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Measurement E8M56

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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 : 1.26 — 1.28 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 15.5 2.133 1.191
7.5 45 10.72 1.625 1.208
7.5 75 18.8 4.942 1.254
7.5 285 18.42 5.059 1.429
7.5 315 10.97 1.812 1.612
7.5 345 16.11 2.305 1.126
22.5 15 10.61 0.8647 0.8728
22.5 45 15.73 2.248 0.945
22.5 75 14.74 2.893 0.9915
22.5 135 11.82 1.452 0.8769
22.5 165 11 0.7158 0.9008
22.5 195 12.03 0.8007 0.904
22.5 225 9.285 0.8236 0.8998
22.5 285 13.8 3.262 0.9487
22.5 315 9.985 1.406 0.9016
22.5 345 10.86 0.9394 0.8446
37.5 15 9.898 1.896 1.11
37.5 45 10.17 1.4 1.111
37.5 105 14.59 1.446 1.135
37.5 135 11.38 0.6987 1.108
37.5 165 10.02 0.5011 1.085
37.5 195 9.925 0.4903 1.095
37.5 225 11.2 0.6956 1.109
37.5 255 11.55 1.17 1.132
37.5 315 10.15 1.35 1.087
37.5 345 11.42 2.645 1.119
52.5 45 9.285 0.5749 0.7199
52.5 75 10.27 3.284 0.775
52.5 105 10.54 0.6362 0.7794
52.5 135 9.708 0.594 0.7408
52.5 165 7.943 0.4065 0.7125
52.5 195 8.57 0.4241 0.7311
52.5 225 9.487 0.5612 0.7463
52.5 255 10.93 0.6324 0.7896
52.5 285 14.65 3.5 0.747
52.5 315 9.011 0.6001 0.7449
67.5 45 6.97 1.044 0.6571
67.5 75 13.84 5.18 0.727
67.5 105 10.37 0.5239 0.7204
67.5 135 9.606 0.5988 0.6988
67.5 165 6.869 0.3556 0.6608
67.5 195 7.197 0.3574 0.6589
67.5 225 9.743 0.5963 0.7028
67.5 255 10.17 0.5028 0.7332
67.5 285 8.34 0.5026 0.7075
67.5 315 7.672 1.206 0.6809
82.5 15 4.832 1 0.6105
82.5 45 6.865 1.136 0.6308
82.5 75 8.534 0.4181 0.6833
82.5 105 8.672 0.417 0.6756
82.5 135 8.173 0.5616 0.659
82.5 165 6.121 0.3683 0.6327
82.5 195 6.679 0.3906 0.6265
82.5 225 8.63 0.5759 0.6816
82.5 255 9.727 0.4273 0.7039
82.5 285 8.49 0.4035 0.6814
82.5 315 5.448 0.9662 0.6106
82.5 345 6.463 1.813 0.6306
97.5 15 3.411 0.7166 0.4047
97.5 45 5.739 0.3614 0.4525
97.5 75 6.533 0.4245 0.4793
97.5 105 8.111 0.3951 0.5212
97.5 135 6.226 0.4109 0.4665
97.5 165 5.47 0.3433 0.4533
97.5 195 5.395 0.3269 0.4409
97.5 225 5.936 0.4073 0.4521
97.5 255 8.215 0.4053 0.503
97.5 285 6.452 0.3943 0.472
97.5 315 5.567 0.3557 0.4422
97.5 345 3.613 0.6342 0.4079
112.5 15 3.75 0.68 0.3629
112.5 45 4.594 0.3006 0.3921
112.5 75 5.601 0.4344 0.4096
112.5 105 6.577 0.3444 0.4361
112.5 135 4.358 0.3218 0.3845
112.5 165 3.593 0.2986 0.371
112.5 195 3.559 0.3238 0.3696
112.5 225 5.001 0.3783 0.3854
112.5 255 5.502 0.3045 0.4079
112.5 285 5.447 0.4381 0.4109
112.5 315 4.67 0.3025 0.3862
112.5 345 3.401 0.5617 0.3593
127.5 15 2.766 0.3268 0.3437
127.5 45 3.678 0.3079 0.363
127.5 75 4.09 0.3442 0.388
127.5 105 4.533 0.3519 0.3751
127.5 135 3.347 0.3419 0.3806
127.5 165 2.544 0.3527 0.351
127.5 195 3 0.5273 0.3529
127.5 225 3.397 0.3481 0.359
127.5 255 4.818 0.3691 0.3894
127.5 285 4.439 0.3607 0.3876
127.5 315 3.749 0.314 0.3568
127.5 345 3.305 0.4111 0.3508
142.5 15 1.955 0.2744 0.344
142.5 45 2.494 0.2901 0.3529
142.5 75 3.893 0.3562 0.3687
142.5 105 3.266 0.7456 0.3697
142.5 255 3.221 0.6099 0.3597
142.5 285 3.242 0.3505 0.3617
142.5 315 2.89 0.3372 0.353
142.5 345 2.683 0.4503 0.3513
157.5 15 2.745 0.9308 0.3575
157.5 45 2.748 0.975 0.349
157.5 315 3.489 1.123 0.357
157.5 345 1.59 0.409 0.338