Measurement E141M158
| 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: | 1.89 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| 0.525 | 56.25 | 0.1022 | 0.0485 |
| 0.525 | 228.75 | 0.1046 | 0.0448 |
| 0.575 | 71.25 | 0.106 | 0.0538 |
| 0.575 | 78.75 | 0.1003 | 0.0546 |
| 0.575 | 116.25 | 0.1181 | 0.0629 |
| 0.575 | 176.25 | 0.1 | 0.0401 |
| 0.575 | 228.75 | 0.1403 | 0.0717 |
| 0.575 | 288.75 | 0.1254 | 0.0698 |
| 0.625 | 71.25 | 0.1053 | 0.0495 |
| 0.625 | 116.25 | 0.1147 | 0.0551 |
| 0.625 | 191.25 | 0.1095 | 0.0519 |
| 0.625 | 228.75 | 0.1297 | 0.0627 |
| 0.625 | 288.75 | 0.137 | 0.0723 |
| 0.675 | 56.25 | 0.1356 | 0.0693 |
| 0.675 | 71.25 | 0.1013 | 0.0531 |
| 0.675 | 78.75 | 0.1346 | 0.0707 |
| 0.675 | 101.25 | 0.1379 | 0.071 |
| 0.675 | 123.75 | 0.1069 | 0.0427 |
| 0.675 | 131.25 | 0.1112 | 0.0433 |
| 0.675 | 191.25 | 0.1552 | 0.0781 |
| 0.675 | 228.75 | 0.1587 | 0.0811 |
| 0.675 | 236.25 | 0.1265 | 0.0606 |
| 0.725 | 63.75 | 0.1113 | 0.0566 |
| 0.725 | 71.25 | 0.1054 | 0.0481 |
| 0.725 | 78.75 | 0.1549 | 0.0819 |
| 0.725 | 86.25 | 0.1263 | 0.0683 |
| 0.725 | 93.75 | 0.1561 | 0.0872 |
| 0.725 | 101.25 | 0.1569 | 0.0641 |
| 0.725 | 176.25 | 0.1064 | 0.0452 |
| 0.725 | 191.25 | 0.1043 | 0.0471 |
| 0.725 | 198.75 | 0.1294 | 0.061 |
| 0.725 | 206.25 | 0.1318 | 0.0517 |
| 0.725 | 236.25 | 0.132 | 0.0697 |
| 0.775 | 71.25 | 0.1228 | 0.0593 |
| 0.775 | 78.75 | 0.1356 | 0.0597 |
| 0.775 | 86.25 | 0.1353 | 0.0784 |
| 0.775 | 93.75 | 0.1606 | 0.0734 |
| 0.775 | 101.25 | 0.1791 | 0.096 |
| 0.775 | 108.75 | 0.1327 | 0.0557 |
| 0.775 | 123.75 | 0.1271 | 0.0621 |
| 0.775 | 131.25 | 0.1263 | 0.0528 |
| 0.775 | 138.75 | 0.1421 | 0.0806 |
| 0.775 | 161.25 | 0.1299 | 0.0477 |
| 0.775 | 176.25 | 0.1243 | 0.0633 |
| 0.775 | 183.75 | 0.1165 | 0.0516 |
| 0.775 | 191.25 | 0.1154 | 0.0445 |
| 0.775 | 198.75 | 0.1318 | 0.0487 |
| 0.775 | 206.25 | 0.1447 | 0.0708 |
| 0.775 | 213.75 | 0.1214 | 0.0613 |
| 0.775 | 228.75 | 0.1573 | 0.0831 |
| 0.775 | 251.25 | 0.1025 | 0.0561 |
| 0.775 | 266.25 | 0.1179 | 0.067 |
| 0.775 | 281.25 | 0.1286 | 0.0723 |
| 0.775 | 288.75 | 0.158 | 0.083 |
| 0.775 | 296.25 | 0.1575 | 0.0834 |
| 0.825 | 11.25 | 0.25 | 0.1168 |
| 0.825 | 63.75 | 0.1443 | 0.0747 |
| 0.825 | 78.75 | 0.1628 | 0.0665 |
| 0.825 | 86.25 | 0.1732 | 0.0816 |
| 0.825 | 93.75 | 0.1967 | 0.0945 |
| 0.825 | 101.25 | 0.1869 | 0.1026 |
| 0.825 | 108.75 | 0.1649 | 0.0724 |
| 0.825 | 131.25 | 0.1584 | 0.0815 |
| 0.825 | 146.25 | 0.1717 | 0.076 |
| 0.825 | 161.25 | 0.1377 | 0.0704 |
| 0.825 | 183.75 | 0.1286 | 0.0519 |
| 0.825 | 191.25 | 0.1352 | 0.0493 |
| 0.825 | 198.75 | 0.1557 | 0.0605 |
| 0.825 | 206.25 | 0.1575 | 0.0742 |
| 0.825 | 228.75 | 0.1186 | 0.0617 |
| 0.825 | 258.75 | 0.1471 | 0.0652 |
| 0.825 | 266.25 | 0.1458 | 0.0794 |
| 0.825 | 273.75 | 0.1434 | 0.0707 |
| 0.825 | 281.25 | 0.1806 | 0.0909 |
| 0.825 | 296.25 | 0.1502 | 0.0689 |
| 0.875 | 3.75 | 0.1966 | 0.0944 |
| 0.875 | 11.25 | 0.205 | 0.085 |
| 0.875 | 48.75 | 0.1404 | 0.0531 |
| 0.875 | 56.25 | 0.1555 | 0.0746 |
| 0.875 | 63.75 | 0.1644 | 0.0857 |
| 0.875 | 71.25 | 0.1327 | 0.0763 |
| 0.875 | 78.75 | 0.194 | 0.0902 |
| 0.875 | 86.25 | 0.1876 | 0.0874 |
| 0.875 | 93.75 | 0.1627 | 0.0702 |
| 0.875 | 101.25 | 0.1576 | 0.053 |
| 0.875 | 108.75 | 0.144 | 0.0724 |
| 0.875 | 116.25 | 0.1053 | 0.0448 |
| 0.875 | 131.25 | 0.1603 | 0.0828 |
| 0.875 | 138.75 | 0.2378 | 0.1059 |
| 0.875 | 146.25 | 0.2432 | 0.1211 |
| 0.875 | 161.25 | 0.1223 | 0.0567 |
| 0.875 | 168.75 | 0.1762 | 0.0677 |
| 0.875 | 183.75 | 0.1167 | 0.0487 |
| 0.875 | 191.25 | 0.1291 | 0.0585 |
| 0.875 | 198.75 | 0.1453 | 0.0575 |
| 0.875 | 206.25 | 0.1328 | 0.0526 |
| 0.875 | 228.75 | 0.2 | 0.0993 |
| 0.875 | 236.25 | 0.1759 | 0.0674 |
| 0.875 | 251.25 | 0.1371 | 0.0712 |
| 0.875 | 258.75 | 0.1857 | 0.0814 |
| 0.875 | 266.25 | 0.185 | 0.0689 |
| 0.875 | 273.75 | 0.1358 | 0.0563 |
| 0.875 | 281.25 | 0.1296 | 0.0587 |
| 0.875 | 288.75 | 0.1793 | 0.0946 |
| 0.875 | 296.25 | 0.1798 | 0.0958 |
| 0.875 | 341.25 | 0.1166 | 0.0595 |
| 0.875 | 356.25 | 0.2344 | 0.1027 |
| 0.925 | 3.75 | 0.1138 | 0.0546 |
| 0.925 | 11.25 | 0.1857 | 0.0979 |
| 0.925 | 18.75 | 0.1474 | 0.0882 |
| 0.925 | 26.25 | 0.2268 | 0.1474 |
| 0.925 | 71.25 | 0.1128 | 0.0578 |
| 0.925 | 86.25 | 0.1061 | 0.0458 |
| 0.925 | 93.75 | 0.1362 | 0.0639 |
| 0.925 | 108.75 | 0.2161 | 0.1254 |
| 0.925 | 138.75 | 0.1462 | 0.0729 |
| 0.925 | 146.25 | 0.4377 | 0.2434 |
| 0.925 | 153.75 | 0.226 | 0.1174 |
| 0.925 | 168.75 | 0.1277 | 0.0555 |
| 0.925 | 176.25 | 0.113 | 0.0548 |
| 0.925 | 183.75 | 0.2095 | 0.1217 |
| 0.925 | 198.75 | 0.1959 | 0.1027 |
| 0.925 | 206.25 | 0.1775 | 0.094 |
| 0.925 | 221.25 | 0.1051 | 0.058 |
| 0.925 | 228.75 | 0.1751 | 0.0804 |
| 0.925 | 236.25 | 0.2831 | 0.1809 |
| 0.925 | 243.75 | 0.3882 | 0.2182 |
| 0.925 | 258.75 | 0.2065 | 0.1202 |
| 0.925 | 318.75 | 0.1834 | 0.0893 |
| 0.925 | 326.25 | 0.1371 | 0.0645 |
| 0.925 | 348.75 | 0.1497 | 0.0702 |
| 0.975 | 3.75 | 0.1084 | 0.0386 |
| 0.975 | 11.25 | 0.332 | 0.1274 |
| 0.975 | 56.25 | 0.1358 | 0.0583 |
| 0.975 | 71.25 | 0.2248 | 0.0888 |
| 0.975 | 86.25 | 0.1301 | 0.0541 |
| 0.975 | 93.75 | 0.1424 | 0.0587 |
| 0.975 | 108.75 | 0.2402 | 0.0981 |
| 0.975 | 116.25 | 0.1287 | 0.0554 |
| 0.975 | 123.75 | 0.1658 | 0.0763 |
| 0.975 | 138.75 | 0.2042 | 0.0938 |
| 0.975 | 146.25 | 0.4988 | 0.3111 |
| 0.975 | 153.75 | 0.1617 | 0.075 |
| 0.975 | 161.25 | 0.114 | 0.0486 |
| 0.975 | 168.75 | 0.1552 | 0.0604 |
| 0.975 | 176.25 | 0.1463 | 0.0558 |
| 0.975 | 183.75 | 0.1694 | 0.0805 |
| 0.975 | 198.75 | 0.1375 | 0.0649 |
| 0.975 | 206.25 | 0.1539 | 0.0655 |
| 0.975 | 213.75 | 0.11 | 0.0491 |
| 0.975 | 228.75 | 0.1257 | 0.047 |
| 0.975 | 236.25 | 0.2826 | 0.1332 |
| 0.975 | 243.75 | 0.2205 | 0.1147 |
| 0.975 | 251.25 | 0.2366 | 0.0964 |
| 0.975 | 258.75 | 0.135 | 0.0579 |
| 0.975 | 266.25 | 0.1256 | 0.0433 |
| 0.975 | 273.75 | 0.1394 | 0.0499 |
| 0.975 | 281.25 | 0.1834 | 0.0765 |
| 0.975 | 296.25 | 0.1974 | 0.0899 |
| 0.975 | 303.75 | 0.1544 | 0.0568 |
| 0.975 | 318.75 | 0.1422 | 0.0546 |
| 0.975 | 326.25 | 0.1397 | 0.0616 |
| 0.975 | 341.25 | 0.1864 | 0.07 |
| 0.975 | 348.75 | 0.1123 | 0.0411 |
| 0.975 | 356.25 | 0.2982 | 0.1317 |
Experiment comment: