Measurement E141M156
| 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: | 1.78 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| 0.525 | 33.75 | 0.1028 | 0.06 |
| 0.525 | 41.25 | 0.1177 | 0.0635 |
| 0.525 | 48.75 | 0.1131 | 0.065 |
| 0.525 | 56.25 | 0.1114 | 0.0604 |
| 0.525 | 78.75 | 0.1093 | 0.0635 |
| 0.525 | 138.75 | 0.1364 | 0.0635 |
| 0.525 | 168.75 | 0.1102 | 0.0576 |
| 0.525 | 183.75 | 0.1265 | 0.0712 |
| 0.525 | 191.25 | 0.1518 | 0.0803 |
| 0.525 | 213.75 | 0.1161 | 0.0579 |
| 0.525 | 221.25 | 0.1298 | 0.0665 |
| 0.525 | 236.25 | 0.1113 | 0.0546 |
| 0.525 | 273.75 | 0.1681 | 0.1022 |
| 0.575 | 101.25 | 0.1693 | 0.0803 |
| 0.575 | 116.25 | 0.1856 | 0.0946 |
| 0.575 | 183.75 | 0.1169 | 0.046 |
| 0.575 | 191.25 | 0.1165 | 0.0632 |
| 0.575 | 221.25 | 0.1251 | 0.0684 |
| 0.575 | 236.25 | 0.1026 | 0.0616 |
| 0.575 | 296.25 | 0.1038 | 0.0603 |
| 0.625 | 33.75 | 0.1569 | 0.0869 |
| 0.625 | 56.25 | 0.1331 | 0.072 |
| 0.625 | 63.75 | 0.148 | 0.0837 |
| 0.625 | 93.75 | 0.1532 | 0.0696 |
| 0.625 | 116.25 | 0.1618 | 0.0841 |
| 0.625 | 183.75 | 0.1247 | 0.0598 |
| 0.625 | 191.25 | 0.1478 | 0.0804 |
| 0.625 | 213.75 | 0.1372 | 0.0837 |
| 0.625 | 258.75 | 0.1923 | 0.111 |
| 0.625 | 266.25 | 0.1719 | 0.0988 |
| 0.675 | 56.25 | 0.1371 | 0.0749 |
| 0.675 | 63.75 | 0.1508 | 0.0813 |
| 0.675 | 71.25 | 0.1544 | 0.0747 |
| 0.675 | 86.25 | 0.173 | 0.0759 |
| 0.675 | 108.75 | 0.2376 | 0.1115 |
| 0.675 | 123.75 | 0.1273 | 0.0771 |
| 0.675 | 146.25 | 0.2111 | 0.1169 |
| 0.675 | 153.75 | 0.1115 | 0.0531 |
| 0.675 | 183.75 | 0.1642 | 0.0679 |
| 0.675 | 198.75 | 0.1288 | 0.0642 |
| 0.675 | 206.25 | 0.1143 | 0.054 |
| 0.725 | 86.25 | 0.2074 | 0.1078 |
| 0.725 | 116.25 | 0.2829 | 0.1535 |
| 0.725 | 123.75 | 0.1438 | 0.0747 |
| 0.725 | 153.75 | 0.1497 | 0.0815 |
| 0.725 | 168.75 | 0.1033 | 0.0392 |
| 0.725 | 191.25 | 0.1091 | 0.0551 |
| 0.725 | 198.75 | 0.1503 | 0.0558 |
| 0.725 | 228.75 | 0.2192 | 0.1035 |
| 0.775 | 78.75 | 0.2367 | 0.122 |
| 0.775 | 86.25 | 0.2436 | 0.1213 |
| 0.775 | 101.25 | 0.1893 | 0.1226 |
| 0.775 | 123.75 | 0.2355 | 0.1224 |
| 0.775 | 131.25 | 0.1744 | 0.0915 |
| 0.775 | 146.25 | 0.2632 | 0.118 |
| 0.775 | 153.75 | 0.2259 | 0.1103 |
| 0.775 | 161.25 | 0.2065 | 0.0906 |
| 0.775 | 183.75 | 0.1655 | 0.0759 |
| 0.775 | 191.25 | 0.1646 | 0.0892 |
| 0.775 | 198.75 | 0.2003 | 0.0854 |
| 0.775 | 206.25 | 0.1857 | 0.092 |
| 0.775 | 221.25 | 0.1835 | 0.0902 |
| 0.775 | 236.25 | 0.2074 | 0.1168 |
| 0.775 | 296.25 | 0.1734 | 0.0924 |
| 0.775 | 333.75 | 0.1939 | 0.1092 |
| 0.775 | 348.75 | 0.1932 | 0.098 |
| 0.825 | 18.75 | 0.2077 | 0.1263 |
| 0.825 | 33.75 | 0.1862 | 0.11 |
| 0.825 | 48.75 | 0.1907 | 0.1128 |
| 0.825 | 71.25 | 0.2744 | 0.1467 |
| 0.825 | 101.25 | 0.2358 | 0.1059 |
| 0.825 | 123.75 | 0.2176 | 0.1144 |
| 0.825 | 138.75 | 0.3 | 0.1511 |
| 0.825 | 153.75 | 0.2632 | 0.1454 |
| 0.825 | 161.25 | 0.2667 | 0.1183 |
| 0.825 | 168.75 | 0.1116 | 0.054 |
| 0.825 | 176.25 | 0.1109 | 0.0535 |
| 0.825 | 183.75 | 0.1858 | 0.0766 |
| 0.825 | 191.25 | 0.1854 | 0.0897 |
| 0.825 | 198.75 | 0.2066 | 0.0775 |
| 0.825 | 206.25 | 0.2288 | 0.1101 |
| 0.825 | 213.75 | 0.193 | 0.076 |
| 0.825 | 221.25 | 0.1983 | 0.1107 |
| 0.825 | 236.25 | 0.2746 | 0.1468 |
| 0.825 | 251.25 | 0.2432 | 0.1393 |
| 0.825 | 258.75 | 0.1929 | 0.0918 |
| 0.825 | 303.75 | 0.269 | 0.141 |
| 0.825 | 311.25 | 0.2885 | 0.1618 |
| 0.825 | 318.75 | 0.1116 | 0.0559 |
| 0.825 | 341.25 | 0.2125 | 0.1058 |
| 0.825 | 356.25 | 0.2023 | 0.1261 |
| 0.875 | 3.75 | 0.3134 | 0.1815 |
| 0.875 | 11.25 | 0.301 | 0.148 |
| 0.875 | 33.75 | 0.1936 | 0.1058 |
| 0.875 | 41.25 | 0.2095 | 0.1052 |
| 0.875 | 48.75 | 0.2216 | 0.084 |
| 0.875 | 71.25 | 0.2713 | 0.1231 |
| 0.875 | 78.75 | 0.2142 | 0.1141 |
| 0.875 | 93.75 | 0.2749 | 0.1672 |
| 0.875 | 108.75 | 0.3067 | 0.1374 |
| 0.875 | 131.25 | 0.3182 | 0.1687 |
| 0.875 | 138.75 | 0.3883 | 0.2051 |
| 0.875 | 168.75 | 0.1808 | 0.0657 |
| 0.875 | 176.25 | 0.1767 | 0.0743 |
| 0.875 | 183.75 | 0.2519 | 0.1282 |
| 0.875 | 191.25 | 0.2078 | 0.0922 |
| 0.875 | 198.75 | 0.2962 | 0.1311 |
| 0.875 | 206.25 | 0.2918 | 0.1453 |
| 0.875 | 213.75 | 0.2618 | 0.1023 |
| 0.875 | 221.25 | 0.2498 | 0.1331 |
| 0.875 | 236.25 | 0.2516 | 0.1247 |
| 0.875 | 243.75 | 0.2891 | 0.1473 |
| 0.875 | 251.25 | 0.2908 | 0.1603 |
| 0.875 | 258.75 | 0.1769 | 0.092 |
| 0.875 | 273.75 | 0.2355 | 0.1089 |
| 0.875 | 281.25 | 0.2261 | 0.1033 |
| 0.875 | 288.75 | 0.3007 | 0.1116 |
| 0.875 | 303.75 | 0.3265 | 0.1572 |
| 0.875 | 326.25 | 0.1733 | 0.0803 |
| 0.875 | 333.75 | 0.2682 | 0.1571 |
| 0.875 | 341.25 | 0.2893 | 0.1318 |
| 0.875 | 348.75 | 0.2796 | 0.1398 |
| 0.875 | 356.25 | 0.3007 | 0.1094 |
| 0.925 | 11.25 | 0.2276 | 0.1551 |
| 0.925 | 48.75 | 0.1292 | 0.0623 |
| 0.925 | 63.75 | 0.1186 | 0.0558 |
| 0.925 | 86.25 | 0.1041 | 0.0673 |
| 0.925 | 101.25 | 0.1045 | 0.0578 |
| 0.925 | 123.75 | 0.1002 | 0.052 |
| 0.925 | 131.25 | 0.1257 | 0.0792 |
| 0.925 | 138.75 | 0.2877 | 0.1899 |
| 0.925 | 146.25 | 0.1629 | 0.1132 |
| 0.925 | 153.75 | 0.3114 | 0.1824 |
| 0.925 | 161.25 | 0.5141 | 0.3271 |
| 0.925 | 176.25 | 0.1493 | 0.0737 |
| 0.925 | 183.75 | 0.1154 | 0.0496 |
| 0.925 | 191.25 | 0.1405 | 0.0694 |
| 0.925 | 198.75 | 0.2508 | 0.1491 |
| 0.925 | 206.25 | 0.31 | 0.1817 |
| 0.925 | 221.25 | 0.2008 | 0.0958 |
| 0.925 | 251.25 | 0.1203 | 0.0768 |
| 0.925 | 273.75 | 0.1463 | 0.0838 |
| 0.925 | 288.75 | 0.1518 | 0.0806 |
| 0.925 | 296.25 | 0.1097 | 0.0642 |
| 0.925 | 318.75 | 0.3014 | 0.1988 |
| 0.925 | 341.25 | 0.1235 | 0.0738 |
| 0.925 | 356.25 | 0.1948 | 0.0908 |
| 0.975 | 3.75 | 0.2083 | 0.0952 |
| 0.975 | 11.25 | 0.2807 | 0.1309 |
| 0.975 | 18.75 | 0.1006 | 0.0566 |
| 0.975 | 26.25 | 0.1184 | 0.0557 |
| 0.975 | 41.25 | 0.3797 | 0.1986 |
| 0.975 | 48.75 | 0.2779 | 0.1377 |
| 0.975 | 56.25 | 0.1469 | 0.0729 |
| 0.975 | 63.75 | 0.2239 | 0.1066 |
| 0.975 | 71.25 | 0.4327 | 0.2507 |
| 0.975 | 78.75 | 0.3234 | 0.1912 |
| 0.975 | 86.25 | 0.1946 | 0.1224 |
| 0.975 | 93.75 | 0.1496 | 0.0846 |
| 0.975 | 101.25 | 0.204 | 0.0976 |
| 0.975 | 108.75 | 0.147 | 0.0775 |
| 0.975 | 116.25 | 0.2471 | 0.1494 |
| 0.975 | 123.75 | 0.3791 | 0.2466 |
| 0.975 | 131.25 | 0.1599 | 0.0992 |
| 0.975 | 138.75 | 0.1512 | 0.0747 |
| 0.975 | 146.25 | 0.1732 | 0.0801 |
| 0.975 | 153.75 | 0.1945 | 0.0826 |
| 0.975 | 161.25 | 0.1642 | 0.0762 |
| 0.975 | 168.75 | 0.4274 | 0.2207 |
| 0.975 | 176.25 | 0.184 | 0.0947 |
| 0.975 | 183.75 | 0.1433 | 0.0682 |
| 0.975 | 198.75 | 0.2587 | 0.1552 |
| 0.975 | 213.75 | 0.2047 | 0.0931 |
| 0.975 | 221.25 | 0.1086 | 0.0509 |
| 0.975 | 228.75 | 0.1203 | 0.0558 |
| 0.975 | 236.25 | 0.481 | 0.3102 |
| 0.975 | 243.75 | 0.1404 | 0.074 |
| 0.975 | 251.25 | 0.3038 | 0.1496 |
| 0.975 | 266.25 | 0.3013 | 0.1323 |
| 0.975 | 273.75 | 0.41 | 0.2375 |
| 0.975 | 288.75 | 0.2839 | 0.1688 |
| 0.975 | 296.25 | 0.3376 | 0.1993 |
| 0.975 | 303.75 | 0.3327 | 0.219 |
| 0.975 | 311.25 | 0.2546 | 0.1375 |
| 0.975 | 318.75 | 0.1475 | 0.0672 |
| 0.975 | 333.75 | 0.2169 | 0.132 |
| 0.975 | 341.25 | 0.224 | 0.1017 |
| 0.975 | 348.75 | 0.3844 | 0.2246 |
| 0.975 | 356.25 | 0.5645 | 0.3228 |
Experiment comment: