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Experiment: E89-038 CLAS experiment, 1999
Spokespersons: V. Burkert, R. Minehart
Experiment comment: Beam energy 1.515 GeV. Global 5.8% scaling systematic uncertainty for all data points
Measurement comment: Global 5.8% scaling systematic uncertainty
Publication:
Quantity measured: dσ/dΩ, mcbn/sterad
Differential cross section.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: π+n, polarization: none
Q2 : | 0.45 — 0.55 GeV2 | |
---|---|---|
W : | 1.42 — 1.44 GeV | |
Ebeam : | 1.515 GeV |
Select data slice:
θπ = deg Fit φ dependence: |
Observable quantity measured (Y axis): dσ/dΩ, mcbn/sterad
Parameter (X axis): φπ, deg |
Click here to get data in text file, delimited with tabs.
Click here to get calculated fit coefficients in text file, delimited with tabs.
Measured data:
θπ,
deg |
φπ,
deg |
dσ/dΩ,
mcbn/sterad |
Data errors,
mcbn/sterad |
Systematic errors,
mcbn/sterad |
---|---|---|---|---|
7.5 | 15 | 6.438 | 0.8984 | 0.7989 |
7.5 | 45 | 6.483 | 0.9133 | 0.7706 |
7.5 | 75 | 8.146 | 1.908 | 0.91 |
7.5 | 105 | 8.427 | 1.416 | 0.8365 |
7.5 | 135 | 9.251 | 1.359 | 0.9485 |
7.5 | 165 | 14.32 | 2.818 | 0.9918 |
7.5 | 195 | 7.037 | 1.075 | 0.8368 |
7.5 | 225 | 6.701 | 1.101 | 0.8312 |
7.5 | 255 | 5.93 | 1.011 | 0.8294 |
7.5 | 285 | 6.427 | 1.034 | 0.7862 |
7.5 | 315 | 6.378 | 1.058 | 0.7817 |
7.5 | 345 | 6.37 | 0.9199 | 0.8111 |
22.5 | 45 | 9.557 | 4.775 | 0.6187 |
22.5 | 75 | 5.753 | 1.024 | 0.5541 |
22.5 | 105 | 7.735 | 0.959 | 0.6231 |
22.5 | 135 | 4.237 | 0.5509 | 0.5339 |
22.5 | 165 | 4.877 | 0.5803 | 0.5237 |
22.5 | 195 | 3.823 | 0.4975 | 0.5277 |
22.5 | 225 | 6.017 | 0.7011 | 0.567 |
22.5 | 255 | 5.993 | 0.8592 | 0.5681 |
22.5 | 285 | 8.566 | 1.416 | 0.6063 |
22.5 | 315 | 8.166 | 2.46 | 0.6152 |
37.5 | 45 | 5.914 | 0.4929 | 0.7766 |
37.5 | 75 | 7.157 | 0.5575 | 0.7886 |
37.5 | 105 | 6.017 | 0.7493 | 0.7809 |
37.5 | 255 | 5.838 | 0.7383 | 0.7758 |
37.5 | 285 | 6.583 | 0.4901 | 0.7745 |
37.5 | 315 | 10.96 | 3.949 | 0.8889 |
52.5 | 45 | 4.68 | 0.5861 | 0.386 |
52.5 | 75 | 5.952 | 0.3875 | 0.4122 |
52.5 | 165 | 2.678 | 0.215 | 0.3469 |
52.5 | 195 | 2.937 | 0.2082 | 0.3541 |
52.5 | 225 | 2.66 | 0.3063 | 0.3584 |
52.5 | 285 | 6.324 | 0.4075 | 0.4322 |
52.5 | 315 | 4.738 | 0.5917 | 0.3785 |
67.5 | 15 | 2.719 | 0.4133 | 0.3049 |
67.5 | 45 | 4.34 | 0.4298 | 0.3322 |
67.5 | 75 | 5.39 | 1.372 | 0.3578 |
67.5 | 105 | 5.185 | 0.5082 | 0.3644 |
67.5 | 135 | 3.551 | 0.2931 | 0.3187 |
67.5 | 165 | 2.125 | 0.1582 | 0.2963 |
67.5 | 195 | 2.631 | 0.1808 | 0.3097 |
67.5 | 225 | 3.382 | 0.2617 | 0.3257 |
67.5 | 255 | 5.103 | 0.3319 | 0.3735 |
67.5 | 285 | 5.2 | 2.015 | 0.3536 |
67.5 | 315 | 3.844 | 0.4141 | 0.3339 |
67.5 | 345 | 2.42 | 0.3946 | 0.305 |
82.5 | 15 | 1.444 | 0.252 | 0.229 |
82.5 | 45 | 2.656 | 0.7507 | 0.2454 |
82.5 | 75 | 3.333 | 0.32 | 0.2833 |
82.5 | 105 | 3.374 | 0.21 | 0.2745 |
82.5 | 135 | 2.889 | 0.25 | 0.2506 |
82.5 | 165 | 2.06 | 0.1758 | 0.2366 |
82.5 | 195 | 2.223 | 0.1855 | 0.2405 |
82.5 | 225 | 3.419 | 0.2809 | 0.2696 |
82.5 | 255 | 3.455 | 0.2128 | 0.2728 |
82.5 | 285 | 4.068 | 0.4604 | 0.2859 |
82.5 | 315 | 2.333 | 0.3765 | 0.2542 |
82.5 | 345 | 1.897 | 0.3471 | 0.238 |
97.5 | 45 | 1.254 | 0.1803 | 0.1575 |
97.5 | 75 | 2.458 | 0.2642 | 0.1748 |
97.5 | 105 | 2.534 | 0.1824 | 0.1836 |
97.5 | 135 | 2.41 | 0.2324 | 0.1989 |
97.5 | 165 | 1.485 | 0.1934 | 0.1599 |
97.5 | 195 | 1.956 | 0.2394 | 0.1656 |
97.5 | 225 | 1.821 | 0.2055 | 0.1743 |
97.5 | 255 | 2.786 | 0.2039 | 0.2005 |
97.5 | 285 | 2.309 | 0.2237 | 0.1822 |
97.5 | 315 | 1.337 | 0.1694 | 0.1527 |
112.5 | 15 | 0.5614 | 0.1579 | 0.07753 |
112.5 | 45 | 1.166 | 0.1533 | 0.1229 |
112.5 | 75 | 1.441 | 0.1841 | 0.1267 |
112.5 | 105 | 1.605 | 0.1687 | 0.1443 |
112.5 | 135 | 1.469 | 0.1769 | 0.1304 |
112.5 | 165 | 1.019 | 0.1362 | 0.1126 |
112.5 | 195 | 1.649 | 0.2348 | 0.1398 |
112.5 | 225 | 1.764 | 0.204 | 0.141 |
112.5 | 255 | 1.698 | 0.1797 | 0.1323 |
112.5 | 285 | 1.84 | 0.2231 | 0.1397 |
112.5 | 315 | 1.153 | 0.1923 | 0.1153 |
112.5 | 345 | 0.6509 | 0.2978 | 0.1085 |
127.5 | 15 | 0.4108 | 0.1195 | 0.05311 |
127.5 | 45 | 0.7498 | 0.1183 | 0.1269 |
127.5 | 75 | 1.047 | 0.1663 | 0.1333 |
127.5 | 105 | 0.9099 | 0.1482 | 0.1321 |
127.5 | 135 | 0.8894 | 0.1518 | 0.1245 |
127.5 | 165 | 0.9479 | 0.1892 | 0.1256 |
127.5 | 195 | 1.173 | 0.4325 | 0.1303 |
127.5 | 225 | 1.601 | 0.5073 | 0.1485 |
127.5 | 255 | 1.168 | 0.2062 | 0.1432 |
127.5 | 285 | 1.033 | 0.163 | 0.1324 |
127.5 | 315 | 0.6778 | 0.1406 | 0.1226 |
127.5 | 345 | 0.3299 | 0.09162 | 0.05303 |
142.5 | 15 | 0.194 | 0.05869 | 0.03825 |
142.5 | 45 | 0.5077 | 0.1752 | 0.117 |
142.5 | 75 | 0.4361 | 0.07958 | 0.1112 |
142.5 | 105 | 1.07 | 0.3867 | 0.1209 |
142.5 | 225 | 0.6551 | 0.3243 | 0.04197 |
142.5 | 255 | 1.658 | 0.5293 | 0.1556 |
142.5 | 285 | 0.6876 | 0.1905 | 0.1144 |
142.5 | 315 | 0.4409 | 0.121 | 0.03978 |
142.5 | 345 | 0.2277 | 0.07258 | 0.03839 |
157.5 | 15 | 0.1289 | 0.05512 | 0.01479 |
157.5 | 345 | 0.3116 | 0.2206 | 0.02207 |