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Measurement E141M1
| 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: | 1.605 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| -0.9 | 15.0 | 1.2896 | 0.2057 |
| -0.9 | 45.0 | 0.8999 | 0.1385 |
| -0.9 | 75.0 | 1.0294 | 0.1621 |
| -0.9 | 105.0 | 0.8437 | 0.1313 |
| -0.9 | 135.0 | 0.8086 | 0.1327 |
| -0.9 | 165.0 | 0.6296 | 0.1198 |
| -0.9 | 195.0 | 0.8334 | 0.2887 |
| -0.9 | 225.0 | 0.7673 | 0.1195 |
| -0.9 | 255.0 | 0.7446 | 0.1083 |
| -0.9 | 285.0 | 0.7608 | 0.12 |
| -0.9 | 315.0 | 1.0644 | 0.1533 |
| -0.9 | 345.0 | 1.3395 | 0.2242 |
| -0.7 | 45.0 | 0.952 | 0.1216 |
| -0.7 | 75.0 | 1.0415 | 0.1286 |
| -0.7 | 105.0 | 0.8043 | 0.0786 |
| -0.7 | 135.0 | 0.7661 | 0.1027 |
| -0.7 | 165.0 | 0.7278 | 0.0907 |
| -0.7 | 195.0 | 0.7017 | 0.0885 |
| -0.7 | 225.0 | 0.9681 | 0.1042 |
| -0.7 | 255.0 | 1.2461 | 0.1184 |
| -0.7 | 285.0 | 1.1016 | 0.1416 |
| -0.7 | 315.0 | 0.9727 | 0.1298 |
| -0.5 | 15.0 | 0.5857 | 0.114 |
| -0.5 | 45.0 | 1.2386 | 0.1616 |
| -0.5 | 75.0 | 1.7094 | 0.176 |
| -0.5 | 105.0 | 1.9266 | 0.155 |
| -0.5 | 135.0 | 1.2868 | 0.1278 |
| -0.5 | 165.0 | 0.8154 | 0.0938 |
| -0.5 | 195.0 | 0.9576 | 0.0991 |
| -0.5 | 225.0 | 1.1873 | 0.1154 |
| -0.5 | 255.0 | 1.4598 | 0.1143 |
| -0.5 | 285.0 | 1.5518 | 0.1613 |
| -0.5 | 315.0 | 1.3173 | 0.1736 |
| -0.5 | 345.0 | 0.7273 | 0.138 |
| -0.3 | 15.0 | 0.76 | 0.1271 |
| -0.3 | 45.0 | 1.1831 | 0.1743 |
| -0.3 | 75.0 | 1.349 | 0.1402 |
| -0.3 | 105.0 | 1.4377 | 0.1223 |
| -0.3 | 135.0 | 1.3391 | 0.1235 |
| -0.3 | 165.0 | 0.9385 | 0.0833 |
| -0.3 | 195.0 | 1.0745 | 0.0936 |
| -0.3 | 225.0 | 1.0282 | 0.1016 |
| -0.3 | 255.0 | 1.3028 | 0.1117 |
| -0.3 | 285.0 | 1.3367 | 0.1278 |
| -0.3 | 315.0 | 1.1541 | 0.1996 |
| -0.3 | 345.0 | 0.4358 | 0.0856 |
| -0.1 | 15.0 | 0.622 | 0.097 |
| -0.1 | 45.0 | 1.2473 | 0.1765 |
| -0.1 | 75.0 | 1.3264 | 0.1237 |
| -0.1 | 105.0 | 1.395 | 0.1347 |
| -0.1 | 135.0 | 1.2018 | 0.1105 |
| -0.1 | 165.0 | 1.1863 | 0.093 |
| -0.1 | 195.0 | 1.1722 | 0.0943 |
| -0.1 | 225.0 | 1.2144 | 0.111 |
| -0.1 | 255.0 | 1.1637 | 0.1139 |
| -0.1 | 285.0 | 1.1666 | 0.1229 |
| -0.1 | 345.0 | 0.6254 | 0.1363 |
| 0.1 | 15.0 | 0.6426 | 0.1793 |
| 0.1 | 45.0 | 1.0334 | 0.1242 |
| 0.1 | 75.0 | 1.3946 | 0.1284 |
| 0.1 | 105.0 | 1.4808 | 0.1407 |
| 0.1 | 165.0 | 0.958 | 0.0748 |
| 0.1 | 195.0 | 1.0494 | 0.0843 |
| 0.1 | 225.0 | 0.8894 | 0.0954 |
| 0.1 | 255.0 | 1.1053 | 0.1051 |
| 0.1 | 285.0 | 1.3269 | 0.1405 |
| 0.1 | 315.0 | 1.3255 | 0.208 |
| 0.1 | 345.0 | 0.6849 | 0.203 |
| 0.3 | 15.0 | 0.5175 | 0.0729 |
| 0.3 | 45.0 | 0.9875 | 0.0737 |
| 0.3 | 75.0 | 1.58 | 0.1291 |
| 0.3 | 105.0 | 1.3707 | 0.1093 |
| 0.3 | 135.0 | 1.3273 | 0.1197 |
| 0.3 | 165.0 | 0.992 | 0.0769 |
| 0.3 | 195.0 | 1.1694 | 0.0903 |
| 0.3 | 225.0 | 1.2452 | 0.1075 |
| 0.3 | 285.0 | 1.2201 | 0.1147 |
| 0.3 | 315.0 | 0.9908 | 0.0901 |
| 0.3 | 345.0 | 0.867 | 0.1257 |
| 0.5 | 15.0 | 0.7084 | 0.0974 |
| 0.5 | 45.0 | 0.9786 | 0.0814 |
| 0.5 | 75.0 | 2.0373 | 0.1751 |
| 0.5 | 105.0 | 1.981 | 0.182 |
| 0.5 | 165.0 | 0.9728 | 0.079 |
| 0.5 | 195.0 | 1.1766 | 0.0948 |
| 0.5 | 225.0 | 1.4091 | 0.1333 |
| 0.5 | 255.0 | 2.063 | 0.2017 |
| 0.5 | 285.0 | 1.8975 | 0.218 |
| 0.5 | 315.0 | 1.088 | 0.1073 |
| 0.5 | 345.0 | 0.7579 | 0.0999 |
| 0.7 | 15.0 | 0.7698 | 0.0646 |
| 0.7 | 45.0 | 1.6283 | 0.134 |
| 0.7 | 75.0 | 2.3971 | 0.2003 |
| 0.7 | 105.0 | 2.5352 | 0.2482 |
| 0.7 | 135.0 | 1.6825 | 0.14 |
| 0.7 | 165.0 | 1.1013 | 0.0894 |
| 0.7 | 195.0 | 1.162 | 0.0937 |
| 0.7 | 225.0 | 1.7412 | 0.1461 |
| 0.7 | 255.0 | 2.2369 | 0.2397 |
| 0.7 | 285.0 | 2.3417 | 0.2173 |
| 0.7 | 315.0 | 1.326 | 0.1295 |
| 0.7 | 345.0 | 0.7382 | 0.0595 |
| 0.9 | 15.0 | 1.4452 | 0.0943 |
| 0.9 | 45.0 | 1.4329 | 0.0977 |
| 0.9 | 75.0 | 1.6475 | 0.1253 |
| 0.9 | 105.0 | 1.8127 | 0.1496 |
| 0.9 | 135.0 | 1.9944 | 0.1662 |
| 0.9 | 165.0 | 1.4125 | 0.1224 |
| 0.9 | 195.0 | 1.5699 | 0.1333 |
| 0.9 | 225.0 | 1.8339 | 0.1543 |
| 0.9 | 255.0 | 1.8621 | 0.1529 |
| 0.9 | 285.0 | 1.5432 | 0.1126 |
| 0.9 | 315.0 | 1.6243 | 0.1122 |
| 0.9 | 345.0 | 1.2393 | 0.0821 |
Experiment comment: