.5 | 0.1165 | 0.0186 |
| 0.3 | 172.5 | 0.1826 | 0.0208 |
| 0.3 | 187.5 | 0.1583 | 0.0194 |
| 0.3 | 202.5 | 0.1625 | 0.0248 |
| 0.3 | 217.5 | 0.1362 | 0.0261 |
| 0.3 | 232.5 | 0.0991 | 0.0258 |
| 0.3 | 262.5 | 0.2224 | 0.0756 |
| 0.3 | 277.5 | 0.2478 | 0.0714 |
| 0.3 | 292.5 | 0.1907 | 0.0512 |
| 0.3 | 307.5 | 0.1314 | 0.0407 |
| 0.3 | 337.5 | 0.0691 | 0.0263 |
| 0.5 | 37.5 | 0.0729 | 0.0136 |
| 0.5 | 52.5 | 0.2109 | 0.0299 |
| 0.5 | 67.5 | 0.1977 | 0.0303 |
| 0.5 | 82.5 | 0.1658 | 0.0504 |
| 0.5 | 97.5 | 0.2291 | 0.0351 |
| 0.5 | 112.5 | 0.2645 | 0.0432 |
| 0.5 | 127.5 | 0.2973 | 0.0627 |
| 0.5 | 142.5 | 0.2095 | 0.0368 |
| 0.5 | 157.5 | 0.1958 | 0.0308 |
| 0.5 | 172.5 | 0.1297 | 0.0166 |
| 0.5 | 187.5 | 0.1337 | 0.0171 |
| 0.5 | 202.5 | 0.1868 | 0.0293 |
| 0.5 | 217.5 | 0.1672 | 0.0322 |
| 0.5 | 232.5 | 0.23 | 0.1011 |
| 0.5 | 247.5 | 0.2538 | 0.063 |
| 0.5 | 262.5 | 0.0921 | 0.0274 |
| 0.5 | 277.5 | 0.2957 | 0.0596 |
| 0.5 | 292.5 | 0.1915 | 0.0399 |
| 0.5 | 307.5 | 0.1448 | 0.0276 |
| 0.5 | 322.5 | 0.0576 | 0.0149 |
| 0.7 | 22.5 | 0.2006 | 0.0426 |
| 0.7 | 37.5 | 0.1552 | 0.0178 |
| 0.7 | 52.5 | 0.2094 | 0.0216 |
| 0.7 | 67.5 | 0.2783 | 0.0342 |
| 0.7 | 82.5 | 0.3737 | 0.0509 |
| 0.7 | 97.5 | 0.4163 | 0.0583 |
| 0.7 | 112.5 | 0.5524 | 0.0785 |
| 0.7 | 127.5 | 0.3355 | 0.0584 |
| 0.7 | 142.5 | 0.5437 | 0.0913 |
| 0.7 | 157.5 | 0.4803 | 0.139 |
| 0.7 | 172.5 | 0.8575 | 0.2341 |
| 0.7 | 187.5 | 0.4501 | 0.1319 |
| 0.7 | 202.5 | 0.4823 | 0.1395 |
| 0.7 | 217.5 | 0.4185 | 0.07 |
| 0.7 | 232.5 | 0.4733 | 0.0755 |
| 0.7 | 247.5 | 0.344 | 0.0625 |
| 0.7 | 262.5 | 0.3266 | 0.0584 |
| 0.7 | 277.5 | 0.2877 | 0.0562 |
| 0.7 | 292.5 | 0.2886 | 0.0457 |
| 0.7 | 307.5 | 0.1304 | 0.0195 |
| 0.7 | 322.5 | 0.0924 | 0.0157 |
| 0.7 | 337.5 | 0.0658 | 0.0245 |
| 0.9 | 7.5 | 0.3503 | 0.0256 |
| 0.9 | 22.5 | 0.295 | 0.0236 |
| 0.9 | 37.5 | 0.3249 | 0.0276 |
| 0.9 | 52.5 | 0.3327 | 0.0295 |
| 0.9 | 67.5 | 0.4164 | 0.0353 |
| 0.9 | 82.5 | 0.5301 | 0.0482 |
| 0.9 | 97.5 | 0.492 | 0.0464 |
| 0.9 | 112.5 | 0.4349 | 0.0364 |
| 0.9 | 127.5 | 0.3155 | 0.0258 |
| 0.9 | 142.5 | 0.3881 | 0.0314 |
| 0.9 | 157.5 | 0.3811 | 0.03 |
| 0.9 | 172.5 | 0.3608 | 0.0293 |
| 0.9 | 187.5 | 0.3393 | 0.0277 |
| 0.9 | 202.5 | 0.3516 | 0.0292 |
| 0.9 | 217.5 | 0.3338 | 0.0278 |
| 0.9 | 232.5 | 0.3541 | 0.029 |
| 0.9 | 247.5 | 0.3001 | 0.0257 |
| 0.9 | 277.5 | 0.3515 | 0.0594 |
| 0.9 | 307.5 | 0.3523 | 0.0316 |
| 0.9 | 322.5 | 0.2742 | 0.0247 |
| 0.9 | 337.5 | 0.3402 | 0.027 |
| 0.9 | 352.5 | 0.3706 | 0.0267 |
Experiment comment: