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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 : | 0.35 — 0.45 GeV2 | |
---|---|---|
W : | 1.3 — 1.32 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 | 13.42 | 1.358 | 2.246 |
7.5 | 45 | 16.31 | 1.859 | 2.304 |
7.5 | 75 | 18.95 | 2.117 | 2.318 |
7.5 | 105 | 15.81 | 2.114 | 2.27 |
7.5 | 255 | 20.49 | 4.643 | 2.359 |
7.5 | 285 | 13.06 | 1.664 | 2.24 |
7.5 | 315 | 12.51 | 1.475 | 2.212 |
7.5 | 345 | 15.56 | 1.655 | 2.244 |
22.5 | 15 | 11.85 | 0.945 | 1.008 |
22.5 | 45 | 12.13 | 1.643 | 1.036 |
22.5 | 75 | 15.05 | 2.282 | 1.108 |
22.5 | 165 | 12.34 | 1.865 | 1.035 |
22.5 | 195 | 12.85 | 1.981 | 1.015 |
22.5 | 285 | 16.76 | 5.001 | 1.07 |
22.5 | 315 | 11.85 | 1.814 | 1.024 |
22.5 | 345 | 13.21 | 1.397 | 1.037 |
37.5 | 45 | 12.63 | 4.022 | 0.9843 |
37.5 | 75 | 9.731 | 1.377 | 0.9874 |
37.5 | 105 | 10.69 | 2.877 | 0.941 |
37.5 | 135 | 11.39 | 0.6916 | 0.9849 |
37.5 | 165 | 8.383 | 0.4213 | 0.9265 |
37.5 | 195 | 8.596 | 0.4168 | 0.9294 |
37.5 | 225 | 9.506 | 0.6013 | 0.9472 |
37.5 | 255 | 10.55 | 1.514 | 0.9689 |
37.5 | 315 | 10.53 | 2.226 | 0.9603 |
52.5 | 45 | 8.277 | 0.5388 | 0.6377 |
52.5 | 105 | 11.24 | 0.6316 | 0.6941 |
52.5 | 135 | 8.489 | 0.5467 | 0.6504 |
52.5 | 165 | 7.396 | 0.3789 | 0.6337 |
52.5 | 195 | 7.054 | 0.3624 | 0.6197 |
52.5 | 225 | 9.995 | 0.6582 | 0.6813 |
52.5 | 255 | 8.884 | 0.5253 | 0.657 |
52.5 | 285 | 7.87 | 1.012 | 0.6522 |
52.5 | 315 | 8.65 | 0.5057 | 0.6588 |
67.5 | 45 | 5.912 | 1.184 | 0.6105 |
67.5 | 75 | 6.384 | 0.3479 | 0.587 |
67.5 | 105 | 7.654 | 0.3812 | 0.6092 |
67.5 | 135 | 6.564 | 0.4483 | 0.5822 |
67.5 | 165 | 5.097 | 0.2785 | 0.5557 |
67.5 | 195 | 5.362 | 0.2943 | 0.5601 |
67.5 | 225 | 7.848 | 0.5369 | 0.6052 |
67.5 | 255 | 9.132 | 0.4332 | 0.6373 |
67.5 | 285 | 7.361 | 0.7346 | 0.5933 |
67.5 | 315 | 5.98 | 1.204 | 0.5798 |
82.5 | 15 | 2.427 | 0.4597 | 0.395 |
82.5 | 45 | 6.284 | 2.106 | 0.4919 |
82.5 | 75 | 6.08 | 0.3452 | 0.4581 |
82.5 | 105 | 6.561 | 0.3197 | 0.4774 |
82.5 | 135 | 5.751 | 0.4246 | 0.4542 |
82.5 | 165 | 4.271 | 0.2927 | 0.421 |
82.5 | 195 | 4.068 | 0.2752 | 0.4201 |
82.5 | 225 | 5.769 | 0.4354 | 0.4528 |
82.5 | 255 | 7.392 | 0.3394 | 0.5127 |
82.5 | 285 | 6.03 | 0.3256 | 0.4707 |
82.5 | 315 | 4.548 | 0.9005 | 0.4166 |
97.5 | 45 | 3.802 | 0.2943 | 0.3481 |
97.5 | 75 | 4.755 | 0.3926 | 0.3745 |
97.5 | 105 | 5.068 | 0.279 | 0.3793 |
97.5 | 135 | 4.935 | 0.3249 | 0.3664 |
97.5 | 165 | 3.488 | 0.2413 | 0.3461 |
97.5 | 195 | 3.341 | 0.2172 | 0.3403 |
97.5 | 225 | 4.855 | 0.3542 | 0.3705 |
97.5 | 255 | 5.707 | 0.2862 | 0.401 |
97.5 | 285 | 4.995 | 0.3817 | 0.3726 |
97.5 | 315 | 3.356 | 0.2286 | 0.3328 |
112.5 | 15 | 1.896 | 0.3221 | 0.2192 |
112.5 | 45 | 2.526 | 0.1977 | 0.2316 |
112.5 | 75 | 3.319 | 0.2923 | 0.2495 |
112.5 | 105 | 4.241 | 0.2638 | 0.2817 |
112.5 | 135 | 3.455 | 0.3101 | 0.2658 |
112.5 | 165 | 2.886 | 0.2752 | 0.2455 |
112.5 | 195 | 2.39 | 0.222 | 0.2477 |
112.5 | 225 | 3.366 | 0.2778 | 0.2586 |
112.5 | 255 | 3.394 | 0.2106 | 0.2598 |
112.5 | 285 | 2.635 | 0.2574 | 0.2358 |
112.5 | 315 | 2.17 | 0.196 | 0.226 |
112.5 | 345 | 1.279 | 0.1754 | 0.211 |
127.5 | 15 | 0.9033 | 0.1593 | 0.2288 |
127.5 | 45 | 1.598 | 0.1747 | 0.2381 |
127.5 | 75 | 2.189 | 0.2272 | 0.2505 |
127.5 | 105 | 2.464 | 0.2439 | 0.2567 |
127.5 | 135 | 2.08 | 0.2593 | 0.252 |
127.5 | 165 | 1.596 | 0.3399 | 0.2423 |
127.5 | 195 | 1.563 | 0.3183 | 0.2367 |
127.5 | 225 | 1.709 | 0.1981 | 0.2376 |
127.5 | 255 | 2.567 | 0.2817 | 0.2594 |
127.5 | 285 | 2.532 | 0.2541 | 0.268 |
127.5 | 315 | 1.934 | 0.2199 | 0.246 |
127.5 | 345 | 0.82 | 0.1501 | 0.2291 |
142.5 | 15 | 1.035 | 0.2556 | 0.2466 |
142.5 | 45 | 1.431 | 0.2059 | 0.2501 |
142.5 | 75 | 1.772 | 0.2044 | 0.2664 |
142.5 | 105 | 1.62 | 0.7643 | 0.2509 |
142.5 | 255 | 1.21 | 0.2755 | 0.2503 |
142.5 | 285 | 1.186 | 0.1827 | 0.2508 |
142.5 | 315 | 1.335 | 0.215 | 0.2531 |
142.5 | 345 | 1.117 | 0.2056 | 0.246 |
157.5 | 15 | 0.8483 | 0.2732 | 0.4256 |
157.5 | 75 | 0.6935 | 0.3306 | 0.05161 |
157.5 | 345 | 0.9206 | 0.3036 | 0.4231 |