Measurement E141M151
| 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: | 3.15 GeV2 | |
| W: | 2.01 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| 0.525 | 56.25 | 0.1104 | 0.0429 |
| 0.525 | 131.25 | 0.1097 | 0.0503 |
| 0.525 | 138.75 | 0.1029 | 0.0578 |
| 0.525 | 153.75 | 0.1276 | 0.0625 |
| 0.525 | 161.25 | 0.11 | 0.0479 |
| 0.525 | 168.75 | 0.1784 | 0.0886 |
| 0.525 | 176.25 | 0.1546 | 0.0783 |
| 0.525 | 198.75 | 0.1207 | 0.0481 |
| 0.525 | 206.25 | 0.1312 | 0.0622 |
| 0.525 | 251.25 | 0.1059 | 0.0615 |
| 0.525 | 281.25 | 0.1315 | 0.0628 |
| 0.525 | 311.25 | 0.1343 | 0.0561 |
| 0.525 | 318.75 | 0.2259 | 0.1211 |
| 0.575 | 56.25 | 0.1105 | 0.044 |
| 0.575 | 78.75 | 0.1707 | 0.0728 |
| 0.575 | 108.75 | 0.131 | 0.0593 |
| 0.575 | 116.25 | 0.1444 | 0.0772 |
| 0.575 | 123.75 | 0.1176 | 0.0473 |
| 0.575 | 161.25 | 0.1247 | 0.0692 |
| 0.575 | 168.75 | 0.1292 | 0.0637 |
| 0.575 | 176.25 | 0.165 | 0.0681 |
| 0.575 | 183.75 | 0.1593 | 0.0712 |
| 0.575 | 191.25 | 0.1484 | 0.0754 |
| 0.575 | 221.25 | 0.117 | 0.0617 |
| 0.575 | 243.75 | 0.1585 | 0.0718 |
| 0.575 | 251.25 | 0.1418 | 0.0735 |
| 0.575 | 281.25 | 0.1095 | 0.0606 |
| 0.575 | 303.75 | 0.1117 | 0.0542 |
| 0.575 | 311.25 | 0.1219 | 0.0542 |
| 0.625 | 56.25 | 0.1003 | 0.0421 |
| 0.625 | 63.75 | 0.1245 | 0.0581 |
| 0.625 | 71.25 | 0.1424 | 0.0592 |
| 0.625 | 78.75 | 0.1587 | 0.092 |
| 0.625 | 86.25 | 0.1573 | 0.0841 |
| 0.625 | 108.75 | 0.1908 | 0.0982 |
| 0.625 | 116.25 | 0.1493 | 0.0729 |
| 0.625 | 123.75 | 0.1091 | 0.0443 |
| 0.625 | 131.25 | 0.1154 | 0.0537 |
| 0.625 | 138.75 | 0.1363 | 0.0651 |
| 0.625 | 161.25 | 0.148 | 0.0663 |
| 0.625 | 168.75 | 0.1249 | 0.0504 |
| 0.625 | 176.25 | 0.1498 | 0.0567 |
| 0.625 | 183.75 | 0.1386 | 0.071 |
| 0.625 | 191.25 | 0.1057 | 0.0354 |
| 0.625 | 198.75 | 0.1602 | 0.0739 |
| 0.625 | 206.25 | 0.1319 | 0.0525 |
| 0.625 | 236.25 | 0.1365 | 0.0639 |
| 0.625 | 251.25 | 0.1167 | 0.0605 |
| 0.625 | 281.25 | 0.1164 | 0.0592 |
| 0.625 | 296.25 | 0.1087 | 0.0483 |
| 0.625 | 303.75 | 0.155 | 0.0825 |
| 0.675 | 63.75 | 0.1184 | 0.0571 |
| 0.675 | 71.25 | 0.112 | 0.0422 |
| 0.675 | 93.75 | 0.1268 | 0.0652 |
| 0.675 | 101.25 | 0.1337 | 0.0582 |
| 0.675 | 116.25 | 0.18 | 0.0842 |
| 0.675 | 123.75 | 0.0992 | 0.0512 |
| 0.675 | 131.25 | 0.1065 | 0.0441 |
| 0.675 | 153.75 | 0.1728 | 0.0871 |
| 0.675 | 161.25 | 0.1147 | 0.0404 |
| 0.675 | 168.75 | 0.1992 | 0.0892 |
| 0.675 | 176.25 | 0.1996 | 0.0808 |
| 0.675 | 198.75 | 0.1776 | 0.0725 |
| 0.675 | 206.25 | 0.2437 | 0.1196 |
| 0.675 | 236.25 | 0.1824 | 0.091 |
| 0.675 | 243.75 | 0.1019 | 0.0442 |
| 0.675 | 251.25 | 0.1024 | 0.0546 |
| 0.675 | 258.75 | 0.1068 | 0.0432 |
| 0.675 | 266.25 | 0.13 | 0.0708 |
| 0.675 | 288.75 | 0.1744 | 0.0731 |
| 0.675 | 303.75 | 0.1238 | 0.0566 |
| 0.725 | 63.75 | 0.1106 | 0.0477 |
| 0.725 | 71.25 | 0.1172 | 0.0538 |
| 0.725 | 78.75 | 0.106 | 0.0576 |
| 0.725 | 108.75 | 0.1781 | 0.0749 |
| 0.725 | 116.25 | 0.1981 | 0.1049 |
| 0.725 | 123.75 | 0.1333 | 0.0664 |
| 0.725 | 131.25 | 0.1652 | 0.0865 |
| 0.725 | 138.75 | 0.1844 | 0.0946 |
| 0.725 | 146.25 | 0.1565 | 0.062 |
| 0.725 | 153.75 | 0.1245 | 0.0585 |
| 0.725 | 161.25 | 0.1171 | 0.0617 |
| 0.725 | 176.25 | 0.1603 | 0.0645 |
| 0.725 | 183.75 | 0.103 | 0.0372 |
| 0.725 | 213.75 | 0.1133 | 0.0454 |
| 0.725 | 221.25 | 0.1014 | 0.0408 |
| 0.725 | 243.75 | 0.2054 | 0.1022 |
| 0.725 | 266.25 | 0.122 | 0.0636 |
| 0.725 | 281.25 | 0.1618 | 0.0859 |
| 0.775 | 63.75 | 0.1313 | 0.0472 |
| 0.775 | 71.25 | 0.164 | 0.0854 |
| 0.775 | 78.75 | 0.1796 | 0.0749 |
| 0.775 | 86.25 | 0.2079 | 0.0966 |
| 0.775 | 93.75 | 0.1694 | 0.0656 |
| 0.775 | 123.75 | 0.1374 | 0.0609 |
| 0.775 | 131.25 | 0.1556 | 0.073 |
| 0.775 | 146.25 | 0.1082 | 0.0476 |
| 0.775 | 153.75 | 0.2201 | 0.0828 |
| 0.775 | 161.25 | 0.2127 | 0.0976 |
| 0.775 | 168.75 | 0.1347 | 0.0614 |
| 0.775 | 176.25 | 0.1794 | 0.0709 |
| 0.775 | 183.75 | 0.1878 | 0.0829 |
| 0.775 | 191.25 | 0.1134 | 0.0379 |
| 0.775 | 206.25 | 0.1325 | 0.0484 |
| 0.775 | 213.75 | 0.1267 | 0.0531 |
| 0.775 | 221.25 | 0.1364 | 0.07 |
| 0.775 | 228.75 | 0.1545 | 0.0699 |
| 0.775 | 236.25 | 0.1083 | 0.0416 |
| 0.775 | 243.75 | 0.1039 | 0.0327 |
| 0.775 | 251.25 | 0.1167 | 0.0612 |
| 0.775 | 273.75 | 0.17 | 0.0749 |
| 0.775 | 296.25 | 0.1043 | 0.0573 |
| 0.825 | 3.75 | 0.1204 | 0.0668 |
| 0.825 | 18.75 | 0.1334 | 0.0715 |
| 0.825 | 26.25 | 0.1286 | 0.0689 |
| 0.825 | 63.75 | 0.1718 | 0.0638 |
| 0.825 | 71.25 | 0.1736 | 0.0682 |
| 0.825 | 78.75 | 0.2739 | 0.1355 |
| 0.825 | 86.25 | 0.1855 | 0.0818 |
| 0.825 | 93.75 | 0.216 | 0.0855 |
| 0.825 | 108.75 | 0.2013 | 0.0917 |
| 0.825 | 123.75 | 0.1853 | 0.0709 |
| 0.825 | 131.25 | 0.1763 | 0.0743 |
| 0.825 | 138.75 | 0.1225 | 0.0439 |
| 0.825 | 146.25 | 0.1682 | 0.0848 |
| 0.825 | 161.25 | 0.2215 | 0.1104 |
| 0.825 | 191.25 | 0.227 | 0.1121 |
| 0.825 | 213.75 | 0.15 | 0.0529 |
| 0.825 | 221.25 | 0.2121 | 0.1053 |
| 0.825 | 228.75 | 0.1646 | 0.0611 |
| 0.825 | 243.75 | 0.1464 | 0.0555 |
| 0.825 | 251.25 | 0.1477 | 0.0754 |
| 0.825 | 273.75 | 0.1928 | 0.0905 |
| 0.825 | 311.25 | 0.1449 | 0.0794 |
| 0.825 | 348.75 | 0.1738 | 0.0803 |
| 0.875 | 3.75 | 0.1801 | 0.0723 |
| 0.875 | 11.25 | 0.1394 | 0.0541 |
| 0.875 | 18.75 | 0.1486 | 0.071 |
| 0.875 | 26.25 | 0.1367 | 0.0674 |
| 0.875 | 33.75 | 0.1422 | 0.0502 |
| 0.875 | 41.25 | 0.1443 | 0.0706 |
| 0.875 | 56.25 | 0.1254 | 0.0646 |
| 0.875 | 63.75 | 0.2115 | 0.0962 |
| 0.875 | 71.25 | 0.1971 | 0.0818 |
| 0.875 | 78.75 | 0.1761 | 0.0512 |
| 0.875 | 86.25 | 0.2095 | 0.0688 |
| 0.875 | 93.75 | 0.2897 | 0.1081 |
| 0.875 | 101.25 | 0.2479 | 0.0926 |
| 0.875 | 108.75 | 0.2493 | 0.0847 |
| 0.875 | 116.25 | 0.2677 | 0.1126 |
| 0.875 | 123.75 | 0.2183 | 0.0914 |
| 0.875 | 131.25 | 0.2344 | 0.0768 |
| 0.875 | 138.75 | 0.2183 | 0.0854 |
| 0.875 | 146.25 | 0.3158 | 0.1547 |
| 0.875 | 153.75 | 0.2123 | 0.0849 |
| 0.875 | 161.25 | 0.3083 | 0.1206 |
| 0.875 | 168.75 | 0.1832 | 0.0581 |
| 0.875 | 176.25 | 0.3113 | 0.1515 |
| 0.875 | 183.75 | 0.1745 | 0.0615 |
| 0.875 | 191.25 | 0.1594 | 0.067 |
| 0.875 | 198.75 | 0.2003 | 0.0739 |
| 0.875 | 213.75 | 0.1903 | 0.0794 |
| 0.875 | 221.25 | 0.1864 | 0.0618 |
| 0.875 | 236.25 | 0.1898 | 0.0867 |
| 0.875 | 243.75 | 0.102 | 0.0412 |
| 0.875 | 258.75 | 0.1146 | 0.0421 |
| 0.875 | 266.25 | 0.1157 | 0.0488 |
| 0.875 | 273.75 | 0.2153 | 0.0983 |
| 0.875 | 281.25 | 0.1794 | 0.063 |
| 0.875 | 288.75 | 0.2145 | 0.0879 |
| 0.875 | 296.25 | 0.1577 | 0.0612 |
| 0.875 | 318.75 | 0.1324 | 0.0599 |
| 0.875 | 326.25 | 0.1363 | 0.0599 |
| 0.875 | 333.75 | 0.1359 | 0.0741 |
| 0.875 | 341.25 | 0.1614 | 0.0838 |
| 0.875 | 348.75 | 0.2332 | 0.084 |
| 0.875 | 356.25 | 0.2134 | 0.0769 |
| 0.925 | 3.75 | 0.4051 | 0.2034 |
| 0.925 | 11.25 | 0.1139 | 0.045 |
| 0.925 | 18.75 | 0.4299 | 0.2403 |
| 0.925 | 26.25 | 0.1317 | 0.0571 |
| 0.925 | 33.75 | 0.1398 | 0.0602 |
| 0.925 | 41.25 | 0.2439 | 0.1266 |
| 0.925 | 48.75 | 0.2325 | 0.1365 |
| 0.925 | 56.25 | 0.1303 | 0.0563 |
| 0.925 | 63.75 | 0.1022 | 0.0453 |
| 0.925 | 71.25 | 0.2127 | 0.092 |
| 0.925 | 78.75 | 0.2529 | 0.0942 |
| 0.925 | 86.25 | 0.1971 | 0.0898 |
| 0.925 | 93.75 | 0.2764 | 0.1417 |
| 0.925 | 101.25 | 0.464 | 0.2904 |
| 0.925 | 108.75 | 0.5911 | 0.3655 |
| 0.925 | 123.75 | 0.2793 | 0.1237 |
| 0.925 | 131.25 | 0.169 | 0.0783 |
| 0.925 | 138.75 | 0.2743 | 0.1153 |
| 0.925 | 153.75 | 0.2208 | 0.1015 |
| 0.925 | 161.25 | 0.2563 | 0.1222 |
| 0.925 | 168.75 | 0.3285 | 0.1373 |
| 0.925 | 176.25 | 0.1158 | 0.0464 |
| 0.925 | 183.75 | 0.3286 | 0.1533 |
| 0.925 | 191.25 | 0.6121 | 0.3809 |
| 0.925 | 198.75 | 0.1964 | 0.086 |
