Measurement E141M43
| 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: | 1.83 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| -0.9 | 7.5 | 0.0671 | 0.0133 |
| -0.9 | 22.5 | 0.0697 | 0.0183 |
| -0.9 | 37.5 | 0.073 | 0.0172 |
| -0.9 | 52.5 | 0.1245 | 0.0247 |
| -0.9 | 67.5 | 0.1206 | 0.0257 |
| -0.9 | 82.5 | 0.1123 | 0.0314 |
| -0.9 | 97.5 | 0.0822 | 0.0245 |
| -0.9 | 112.5 | 0.0493 | 0.0136 |
| -0.9 | 127.5 | 0.063 | 0.0158 |
| -0.9 | 142.5 | 0.098 | 0.0294 |
| -0.9 | 157.5 | 0.0511 | 0.0213 |
| -0.9 | 172.5 | 0.0685 | 0.0186 |
| -0.9 | 187.5 | 0.088 | 0.024 |
| -0.9 | 202.5 | 0.0681 | 0.0227 |
| -0.9 | 217.5 | 0.0828 | 0.0246 |
| -0.9 | 232.5 | 0.0672 | 0.0174 |
| -0.9 | 247.5 | 0.0621 | 0.0167 |
| -0.9 | 262.5 | 0.0571 | 0.0171 |
| -0.9 | 277.5 | 0.1066 | 0.0283 |
| -0.9 | 292.5 | 0.083 | 0.0185 |
| -0.9 | 307.5 | 0.0937 | 0.0187 |
| -0.9 | 322.5 | 0.0453 | 0.0126 |
| -0.9 | 337.5 | 0.0857 | 0.0198 |
| -0.9 | 352.5 | 0.0365 | 0.0124 |
| -0.7 | 7.5 | 0.0865 | 0.016 |
| -0.7 | 22.5 | 0.0936 | 0.0196 |
| -0.7 | 37.5 | 0.1051 | 0.0213 |
| -0.7 | 52.5 | 0.1255 | 0.0196 |
| -0.7 | 67.5 | 0.1201 | 0.022 |
| -0.7 | 82.5 | 0.1419 | 0.0239 |
| -0.7 | 97.5 | 0.1031 | 0.0242 |
| -0.7 | 112.5 | 0.0797 | 0.0136 |
| -0.7 | 127.5 | 0.0678 | 0.0118 |
| -0.7 | 142.5 | 0.0374 | 0.0093 |
| -0.7 | 157.5 | 0.0471 | 0.0109 |
| -0.7 | 172.5 | 0.0541 | 0.0099 |
| -0.7 | 187.5 | 0.0596 | 0.0119 |
| -0.7 | 202.5 | 0.0449 | 0.0095 |
| -0.7 | 217.5 | 0.0523 | 0.0111 |
| -0.7 | 232.5 | 0.062 | 0.0108 |
| -0.7 | 247.5 | 0.0754 | 0.0126 |
| -0.7 | 262.5 | 0.1129 | 0.0185 |
| -0.7 | 277.5 | 0.0999 | 0.0194 |
| -0.7 | 292.5 | 0.1053 | 0.0205 |
| -0.7 | 307.5 | 0.1125 | 0.0224 |
| -0.7 | 322.5 | 0.1096 | 0.0194 |
| -0.7 | 337.5 | 0.0711 | 0.0166 |
| -0.7 | 352.5 | 0.0823 | 0.0163 |
| -0.5 | 7.5 | 0.0754 | 0.0184 |
| -0.5 | 22.5 | 0.1353 | 0.0311 |
| -0.5 | 37.5 | 0.0849 | 0.015 |
| -0.5 | 52.5 | 0.1054 | 0.0187 |
| -0.5 | 67.5 | 0.153 | 0.0277 |
| -0.5 | 82.5 | 0.1639 | 0.026 |
| -0.5 | 97.5 | 0.0823 | 0.013 |
| -0.5 | 112.5 | 0.0737 | 0.0104 |
| -0.5 | 127.5 | 0.0574 | 0.0092 |
| -0.5 | 142.5 | 0.0735 | 0.0127 |
| -0.5 | 157.5 | 0.0543 | 0.0088 |
| -0.5 | 172.5 | 0.0416 | 0.0073 |
| -0.5 | 187.5 | 0.0553 | 0.0081 |
| -0.5 | 202.5 | 0.0324 | 0.0068 |
| -0.5 | 217.5 | 0.0619 | 0.0106 |
| -0.5 | 232.5 | 0.0823 | 0.0123 |
| -0.5 | 247.5 | 0.0636 | 0.0099 |
| -0.5 | 262.5 | 0.1176 | 0.0147 |
| -0.5 | 277.5 | 0.1099 | 0.0192 |
| -0.5 | 292.5 | 0.1317 | 0.0218 |
| -0.5 | 307.5 | 0.0933 | 0.0167 |
| -0.5 | 322.5 | 0.0649 | 0.0145 |
| -0.5 | 337.5 | 0.1203 | 0.0353 |
| -0.5 | 352.5 | 0.0901 | 0.0158 |
| -0.3 | 7.5 | 0.0491 | 0.0173 |
| -0.3 | 22.5 | 0.0887 | 0.0251 |
| -0.3 | 37.5 | 0.1234 | 0.0277 |
| -0.3 | 52.5 | 0.1026 | 0.0228 |
| -0.3 | 67.5 | 0.1797 | 0.0347 |
| -0.3 | 82.5 | 0.1706 | 0.0209 |
| -0.3 | 97.5 | 0.164 | 0.0197 |
| -0.3 | 112.5 | 0.1272 | 0.0166 |
| -0.3 | 127.5 | 0.1289 | 0.0163 |
| -0.3 | 142.5 | 0.0913 | 0.0137 |
| -0.3 | 157.5 | 0.0732 | 0.0104 |
| -0.3 | 172.5 | 0.0457 | 0.0068 |
| -0.3 | 187.5 | 0.0763 | 0.009 |
| -0.3 | 202.5 | 0.0676 | 0.0095 |
| -0.3 | 217.5 | 0.0937 | 0.0131 |
| -0.3 | 232.5 | 0.0872 | 0.0132 |
| -0.3 | 247.5 | 0.1047 | 0.0133 |
| -0.3 | 262.5 | 0.1046 | 0.0134 |
| -0.3 | 277.5 | 0.1322 | 0.0189 |
| -0.3 | 292.5 | 0.1417 | 0.0278 |
| -0.3 | 307.5 | 0.1383 | 0.0396 |
| -0.1 | 22.5 | 0.1319 | 0.0277 |
| -0.1 | 37.5 | 0.0291 | 0.0124 |
| -0.1 | 52.5 | 0.1848 | 0.04 |
| -0.1 | 67.5 | 0.2496 | 0.0447 |
| -0.1 | 82.5 | 0.2041 | 0.0249 |
| -0.1 | 97.5 | 0.2012 | 0.0156 |
| -0.1 | 112.5 | 0.2138 | 0.0235 |
| -0.1 | 127.5 | 0.1578 | 0.0238 |
| -0.1 | 142.5 | 0.0964 | 0.0148 |
| -0.1 | 157.5 | 0.1046 | 0.013 |
| -0.1 | 172.5 | 0.1233 | 0.0116 |
| -0.1 | 187.5 | 0.1058 | 0.0105 |
| -0.1 | 202.5 | 0.1249 | 0.015 |
| -0.1 | 217.5 | 0.1093 | 0.017 |
| -0.1 | 232.5 | 0.1622 | 0.0211 |
| -0.1 | 247.5 | 0.1578 | 0.0172 |
| -0.1 | 262.5 | 0.1661 | 0.0184 |
| -0.1 | 277.5 | 0.2682 | 0.0338 |
| -0.1 | 292.5 | 0.163 | 0.0518 |
| 0.1 | 22.5 | 0.08 | 0.031 |
| 0.1 | 52.5 | 0.2234 | 0.0507 |
| 0.1 | 67.5 | 0.3022 | 0.0578 |
| 0.1 | 82.5 | 0.3091 | 0.0725 |
| 0.1 | 97.5 | 0.1984 | 0.0321 |
| 0.1 | 112.5 | 0.1585 | 0.0283 |
| 0.1 | 127.5 | 0.1721 | 0.0281 |
| 0.1 | 142.5 | 0.1216 | 0.0198 |
| 0.1 | 157.5 | 0.1143 | 0.0164 |
| 0.1 | 172.5 | 0.0512 | 0.0083 |
| 0.1 | 187.5 | 0.0935 | 0.0122 |
| 0.1 | 202.5 | 0.1275 | 0.0181 |
| 0.1 | 217.5 | 0.1152 | 0.0198 |
| 0.1 | 232.5 | 0.1074 | 0.0213 |
| 0.1 | 247.5 | 0.0955 | 0.0219 |
| 0.1 | 262.5 | 0.1218 | 0.0288 |
| 0.1 | 277.5 | 0.2979 | 0.0864 |
| 0.1 | 292.5 | 0.3509 | 0.0978 |
| 0.1 | 307.5 | 0.1864 | 0.0741 |
| 0.3 | 22.5 | 0.0609 | 0.0215 |
| 0.3 | 37.5 | 0.0855 | 0.024 |
| 0.3 | 52.5 | 0.165 | 0.0305 |
| 0.3 | 67.5 | 0.2021 | 0.0338 |
| 0.3 | 82.5 | 0.258 | 0.0406 |
| 0.3 | 97.5 | 0.2595 | 0.0465 |
| 0.3 | 112.5 | 0.2397 | 0.0426 |
| 0.3 | 127.5 | 0.1043 | 0.022 |
| 0.3 | 142.5 | 0.1252 | 0.0188 |
| 0.3 | 157.5 | 0.1042 | 0.0132 |
| 0.3 | 172.5 | 0.1333 | 0.0129 |
| 0.3 | 187.5 | 0.1299 | 0.012 |
| 0.3 | 202.5 | 0.1255 | 0.0151 |
| 0.3 | 217.5 | 0.1099 | 0.0171 |
| 0.3 | 232.5 | 0.1373 | 0.0281 |
| 0.3 | 247.5 | 0.1787 | 0.0413 |
| 0.3 | 262.5 | 0.2261 | 0.059 |
| 0.3 | 277.5 | 0.257 | 0.065 |
| 0.3 | 292.5 | 0.2038 | 0.0471 |
| 0.3 | 307.5 | 0.2537 | 0.0565 |
| 0.3 | 322.5 | 0.0666 | 0.0295 |
| 0.5 | 22.5 | 0.0981 | 0.0191 |
| 0.5 | 37.5 | 0.2056 | 0.0292 |
| 0.5 | 52.5 | 0.3299 | 0.0527 |
| 0.5 | 67.5 | 0.2285 | 0.0342 |
| 0.5 | 82.5 | 0.3035 | 0.0455 |
| 0.5 | 97.5 | 0.4768 | 0.0746 |
| 0.5 | 112.5 | 0.6024 | 0.1071 |
| 0.5 | 127.5 | 0.4912 | 0.0808 |
| 0.5 | 142.5 | 0.2116 | 0.0341 |
| 0.5 | 157.5 | 0.2376 | 0.0321 |
| 0.5 | 172.5 | 0.1276 | 0.0167 |
| 0.5 | 187.5 | 0.1626 | 0.0186 |
| 0.5 | 202.5 | 0.2583 | 0.0333 |
| 0.5 | 217.5 | 0.275 | 0.0409 |
| 0.5 | 232.5 | 0.4488 | 0.0856 |
| 0.5 | 247.5 | 0.3716 | 0.0897 |
| 0.5 | 262.5 | 0.6113 | 0.0737 |
| 0.5 | 277.5 | 0.3723 | 0.0873 |
| 0.5 | 292.5 | 0.3427 | 0.0877 |
| 0.5 | 307.5 | 0.2682 | 0.0521 |
| 0.5 | 322.5 | 0.1773 | 0.0374 |
| 0.5 | 337.5 | 0.0818 | 0.0274 |
| 0.7 | 7.5 | 0.1069 | 0.0206 |
| 0.7 | 22.5 | 0.1133 | 0.0248 |
| 0.7 | 37.5 | 0.1496 | 0.0232 |
| 0.7 | 52.5 | 0.3266 | 0.0502 |
| 0.7 | 67.5 | 0.3587 | 0.0544 |
| 0.7 | 82.5 | 0.5734 | 0.0737 |
| 0.7 | 97.5 | 0.6921 | 0.0995 |
| 0.7 | 112.5 | 0.9115 | 0.112 |
| 0.7 | 127.5 | 0.629 | 0.0726 |
| 0.7 | 142.5 | 1.1876 | 0.194 |
| 0.7 | 157.5 | 1.0457 | 0.1527 |
| 0.7 | 172.5 | 1.0526 | 0.1492 |
| 0.7 | 187.5 | 1.4289 | 0.2139 |
| 0.7 | 202.5 | 1.1901 | 0.1728 |
| 0.7 | 217.5 | 1.048 | 0.1697 |
| 0.7 | 232.5 | 0.7944 | 0.1308 |
| 0.7 | 247.5 | 0.6404 | 0.117 |
| 0.7 | 262.5 | 0.7217 | 0.1209 |
| 0.7 | 277.5 | 0.4865 | 0.0838 |
| 0.7 | 292.5 | 0.3441 | 0.0661 |
| 0.7 | 307.5 | 0.2524 | 0.0579 |
| 0.7 | 322.5 | 0.1004 | 0.0235 |
| 0.7 | 337.5 | 0.0543 | 0.0165 |
| 0.7 | 352.5 | 0.144 | 0.0239 |
| 0.9 | 7.5 | 0.4215 | 0.0335 |
| 0.9 | 22.5 | 0.3269 | 0.0307 |
| 0.9 | 37.5 | 0.3799 | 0.0369 |
| 0.9 | 52.5 | 0.3925 | 0.0409 |
| 0.9 | 67.5 | 0.4676 | 0.0459 |
| 0.9 | 82.5 | 0.4879 | 0.0455 |
| 0.9 | 97.5 | 0.5149 | 0.0473 |
| 0.9 | 112.5 | 0.3471 | 0.0327 |
| 0.9 | 127.5 | 0.2911 | 0.028 |
| 0.9 | 142.5 | 0.334 | 0.0299 |
| 0.9 | 157.5 | 0.3865 | 0.0334 |
| 0.9 | 172.5 | 0.3116 | 0.0271 |
| 0.9 | 187.5 | 0.3327 | 0.0298 |
| 0.9 | 202.5 | 0.3911 | 0.0345 |
| 0.9 | 217.5 | 0.3218 | 0.0299 |
| 0.9 | 232.5 | 0.3564 | 0.0317 |
| 0.9 | 247.5 | 0.3422 | 0.0319 |
| 0.9 | 262.5 | 0.4542 | 0.0442 |
| 0.9 | 277.5 | 0.4571 | 0.0446 |
| 0.9 | 292.5 | 0.4224 | 0.0467 |
| 0.9 | 307.5 | 0.4293 | 0.0434 |
| 0.9 | 322.5 | 0.3024 | 0.0299 |
| 0.9 | 337.5 | 0.3662 | 0.0326 |
| 0.9 | 352.5 | 0.401 | 0.0325 |
Experiment comment: