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Measurement E8M3

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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 : 0.25 — 0.35 GeV2
W : 1.14 — 1.16 GeV
Ebeam : 1.515 GeV

Select data slice:
θπ = deg

Fit φ dependence:

 Observable quantity measured (Y axis): dσ/dΩ, mcbn/sterad
Plot measurement data

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 4.112 0.9327 0.9227
7.5 45 6.798 1.43 0.9534
7.5 75 9.384 1.632 0.9779
7.5 105 9.974 1.457 0.9901
7.5 135 7.244 1.194 0.9475
7.5 165 7.413 1.092 0.9683
7.5 195 11.25 1.67 1.014
7.5 225 12.84 2.807 1.008
7.5 255 6.048 0.9879 0.9551
7.5 285 7.484 1.259 0.9573
7.5 315 7.576 1.359 0.9976
7.5 345 9.094 1.983 1.001
22.5 15 4.2 0.6164 0.4751
22.5 45 4.806 0.5597 0.479
22.5 75 6.808 0.6961 0.53
22.5 105 6.531 0.6116 0.5334
22.5 135 9.056 0.7452 0.5694
22.5 165 9.206 0.7681 0.6032
22.5 195 8.144 0.6801 0.5697
22.5 225 7.026 0.6057 0.5302
22.5 255 8.554 0.7308 0.5762
22.5 285 6.064 0.7126 0.5032
22.5 315 4.295 0.5401 0.4814
22.5 345 5.234 0.6728 0.5021
37.5 15 2.675 0.7228 0.609
37.5 45 6.646 1.998 0.6878
37.5 75 9.373 2.43 0.7
37.5 105 10.39 1.787 0.7346
37.5 135 9.103 0.6215 0.7157
37.5 165 7.415 0.5332 0.6702
37.5 195 7.909 0.5687 0.6797
37.5 225 9.721 0.6867 0.7226
37.5 255 8.92 1.794 0.6991
37.5 285 6.312 2.592 0.6525
37.5 315 5.132 2.594 0.6379
37.5 345 1.884 0.3626 0.606
52.5 45 2.813 0.3613 0.535
52.5 75 6.713 0.5351 0.5935
52.5 105 9.131 1.637 0.6443
52.5 135 10.11 0.9464 0.6754
52.5 165 8.306 0.5819 0.6233
52.5 195 9.737 0.645 0.666
52.5 225 10.6 1.246 0.6848
52.5 255 10 2.114 0.6893
52.5 285 6.471 0.6358 0.5766
52.5 315 4.466 0.7014 0.566
67.5 45 4.444 0.4028 0.5817
67.5 75 8.068 0.476 0.6378
67.5 105 11.11 0.8458 0.7321
67.5 135 10.24 1.643 0.6688
67.5 165 9.031 0.4663 0.7035
67.5 195 9.399 0.4786 0.6924
67.5 225 9.938 1.29 0.6767
67.5 255 10.28 0.6792 0.7039
67.5 285 8.717 0.4801 0.6493
67.5 315 5.229 0.3826 0.591
82.5 45 6.142 0.8701 0.6363
82.5 75 9.328 0.5365 0.6955
82.5 105 11.57 0.6193 0.753
82.5 135 9.582 0.8861 0.7087
82.5 165 8.56 0.4965 0.6766
82.5 195 7.994 0.4914 0.6781
82.5 225 9.656 1.098 0.7028
82.5 255 10.71 0.5333 0.7311
82.5 285 9.9 0.5205 0.6954
82.5 315 5.342 0.7639 0.6114
97.5 45 5.452 1.023 0.6433
97.5 75 8.715 0.6103 0.7079
97.5 105 11.07 0.5487 0.7561
97.5 135 10.4 1.956 0.7362
97.5 165 6.106 0.4279 0.665
97.5 195 7.366 0.5106 0.6868
97.5 225 9.607 1.036 0.7581
97.5 255 10.71 0.5099 0.7588
97.5 285 10.2 0.59 0.7497
97.5 315 6.717 1.523 0.6487
112.5 15 4.116 1.435 0.6055
112.5 45 6.707 0.599 0.6445
112.5 75 9.028 1.053 0.6863
112.5 105 10.71 0.606 0.7426
112.5 165 7.596 1.62 0.6932
112.5 195 6.198 0.6325 0.6466
112.5 225 7.947 0.6488 0.4617
112.5 255 10.54 0.5459 0.7223
112.5 285 9.42 1.194 0.709
112.5 315 7.333 0.8014 0.6726
127.5 15 3.952 0.8273 0.746
127.5 45 7.965 0.7655 0.7831
127.5 75 11.53 2.244 0.8769
127.5 105 9.566 0.8943 0.8465
127.5 135 10.55 1.839 0.4905
127.5 225 8.477 1.021 0.8086
127.5 255 12.88 1.163 0.9811
127.5 285 8.695 1.032 0.8
127.5 315 7.974 0.7073 0.7873
127.5 345 2.985 0.6661 0.7347
142.5 15 7.099 2.229 1.015
142.5 45 9.892 1.513 1.053
142.5 75 11.77 2.109 1.069
142.5 285 13.31 2.183 1.131
142.5 315 11.17 1.897 0.6177
157.5 15 5.1 1.793 0.2958