Measurement E141M159
| 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: | 4.0 GeV2 | |
| W: | 1.95 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| 0.525 | 86.25 | 0.1021 | 0.0544 |
| 0.575 | 176.25 | 0.1068 | 0.0489 |
| 0.625 | 108.75 | 0.132 | 0.0689 |
| 0.625 | 206.25 | 0.107 | 0.0504 |
| 0.675 | 101.25 | 0.1076 | 0.0577 |
| 0.675 | 183.75 | 0.1187 | 0.0542 |
| 0.675 | 191.25 | 0.1018 | 0.0406 |
| 0.675 | 198.75 | 0.1287 | 0.0586 |
| 0.725 | 131.25 | 0.1089 | 0.0522 |
| 0.725 | 168.75 | 0.1127 | 0.0424 |
| 0.725 | 191.25 | 0.0999 | 0.0453 |
| 0.725 | 206.25 | 0.1181 | 0.0568 |
| 0.725 | 221.25 | 0.1043 | 0.0441 |
| 0.775 | 93.75 | 0.1056 | 0.0518 |
| 0.775 | 101.25 | 0.1272 | 0.0616 |
| 0.775 | 153.75 | 0.1504 | 0.0778 |
| 0.775 | 161.25 | 0.1279 | 0.0653 |
| 0.775 | 168.75 | 0.1394 | 0.0716 |
| 0.775 | 176.25 | 0.1292 | 0.055 |
| 0.775 | 183.75 | 0.12 | 0.051 |
| 0.775 | 191.25 | 0.1126 | 0.0396 |
| 0.775 | 206.25 | 0.1214 | 0.0549 |
| 0.775 | 213.75 | 0.1026 | 0.046 |
| 0.775 | 221.25 | 0.1111 | 0.0587 |
| 0.775 | 243.75 | 0.1007 | 0.054 |
| 0.825 | 18.75 | 0.113 | 0.0664 |
| 0.825 | 26.25 | 0.1058 | 0.0616 |
| 0.825 | 78.75 | 0.1153 | 0.0556 |
| 0.825 | 86.25 | 0.1046 | 0.0606 |
| 0.825 | 93.75 | 0.142 | 0.0759 |
| 0.825 | 101.25 | 0.143 | 0.068 |
| 0.825 | 116.25 | 0.2009 | 0.0952 |
| 0.825 | 131.25 | 0.1148 | 0.057 |
| 0.825 | 138.75 | 0.1005 | 0.0349 |
| 0.825 | 153.75 | 0.1315 | 0.0655 |
| 0.825 | 161.25 | 0.1562 | 0.0763 |
| 0.825 | 168.75 | 0.1594 | 0.0787 |
| 0.825 | 191.25 | 0.1622 | 0.0789 |
| 0.825 | 198.75 | 0.1862 | 0.092 |
| 0.825 | 206.25 | 0.1648 | 0.0835 |
| 0.825 | 236.25 | 0.1297 | 0.0701 |
| 0.825 | 243.75 | 0.1118 | 0.0527 |
| 0.875 | 3.75 | 0.2833 | 0.1546 |
| 0.875 | 18.75 | 0.1173 | 0.0615 |
| 0.875 | 41.25 | 0.1696 | 0.0732 |
| 0.875 | 48.75 | 0.1454 | 0.0643 |
| 0.875 | 56.25 | 0.1392 | 0.0804 |
| 0.875 | 78.75 | 0.1614 | 0.0821 |
| 0.875 | 86.25 | 0.1296 | 0.064 |
| 0.875 | 93.75 | 0.1699 | 0.0876 |
| 0.875 | 101.25 | 0.1765 | 0.0804 |
| 0.875 | 108.75 | 0.1886 | 0.0871 |
| 0.875 | 116.25 | 0.1932 | 0.099 |
| 0.875 | 123.75 | 0.1515 | 0.0695 |
| 0.875 | 131.25 | 0.153 | 0.0581 |
| 0.875 | 153.75 | 0.2088 | 0.1075 |
| 0.875 | 161.25 | 0.199 | 0.0964 |
| 0.875 | 168.75 | 0.1486 | 0.0721 |
| 0.875 | 176.25 | 0.1531 | 0.0652 |
| 0.875 | 183.75 | 0.1434 | 0.0531 |
| 0.875 | 191.25 | 0.1376 | 0.0452 |
| 0.875 | 198.75 | 0.1439 | 0.0593 |
| 0.875 | 206.25 | 0.1647 | 0.0685 |
| 0.875 | 213.75 | 0.1303 | 0.0702 |
| 0.875 | 221.25 | 0.1566 | 0.079 |
| 0.875 | 236.25 | 0.1918 | 0.0725 |
| 0.875 | 243.75 | 0.112 | 0.0387 |
| 0.875 | 251.25 | 0.1269 | 0.0464 |
| 0.875 | 273.75 | 0.1324 | 0.0442 |
| 0.875 | 281.25 | 0.1461 | 0.0723 |
| 0.875 | 296.25 | 0.146 | 0.0725 |
| 0.875 | 333.75 | 0.2012 | 0.1052 |
| 0.925 | 3.75 | 0.2137 | 0.1256 |
| 0.925 | 18.75 | 0.3195 | 0.2021 |
| 0.925 | 41.25 | 0.1093 | 0.0596 |
| 0.925 | 63.75 | 0.1722 | 0.1007 |
| 0.925 | 108.75 | 0.1083 | 0.0489 |
| 0.925 | 116.25 | 0.1336 | 0.066 |
| 0.925 | 123.75 | 0.2307 | 0.109 |
| 0.925 | 131.25 | 0.1638 | 0.0863 |
| 0.925 | 146.25 | 0.1509 | 0.0803 |
| 0.925 | 153.75 | 0.1315 | 0.0617 |
| 0.925 | 176.25 | 0.1124 | 0.0626 |
| 0.925 | 206.25 | 0.1104 | 0.0497 |
| 0.925 | 236.25 | 0.3114 | 0.1753 |
| 0.925 | 243.75 | 0.1805 | 0.0943 |
| 0.925 | 266.25 | 0.1012 | 0.0484 |
| 0.925 | 273.75 | 0.1006 | 0.0512 |
| 0.925 | 281.25 | 0.1069 | 0.0586 |
| 0.925 | 296.25 | 0.1363 | 0.0906 |
| 0.925 | 303.75 | 0.1748 | 0.1023 |
| 0.925 | 311.25 | 0.2425 | 0.1554 |
| 0.925 | 326.25 | 0.1714 | 0.0784 |
| 0.975 | 3.75 | 0.1483 | 0.0541 |
| 0.975 | 18.75 | 0.3209 | 0.139 |
| 0.975 | 33.75 | 0.2468 | 0.1163 |
| 0.975 | 48.75 | 0.1689 | 0.0818 |
| 0.975 | 56.25 | 0.1361 | 0.06 |
| 0.975 | 71.25 | 0.2365 | 0.1216 |
| 0.975 | 78.75 | 0.104 | 0.0451 |
| 0.975 | 93.75 | 0.2805 | 0.1593 |
| 0.975 | 101.25 | 0.1949 | 0.0876 |
| 0.975 | 108.75 | 0.1405 | 0.0622 |
| 0.975 | 116.25 | 0.3381 | 0.1558 |
| 0.975 | 123.75 | 0.1056 | 0.0376 |
| 0.975 | 131.25 | 0.1288 | 0.0401 |
| 0.975 | 146.25 | 0.1854 | 0.0896 |
| 0.975 | 153.75 | 0.1141 | 0.0452 |
| 0.975 | 168.75 | 0.1233 | 0.0629 |
| 0.975 | 176.25 | 0.2088 | 0.0938 |
| 0.975 | 191.25 | 0.1497 | 0.0578 |
| 0.975 | 198.75 | 0.1192 | 0.0543 |
| 0.975 | 206.25 | 0.1112 | 0.0432 |
| 0.975 | 213.75 | 0.1141 | 0.0493 |
| 0.975 | 228.75 | 0.1635 | 0.0625 |
| 0.975 | 236.25 | 0.1882 | 0.0772 |
| 0.975 | 243.75 | 0.2058 | 0.0748 |
| 0.975 | 251.25 | 0.1757 | 0.0624 |
| 0.975 | 266.25 | 0.1003 | 0.036 |
| 0.975 | 273.75 | 0.1484 | 0.0601 |
| 0.975 | 281.25 | 0.3126 | 0.1768 |
| 0.975 | 288.75 | 0.2269 | 0.0922 |
| 0.975 | 296.25 | 0.1159 | 0.0481 |
| 0.975 | 303.75 | 0.1901 | 0.0925 |
| 0.975 | 311.25 | 0.1274 | 0.0526 |
| 0.975 | 318.75 | 0.1197 | 0.0515 |
| 0.975 | 326.25 | 0.1298 | 0.0464 |
| 0.975 | 341.25 | 0.1283 | 0.047 |
| 0.975 | 348.75 | 0.1427 | 0.0627 |
| 0.975 | 356.25 | 0.2066 | 0.0888 |
Experiment comment: