Measurement E141M44
| 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: | 2.2 GeV2 | |
| W: | 1.89 GeV | |
| Ebeam: | 5.499 GeV | |
| Publication: | ||
| cos(θ) | φ, [degree] | dσ/dΩ, [μb/rad] | uncertainty |
|---|---|---|---|
| -0.9 | 7.5 | 0.0513 | 0.0109 |
| -0.9 | 22.5 | 0.0529 | 0.014 |
| -0.9 | 37.5 | 0.0858 | 0.024 |
| -0.9 | 52.5 | 0.054 | 0.0115 |
| -0.9 | 67.5 | 0.0775 | 0.0181 |
| -0.9 | 82.5 | 0.064 | 0.0215 |
| -0.9 | 97.5 | 0.0643 | 0.0212 |
| -0.9 | 112.5 | 0.0672 | 0.0197 |
| -0.9 | 127.5 | 0.066 | 0.0193 |
| -0.9 | 142.5 | 0.0665 | 0.0184 |
| -0.9 | 157.5 | 0.0618 | 0.024 |
| -0.9 | 172.5 | 0.0369 | 0.012 |
| -0.9 | 187.5 | 0.0464 | 0.0146 |
| -0.9 | 202.5 | 0.0381 | 0.0151 |
| -0.9 | 217.5 | 0.0281 | 0.0113 |
| -0.9 | 232.5 | 0.0551 | 0.0168 |
| -0.9 | 247.5 | 0.0377 | 0.0128 |
| -0.9 | 262.5 | 0.042 | 0.0147 |
| -0.9 | 277.5 | 0.0501 | 0.0155 |
| -0.9 | 292.5 | 0.06 | 0.0194 |
| -0.9 | 307.5 | 0.0627 | 0.0205 |
| -0.9 | 322.5 | 0.0668 | 0.0141 |
| -0.9 | 337.5 | 0.0482 | 0.0136 |
| -0.9 | 352.5 | 0.0323 | 0.009 |
| -0.7 | 7.5 | 0.0874 | 0.02 |
| -0.7 | 22.5 | 0.0891 | 0.0186 |
| -0.7 | 37.5 | 0.1065 | 0.0203 |
| -0.7 | 52.5 | 0.1291 | 0.0216 |
| -0.7 | 67.5 | 0.1265 | 0.0231 |
| -0.7 | 82.5 | 0.1122 | 0.0209 |
| -0.7 | 97.5 | 0.0886 | 0.0155 |
| -0.7 | 112.5 | 0.0946 | 0.0208 |
| -0.7 | 127.5 | 0.0767 | 0.0189 |
| -0.7 | 142.5 | 0.063 | 0.0151 |
| -0.7 | 157.5 | 0.0712 | 0.0146 |
| -0.7 | 172.5 | 0.0505 | 0.0121 |
| -0.7 | 187.5 | 0.0461 | 0.0104 |
| -0.7 | 202.5 | 0.0649 | 0.0141 |
| -0.7 | 217.5 | 0.0704 | 0.0156 |
| -0.7 | 232.5 | 0.1026 | 0.0177 |
| -0.7 | 247.5 | 0.0804 | 0.014 |
| -0.7 | 262.5 | 0.0985 | 0.0172 |
| -0.7 | 277.5 | 0.0702 | 0.0155 |
| -0.7 | 292.5 | 0.1206 | 0.0209 |
| -0.7 | 307.5 | 0.1143 | 0.0192 |
| -0.7 | 322.5 | 0.0866 | 0.0167 |
| -0.7 | 337.5 | 0.0721 | 0.0157 |
| -0.7 | 352.5 | 0.0828 | 0.0159 |
| -0.5 | 7.5 | 0.0681 | 0.0157 |
| -0.5 | 22.5 | 0.0899 | 0.0227 |
| -0.5 | 37.5 | 0.1053 | 0.0192 |
| -0.5 | 52.5 | 0.1237 | 0.0208 |
| -0.5 | 67.5 | 0.0981 | 0.0179 |
| -0.5 | 82.5 | 0.1358 | 0.023 |
| -0.5 | 97.5 | 0.1201 | 0.0178 |
| -0.5 | 112.5 | 0.0752 | 0.0114 |
| -0.5 | 127.5 | 0.0567 | 0.0093 |
| -0.5 | 142.5 | 0.0392 | 0.0092 |
| -0.5 | 157.5 | 0.0333 | 0.0072 |
| -0.5 | 172.5 | 0.035 | 0.0063 |
| -0.5 | 187.5 | 0.0334 | 0.0062 |
| -0.5 | 202.5 | 0.0391 | 0.0073 |
| -0.5 | 217.5 | 0.0242 | 0.0069 |
| -0.5 | 232.5 | 0.0626 | 0.0103 |
| -0.5 | 247.5 | 0.0682 | 0.011 |
| -0.5 | 262.5 | 0.1012 | 0.0168 |
| -0.5 | 277.5 | 0.0796 | 0.0152 |
| -0.5 | 292.5 | 0.1096 | 0.0206 |
| -0.5 | 307.5 | 0.0906 | 0.0156 |
| -0.5 | 322.5 | 0.0887 | 0.0169 |
| -0.5 | 337.5 | 0.0799 | 0.0245 |
| -0.5 | 352.5 | 0.0765 | 0.0165 |
| -0.3 | 22.5 | 0.073 | 0.0213 |
| -0.3 | 37.5 | 0.1412 | 0.0255 |
| -0.3 | 52.5 | 0.1166 | 0.023 |
| -0.3 | 67.5 | 0.1186 | 0.0246 |
| -0.3 | 82.5 | 0.0954 | 0.016 |
| -0.3 | 97.5 | 0.1183 | 0.0173 |
| -0.3 | 112.5 | 0.1041 | 0.0148 |
| -0.3 | 127.5 | 0.043 | 0.0079 |
| -0.3 | 142.5 | 0.0491 | 0.0097 |
| -0.3 | 157.5 | 0.0491 | 0.0087 |
| -0.3 | 172.5 | 0.0536 | 0.008 |
| -0.3 | 187.5 | 0.0447 | 0.0069 |
| -0.3 | 202.5 | 0.0542 | 0.0092 |
| -0.3 | 217.5 | 0.0391 | 0.0086 |
| -0.3 | 232.5 | 0.0805 | 0.0127 |
| -0.3 | 247.5 | 0.0977 | 0.0126 |
| -0.3 | 262.5 | 0.1118 | 0.0151 |
| -0.3 | 277.5 | 0.1098 | 0.0164 |
| -0.3 | 292.5 | 0.0913 | 0.0211 |
| -0.3 | 307.5 | 0.0892 | 0.0336 |
| -0.3 | 337.5 | 0.0634 | 0.0502 |
| -0.3 | 352.5 | 0.0424 | 0.0153 |
| -0.1 | 22.5 | 0.0863 | 0.0218 |
| -0.1 | 37.5 | 0.1121 | 0.0215 |
| -0.1 | 52.5 | 0.125 | 0.0304 |
| -0.1 | 67.5 | 0.1639 | 0.0357 |
| -0.1 | 82.5 | 0.1346 | 0.0202 |
| -0.1 | 97.5 | 0.129 | 0.018 |
| -0.1 | 112.5 | 0.0937 | 0.0136 |
| -0.1 | 127.5 | 0.1065 | 0.0181 |
| -0.1 | 142.5 | 0.0508 | 0.0107 |
| -0.1 | 157.5 | 0.0617 | 0.0087 |
| -0.1 | 172.5 | 0.0558 | 0.0068 |
| -0.1 | 187.5 | 0.0622 | 0.0072 |
| -0.1 | 202.5 | 0.081 | 0.0134 |
| -0.1 | 217.5 | 0.0572 | 0.0103 |
| -0.1 | 232.5 | 0.0928 | 0.0156 |
| -0.1 | 247.5 | 0.1202 | 0.0162 |
| -0.1 | 262.5 | 0.128 | 0.0175 |
| -0.1 | 277.5 | 0.1239 | 0.0227 |
| 0.1 | 22.5 | 0.109 | 0.0342 |
| 0.1 | 52.5 | 0.1852 | 0.0509 |
| 0.1 | 67.5 | 0.1623 | 0.0412 |
| 0.1 | 82.5 | 0.216 | 0.0482 |
| 0.1 | 97.5 | 0.1645 | 0.0456 |
| 0.1 | 112.5 | 0.0968 | 0.0218 |
| 0.1 | 127.5 | 0.1152 | 0.0212 |
| 0.1 | 142.5 | 0.0669 | 0.0135 |
| 0.1 | 157.5 | 0.1044 | 0.0157 |
| 0.1 | 172.5 | 0.0687 | 0.0095 |
| 0.1 | 187.5 | 0.0686 | 0.0101 |
| 0.1 | 202.5 | 0.1048 | 0.0153 |
| 0.1 | 217.5 | 0.0855 | 0.0164 |
| 0.1 | 232.5 | 0.0557 | 0.0138 |
| 0.1 | 247.5 | 0.1814 | 0.0335 |
| 0.1 | 262.5 | 0.1949 | 0.0543 |
| 0.1 | 277.5 | 0.2453 | 0.0778 |
| 0.1 | 292.5 | 0.2388 | 0.0898 |
| 0.1 | 307.5 | 0.1685 | 0.0795 |
| 0.3 | 37.5 | 0.0612 | 0.0185 |
| 0.3 | 52.5 | 0.1525 | 0.0343 |
| 0.3 | 67.5 | 0.1238 | 0.022 |
| 0.3 | 82.5 | 0.236 | 0.0384 |
| 0.3 | 97.5 | 0.1982 | 0.0381 |
| 0.3 | 112.5 | 0.207 | 0.0578 |
| 0.3 | 127.5 | 0.1452 | 0.0304 |
| 0.3 | 142.5 | 0.1275 | 0.0226 |
| 0.3 | 157.5 | 0.1507 | 0.0214 |
| 0.3 | 172.5 | 0.1636 | 0.0183 |
| 0.3 | 187.5 | 0.1556 | 0.0176 |
| 0.3 | 202.5 | 0.1408 | 0.0198 |
| 0.3 | 217.5 | 0.1779 | 0.0284 |
| 0.3 | 232.5 | 0.1246 | 0.0296 |
| 0.3 | 247.5 | 0.2253 | 0.0735 |
| 0.3 | 262.5 | 0.1799 | 0.0518 |
| 0.3 | 277.5 | 0.128 | 0.0408 |
| 0.3 | 292.5 | 0.1676 | 0.0445 |
| 0.3 | 307.5 | 0.0978 | 0.0342 |
| 0.5 | 22.5 | 0.0736 | 0.0174 |
| 0.5 | 37.5 | 0.1177 | 0.0195 |
| 0.5 | 52.5 | 0.1935 | 0.0337 |
| 0.5 | 67.5 | 0.2791 | 0.0424 |
| 0.5 | 82.5 | 0.2151 | 0.0373 |
| 0.5 | 97.5 | 0.2919 | 0.0526 |
| 0.5 | 112.5 | 0.3046 | 0.093 |
| 0.5 | 127.5 | 0.234 | 0.0451 |
| 0.5 | 142.5 | 0.2114 | 0.0378 |
| 0.5 | 157.5 | 0.2908 | 0.0441 |
| 0.5 | 172.5 | 0.2043 | 0.0259 |
| 0.5 | 187.5 | 0.1769 | 0.0221 |
| 0.5 | 202.5 | 0.1553 | 0.027 |
| 0.5 | 217.5 | 0.1696 | 0.031 |
| 0.5 | 232.5 | 0.3027 | 0.0947 |
| 0.5 | 247.5 | 0.3286 | 0.1007 |
| 0.5 | 262.5 | 0.2615 | 0.0795 |
| 0.5 | 277.5 | 0.2856 | 0.0719 |
| 0.5 | 292.5 | 0.3242 | 0.0579 |
| 0.5 | 307.5 | 0.1941 | 0.044 |
| 0.5 | 322.5 | 0.1504 | 0.0329 |
| 0.5 | 337.5 | 0.0535 | 0.0199 |
| 0.7 | 7.5 | 0.086 | 0.0204 |
| 0.7 | 22.5 | 0.0847 | 0.0207 |
| 0.7 | 37.5 | 0.1328 | 0.019 |
| 0.7 | 52.5 | 0.227 | 0.032 |
| 0.7 | 67.5 | 0.263 | 0.0427 |
| 0.7 | 82.5 | 0.3994 | 0.0603 |
| 0.7 | 97.5 | 0.5441 | 0.0843 |
| 0.7 | 112.5 | 0.4476 | 0.0747 |
| 0.7 | 127.5 | 0.3962 | 0.059 |
| 0.7 | 142.5 | 0.5914 | 0.0916 |
| 0.7 | 157.5 | 0.8187 | 0.1282 |
| 0.7 | 172.5 | 0.9587 | 0.1507 |
| 0.7 | 187.5 | 0.8645 | 0.1358 |
| 0.7 | 202.5 | 1.0279 | 0.1688 |
| 0.7 | 217.5 | 0.6823 | 0.1109 |
| 0.7 | 232.5 | 0.4816 | 0.076 |
| 0.7 | 247.5 | 0.4764 | 0.0841 |
| 0.7 | 262.5 | 0.4815 | 0.1437 |
| 0.7 | 277.5 | 0.2624 | 0.0568 |
| 0.7 | 292.5 | 0.2618 | 0.053 |
| 0.7 | 307.5 | 0.2337 | 0.0418 |
| 0.7 | 322.5 | 0.0709 | 0.0193 |
| 0.7 | 337.5 | 0.1303 | 0.0371 |
| 0.7 | 352.5 | 0.1136 | 0.0279 |
| 0.9 | 7.5 | 0.2651 | 0.0225 |
| 0.9 | 22.5 | 0.2096 | 0.0205 |
| 0.9 | 37.5 | 0.2602 | 0.025 |
| 0.9 | 52.5 | 0.3595 | 0.0339 |
| 0.9 | 67.5 | 0.3238 | 0.035 |
| 0.9 | 82.5 | 0.3921 | 0.0405 |
| 0.9 | 97.5 | 0.4238 | 0.0393 |
| 0.9 | 112.5 | 0.3855 | 0.0358 |
| 0.9 | 127.5 | 0.3269 | 0.0306 |
| 0.9 | 142.5 | 0.3912 | 0.0345 |
| 0.9 | 157.5 | 0.3943 | 0.0337 |
| 0.9 | 172.5 | 0.3164 | 0.0287 |
| 0.9 | 187.5 | 0.3691 | 0.0322 |
| 0.9 | 202.5 | 0.4054 | 0.0343 |
| 0.9 | 217.5 | 0.4394 | 0.035 |
| 0.9 | 232.5 | 0.3166 | 0.0287 |
| 0.9 | 247.5 | 0.4289 | 0.0393 |
| 0.9 | 262.5 | 0.3842 | 0.0371 |
| 0.9 | 277.5 | 0.4687 | 0.0464 |
| 0.9 | 292.5 | 0.3868 | 0.0411 |
| 0.9 | 307.5 | 0.3113 | 0.0319 |
| 0.9 | 322.5 | 0.316 | 0.0295 |
| 0.9 | 337.5 | 0.2656 | 0.0243 |
| 0.9 | 352.5 | 0.2243 | 0.0201 |
Experiment comment: