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Measurement E8M26

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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 : 1.12 — 1.14 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 5.791 1.925 0.801
7.5 45 4.448 1.376 0.7903
7.5 75 32.36 11.23 1.555
7.5 105 9.084 2.266 0.8757
7.5 135 5.24 1.337 0.7822
7.5 165 4.998 1.218 0.7889
7.5 195 4.919 1.017 0.7843
7.5 225 7.935 2.813 0.8567
7.5 255 4.511 1.002 0.7962
7.5 285 4.912 1.918 0.7885
7.5 315 5.214 1.273 0.8392
7.5 345 3.761 1.112 0.7822
22.5 15 2.237 0.3932 0.3035
22.5 45 4.308 0.7464 0.332
22.5 75 3.623 0.5502 0.3294
22.5 105 3.858 0.4793 0.3336
22.5 135 5.289 0.5623 0.3591
22.5 165 4.344 0.5036 0.3539
22.5 195 5.593 0.6296 0.3815
22.5 225 6.357 0.672 0.3856
22.5 255 4.673 0.5611 0.3386
22.5 285 3.787 0.5703 0.3265
22.5 315 4.159 0.7165 0.3346
22.5 345 2.743 0.5312 0.3117
37.5 15 3.188 1.148 0.3573
37.5 45 3.592 1.051 0.3573
37.5 75 4.192 0.6398 0.373
37.5 105 5.107 0.611 0.3884
37.5 135 5.833 0.54 0.4049
37.5 165 6.66 0.6111 0.435
37.5 195 5.714 0.4991 0.4003
37.5 225 5.285 0.4978 0.3821
37.5 255 4.552 0.5778 0.3752
37.5 285 3.927 0.7383 0.3607
37.5 315 4.681 1.387 0.3777
37.5 345 2.356 0.4394 0.332
52.5 15 2.008 1.055 0.39
52.5 45 2.884 0.8624 0.3931
52.5 75 5.239 1.081 0.4371
52.5 105 6.112 0.8274 0.4623
52.5 135 5.85 0.6028 0.4532
52.5 165 5.525 0.4959 0.4515
52.5 195 5.227 0.4629 0.4453
52.5 225 5.282 0.5494 0.4393
52.5 255 5.241 0.7935 0.4414
52.5 285 5.016 0.7873 0.4324
52.5 315 4.561 1.729 0.4318
52.5 345 1.794 0.5936 0.3904
67.5 45 2.985 0.356 0.3273
67.5 75 4.893 0.4286 0.3652
67.5 105 6.744 0.755 0.4079
67.5 135 5.168 0.6912 0.3691
67.5 165 5.097 0.3799 0.367
67.5 195 4.861 0.3737 0.3826
67.5 225 5.297 0.6891 0.3957
67.5 255 5.635 0.6117 0.3788
67.5 285 4.883 0.4055 0.3505
67.5 315 3.19 0.361 0.3295
82.5 45 3.334 0.3634 0.3679
82.5 75 5.314 0.4126 0.3856
82.5 105 6.361 0.5532 0.4252
82.5 135 6.162 0.6454 0.4244
82.5 165 4.744 0.3576 0.3968
82.5 195 5.208 0.37 0.4112
82.5 225 5.837 0.6895 0.4264
82.5 255 5.409 0.4452 0.4096
82.5 285 5.686 0.416 0.4206
82.5 315 2.94 0.302 0.3664
97.5 45 4.373 1.018 0.4014
97.5 75 5.409 0.4779 0.42
97.5 105 6.517 0.4739 0.4372
97.5 135 6.406 0.746 0.441
97.5 165 4.006 0.3778 0.3857
97.5 195 4.305 0.3735 0.3994
97.5 225 4.939 0.6595 0.4199
97.5 255 6.175 0.4404 0.4323
97.5 285 5.206 0.4448 0.4202
97.5 315 2.489 0.4376 0.3706
112.5 45 2.552 0.4952 0.3537
112.5 75 6.76 0.9675 0.4222
112.5 105 5.834 0.4494 0.4105
112.5 135 5.565 0.732 0.4267
112.5 165 5.249 0.669 0.4121
112.5 195 4.767 0.5075 0.402
112.5 225 4.913 0.6509 0.4143
112.5 255 5.491 0.4191 0.4203
112.5 285 5.291 0.596 0.3961
112.5 315 4.211 1.182 0.3873
127.5 15 2.121 1.142 0.4369
127.5 45 3.896 0.71 0.466
127.5 75 7.323 2.731 0.5403
127.5 105 8.217 1.016 0.5524
127.5 135 3.01 0.6023 0.447
127.5 165 5.961 2.058 0.3201
127.5 225 6.031 1.127 0.504
127.5 255 7.009 0.688 0.5386
127.5 285 7.241 1.493 0.5424
127.5 315 4.377 0.8467 0.4715
142.5 45 5.564 1.553 0.3724
142.5 255 8.42 2.726 0.3724
142.5 315 5.277 1.794 0.3724