| 0.925 | 206.25 | 0.702 | 0.4347 |
| 0.925 | 213.75 | 0.2881 | 0.1654 |
| 0.925 | 221.25 | 0.3337 | 0.1568 |
| 0.925 | 228.75 | 0.2232 | 0.0926 |
| 0.925 | 236.25 | 0.5546 | 0.3069 |
| 0.925 | 243.75 | 0.6036 | 0.3729 |
| 0.925 | 251.25 | 0.3234 | 0.1641 |
| 0.925 | 258.75 | 0.1845 | 0.077 |
| 0.925 | 266.25 | 0.2478 | 0.1279 |
| 0.925 | 273.75 | 0.1707 | 0.0837 |
| 0.925 | 281.25 | 0.3713 | 0.1867 |
| 0.925 | 288.75 | 0.2241 | 0.0961 |
| 0.925 | 296.25 | 0.2255 | 0.1082 |
| 0.925 | 303.75 | 0.3062 | 0.1953 |
| 0.925 | 311.25 | 0.1796 | 0.0825 |
| 0.925 | 318.75 | 0.1512 | 0.0708 |
| 0.925 | 326.25 | 0.6672 | 0.4107 |
| 0.925 | 333.75 | 0.586 | 0.3629 |
| 0.925 | 341.25 | 0.1821 | 0.0764 |
| 0.925 | 348.75 | 0.3301 | 0.1315 |
| 0.925 | 356.25 | 0.0997 | 0.0357 |
| 0.975 | 3.75 | 0.3593 | 0.1316 |
| 0.975 | 11.25 | 0.5485 | 0.2341 |
| 0.975 | 18.75 | 0.2012 | 0.0695 |
| 0.975 | 26.25 | 0.2051 | 0.08 |
| 0.975 | 33.75 | 0.2016 | 0.068 |
| 0.975 | 41.25 | 0.1803 | 0.0595 |
| 0.975 | 48.75 | 0.4217 | 0.1375 |
| 0.975 | 56.25 | 0.1978 | 0.0689 |
| 0.975 | 63.75 | 0.172 | 0.0555 |
| 0.975 | 71.25 | 0.2734 | 0.0882 |
| 0.975 | 78.75 | 0.1232 | 0.0368 |
| 0.975 | 86.25 | 0.1506 | 0.0537 |
| 0.975 | 93.75 | 0.1722 | 0.0664 |
| 0.975 | 101.25 | 0.1342 | 0.0445 |
| 0.975 | 108.75 | 0.185 | 0.0632 |
| 0.975 | 116.25 | 0.2992 | 0.1098 |
| 0.975 | 123.75 | 0.2156 | 0.0813 |
| 0.975 | 131.25 | 0.3474 | 0.1426 |
| 0.975 | 138.75 | 0.3382 | 0.1368 |
| 0.975 | 146.25 | 0.1766 | 0.0551 |
| 0.975 | 153.75 | 0.4116 | 0.1397 |
| 0.975 | 161.25 | 0.2393 | 0.0721 |
| 0.975 | 168.75 | 0.3577 | 0.1275 |
| 0.975 | 176.25 | 0.1993 | 0.071 |
| 0.975 | 183.75 | 0.4869 | 0.1981 |
| 0.975 | 191.25 | 0.5044 | 0.2326 |
| 0.975 | 198.75 | 0.2318 | 0.0831 |
| 0.975 | 206.25 | 0.1497 | 0.0585 |
| 0.975 | 213.75 | 0.3349 | 0.1344 |
| 0.975 | 221.25 | 0.4177 | 0.1472 |
| 0.975 | 228.75 | 0.2883 | 0.0965 |
| 0.975 | 236.25 | 0.3773 | 0.1572 |
| 0.975 | 243.75 | 0.1862 | 0.0645 |
| 0.975 | 251.25 | 0.1862 | 0.0598 |
| 0.975 | 266.25 | 0.247 | 0.0937 |
| 0.975 | 273.75 | 0.2149 | 0.0668 |
| 0.975 | 281.25 | 0.2022 | 0.0704 |
| 0.975 | 288.75 | 0.2128 | 0.072 |
| 0.975 | 296.25 | 0.149 | 0.0553 |
| 0.975 | 303.75 | 0.3341 | 0.1411 |
| 0.975 | 311.25 | 0.1767 | 0.0564 |
| 0.975 | 318.75 | 0.3168 | 0.1183 |
| 0.975 | 326.25 | 0.3656 | 0.1332 |
| 0.975 | 333.75 | 0.2659 | 0.0901 |
| 0.975 | 341.25 | 0.252 | 0.0955 |
| 0.975 | 348.75 | 0.4049 | 0.1614 |
| 0.975 | 356.25 | 0.2118 | 0.0608 |
Experiment comment: