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Measurement E8M4

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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 : 1.16 — 1.18 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 5.378 0.8591 0.8228
7.5 45 10.13 2.003 0.9137
7.5 75 6.144 1.14 0.8296
7.5 105 6.084 0.8833 0.8375
7.5 135 9.046 1.18 0.8812
7.5 165 7.184 0.967 0.8682
7.5 195 7.769 1.028 0.877
7.5 225 9.29 1.158 0.8711
7.5 255 10.91 1.494 0.9598
7.5 285 7.098 1.03 0.8682
7.5 315 7.851 1.3 0.8442
7.5 345 9.116 1.958 0.9075
22.5 15 4.161 0.5011 0.5736
22.5 45 6.375 0.692 0.6209
22.5 75 6.391 0.701 0.6172
22.5 105 10.57 0.8302 0.7011
22.5 135 9.424 0.6829 0.6893
22.5 165 9.994 0.716 0.6963
22.5 195 10.22 0.7276 0.7019
22.5 225 9.443 0.7111 0.6641
22.5 255 8.626 0.7019 0.6541
22.5 285 8.034 0.802 0.6376
22.5 315 5.314 0.7023 0.5831
22.5 345 3.545 0.4616 0.5678
37.5 15 2.706 0.5349 0.6926
37.5 45 3.927 0.9604 0.7184
37.5 75 7.23 1.364 0.7459
37.5 105 13.09 1.445 0.8776
37.5 135 11.94 0.6891 0.8357
37.5 165 12.55 0.6842 0.851
37.5 195 12.5 0.6721 0.8588
37.5 225 11.16 0.6937 0.8229
37.5 255 9.567 1.369 0.8019
37.5 285 7.407 1.38 0.7513
37.5 345 2.117 0.4929 0.688
52.5 45 5.374 0.4679 0.7558
52.5 75 10.38 0.6033 0.832
52.5 105 13.3 1.426 0.8833
52.5 135 14.8 1.904 0.9694
52.5 165 11.83 0.682 0.8662
52.5 195 11.49 0.6741 0.8549
52.5 225 15.2 1.571 0.9442
52.5 255 13.89 1.538 0.9088
52.5 285 10.46 0.6233 0.8327
52.5 315 5.489 0.4298 0.7494
67.5 45 7.426 0.4513 0.7962
67.5 75 12.34 0.5652 0.8885
67.5 105 15.95 0.824 0.9767
67.5 135 14.66 1.765 0.9451
67.5 165 10.85 0.4997 0.8726
67.5 195 9.676 0.453 0.8403
67.5 225 14.21 2.008 0.9382
67.5 255 15.58 0.7988 0.9854
67.5 285 12.62 0.5593 0.9054
67.5 315 7.809 0.444 0.8069
82.5 45 10.34 1.648 0.9096
82.5 75 13.25 0.5908 0.9672
82.5 105 15.5 0.6608 1.019
82.5 135 13.91 1.193 1
82.5 165 9.829 0.4876 0.9135
82.5 195 9.72 0.4816 0.9066
82.5 225 11.35 1.202 0.9273
82.5 255 15.74 0.6214 1.049
82.5 285 14.52 0.595 1.008
82.5 315 9.902 1.582 0.9173
97.5 45 8.392 0.7128 0.8266
97.5 75 15.15 0.9588 0.9615
97.5 105 15.23 0.5919 0.9699
97.5 135 12.89 1.081 0.9663
97.5 165 9.687 0.6262 0.8587
97.5 195 8.439 0.5152 0.835
97.5 225 11.87 1.302 0.9042
97.5 255 15.41 0.5707 0.9953
97.5 285 14.24 0.7933 0.9469
97.5 315 8.719 0.7557 0.8344
112.5 15 8.338 2.203 0.831
112.5 45 10.41 0.5897 0.8796
112.5 75 11.85 1.083 0.9019
112.5 105 14.82 0.6386 1
112.5 135 12.35 0.9932 0.978
112.5 165 8.873 0.9036 0.8523
112.5 195 8.301 0.7197 0.8595
112.5 225 10.79 0.9762 0.8871
112.5 255 16.24 0.6409 1.024
112.5 285 12.64 1.066 0.9352
112.5 315 10.88 0.6622 0.8734
112.5 345 5.177 0.7198 0.791
127.5 15 5.566 0.8805 0.7102
127.5 45 9.416 0.5876 0.7788
127.5 75 11.73 1.104 0.8626
127.5 105 13.17 1.116 0.8557
127.5 135 13.24 3.02 0.6178
127.5 225 12.94 1.381 0.8824
127.5 255 13.15 1.055 0.866
127.5 285 10.77 0.9122 0.8365
127.5 315 9.651 0.6424 0.7862
127.5 345 6.883 1.483 0.7378
142.5 15 8.906 1.115 0.9293
142.5 45 10.89 1.294 0.9194
142.5 75 14.47 1.028 1.05
142.5 285 13.76 1.186 1.044
142.5 315 13.2 1.534 0.9686
142.5 345 7.686 1.278 0.9134
157.5 15 11.62 2.729 1.606
157.5 345 9.92 2.008 1.66