Measurement E141M157
| 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: | 1.83 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| 0.525 | 48.75 | 0.1597 | 0.0717 |
| 0.525 | 56.25 | 0.1502 | 0.0672 |
| 0.525 | 71.25 | 0.1067 | 0.056 |
| 0.525 | 236.25 | 0.12 | 0.067 |
| 0.525 | 243.75 | 0.1241 | 0.0625 |
| 0.525 | 318.75 | 0.1 | 0.0486 |
| 0.575 | 48.75 | 0.1395 | 0.0738 |
| 0.575 | 56.25 | 0.1634 | 0.088 |
| 0.575 | 86.25 | 0.1287 | 0.0641 |
| 0.575 | 108.75 | 0.1645 | 0.0708 |
| 0.575 | 116.25 | 0.1284 | 0.0538 |
| 0.575 | 131.25 | 0.167 | 0.0882 |
| 0.575 | 213.75 | 0.1024 | 0.041 |
| 0.575 | 236.25 | 0.13 | 0.0686 |
| 0.575 | 251.25 | 0.1387 | 0.0674 |
| 0.575 | 288.75 | 0.0992 | 0.0552 |
| 0.575 | 311.25 | 0.1023 | 0.0577 |
| 0.625 | 41.25 | 0.1107 | 0.0622 |
| 0.625 | 56.25 | 0.1557 | 0.0784 |
| 0.625 | 63.75 | 0.1472 | 0.078 |
| 0.625 | 71.25 | 0.1251 | 0.0633 |
| 0.625 | 78.75 | 0.1263 | 0.0673 |
| 0.625 | 123.75 | 0.1892 | 0.1013 |
| 0.625 | 206.25 | 0.1006 | 0.0435 |
| 0.625 | 258.75 | 0.1206 | 0.0654 |
| 0.625 | 266.25 | 0.1334 | 0.0686 |
| 0.675 | 71.25 | 0.1363 | 0.0765 |
| 0.675 | 101.25 | 0.2471 | 0.1184 |
| 0.675 | 108.75 | 0.1384 | 0.0645 |
| 0.675 | 123.75 | 0.1845 | 0.091 |
| 0.675 | 131.25 | 0.1958 | 0.1068 |
| 0.675 | 138.75 | 0.1244 | 0.0745 |
| 0.675 | 146.25 | 0.1516 | 0.0788 |
| 0.675 | 153.75 | 0.1017 | 0.0553 |
| 0.675 | 168.75 | 0.1032 | 0.0462 |
| 0.675 | 213.75 | 0.1152 | 0.0561 |
| 0.675 | 221.25 | 0.1096 | 0.0519 |
| 0.675 | 251.25 | 0.1635 | 0.0995 |
| 0.675 | 258.75 | 0.1675 | 0.0962 |
| 0.675 | 266.25 | 0.1545 | 0.0845 |
| 0.725 | 71.25 | 0.146 | 0.0596 |
| 0.725 | 78.75 | 0.1913 | 0.0913 |
| 0.725 | 86.25 | 0.1663 | 0.0853 |
| 0.725 | 93.75 | 0.3085 | 0.1597 |
| 0.725 | 116.25 | 0.1818 | 0.0954 |
| 0.725 | 146.25 | 0.1475 | 0.0645 |
| 0.725 | 153.75 | 0.1124 | 0.056 |
| 0.725 | 198.75 | 0.1332 | 0.0564 |
| 0.725 | 206.25 | 0.1224 | 0.0595 |
| 0.725 | 228.75 | 0.1992 | 0.0847 |
| 0.725 | 236.25 | 0.1964 | 0.0848 |
| 0.725 | 258.75 | 0.1864 | 0.1064 |
| 0.725 | 266.25 | 0.2073 | 0.111 |
| 0.775 | 71.25 | 0.1867 | 0.1004 |
| 0.775 | 78.75 | 0.1738 | 0.095 |
| 0.775 | 123.75 | 0.1876 | 0.1099 |
| 0.775 | 138.75 | 0.1474 | 0.0788 |
| 0.775 | 146.25 | 0.1566 | 0.0815 |
| 0.775 | 153.75 | 0.1215 | 0.0468 |
| 0.775 | 206.25 | 0.1462 | 0.0784 |
| 0.775 | 213.75 | 0.16 | 0.0577 |
| 0.775 | 221.25 | 0.1602 | 0.0771 |
| 0.775 | 236.25 | 0.2566 | 0.136 |
| 0.775 | 243.75 | 0.1961 | 0.1076 |
| 0.775 | 281.25 | 0.1645 | 0.0671 |
| 0.775 | 303.75 | 0.1273 | 0.0647 |
| 0.825 | 3.75 | 0.1562 | 0.0699 |
| 0.825 | 18.75 | 0.1522 | 0.0603 |
| 0.825 | 63.75 | 0.1928 | 0.1022 |
| 0.825 | 71.25 | 0.1872 | 0.1027 |
| 0.825 | 78.75 | 0.1513 | 0.079 |
| 0.825 | 108.75 | 0.2094 | 0.0964 |
| 0.825 | 116.25 | 0.1747 | 0.08 |
| 0.825 | 123.75 | 0.2232 | 0.0828 |
| 0.825 | 138.75 | 0.1298 | 0.0529 |
| 0.825 | 146.25 | 0.1368 | 0.0541 |
| 0.825 | 153.75 | 0.1679 | 0.0661 |
| 0.825 | 161.25 | 0.1789 | 0.0831 |
| 0.825 | 176.25 | 0.1669 | 0.0764 |
| 0.825 | 191.25 | 0.1068 | 0.0483 |
| 0.825 | 198.75 | 0.1761 | 0.0822 |
| 0.825 | 206.25 | 0.1609 | 0.0545 |
| 0.825 | 213.75 | 0.1792 | 0.0733 |
| 0.825 | 221.25 | 0.175 | 0.0669 |
| 0.825 | 228.75 | 0.2426 | 0.1111 |
| 0.825 | 236.25 | 0.2564 | 0.1358 |
| 0.825 | 251.25 | 0.1764 | 0.0922 |
| 0.825 | 258.75 | 0.2493 | 0.103 |
| 0.825 | 273.75 | 0.2327 | 0.1196 |
| 0.825 | 288.75 | 0.1596 | 0.0761 |
| 0.825 | 296.25 | 0.1303 | 0.0616 |
| 0.825 | 311.25 | 0.1317 | 0.0673 |
| 0.825 | 326.25 | 0.1843 | 0.076 |
| 0.825 | 333.75 | 0.1959 | 0.1103 |
| 0.825 | 341.25 | 0.2023 | 0.0862 |
| 0.825 | 348.75 | 0.3074 | 0.146 |
| 0.825 | 356.25 | 0.2871 | 0.1477 |
| 0.875 | 3.75 | 0.1814 | 0.0991 |
| 0.875 | 11.25 | 0.191 | 0.101 |
| 0.875 | 18.75 | 0.1454 | 0.0627 |
| 0.875 | 26.25 | 0.16 | 0.0647 |
| 0.875 | 33.75 | 0.1366 | 0.0536 |
| 0.875 | 41.25 | 0.1251 | 0.0526 |
| 0.875 | 71.25 | 0.2153 | 0.1111 |
| 0.875 | 86.25 | 0.2435 | 0.109 |
| 0.875 | 93.75 | 0.3266 | 0.1406 |
| 0.875 | 101.25 | 0.3158 | 0.1401 |
| 0.875 | 116.25 | 0.1906 | 0.1045 |
| 0.875 | 123.75 | 0.1968 | 0.0972 |
| 0.875 | 131.25 | 0.2174 | 0.0917 |
| 0.875 | 138.75 | 0.1396 | 0.0477 |
| 0.875 | 146.25 | 0.1388 | 0.0499 |
| 0.875 | 153.75 | 0.1831 | 0.0743 |
| 0.875 | 161.25 | 0.199 | 0.0923 |
| 0.875 | 168.75 | 0.2202 | 0.0825 |
| 0.875 | 176.25 | 0.227 | 0.0952 |
| 0.875 | 183.75 | 0.1416 | 0.0698 |
| 0.875 | 191.25 | 0.1665 | 0.0686 |
| 0.875 | 198.75 | 0.1883 | 0.0797 |
| 0.875 | 206.25 | 0.1995 | 0.0792 |
| 0.875 | 213.75 | 0.2915 | 0.1439 |
| 0.875 | 221.25 | 0.2245 | 0.0753 |
| 0.875 | 228.75 | 0.262 | 0.1353 |
| 0.875 | 236.25 | 0.258 | 0.1212 |
| 0.875 | 243.75 | 0.2453 | 0.13 |
| 0.875 | 273.75 | 0.2311 | 0.1183 |
| 0.875 | 281.25 | 0.2003 | 0.0897 |
| 0.875 | 303.75 | 0.1729 | 0.0798 |
| 0.875 | 318.75 | 0.172 | 0.0793 |
| 0.875 | 333.75 | 0.1497 | 0.0695 |
| 0.875 | 341.25 | 0.1413 | 0.064 |
| 0.875 | 348.75 | 0.2426 | 0.1164 |
| 0.875 | 356.25 | 0.2202 | 0.0838 |
| 0.925 | 11.25 | 0.1123 | 0.046 |
| 0.925 | 26.25 | 0.1394 | 0.0591 |
| 0.925 | 56.25 | 0.1403 | 0.085 |
| 0.925 | 78.75 | 0.1921 | 0.102 |
| 0.925 | 93.75 | 0.1729 | 0.0802 |
| 0.925 | 123.75 | 0.0997 | 0.0517 |
| 0.925 | 138.75 | 0.1788 | 0.1183 |
| 0.925 | 146.25 | 0.1993 | 0.0913 |
| 0.925 | 153.75 | 0.1475 | 0.0884 |
| 0.925 | 161.25 | 0.0998 | 0.0401 |
| 0.925 | 168.75 | 0.1303 | 0.0658 |
| 0.925 | 206.25 | 0.2658 | 0.1711 |
| 0.925 | 213.75 | 0.2427 | 0.1407 |
| 0.925 | 236.25 | 0.1847 | 0.1098 |
| 0.925 | 251.25 | 0.1972 | 0.1184 |
| 0.925 | 266.25 | 0.1578 | 0.0792 |
| 0.925 | 273.75 | 0.1417 | 0.0855 |
| 0.925 | 281.25 | 0.1112 | 0.0517 |
| 0.925 | 288.75 | 0.1118 | 0.069 |
| 0.925 | 296.25 | 0.1333 | 0.0913 |
| 0.925 | 303.75 | 0.164 | 0.0981 |
| 0.925 | 326.25 | 0.1191 | 0.0664 |
| 0.925 | 333.75 | 0.116 | 0.072 |
| 0.925 | 348.75 | 0.1384 | 0.0663 |
| 0.975 | 3.75 | 0.1504 | 0.0583 |
| 0.975 | 11.25 | 0.2337 | 0.1061 |
| 0.975 | 18.75 | 0.2378 | 0.0963 |
| 0.975 | 26.25 | 0.1056 | 0.0425 |
| 0.975 | 33.75 | 0.2657 | 0.1273 |
| 0.975 | 48.75 | 0.1797 | 0.0834 |
| 0.975 | 56.25 | 0.2412 | 0.1269 |
| 0.975 | 78.75 | 0.1092 | 0.0449 |
| 0.975 | 86.25 | 0.2125 | 0.1119 |
| 0.975 | 93.75 | 0.1078 | 0.0502 |
| 0.975 | 123.75 | 0.2212 | 0.107 |
| 0.975 | 131.25 | 0.1991 | 0.0914 |
| 0.975 | 138.75 | 0.2942 | 0.1686 |
| 0.975 | 146.25 | 0.1482 | 0.0697 |
| 0.975 | 153.75 | 0.1804 | 0.0767 |
| 0.975 | 161.25 | 0.1996 | 0.0873 |
| 0.975 | 168.75 | 0.1302 | 0.051 |
| 0.975 | 183.75 | 0.1695 | 0.0749 |
| 0.975 | 191.25 | 0.1729 | 0.0655 |
| 0.975 | 198.75 | 0.1942 | 0.0949 |
| 0.975 | 213.75 | 0.1504 | 0.0674 |
| 0.975 | 221.25 | 0.2028 | 0.0992 |
| 0.975 | 228.75 | 0.1252 | 0.0495 |
| 0.975 | 236.25 | 0.1538 | 0.0687 |
| 0.975 | 243.75 | 0.3539 | 0.201 |
| 0.975 | 251.25 | 0.1346 | 0.0611 |
| 0.975 | 258.75 | 0.1598 | 0.0751 |
| 0.975 | 273.75 | 0.1074 | 0.0406 |
| 0.975 | 281.25 | 0.1557 | 0.0673 |
| 0.975 | 288.75 | 0.1933 | 0.0848 |
| 0.975 | 296.25 | 0.1009 | 0.0408 |
| 0.975 | 303.75 | 0.191 | 0.0745 |
| 0.975 | 311.25 | 0.1011 | 0.0382 |
| 0.975 | 318.75 | 0.208 | 0.0748 |
| 0.975 | 326.25 | 0.3264 | 0.1447 |
| 0.975 | 333.75 | 0.1761 | 0.078 |
| 0.975 | 341.25 | 0.1203 | 0.0441 |
| 0.975 | 348.75 | 0.1367 | 0.0523 |
| 0.975 | 356.25 | 0.1728 | 0.0612 |
Experiment comment: